# # 2024-11-08T10:19:14.849433 # # make KBUILD_BUILD_USER=KernelCI LD=riscv64-linux-gnu-ld LLVM_IAS=1 ARCH=riscv LLVM=1 CROSS_COMPILE=riscv64-linux-gnu- CC="ccache clang" O=/tmp/kci/linux/build -C/tmp/kci/linux -j4 # make: Entering directory '/tmp/kci/linux' make[1]: Entering directory '/tmp/kci/linux/build' SYNC include/config/auto.conf.cmd GEN Makefile GEN Makefile WRAP arch/riscv/include/generated/uapi/asm/errno.h WRAP arch/riscv/include/generated/uapi/asm/fcntl.h WRAP arch/riscv/include/generated/uapi/asm/ioctl.h WRAP arch/riscv/include/generated/uapi/asm/ioctls.h WRAP arch/riscv/include/generated/uapi/asm/ipcbuf.h UPD include/generated/uapi/linux/version.h WRAP arch/riscv/include/generated/uapi/asm/mman.h WRAP arch/riscv/include/generated/uapi/asm/msgbuf.h WRAP arch/riscv/include/generated/uapi/asm/param.h WRAP arch/riscv/include/generated/uapi/asm/poll.h WRAP arch/riscv/include/generated/uapi/asm/posix_types.h WRAP arch/riscv/include/generated/uapi/asm/resource.h UPD include/config/kernel.release WRAP arch/riscv/include/generated/uapi/asm/sembuf.h UPD include/generated/compile.h WRAP arch/riscv/include/generated/uapi/asm/shmbuf.h HOSTCC scripts/dtc/dtc.o WRAP arch/riscv/include/generated/uapi/asm/siginfo.h WRAP arch/riscv/include/generated/uapi/asm/signal.h WRAP arch/riscv/include/generated/uapi/asm/socket.h WRAP arch/riscv/include/generated/uapi/asm/sockios.h WRAP arch/riscv/include/generated/uapi/asm/stat.h HOSTCC scripts/dtc/flattree.o WRAP arch/riscv/include/generated/uapi/asm/statfs.h WRAP arch/riscv/include/generated/uapi/asm/swab.h WRAP arch/riscv/include/generated/uapi/asm/termbits.h UPD include/generated/utsrelease.h WRAP arch/riscv/include/generated/uapi/asm/termios.h WRAP arch/riscv/include/generated/uapi/asm/types.h SYSHDR arch/riscv/include/generated/uapi/asm/unistd_32.h SYSHDR arch/riscv/include/generated/uapi/asm/unistd_64.h HOSTCC scripts/dtc/fstree.o HOSTCC scripts/dtc/data.o HOSTCC scripts/dtc/livetree.o HOSTCC scripts/dtc/treesource.o HOSTCC scripts/dtc/srcpos.o HOSTCC scripts/dtc/checks.o HOSTCC scripts/dtc/util.o LEX scripts/dtc/dtc-lexer.lex.c YACC scripts/dtc/dtc-parser.tab.[ch] HOSTCC scripts/dtc/libfdt/fdt.o HOSTCC scripts/dtc/libfdt/fdt_ro.o HOSTCC scripts/dtc/libfdt/fdt_wip.o HOSTCC scripts/dtc/libfdt/fdt_sw.o HOSTCC scripts/dtc/libfdt/fdt_rw.o HOSTCC scripts/dtc/libfdt/fdt_strerror.o HOSTCC scripts/dtc/libfdt/fdt_empty_tree.o WRAP arch/riscv/include/generated/asm/early_ioremap.h WRAP arch/riscv/include/generated/asm/flat.h WRAP arch/riscv/include/generated/asm/kvm_para.h WRAP arch/riscv/include/generated/asm/mmzone.h WRAP arch/riscv/include/generated/asm/parport.h WRAP arch/riscv/include/generated/asm/spinlock.h WRAP arch/riscv/include/generated/asm/spinlock_types.h WRAP arch/riscv/include/generated/asm/qrwlock.h WRAP arch/riscv/include/generated/asm/qrwlock_types.h WRAP arch/riscv/include/generated/asm/user.h WRAP arch/riscv/include/generated/asm/vmlinux.lds.h WRAP arch/riscv/include/generated/asm/device.h WRAP arch/riscv/include/generated/asm/div64.h WRAP arch/riscv/include/generated/asm/dma-mapping.h WRAP arch/riscv/include/generated/asm/dma.h WRAP arch/riscv/include/generated/asm/emergency-restart.h WRAP arch/riscv/include/generated/asm/hardirq.h WRAP arch/riscv/include/generated/asm/hw_irq.h WRAP arch/riscv/include/generated/asm/irq_regs.h WRAP arch/riscv/include/generated/asm/kmap_size.h WRAP arch/riscv/include/generated/asm/local.h WRAP arch/riscv/include/generated/asm/local64.h WRAP arch/riscv/include/generated/asm/msi.h WRAP arch/riscv/include/generated/asm/percpu.h WRAP arch/riscv/include/generated/asm/preempt.h WRAP arch/riscv/include/generated/asm/runtime-const.h WRAP arch/riscv/include/generated/asm/rwonce.h WRAP arch/riscv/include/generated/asm/serial.h WRAP arch/riscv/include/generated/asm/shmparam.h WRAP arch/riscv/include/generated/asm/softirq_stack.h WRAP arch/riscv/include/generated/asm/trace_clock.h WRAP arch/riscv/include/generated/asm/vga.h WRAP arch/riscv/include/generated/asm/video.h SYSTBL arch/riscv/include/generated/asm/syscall_table_32.h HOSTCC scripts/dtc/libfdt/fdt_addresses.o SYSTBL arch/riscv/include/generated/asm/syscall_table_64.h HOSTCC scripts/dtc/libfdt/fdt_overlay.o HOSTCC scripts/dtc/fdtoverlay.o HOSTCC scripts/dtc/dtc-lexer.lex.o HOSTCC scripts/dtc/dtc-parser.tab.o HOSTLD scripts/dtc/fdtoverlay HOSTLD scripts/dtc/dtc CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s UPD scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTCC scripts/mod/symsearch.o HOSTLD scripts/mod/modpost CC kernel/bounds.s CHKSHA1 ../include/linux/atomic/atomic-arch-fallback.h CHKSHA1 ../include/linux/atomic/atomic-instrumented.h UPD include/generated/timeconst.h CHKSHA1 ../include/linux/atomic/atomic-long.h UPD include/generated/bounds.h CC arch/riscv/kernel/asm-offsets.s In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/asm-offsets.c:10: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. UPD include/generated/asm-offsets.h CALL ../scripts/checksyscalls.sh HOSTCC usr/gen_init_cpio CC init/main.o CC arch/riscv/kernel/vendor_extensions/andes.o CC kernel/sched/core.o AR arch/riscv/kernel/vendor_extensions/built-in.a AR arch/riscv/kernel/probes/built-in.a AR arch/riscv/kernel/tests/built-in.a CC arch/riscv/kernel/pi/cmdline_early.o GEN usr/initramfs_data.cpio COPY usr/initramfs_inc_data AS usr/initramfs_data.o AR usr/built-in.a CC arch/riscv/kernel/pi/fdt_early.o In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR certs/built-in.a In file included from ../init/main.c:21: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ UPD init/utsversion-tmp.h CC mm/filemap.o In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw CC arch/riscv/kernel/pi/string.o (addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/core.c:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/pi/ctype.o CC arch/riscv/kernel/pi/lib-fdt.o CC arch/riscv/kernel/pi/lib-fdt_ro.o 7 warnings generated. CC init/do_mounts.o CC arch/riscv/kernel/pi/archrandom_early.o In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/filemap.c:20: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ OBJCOPY arch/riscv/kernel/pi/cmdline_early.pi.o OBJCOPY arch/riscv/kernel/pi/fdt_early.pi.o OBJCOPY arch/riscv/kernel/pi/string.pi.o OBJCOPY arch/riscv/kernel/pi/ctype.pi.o OBJCOPY arch/riscv/kernel/pi/lib-fdt.pi.o OBJCOPY arch/riscv/kernel/pi/lib-fdt_ro.pi.o OBJCOPY arch/riscv/kernel/pi/archrandom_early.pi.o AR arch/riscv/kernel/pi/built-in.a LDS arch/riscv/kernel/vmlinux.lds AS arch/riscv/kernel/head.o CC arch/riscv/kernel/soc.o In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts.c:7: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/sched/fair.o CC arch/riscv/kernel/alternative.o 7 warnings generated. CC mm/mempool.o 7 warnings generated. CC init/do_mounts_initrd.o In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/fair.c:28: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/cpu.o In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mempool.c:15: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/do_mounts_initrd.c:13: In file included from ../init/do_mounts.h:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/oom_kill.o 7 warnings generated. CC init/initramfs.o CC arch/riscv/kernel/cpufeature.o In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/oom_kill.c:29: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/sched/build_policy.o In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/initramfs.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/fadvise.o AS arch/riscv/kernel/entry.o 7 warnings generated. CC init/calibrate.o CC arch/riscv/kernel/irq.o In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_policy.c:19: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/fadvise.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC init/init_task.o In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/irq.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/maccess.o In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../init/init_task.c:2: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/process.o 7 warnings generated. In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __i CC init/version.o nsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/maccess.c:8: In file included from ../arch/riscv/include/asm/tlb.h:32: In file included from ../include/asm-generic/tlb.h:15: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/page-writeback.o In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/process.c:16: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR init/built-in.a CC arch/riscv/kernel/ptrace.o AR fs/notify/dnotify/built-in.a AR fs/notify/inotify/built-in.a AR fs/notify/fanotify/built-in.a AR fs/notify/built-in.a CC fs/iomap/trace.o 7 warnings generated. CC kernel/sched/build_utility.o In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page-writeback.c:21: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/trace.c:5: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/reset.o 7 warnings generated. CC fs/iomap/iter.o In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sched/build_utility.c:15: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/return_address.o 7 warnings generated. CC mm/folio-compat.o In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/iter.c:7: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/iomap/buffered-io.o In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/return_address.c:9: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/folio-compat.c:7: In file included from ../include/linux/migrate.h:6: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/setup.o 7 warnings generated. CC mm/readahead.o In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/buffered-io.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR kernel/sched/built-in.a CC kernel/locking/mutex.o In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/setup.c:21: In file included from ../include/linux/efi.h:20: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/readahead.c:116: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/signal.o In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/mutex.c:29: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/iomap/direct-io.o 7 warnings generated. CC mm/swap.o 7 warnings generated. CC kernel/locking/semaphore.o In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/signal.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/direct-io.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/semaphore.c:34: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/swap.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/syscall_table.o 7 warnings generated. CC fs/iomap/fiemap.o 7 warnings generated. CC kernel/locking/rwsem.o 7 warnings generated. CC mm/truncate.o In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/syscall_table.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/fiemap.c:8: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. 7 warnings generated. CC fs/iomap/seek.o CC arch/riscv/kernel/sys_riscv.o In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/truncate.c:12: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/locking/percpu-rwsem.o 7 warnings generated. CC mm/vmscan.o In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/iomap/seek.c:9: In file included from ../include/linux/iomap.h:7: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_riscv.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR fs/iomap/built-in.a AR fs/quota/built-in.a CC fs/proc/nommu.o 7 warnings generated. CC arch/riscv/kernel/sys_hwprobe.o CC kernel/locking/spinlock.o In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmscan.c:19: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/spinlock.c:21: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/nommu.c:18: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/sys_hwprobe.c:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/proc/task_nommu.o 7 warnings generated. CC kernel/locking/osq_lock.o 7 warnings generated. CC arch/riscv/kernel/time.o CC kernel/locking/rtmutex_api.o 7 warnings generated. CC mm/shrinker.o CC fs/proc/inode.o In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/time.c:9: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shrinker.c:2: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/traps.o CC kernel/locking/qrwlock.o 7 warnings generated. CC mm/shmem.o CC fs/proc/root.o In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/locking/qrwlock.c:13: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps.c:16: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h: AR kernel/locking/built-in.a 804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/shmem.c:28: In file included from ../include/linux/ramfs.h:5: In file included from ../include/linux/fs_parser.h:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/power/qos.o CC arch/riscv/kernel/riscv_ksyms.o In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/root.c:19: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/util.o 7 warnings generated. CC fs/proc/base.o CC arch/riscv/kernel/stacktrace.o In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/qos.c:40: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^7 warnings generated. In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.hIn file included from :13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] ../mm/util.c :838 | 12 outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ : In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ outsl(addrIn file included from ../mm/util.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ , buffer, In file included from ../mm/util.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/util.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/util.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/util.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/util.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/base.c:67: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/power/main.o In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/stacktrace.c:13: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/cacheinfo.o 7 warnings generated. CC mm/mmzone.o 7 warnings generated. CC fs/proc/generic.o In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/main.c:17: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/patch.o CC mm/vmstat.o 7 warnings generated. CC kernel/power/console.o CC fs/proc/array.o CC arch/riscv/kernel/vendor_extensions.o In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/vmstat.c:26: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:In file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' : In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/console.c:10: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIOIn file included from ../fs/proc/array.c:61: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] _ 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/traps_misaligned.o 7 warnings generated. CC kernel/power/process.o 7 warnings generated. CC mm/backing-dev.o 7 warnings generated. In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/process.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + CC fs/proc/fd.o port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/traps_misaligned.c:9: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/backing-dev.c:3: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/unaligned_access_speed.o 7 warnings generated. CC kernel/power/suspend.o 7 warnings generated. In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/fd.c:11: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC mm/mm_init.o 7 warnings generated. CC fs/proc/proc_tty.o In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/power/suspend.c:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AS arch/riscv/kernel/copy-unaligned.o AS arch/riscv/kernel/vec-copy-unaligned.o In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AS arch/riscv/kernel/fpu.o In file included from ../mm/mm_init.c:20: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/kernel_mode_fpu.o 7 warnings generated. AR kernel/power/built-in.a CC kernel/printk/printk.o CC fs/proc/cmdline.o CC arch/riscv/kernel/vector.o 7 warnings generated. CC mm/percpu.o In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk.c:29: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/proc/consoles.o CC arch/riscv/kernel/kernel_mode_vector.o In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/percpu.c:89: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/kernel/smpboot.o CC fs/proc/cpuinfo.o 7 warnings generated. CC kernel/printk/printk_safe.o 7 warnings generated. CC mm/slab_common.o In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smpboot.c:18: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/printk/printk_safe.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/smp.o CC fs/proc/devices.o 7 warnings generated. CC kernel/printk/nbcon.o In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slab_common.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/smp.c:12: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/devices.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/compaction.o 7 warnings generated. 7 warnings generated. CC fs/proc/interrupts.o CC arch/riscv/kernel/cpu_ops.o CC kernel/printk/printk_ringbuffer.o In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/compaction.c:12: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/interrupts.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/show_mem.o 7 warnings generated. CC fs/proc/loadavg.o CC arch/riscv/kernel/cpu_ops_spinwait.o CC kernel/printk/sysctl.o AS arch/riscv/kernel/suspend_entry.o CC arch/riscv/kernel/suspend.o In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr AR kernel/printk/built-in.a , buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC kernel/irq/irqdesc.o In file included from ../mm/show_mem.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/proc/meminfo.o In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../arch/riscv/kernel/suspend.c:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC mm/interval_tree.o In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdesc.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/meminfo.c:6: In file included from ../include/linux/hugetlb.h:10: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/perf_regs.o 7 warnings generated. CC fs/proc/stat.o 7 warnings generated. CC kernel/irq/handle.o In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/interval_tree.c:10: In file included from ../include/linux/rmap.h:12: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/list_lru.o In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/handle.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/perf_regs.c:6: In file included from ../include/linux/perf_event.h:52: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/stat.c:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/cpu-hotplug.o 7 warnings generated. CC fs/proc/uptime.o 7 warnings generated. CC kernel/irq/manage.o In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/list_lru.c:14: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/workingset.o In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/manage.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/kernel/cpu-hotplug.c:10: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/uptime.c:9: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/kernel/jump_label.o 7 warnings generated. CC fs/proc/util.o In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/workingset.c:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/irq/spurious.o CC fs/proc/version.o AR arch/riscv/kernel/built-in.a 7 warnings generated. CC arch/riscv/mm/init.o CC mm/debug.o In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/spurious.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/proc/softirqs.o In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/init.c:13: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buf CC kernel/irq/resend.o fer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/debug.c:11: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/mm/cacheflush.o 7 warnings generated. In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20 CC mm/gup.o : In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/softirqs.c:3: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/resend.c:15: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/proc/namespaces.o 7 warnings generated. CC kernel/irq/chip.o In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC arch/riscv/mm/context.o In file included from ../mm/gup.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/chip.c:11: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/mmap_lock.o In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/namespaces.c:8: In file included from ../include/net/net_namespace.h:43: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/proc/self.o CC arch/riscv/mm/pmem.o 7 warnings generated. CC kernel/irq/dummychip.o In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/mmap_lock.c:6: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/dummychip.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/proc/thread_self.o CC mm/nommu.o In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../arch/riscv/mm/pmem.c:7: In file included from ../include/linux/libnvdimm.h:14: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. 7 warnings generated. AR arch/riscv/mm/built-in.a CC kernel/irq/devres.o AR arch/riscv/net/built-in.a AR arch/riscv/errata/built-in.a CC arch/riscv/purgatory/purgatory.o CC arch/riscv/purgatory/sha256.o In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #def CC fs/proc/proc_sysctl.o ine outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/nommu.c:23: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/devres.c:3: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/irq/irqdomain.o AS arch/riscv/purgatory/entry.o 7 warnings generated. CC mm/page_alloc.o CC arch/riscv/purgatory/string.o In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/proc_sysctl.c:10: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/purgatory/ctype.o AS arch/riscv/purgatory/memcpy.o AS arch/riscv/purgatory/memset.o AS arch/riscv/purgatory/strcmp.o In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, AS arch/riscv/purgatory/strlen.o count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/irqdomain.c:7: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AS arch/riscv/purgatory/strncmp.o In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/page_alloc.c:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ LD arch/riscv/purgatory/purgatory.ro LD arch/riscv/purgatory/purgatory.chk AS arch/riscv/purgatory/kexec-purgatory.o 7 warnings generated. CC fs/proc/kmsg.o AR arch/riscv/purgatory/built-in.a AR arch/riscv/built-in.a AR ipc/built-in.a CC security/commoncap.o 7 warnings generated. CC kernel/irq/proc.o In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/proc.