arch/mips/kernel/vpe-mt.c:177:7: warning: no previous prototype for ‘vpe_alloc’ [-Wmissing-prototypes] arch/mips/kernel/vpe-mt.c:195:5: warning: no previous prototype for ‘vpe_start’ [-Wmissing-prototypes] arch/mips/kernel/vpe-mt.c:205:5: warning: no previous prototype for ‘vpe_stop’ [-Wmissing-prototypes] arch/mips/kernel/vpe-mt.c:226:5: warning: no previous prototype for ‘vpe_free’ [-Wmissing-prototypes] fs/proc/task_mmu.c:598:41: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] fs/proc/task_mmu.c:605:41: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]