We get two warning when building kernel with W=1: kernel/fork.c:167:13: warning: no previous prototype for ‘arch_release_thread_stack’ [-Wmissing-prototypes] kernel/fork.c:779:13: warning: no previous prototype for ‘fork_init’ [-Wmissing-prototypes]
Add the missing declaration in head file to fix this. Signed-off-by: Yi Wang <wang.y...@zte.com.cn> --- arch/x86/include/asm/thread_info.h | 1 + include/linux/sched/task.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 2ff2a30..8621036 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -237,6 +237,7 @@ static inline int arch_within_stack_frames(const void * const stack, extern void arch_task_cache_init(void); extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); extern void arch_release_task_struct(struct task_struct *tsk); +extern void arch_release_thread_stack(unsigned long *stack); extern void arch_setup_new_exec(void); #define arch_setup_new_exec arch_setup_new_exec #endif /* !__ASSEMBLY__ */ diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 108ede9..44c6f15 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -39,6 +39,8 @@ extern void proc_caches_init(void); +extern void fork_init(void); + extern void release_task(struct task_struct * p); #ifdef CONFIG_HAVE_COPY_THREAD_TLS -- 1.8.3.1