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc/kmsg.c:18: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR fs/proc/built-in.a CC fs/kernfs/mount.o In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../security/commoncap.c:9: In file included from ../include/linux/lsm_hooks.h:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/irq/cpuhotplug.o 7 warnings generated. AR security/built-in.a 7 warnings generated. In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804: AR crypto/built-in.a 2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outs CC mm/init-mm.o b(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/mount.c:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC block/partitions/core.o In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/cpuhotplug.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/kernfs/inode.o 7 warnings generated. CC kernel/irq/pm.o In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/init-mm.c:13: In file included from ../include/linux/iommu.h:10: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/partitions/core.c:13: In file included from ../block/partitions/check.h:2: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/memblock.o In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/pm.c:8: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR block/partitions/built-in.a In file included from ../fs/kernfs/inode.c:10: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC block/bdev.o 7 warnings generated. CC fs/kernfs/dir.o 7 warnings generated. In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, CC kernel/irq/msi.o buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/memblock.c:21: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bdev.c:14: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/slub.o In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/dir.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/msi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/fops.o 7 warnings generated. 7 warnings generated. CC fs/kernfs/file.o CC kernel/irq/ipi.o In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/slub.c:14: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/fops.c:9: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/file.c:14: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. 7 warnings generated. CC mm/dmapool.o CC kernel/irq/ipi-mux.o 7 warnings generated. CC block/bio.o 7 warnings generated. CC fs/kernfs/symlink.o In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/ipi-mux.c:12: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/dmapool.c:23: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/bio.c:6: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC mm/early_ioremap.o 7 warnings generated. CC kernel/irq/affinity.o In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernfs/symlink.c:14: In file included from ../fs/kernfs/kernfs-internal.h:20: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR fs/kernfs/built-in.a CC fs/sysfs/file.o In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../mm/early_ioremap.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/affinity.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/elevator.o 7 warnings generated. AR mm/built-in.a CC lib/math/div64.o 7 warnings generated. CC lib/math/gcd.o CC kernel/irq/matrix.o CC lib/math/lcm.o CC fs/sysfs/dir.o CC lib/math/int_log.o CC lib/math/int_pow.o CC lib/math/int_sqrt.o In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr CC lib/math/reciprocal_div.o , buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/elevator.c:28: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/math/rational.o In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq/matrix.c:9: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/sysfs/symlink.o 7 warnings generated. CC block/blk-core.o 7 warnings generated. AR kernel/irq/built-in.a CC kernel/rcu/update.o AR lib/math/built-in.a CC lib/crypto/chacha.o CC lib/crypto/blake2s.o In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/update.c:25: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/symlink.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-core.c:17: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/sysfs/mount.o 7 warnings generated. CC kernel/rcu/sync.o CC lib/crypto/blake2s-generic.o 7 warnings generated. CC block/blk-sysfs.o CC kernel/rcu/srcutree.o CC lib/crypto/blake2s-selftest.o In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sysfs/mount.c:18: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR lib/crypto/built-in.a CC lib/zlib_inflate/inffast.o 7 warnings generated. CC fs/sysfs/group.o CC lib/zlib_inflate/inflate.o In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-sysfs.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/zlib_inflate/infutil.o 7 warnings generated. CC block/blk-flush.o CC kernel/rcu/tree.o AR fs/sysfs/built-in.a CC fs/devpts/inode.o CC lib/zlib_inflate/inftrees.o CC lib/zlib_inflate/inflate_syms.o In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/tree.c:26: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-flush.c:68: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/blk-settings.o AR fs/devpts/built-in.a CC fs/ext2/balloc.o AR lib/zlib_inflate/built-in.a CC lib/zstd/zstd_decompress_module.o In file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count);In file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' In file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 812 | insw(addr, bufIn file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] fer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 847 | outsl(addrIn file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] , buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-settings.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../fs/ext2/balloc.c:15: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] In file included from 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/zstd/decompress/huf_decompress.o 7 warnings generated. CC block/blk-ioc.o 7 warnings generated. CC fs/ext2/dir.o In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ioc.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, CC lib/zstd/decompress/zstd_ddict.o buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/dir.c:25: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/rcu/rcu_segcblist.o CC lib/zstd/decompress/zstd_decompress.o 7 warnings generated. CC block/blk-map.o 7 warnings generated. CC fs/ext2/file.o CC lib/zstd/decompress/zstd_decompress_block.o In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rcu/rcu_segcblist.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR kernel/rcu/built-in.a AR kernel/livepatch/built-in.a In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC kernel/dma/mapping.o In file included from ../block/blk-map.c:8: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/file.c:23: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/ext2/ialloc.o 7 warnings generated. CC block/blk-merge.o CC lib/zstd/zstd_common_module.o In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/mapping.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/dma/direct.o In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ialloc.c:18: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-merge.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/zstd/common/debug.o 7 warnings generated. CC fs/ext2/inode.o CC lib/zstd/common/entropy_common.o CC lib/zstd/common/error_private.o CC lib/zstd/common/fse_decompress.o 7 warnings generated. CC block/blk-timeout.o In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/direct.c:10: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/zstd/common/zstd_common.o 7 warnings generated. CC kernel/dma/coherent.o AR lib/zstd/built-in.a CC lib/argv_split.o In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/inode.c:28: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count)In file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 104 | #defineIn file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ insb(aIn file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ ddr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, cIn file included from ../kernel/dma/coherent.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] ount) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 1175 | returIn file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] n (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-timeout.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/bug.o 7 warnings generated. CC block/blk-lib.o 7 warnings generated. CC fs/ext2/ioctl.o 7 warnings generated. AR kernel/dma/built-in.a CC kernel/entry/common.o In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bug.c:49: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/buildid.o In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-lib.c:7: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/ioctl.c:11: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/ext2/namei.o 7 warnings generated. CC block/blk-mq.o In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/entry/common.c:4: In file included from ../include/linux/entry-common.h:7: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/buildid.c:7: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/entry/syscall_user_dispatch.o 7 warnings generated. CC lib/cmdline.o In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/namei.c:34: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/cpumask.o In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/ext2/super.o AR kernel/entry/built-in.a CC kernel/time/time.o CC lib/ctype.o In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/super.c:25: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/dec_and_lock.o In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/time.c:31: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/decompress.o CC lib/decompress_inflate.o 7 warnings generated. CC fs/ext2/symlink.o 7 warnings generated. 7 warnings generated. CC block/blk-mq-tag.o CC kernel/time/timer.o CC lib/decompress_unzstd.o In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/symlink.c:21: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/ext2/trace.o In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer.c:21: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC lib/dump_stack.o In file included from ../block/blk-mq-tag.c:13: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ext2/trace.c:2: In file included from ../fs/ext2/ext2.h:20: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/blk-stat.o 7 warnings generated. AR fs/ext2/built-in.a CC fs/ramfs/inode.o 7 warnings generated. CC kernel/time/hrtimer.o In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/dump_stack.c:14: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/earlycpio.o CC lib/extable.o In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-stat.c:10: In file included from ../block/blk-stat.