arch/x86/entry/entry_64.S:487: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/entry/entry_64.S:1660: Warning: no instruction mnemonic suffix given and no register operands; using default for `sysret' include/linux/typecheck.h:11:18: warning: comparison of distinct pointer types lacks a cast include/linux/typecheck.h:11:18: warning: comparison of distinct pointer types lacks a cast arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' arch/x86/kernel/process.c:456: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr'