fork: fix some -Wmissing-prototypes warnings
[ Upstream commit fb5bf31722d0805a3f394f7d59f2e8cd07acccb7 ]
We get a 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.
Also, remove arch_release_thread_stack() completely because no arch
seems to implement it since bb9d81264 (arch: remove tile port).
Link: http://lkml.kernel.org/r/1542170087-23645-1-git-send-email-wang.yi59@zte.com.cn
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index a74ec61..11b4fba 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
diff --git a/init/main.c b/init/main.c
index 51067e2..b1ab36f 100644
--- a/init/main.c
+++ b/init/main.c
@@ -98,7 +98,6 @@
static int kernel_init(void *);
extern void init_IRQ(void);
-extern void fork_init(void);
extern void radix_tree_init(void);
/*
diff --git a/kernel/fork.c b/kernel/fork.c
index 3352fdb..3d9d6a2 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -162,10 +162,6 @@
}
#endif
-void __weak arch_release_thread_stack(unsigned long *stack)
-{
-}
-
#ifndef CONFIG_ARCH_THREAD_STACK_ALLOCATOR
/*
@@ -348,7 +344,6 @@
return; /* Better to leak the stack than to free prematurely */
account_kernel_stack(tsk, -1);
- arch_release_thread_stack(tsk->stack);
free_thread_stack(tsk);
tsk->stack = NULL;
#ifdef CONFIG_VMAP_STACK