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/inode.c:27: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/blk-mq-sysfs.o In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | 7 warnings generated. ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: CC fs/ramfs/file-nommu.o performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/hrtimer.c:30: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/fdt.o CC lib/fdt_addresses.o CC lib/fdt_empty_tree.o 7 warnings generated. CC lib/fdt_ro.o CC kernel/time/sleep_timeout.o In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sysfs.c:4: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ramfs/file-nommu.c:11: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/fdt_rw.o 7 warnings generated. CC block/blk-mq-cpumap.o CC lib/fdt_strerror.o 7 warnings generated. AR fs/ramfs/built-in.a CC lib/fdt_sw.o In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sleep_timeout.c:12: In file included from ../kernel/time/tick-internal.h:6: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR fs/unicode/built-in.a 7 warnings generated. AR fs/hostfs/built-in.a CC fs/open.o CC kernel/time/timekeeping.o CC lib/fdt_wip.o CC lib/flex_proportions.o In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-cpumap.c:15: In file included from ../block/blk.h:5: In file included from ../include/linux/bio-integrity.h:5: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timekeeping.c:6: In file included from ../include/linux/timekeeper_internal.h:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/blk-mq-sched.o CC lib/idr.o In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/open.c:16: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/iomem_copy.o In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-sched.c:11: In file included from ../include/trace/events/block.h:8: In file included from ../include/linux/blktrace_api.h:5: In file included from ../include/linux/blk-mq.h:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. 7 warnings generated. CC kernel/time/ntp.o CC fs/read_write.o In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomem_copy.c:8: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/irq_regs.o 7 warnings generated. CC block/ioctl.o In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/ntp.c:10: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/is_single_threaded.o In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/read_write.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/time/clocksource.o CC lib/klist.o In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioctl.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/kobject.o 7 warnings generated. 7 warnings generated. CC fs/file_table.o CC block/genhd.o In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clocksource.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/time/jiffies.o CC lib/kobject_uevent.o In file included from ../block/genhd.c:13: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/genhd.c:13: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/genhd.c:13: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/genhd.c:13: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/genhd.c:13: In file included from ../fs/file_table.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../include/linux/blkdev.h:9In file included from ../fs/file_table.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ : In file included from In file included from ../include/linux/blk_types.h../fs/file_table.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ :10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffeIn file included from r,../fs/file_table.c :c16o: uIn file included from n../include/linux/security.ht:)35 : In file included from | ../include/linux/bpf.h ~~~~~~~~~~ ^: 31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | In file included from ~~~~~~~~~~ ^ ../block/genhd.c:13: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, counIn file included from t)../fs/file_table.c :_16_: oIn file included from u../include/linux/security.ht:s35l: (In file included from P../include/linux/bpf.hC:I31_: IIn file included from ../include/linux/memcontrol.hO:B13A: SIn file included from E../include/linux/cgroup.h :+26 : (In file included from a../include/linux/kernel_stat.hd:d8r: )In file included from ,../include/linux/interrupt.h :b11u: fIn file included from f../include/linux/hardirq.he:r11,: In file included from c./arch/riscv/include/generated/asm/hardirq.ho:u1n: tIn file included from ../include/asm-generic/hardirq.h): 17 : | In file included from ~~~~~~~~~~ ^../include/linux/irq.h :20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file_table.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from In file included from ../fs/file_table.c:16: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] ../block/genhd.c1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ :13: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/jiffies.c:7: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/super.o 7 warnings generated. CC kernel/time/timer_list.o 7 warnings generated. In file included from ../lib/kobject_uevent.c:23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kobject_uevent.c: CC block/ioprio.o 23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kobject_uevent.c:23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kobject_uevent.c:23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kobject_uevent.c:23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kobject_uevent.c:23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kobject_uevent.c:23: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/super.c:26: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/logic_pio.o In file included from ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.hIn file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ :11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/ioprio.c:27: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] In file included from 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/timer_list.c:14: In file included from ../include/linux/nmi.h:9: In file included from ../arch/riscv/include/asm/irq.h:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/time/timeconv.o 7 warnings generated. CC block/badblocks.o In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/logic_pio.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/char_dev.o 7 warnings generated. CC lib/maple_tree.o CC kernel/time/timecounter.o CC kernel/time/alarmtimer.o In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/char_dev.c:23: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #defin CC block/blk-rq-qos.o e insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/alarmtimer.c:18: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/stat.o 7 warnings generated. CC kernel/time/posix-timers.o In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-rq-qos.c:3: In file included from ../block/blk-rq-qos.h:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/stat.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC block/disk-events.o In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-timers.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/exec.o In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/disk-events.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/time/posix-cpu-timers.o CC lib/memcat_p.o 7 warnings generated. CC block/blk-ia-ranges.o In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/exec.c:33: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/nmi_backtrace.o In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-cpu-timers.c:12: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-ia-ranges.c:8: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: 7 warnings generated. In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/nmi_backtrace.c:18: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/pipe.o 7 warnings generated. CC kernel/time/posix-clock.o 7 warnings generated. CC block/early-lookup.o 7 warnings generated. CC lib/objpool.o In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pipe.c:17: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/early-lookup.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/posix-clock.c:12: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/plist.o CC lib/radix-tree.o 7 warnings generated. CC block/blk-mq-virtio.o 7 warnings generated. CC kernel/time/itimer.o 7 warnings generated. CC fs/namei.o In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/itimer.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-mq-virtio.c:7: In file included from ../include/linux/virtio_config.h:7: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/ratelimit.o 7 warnings generated. CC kernel/time/clockevents.o 7 warnings generated. CC block/blk-pm.o In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namei.c:25: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/rbtree.o In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/clockevents.c:10: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/seq_buf.o In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../block/blk-pm.c:4: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/time/tick-common.o 7 warnings generated. AR block/built-in.a CC lib/siphash.o AS arch/riscv/lib/clear_page.o 7 warnings generated. CC fs/fcntl.o In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-common.