The following commit has been merged into the x86/cleanups branch of tip:
Commit-ID: 7dfe553affd0d003c7535b7ba60d09193471ea9d
Gitweb:
https://git.kernel.org/tip/7dfe553affd0d003c7535b7ba60d09193471ea9d
Author: Masahiro Yamada <[email protected]>
AuthorDate: Mon, 01 Mar 2021 22:15:26 +09:00
Committer: Ingo Molnar <[email protected]>
CommitterDate: Thu, 25 Mar 2021 16:20:41 +01:00
x86/syscalls: Fix -Wmissing-prototypes warnings from COND_SYSCALL()
Building kernel/sys_ni.c with W=1 emits tons of -Wmissing-prototypes warnings:
$ make W=1 kernel/sys_ni.o
[ snip ]
CC kernel/sys_ni.o
./arch/x86/include/asm/syscall_wrapper.h:83:14: warning: no previous
prototype for '__ia32_sys_io_setup' [-Wmissing-prototypes]
...
The problem is in __COND_SYSCALL(), the __SYS_STUB0() and __SYS_STUBx() macros
defined a few lines above already have forward declarations.
Let's do likewise for __COND_SYSCALL() to fix the warnings.
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Tested-by: Mickaël Salaün <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
---
arch/x86/include/asm/syscall_wrapper.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/syscall_wrapper.h
b/arch/x86/include/asm/syscall_wrapper.h
index a84333a..80c08c7 100644
--- a/arch/x86/include/asm/syscall_wrapper.h
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -80,6 +80,7 @@ extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
}
#define __COND_SYSCALL(abi, name) \
+ __weak long __##abi##_##name(const struct pt_regs *__unused); \
__weak long __##abi##_##name(const struct pt_regs *__unused) \
{ \
return sys_ni_syscall(); \
