Commit 323ced96 authored by Tiwei Bie's avatar Tiwei Bie Committed by Richard Weinberger
Browse files

um: Fix -Wmissing-prototypes warnings for (rt_)sigreturn 



Use SYSCALL_DEFINE0 to define (rt_)sigreturn. This will address
below -Wmissing-prototypes warnings:

arch/x86/um/signal.c:453:6: warning: no previous prototype for ‘sys_sigreturn’ [-Wmissing-prototypes]
arch/x86/um/signal.c:560:6: warning: no previous prototype for ‘sys_rt_sigreturn’ [-Wmissing-prototypes]

Signed-off-by: default avatarTiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent f95bab86

arch/x86/um/signal.c

+3 −2
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/personality.h>

#include <linux/ptrace.h>

#include <linux/kernel.h>

#include <linux/syscalls.h>

#include <asm/unistd.h>

#include <linux/uaccess.h>

#include <asm/ucontext.h>
@@ -449,7 +450,7 @@ int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig, 
	return 0;

}



long sys_sigreturn(void)

SYSCALL_DEFINE0(sigreturn)

{

	unsigned long sp = PT_REGS_SP(&current->thread.regs);

	struct sigframe __user *frame = (struct sigframe __user *)(sp - 8);
@@ -556,7 +557,7 @@ int setup_signal_stack_si(unsigned long stack_top, struct ksignal *ksig, 
}

#endif



long sys_rt_sigreturn(void)

SYSCALL_DEFINE0(rt_sigreturn)

{

	unsigned long sp = PT_REGS_SP(&current->thread.regs);

	struct rt_sigframe __user *frame =