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC arch/riscv/lib/csum.o CC lib/string.o CC kernel/time/tick-broadcast.o CC lib/timerqueue.o CC arch/riscv/lib/delay.o CC lib/vsprintf.o AS arch/riscv/lib/memcpy.o In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fcntl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AS arch/riscv/lib/memmove.o AS arch/riscv/lib/memset.o In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/tick-broadcast.c:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC arch/riscv/lib/riscv_v_helpers.o 7 warnings generated. CC fs/ioctl.o In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/vsprintf.c:36: In file included from ../include/linux/rtc.h:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AS arch/riscv/lib/strcmp.o CC kernel/time/sched_clock.o AS arch/riscv/lib/strlen.o AS arch/riscv/lib/strncmp.o In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/time/sched_clock.c:6: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AS arch/riscv/lib/tishift.o In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/ioctl.c:8: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR kernel/time/built-in.a CC kernel/futex/core.o AS arch/riscv/lib/xor.o AR arch/riscv/lib/built-in.a AR arch/riscv/lib/lib.a CC kernel/futex/syscalls.o 7 warnings generated. CC fs/readdir.o 7 warnings generated. CC lib/win_minmax.o In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/core.c:36: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/futex/syscalls.c:3: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: CC kernel/futex/pi.o In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/readdir.c:19: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/xarray.o AR drivers/cache/built-in.a CC drivers/irqchip/irqchip.o 7 warnings generated. CC fs/select.o In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irqchip.c:14: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/futex/requeue.o CC drivers/irqchip/irq-riscv-intc.o CC lib/lockref.o In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/select.c:22: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/bcd.o CC lib/sort.o CC lib/parser.o In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-intc.c:13: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/futex/waitwake.o 7 warnings generated. CC drivers/irqchip/irq-riscv-aplic-main.o CC lib/debug_locks.o 7 warnings generated. CC fs/dcache.o CC lib/random32.o AR kernel/futex/built-in.a CC kernel/fork.o In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-main.c:13: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/bust_spinlocks.o 7 warnings generated. CC drivers/irqchip/irq-riscv-aplic-direct.o In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/dcache.c:29: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/fork.c:34: In file included from ../include/linux/mempolicy.h:15: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/kasprintf.o In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-direct.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/inode.o 7 warnings generated. CC drivers/irqchip/irq-riscv-aplic-msi.o CC lib/bitmap.o 7 warnings generated. CC kernel/exec_domain.o In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/inode.c:10: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-aplic-msi.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/irqchip/irq-riscv-imsic-state.o In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exec_domain.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/scatterlist.o 7 warnings generated. CC kernel/panic.o 7 warnings generated. CC fs/attr.o In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-state.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/panic.c:14: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/scatterlist.c:9: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/irqchip/irq-riscv-imsic-early.o 7 warnings generated. CC lib/list_sort.o 7 warnings generated. CC kernel/cpu.o In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC lib/uuid.o In file included from ../fs/attr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/iov_iter.o 7 warnings generated. CC fs/bad_inode.o In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-early.c:10: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/irqchip/irq-riscv-imsic-platform.o In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cpu.c:13: In file included from ../include/linux/sched/isolation.h:7: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iov_iter.c:3: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/file.o In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-riscv-imsic-platform.c:11: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/exit.o 7 warnings generated. CC drivers/irqchip/irq-sifive-plic.o 7 warnings generated. CC lib/clz_ctz.o In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/file.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/bsearch.o In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/exit.c:16: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/bsearch.c:11: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/irqchip/irq-sifive-plic.c:9: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/filesystems.o 7 warnings generated. 7 warnings generated. AR drivers/irqchip/built-in.a CC lib/find_bit.o AR drivers/bus/mhi/built-in.a CC drivers/bus/simple-pm-bus.o CC lib/llist.o 7 warnings generated. CC kernel/softirq.o CC lib/lwq.o In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/filesystems.c:10: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/bus/built-in.a CC lib/memweight.o AR drivers/pwm/built-in.a In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR drivers/leds/blink/built-in.a In file included from ../kernel/softirq.c:13: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/leds/simple/built-in.a 7 warnings generated. AR drivers/leds/built-in.a CC fs/namespace.o CC lib/kfifo.o AR drivers/pci/controller/dwc/built-in.a AR drivers/pci/controller/mobiveil/built-in.a AR drivers/pci/controller/plda/built-in.a AR drivers/pci/controller/built-in.a AR drivers/pci/switch/built-in.a CC drivers/pci/of.o 7 warnings generated. CC kernel/resource.o In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/kfifo.c:8: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/namespace.c:11: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pci/of.c:12: In file included from ../include/linux/pci.h:38: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/percpu-refcount.o 7 warnings generated. AR drivers/pci/built-in.a CC drivers/video/console/dummycon.o In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/resource.c:21: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/sysctl.o CC lib/rhashtable.o AR drivers/video/console/built-in.a AR drivers/video/backlight/built-in.a AR drivers/video/fbdev/core/built-in.a AR drivers/video/fbdev/omap/built-in.a AR drivers/video/fbdev/omap2/omapfb/dss/built-in.a AR drivers/video/fbdev/omap2/omapfb/displays/built-in.a AR drivers/video/fbdev/omap2/omapfb/built-in.a AR drivers/video/fbdev/omap2/built-in.a AR drivers/video/fbdev/built-in.a AR drivers/video/built-in.a AR drivers/idle/built-in.a AR drivers/char/ipmi/built-in.a AR drivers/amba/built-in.a 7 warnings generated. AR drivers/clk/actions/built-in.a CC fs/seq_file.o AR drivers/clk/analogbits/built-in.a AR drivers/clk/bcm/built-in.a AR drivers/clk/imgtec/built-in.a AR drivers/clk/imx/built-in.a AR drivers/clk/ingenic/built-in.a In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR drivers/clk/mediatek/built-in.a In file included from ../kernel/sysctl.c:24: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/clk/microchip/built-in.a AR drivers/clk/mstar/built-in.a AR drivers/clk/mvebu/built-in.a AR drivers/clk/ralink/built-in.a AR drivers/clk/renesas/built-in.a AR drivers/clk/socfpga/built-in.a AR drivers/clk/sophgo/built-in.a AR drivers/clk/sprd/built-in.a AR drivers/clk/starfive/built-in.a AR drivers/clk/sunxi-ng/built-in.a AR drivers/clk/ti/built-in.a AR drivers/clk/versatile/built-in.a AR drivers/clk/xilinx/built-in.a CC drivers/clk/clk-devres.o CC lib/base64.o CC lib/once.o CC fs/xattr.o 7 warnings generated. CC kernel/capability.o CC drivers/clk/clk-bulk.o CC lib/refcount.o In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/xattr.c:18: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/rcuref.o CC lib/usercopy.o In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/capability.c:17: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/clk/clkdev.o 7 warnings generated. 7 warnings generated. CC kernel/ptrace.o CC fs/libfs.o CC lib/errseq.o CC lib/bucket_locks.o CC drivers/clk/clk.o In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ptrace.c:19: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/libfs.c:7: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/generic-radix-tree.o 7 warnings generated. CC kernel/user.o 7 warnings generated. CC fs/fs-writeback.o CC lib/bitmap-str.o In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/user.c:18: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/clk/clk-divider.o 7 warnings generated. CC kernel/signal.o CC lib/string_helpers.o In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs-writeback.c:24: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-divider.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/clk/clk-fixed-factor.o In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/signal.c:30: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/pnode.o CC lib/hexdump.o CC lib/kstrtox.o CC fs/splice.o CC drivers/clk/clk-fixed-rate.o 7 warnings generated. CC kernel/sys.o CC lib/iomap_copy.o In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/splice.c:21: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/iomap_copy.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/devres.o In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/sys.c:10: In file included from ../include/linux/mm_inline.h:8: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fixed-rate.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/clk/clk-gate.o 7 warnings generated. CC fs/sync.o In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devres.c:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/hweight.o CC lib/bitrev.o In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gate.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/clk/clk-multiplier.o 7 warnings generated. In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC kernel/umh.o In file included from ../fs/sync.c:6: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-multiplier.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. HOSTCC lib/gen_crc32table CC drivers/clk/clk-mux.o 7 warnings generated. CC fs/utimes.o CC lib/xxhash.o In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-mux.c:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../kernel/umh.c:9: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/clk/clk-composite.o In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/utimes.c:6: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/percpu_counter.o 7 warnings generated. 7 warnings generated. CC fs/d_path.o CC kernel/workqueue.o In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/workqueue.c:32: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/clk/clk-fractional-divider.o CC lib/syscall.o In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/d_path.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/stack.o In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-fractional-divider.c:43: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/clk/clk-gpio.o CC lib/errname.o CC lib/checksum.o CC fs/fs_struct.o In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clk/clk-gpio.c:20: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC lib/strncpy_from_user.o 7 warnings generated. CC drivers/clk/clk-conf.o CC fs/statfs.o 7 warnings generated. CC kernel/pid.o CC lib/strnlen_user.o In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/statfs.c:2: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/clk/built-in.a AR drivers/soc/apple/built-in.a AR drivers/soc/aspeed/built-in.a AR drivers/soc/bcm/built-in.a AR drivers/soc/fsl/built-in.a AR drivers/soc/fujitsu/built-in.a AR drivers/soc/hisilicon/built-in.a AR drivers/soc/imx/built-in.a AR drivers/soc/ixp4xx/built-in.a AR drivers/soc/loongson/built-in.a 7 warnings generated. In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, AR drivers/soc/mediatek/built-in.a count) | ~~~~~~~~~~ ^ In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/pid.c:37: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC fs/fs_pin.o AR drivers/soc/microchip/built-in.a AR drivers/soc/nuvoton/built-in.a AR drivers/soc/pxa/built-in.a CC lib/sg_pool.o AR drivers/soc/amlogic/built-in.a AR drivers/soc/qcom/built-in.a AR drivers/soc/renesas/built-in.a AR drivers/soc/rockchip/built-in.a AR drivers/soc/sunxi/built-in.a AR drivers/soc/ti/built-in.a AR drivers/soc/versatile/built-in.a AR drivers/soc/xilinx/built-in.a AR drivers/soc/built-in.a AR drivers/pmdomain/actions/built-in.a AR drivers/pmdomain/amlogic/built-in.a AR drivers/pmdomain/apple/built-in.a AR drivers/pmdomain/arm/built-in.a AR drivers/pmdomain/bcm/built-in.a AR drivers/pmdomain/imx/built-in.a AR drivers/pmdomain/mediatek/built-in.a AR drivers/pmdomain/qcom/built-in.a AR drivers/pmdomain/renesas/built-in.a AR drivers/pmdomain/rockchip/built-in.a 7 warnings generated. AR drivers/pmdomain/samsung/built-in.a AR drivers/pmdomain/st/built-in.a CC kernel/task_work.o AR drivers/pmdomain/starfive/built-in.a AR drivers/pmdomain/sunxi/built-in.a AR drivers/pmdomain/tegra/built-in.a AR drivers/pmdomain/ti/built-in.a AR drivers/pmdomain/xilinx/built-in.a CC drivers/pmdomain/core.o CC fs/nsfs.o In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/sg_pool.c:3: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC lib/sbitmap.o In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/task_work.c:5: In file included from ../include/linux/resume_user_mode.h:8: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/pmdomain/core.c:12: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/extable.o CC lib/group_cpus.o In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/extable.c:7: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/nsfs.c:3: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/fs_types.o 7 warnings generated. CC kernel/params.o 7 warnings generated. CC drivers/pmdomain/governor.o CC lib/devmem_is_allowed.o CC fs/fs_context.o In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../lib/devmem_is_allowed.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR drivers/pmdomain/built-in.a AR lib/lib.a GEN lib/crc32table.h CC drivers/virtio/virtio.o CC lib/crc32.o In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/params.c:15: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_context.c:11: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/kthread.o 7 warnings generated. CC fs/fs_parser.o In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR lib/built-in.a AR sound/built-in.a CC drivers/virtio/virtio_ring.o 7 warnings generated. CC drivers/virtio/virtio_anchor.o In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fs_parser.c:9: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/kthread.c:19: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_ring.c:6: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/fsopen.o 7 warnings generated. CC kernel/sys_ni.o In file included from ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from 7 warnings generated. ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC kernel/nsproxy.o In file included from ../drivers/virtio/virtio_anchor.c:2: In file included from ../include/linux/virtio.h:7: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/virtio/virtio_mmio.o 7 warnings generated. CC fs/init.o In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/fsopen.c:8: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/nsproxy.c:15: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/notifier.o In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/notifier.c:3: In file included from ../include/linux/kprobes.h:28: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC fs/kernel_read_file.o In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/virtio/virtio_mmio.c:58: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/init.c:13: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/ksysfs.o 7 warnings generated. 7 warnings generated. AR drivers/virtio/built-in.a CC fs/mnt_idmapping.o CC drivers/tty/vt/vt_ioctl.o In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/kernel_read_file.c:5: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksysfs.c:15: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/cred.o 7 warnings generated. CC drivers/tty/vt/vc_screen.o CC fs/remap_range.o In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt_ioctl.c:29: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/cred.c:17: In file included from ../include/linux/init_task.h:9: In file included from ../include/linux/ftrace.h:10: In file included from ../include/linux/trace_recursion.h:5: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:557 warnings generated. : note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vc_screen.c:34: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/tty/vt/selection.o In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffe7r, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h warnings generated. :106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, 7 warnings generated. buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/remap_range.c:9: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/reboot.o CC drivers/tty/vt/keyboard.o 7 warnings generated. CC fs/pidfs.o In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/selection.c:25: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/reboot.c:13: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/tty/vt/vt.o In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/keyboard.c:33: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/pidfs.c:5: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/async.o 7 warnings generated. COPY drivers/tty/vt/defkeymap.c CC drivers/tty/vt/consolemap.o 7 warnings generated. CC fs/buffer.o In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/vt/vt.c:93: In file included from ../include/linux/kbd_kern.h:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/buffer.c:24: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/range.o CC kernel/smpboot.o 7 warnings generated. CC kernel/ucount.o HOSTCC drivers/tty/vt/conmakehash CC drivers/tty/vt/defkeymap.o CONMK drivers/tty/vt/consolemap_deftbl.c CC drivers/tty/vt/consolemap_deftbl.o AR drivers/tty/vt/built-in.a CC fs/mpage.o CC drivers/tty/serial/8250/8250_core.o 7 warnings generated. CC drivers/tty/serial/8250/8250_platform.o CC kernel/regset.o In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/mpage.c:21: In file included from ../include/linux/bio.h:10: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_core.c:29: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_platform.c:13: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/ksyms_common.o 7 warnings generated. 7 warnings generated. CC fs/proc_namespace.o AR drivers/char/agp/built-in.a CC drivers/char/mem.o 7 warnings generated. CC drivers/tty/serial/8250/8250_port.o In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/ksyms_common.c:7: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_port.c:18: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/proc_namespace.c:12: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/mem.c:23: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/groups.o 7 warnings generated. CC fs/anon_inodes.o 7 warnings generated. CC drivers/char/random.o 7 warnings generated. CC drivers/tty/serial/8250/8250_early.o In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/groups.c:8: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/char/random.c:39: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/anon_inodes.c:23: In file included from ../include/linux/pseudo_fs.h:4: In file included from ../include/linux/fs_context.h:14: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated7 warnings generated. . CC fs/locks.o CC kernel/freezer.o In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_early.c:32: In file included from ../include/linux/serial_8250.h:11: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/tty/serial/8250/8250_of.o 7 warnings generated. CC drivers/char/misc.o In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/freezer.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/locks.c:57: In file included from ../include/linux/security.h:35: In file included from ../include/linux/bpf.h:31: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/smp.o In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/8250/8250_of.c:13: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/char/built-in.a 7 warnings generated. 7 warnings generated. AR drivers/iommu/amd/built-in.a AR drivers/tty/serial/8250/built-in.a CC fs/binfmt_script.o AR drivers/iommu/intel/built-in.a In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | out CC drivers/tty/serial/serial_core.o sw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/smp.c:17: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/iommu/arm/arm-smmu/built-in.a AR drivers/iommu/arm/arm-smmu-v3/built-in.a AR drivers/iommu/arm/built-in.a AR drivers/iommu/iommufd/built-in.a AR drivers/iommu/riscv/built-in.a AR drivers/iommu/built-in.a AR drivers/gpu/host1x/built-in.a 7 warnings generated. CC kernel/stop_machine.o AR drivers/gpu/drm/tests/built-in.a AR drivers/gpu/drm/arm/built-in.a AR drivers/gpu/drm/display/built-in.a AR drivers/gpu/drm/renesas/rcar-du/built-in.a AR drivers/gpu/drm/renesas/rz-du/built-in.a AR drivers/gpu/drm/renesas/built-in.a AR drivers/gpu/drm/omapdrm/built-in.a CC fs/binfmt_elf_fdpic.o AR drivers/gpu/drm/tilcdc/built-in.a AR drivers/gpu/drm/imx/built-in.a In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define ins AR drivers/gpu/drm/i2c/built-in.a w(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_core.c:25: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/gpu/drm/panel/built-in.a AR drivers/gpu/drm/bridge/analogix/built-in.a AR drivers/gpu/drm/bridge/cadence/built-in.a AR drivers/gpu/drm/bridge/imx/built-in.a AR drivers/gpu/drm/bridge/synopsys/built-in.a AR drivers/gpu/drm/bridge/built-in.a AR drivers/gpu/drm/hisilicon/built-in.a AR drivers/gpu/drm/mxsfb/built-in.a AR drivers/gpu/drm/tiny/built-in.a AR drivers/gpu/drm/xlnx/built-in.a AR drivers/gpu/drm/gud/built-in.a AR drivers/gpu/drm/solomon/built-in.a AR drivers/gpu/drm/built-in.a AR drivers/gpu/vga/built-in.a AR drivers/gpu/built-in.a CC drivers/base/power/sysfs.o In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/stop_machine.c:19: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/binfmt_elf_fdpic.c:26: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC kernel/seccomp.o 7 warnings generated. CC drivers/tty/serial/serial_base_bus.o 7 warnings generated. CC fs/binfmt_flat.o CC drivers/base/power/generic_ops.o In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/seccomp.c:29: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_base_bus.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. 7 warnings generated. CC drivers/tty/serial/serial_ctrl.o CC kernel/utsname_sysctl.o CC fs/drop_caches.o CC drivers/base/power/common.o CC kernel/irq_work.o In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_ctrl.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../fs/drop_caches.c:6: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../fs/drop_caches.c:6: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1In file included from ../kernel/irq_work.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] : 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq_work.c:14In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ : In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.hIn file included from ../fs/drop_caches.c:6: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ :1: In file included from ../include/asm-generic/hardirq.h:In file included from ../fs/drop_caches.c:6: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 17: In file included from ../include/linux/irq.h:In file included from ../fs/drop_caches.c:6: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 20: In file included from ../include/linux/io.hIn file included from :14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq_work.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/irq_work.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ ../fs/drop_caches.c:6: In file included from In file included from ../kernel/irq_work.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ ../include/linux/pagemap.h:11: In file included from ../kernel/irq_work.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, couIn file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] n 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ t); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ CC drivers/tty/serial/serial_port.o In file included from ../kernel/irq_work.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (portIn file included from ../fs/drop_caches.c :6: In file included from ../include/linux/pagemap.h:11: In file included from ../include/linux/highmem.h:12: In file included from > M../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from M../arch/riscv/include/asm/io.h:136I: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]O_U 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ PPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/base/power/qos.o 7 warnings generated. CC fs/sysctls.o 7 warnings generated. CC kernel/cpu_pm.o AR fs/built-in.a CC drivers/base/power/runtime.o In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/serial_port.c:16: In file included from ../include/linux/serial_core.h:13: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/tty/serial/earlycon.o In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/qos.c:38: In file included from ../include/trace/events/power.h:12: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC kernel/jump_label.o 7 warnings generated. CC kernel/context_tracking.o In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/serial/earlycon.c:16: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/base/power/wakeirq.o In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/context_tracking.c:23: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR drivers/tty/serial/built-in.a CC kernel/iomem.o AR drivers/tty/ipwireless/built-in.a CC drivers/tty/tty_io.o 7 warnings generated. CC kernel/rseq.o In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeirq.c:4: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/power/main.o In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_io.c:75: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/iomem.c:4: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/power/wakeup.o In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../kernel/rseq.c:13: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/main.c:28: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR kernel/built-in.a AR virt/lib/built-in.a AR virt/built-in.a CC drivers/base/power/wakeup_stats.o 7 warnings generated. CC drivers/tty/n_tty.o In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/wakeup.c:14: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/power/clock_ops.o 7 warnings generated. CC drivers/tty/tty_ioctl.o CC drivers/tty/tty_ldisc.o In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/power/clock_ops.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/tty/tty_buffer.o In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ldisc.c:6: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR drivers/base/power/built-in.a CC drivers/base/firmware_loader/builtin/main.o In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_ioctl.c:28: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/tty/tty_port.o 7 warnings generated. CC drivers/tty/tty_mutex.o AR drivers/base/firmware_loader/builtin/built-in.a AR drivers/base/firmware_loader/built-in.a CC drivers/base/regmap/regmap.o CC drivers/tty/tty_ldsem.o In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/tty_port.c:20: In file included from ../include/linux/serdev.h:10: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/tty/tty_baudrate.o CC drivers/tty/tty_jobctrl.o In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap.c:23: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/tty/n_null.o 7 warnings generated. CC drivers/base/regmap/regcache.o CC drivers/base/regmap/regcache-rbtree.o CC drivers/tty/pty.o AR drivers/base/test/built-in.a CC drivers/base/component.o In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache.c:15: In file included from ../drivers/base/regmap/trace.h:11: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-rbtree.c:15: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/tty/pty.c:12: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. 7 warnings generated. CC drivers/base/regmap/regcache-flat.o CC drivers/base/regmap/regcache-maple.o 7 warnings generated. AR drivers/tty/built-in.a CC drivers/block/virtio_blk.o CC drivers/base/core.o In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-flat.c:13: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regcache-maple.c:14: In file included from ../drivers/base/regmap/internal.h:14: In file included from ../include/linux/regmap.h:20: In file included from ../include/linux/iopoll.h:14: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/regmap/regmap-mmio.o 7 warnings generated. CC drivers/base/bus.o In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/block/virtio_blk.c:5: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/core.c:12: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/regmap/regmap-mmio.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR drivers/block/built-in.a AR drivers/misc/eeprom/built-in.a AR drivers/misc/cb710/built-in.a AR drivers/misc/lis3lv02d/built-in.a AR drivers/misc/cardreader/built-in.a AR drivers/misc/keba/built-in.a 7 warnings generated. AR drivers/misc/built-in.a AR drivers/base/regmap/built-in.a CC drivers/mfd/syscon.o CC drivers/base/dd.o CC drivers/base/syscore.o In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/mfd/syscon.c:15: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/driver.o In file included from ../drivers/base/dd.c:22: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/dd.c:22: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/dd.c:22: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/dd.c:22: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/dd.c:22: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/dd.c:22: In file included from ../include/linux/dma-map-ops.h:9: In file included from ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] ../drivers/base/dd.c 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ :22: In file included from ../include/linux/dma-map-ops.h:9: In file included from In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ ../include/linux/dma-mapping.h:8: In file included from ../include/linux/scatterlist.h:9In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] : In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../drivers/base/syscore.c:11: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/mfd/built-in.a AR drivers/nfc/built-in.a AR drivers/dax/hmem/built-in.a AR drivers/dax/built-in.a AR drivers/cxl/core/built-in.a AR drivers/cxl/built-in.a 7 warnings generated. AR drivers/macintosh/built-in.a AR drivers/scsi/built-in.a CC drivers/base/class.o AR drivers/nvme/common/built-in.a AR drivers/nvme/host/built-in.a AR drivers/nvme/target/built-in.a AR drivers/nvme/built-in.a AR drivers/net/phy/qcom/built-in.a 7 warnings generated. AR drivers/net/phy/built-in.a CC drivers/base/platform.o AR drivers/net/pse-pd/built-in.a AR drivers/net/mdio/built-in.a AR drivers/net/pcs/built-in.a AR drivers/net/built-in.a AR drivers/firewire/built-in.a AR drivers/cdrom/built-in.a CC drivers/base/cpu.o AR drivers/auxdisplay/built-in.a AR drivers/usb/built-in.a CC drivers/input/input.o In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/class.c:19: In file included from ../include/linux/blkdev.h:9: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform.c:15: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/firmware.o In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/cpu.c:20: In file included from ../include/linux/tick.h:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/base/init.o 7 warnings generated. CC drivers/base/map.o AR drivers/i2c/algos/built-in.a AR drivers/i2c/busses/built-in.a CC drivers/input/input-compat.o AR drivers/i2c/muxes/built-in.a AR drivers/i2c/built-in.a AR drivers/i3c/built-in.a AR drivers/media/i2c/built-in.a AR drivers/media/tuners/built-in.a AR drivers/media/rc/keymaps/built-in.a AR drivers/media/rc/built-in.a AR drivers/media/common/b2c2/built-in.a AR drivers/media/common/saa7146/built-in.a In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, AR drivers/media/common/siano/built-in.a count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/init.c:11: In file included from ../include/linux/backing-dev.h:16: In file included from ../include/linux/writeback.h:13: In file included from ../include/linux/blk_types.h:10: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/media/common/v4l2-tpg/built-in.a AR drivers/media/common/videobuf2/built-in.a AR drivers/media/common/built-in.a 7 warnings generated. CC drivers/base/devres.o CC drivers/base/attribute_container.o AR drivers/media/platform/allegro-dvt/built-in.a AR drivers/media/platform/amlogic/meson-ge2d/built-in.a AR drivers/media/platform/amlogic/built-in.a AR drivers/media/platform/amphion/built-in.a AR drivers/media/platform/aspeed/built-in.a AR drivers/media/platform/atmel/built-in.a AR drivers/media/platform/broadcom/built-in.a AR drivers/media/platform/cadence/built-in.a AR drivers/media/platform/chips-media/coda/built-in.a AR drivers/media/platform/chips-media/wave5/built-in.a AR drivers/media/platform/chips-media/built-in.a CC drivers/input/input-mt.o AR drivers/media/platform/imagination/built-in.a AR drivers/media/platform/intel/built-in.a AR drivers/media/platform/marvell/built-in.a AR drivers/media/platform/mediatek/jpeg/built-in.a AR drivers/media/platform/mediatek/mdp/built-in.a AR drivers/media/platform/mediatek/vcodec/common/built-in.a AR drivers/media/platform/mediatek/vcodec/encoder/built-in.a AR drivers/media/platform/mediatek/vcodec/decoder/built-in.a AR drivers/media/platform/mediatek/vcodec/built-in.a AR drivers/media/platform/mediatek/vpu/built-in.a AR drivers/media/platform/mediatek/mdp3/built-in.a AR drivers/media/platform/mediatek/built-in.a AR drivers/media/platform/microchip/built-in.a AR drivers/media/platform/nuvoton/built-in.a AR drivers/media/platform/nvidia/tegra-vde/built-in.a AR drivers/media/platform/nvidia/built-in.a AR drivers/media/platform/nxp/dw100/built-in.a AR drivers/media/platform/nxp/imx-jpeg/built-in.a CC drivers/base/transport_class.o AR drivers/media/platform/nxp/imx8-isi/built-in.a AR drivers/media/platform/nxp/built-in.a AR drivers/media/platform/qcom/camss/built-in.a AR drivers/media/platform/qcom/venus/built-in.a AR drivers/media/platform/qcom/built-in.a AR drivers/media/platform/raspberrypi/pisp_be/built-in.a AR drivers/media/platform/raspberrypi/rp1-cfe/built-in.a CC drivers/base/topology.o CC drivers/input/input-poller.o AR drivers/media/platform/raspberrypi/built-in.a AR drivers/media/platform/renesas/rcar-vin/built-in.a AR drivers/media/platform/renesas/rzg2l-cru/built-in.a AR drivers/media/platform/renesas/vsp1/built-in.a AR drivers/media/platform/renesas/built-in.a AR drivers/media/platform/rockchip/rga/built-in.a AR drivers/media/platform/rockchip/rkisp1/built-in.a AR drivers/media/platform/rockchip/built-in.a AR drivers/media/platform/samsung/exynos-gsc/built-in.a AR drivers/media/platform/samsung/exynos4-is/built-in.a AR drivers/media/platform/samsung/s3c-camif/built-in.a AR drivers/media/platform/samsung/s5p-g2d/built-in.a AR drivers/media/platform/samsung/s5p-mfc/built-in.a AR drivers/media/platform/samsung/s5p-jpeg/built-in.a CC drivers/base/container.o AR drivers/media/platform/samsung/built-in.a AR drivers/media/platform/st/sti/bdisp/built-in.a AR drivers/media/platform/st/sti/c8sectpfe/built-in.a AR drivers/media/platform/st/sti/delta/built-in.a AR drivers/media/platform/st/sti/hva/built-in.a AR drivers/media/platform/st/stm32/built-in.a AR drivers/media/platform/st/built-in.a CC drivers/input/ff-core.o In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/topology.c:14: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/media/platform/sunxi/sun4i-csi/built-in.a 7 warnings generated. AR drivers/media/platform/sunxi/sun6i-csi/built-in.a CC drivers/base/property.o AR drivers/media/platform/sunxi/sun6i-mipi-csi2/built-in.a AR drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/built-in.a AR drivers/media/platform/sunxi/sun8i-di/built-in.a CC drivers/base/cacheinfo.o AR drivers/media/platform/sunxi/sun8i-rotate/built-in.a AR drivers/media/platform/sunxi/built-in.a AR drivers/media/platform/ti/am437x/built-in.a AR drivers/media/platform/ti/cal/built-in.a AR drivers/media/platform/ti/vpe/built-in.a AR drivers/media/platform/ti/davinci/built-in.a AR drivers/media/platform/ti/j721e-csi2rx/built-in.a AR drivers/media/platform/ti/omap/built-in.a AR drivers/media/platform/ti/omap3isp/built-in.a AR drivers/media/platform/ti/built-in.a AR drivers/media/platform/verisilicon/built-in.a AR drivers/media/platform/via/built-in.a AR drivers/media/platform/xilinx/built-in.a AR drivers/media/platform/built-in.a CC drivers/input/touchscreen.o AR drivers/media/pci/ttpci/built-in.a AR drivers/media/pci/b2c2/built-in.a AR drivers/media/pci/pluto2/built-in.a AR drivers/media/pci/dm1105/built-in.a In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/property.c:16: In file included from ../include/linux/phy.h:16: In file included from ../include/linux/ethtool.h:18: In file included from ../include/linux/if_ether.h:19: In file included from ../include/linux/skbuff.h:17: In file included from ../include/linux/bvec.h:10: In file included from ../include/linux/highmem.h:12: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/media/pci/pt1/built-in.a AR drivers/media/pci/pt3/built-in.a AR drivers/media/pci/mantis/built-in.a AR drivers/media/pci/ngene/built-in.a AR drivers/media/pci/ddbridge/built-in.a AR drivers/media/pci/saa7146/built-in.a AR drivers/media/pci/smipcie/built-in.a AR drivers/media/pci/netup_unidvb/built-in.a AR drivers/media/pci/intel/ipu3/built-in.a AR drivers/media/pci/intel/ivsc/built-in.a AR drivers/media/pci/intel/built-in.a AR drivers/media/pci/built-in.a AR drivers/media/usb/b2c2/built-in.a AR drivers/media/usb/dvb-usb/built-in.a CC drivers/base/swnode.o AR drivers/media/usb/dvb-usb-v2/built-in.a AR drivers/media/usb/s2255/built-in.a AR drivers/media/usb/siano/built-in.a AR drivers/media/usb/ttusb-budget/built-in.a AR drivers/media/usb/ttusb-dec/built-in.a 7 warnings generated. AR drivers/media/usb/built-in.a AR drivers/media/mmc/siano/built-in.a AR drivers/media/firewire/built-in.a AR drivers/media/mmc/built-in.a AR drivers/media/spi/built-in.a AR drivers/media/test-drivers/built-in.a AR drivers/ptp/built-in.a AR drivers/media/built-in.a AR drivers/input/built-in.a CC drivers/power/reset/syscon-reboot.o AR drivers/mmc/built-in.a AR drivers/ufs/built-in.a AR drivers/firmware/arm_ffa/built-in.a CC drivers/clocksource/timer-of.o AR drivers/firmware/arm_scmi/built-in.a AR drivers/firmware/broadcom/built-in.a AR drivers/firmware/cirrus/built-in.a AR drivers/firmware/meson/built-in.a AR drivers/firmware/microchip/built-in.a AR drivers/firmware/efi/built-in.a AR drivers/firmware/imx/built-in.a AR drivers/firmware/psci/built-in.a AR drivers/firmware/qcom/built-in.a AR drivers/firmware/smccc/built-in.a AR drivers/firmware/tegra/built-in.a In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR drivers/firmware/xilinx/built-in.a In file included from ../drivers/power/reset/syscon-reboot.c:9: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/firmware/built-in.a AR drivers/hid/built-in.a CC drivers/of/base.o In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-of.c:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/power/reset/syscon-poweroff.o CC drivers/base/devtmpfs.o 7 warnings generated. CC drivers/clocksource/timer-probe.o In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/power/reset/syscon-poweroff.c:10: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR drivers/power/reset/built-in.a In file included from ../drivers/base/devtmpfs.c:19: In file included from ../include/linux/syscalls.h:94: In file included from ../include/trace/syscall.h:7: In file included from ../include/linux/trace_events.h:9: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/of/cpu.o AR drivers/power/built-in.a AR drivers/platform/goldfish/built-in.a AR drivers/platform/built-in.a In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ AR drivers/hwtracing/intel_th/built-in.a In file included from ../drivers/clocksource/timer-probe.c:9: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. AR drivers/android/built-in.a CC drivers/of/device.o CC drivers/clocksource/dummy_timer.o 7 warnings generated. CC drivers/base/platform-msi.o In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/dummy_timer.c:8: In file included from ../include/linux/clockchips.h:14: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/of/module.o In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/device.c:5: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/clocksource/timer-clint.o 7 warnings generated. In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/base/platform-msi.c:12: In file included from ../include/linux/msi.h:24: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/of/platform.o 7 warnings generated. CC drivers/base/arch_topology.o In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/clocksource/timer-clint.c:11: In file included from ../include/linux/clocksource.h:22: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ CC drivers/of/property.o In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:137 warnings generated. : In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/platform.c:14: In file included from ../include/linux/amba/bus.h:19: In file included from ../include/linux/regulator/consumer.h:35: In file included from ../include/linux/suspend.h:5: In file included from ../include/linux/swap.h:9: In file included from ../include/linux/memcontrol.h:13: In file included from ../include/linux/cgroup.h:26: In file included from ../include/linux/kernel_stat.h:8: In file included from ../include/linux/interrupt.h:11: In file included from ../include/linux/hardirq.h:11: In file included from ./arch/riscv/include/generated/asm/hardirq.h:1: In file included from ../include/asm-generic/hardirq.h:17: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ AR drivers/clocksource/built-in.a CC drivers/of/kobj.o In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/property.c:25: In file included from ../include/linux/of_address.h:7: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. CC drivers/of/fdt.o AR drivers/base/built-in.a DTC drivers/of/empty_root.dtb CC drivers/of/fdt_address.o CC drivers/of/address.o 7 warnings generated. CC drivers/of/irq.o CC drivers/of/of_reserved_mem.o In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/fdt.c:12: In file included from ../include/linux/crash_dump.h:5: In file included from ../include/linux/kexec.h:20: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/address.c:6: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:804:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 804 | insb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:104:53: note: expanded from macro 'insb' 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:812:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 812 | insw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:105:53: note: expanded from macro 'insw' 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:820:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 820 | insl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:106:53: note: expanded from macro 'insl' 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:829:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 829 | outsb(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:118:55: note: expanded from macro 'outsb' 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:838:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 838 | outsw(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:119:55: note: expanded from macro 'outsw' 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:847:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 847 | outsl(addr, buffer, count); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ ../arch/riscv/include/asm/io.h:120:55: note: expanded from macro 'outsl' 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE + (addr), buffer, count) | ~~~~~~~~~~ ^ In file included from ../drivers/of/irq.c:24: In file included from ../include/linux/of_irq.h:7: In file included from ../include/linux/irq.h:20: In file included from ../include/linux/io.h:14: In file included from ../arch/riscv/include/asm/io.h:136: ../include/asm-generic/io.h:1175:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ 7 warnings generated. WRAP drivers/of/empty_root.dtb.S AS drivers/of/empty_root.dtb.o 7 warnings generated. 7 warnings generated. AR drivers/of/built-in.a AR drivers/built-in.a AR built-in.a AR vmlinux.a LD vmlinux.o OBJCOPY modules.builtin.modinfo GEN modules.builtin MODPOST vmlinux.symvers UPD include/generated/utsversion.h CC init/version-timestamp.o LD vmlinux NM System.map OBJCOPY arch/riscv/boot/Image Kernel: arch/riscv/boot/Image is ready GZIP arch/riscv/boot/Image.gz Kernel: arch/riscv/boot/Image.gz is ready make[1]: Leaving directory '/tmp/kci/linux/build' make: Leaving directory '/tmp/kci/linux'