[tip: x86/cleanups] x86/mce: Add copy_mc_fragile_handle_tail() prototype

[tip-bot2 for Arnd Bergmann]

The following commit has been merged into the x86/cleanups branch of tip:

Commit-ID:     e9c2a283e7d9d4e207b5ab4aa1723d62ee2ecbee
Gitweb:        https://git.kernel.org/tip/e9c2a283e7d9d4e207b5ab4aa1723d62ee2ecbee
Author:        Arnd Bergmann <arnd@xxxxxxxx>
AuthorDate:    Tue, 16 May 2023 21:35:44 +02:00
Committer:     Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
CommitterDate: Thu, 18 May 2023 11:56:18 -07:00

x86/mce: Add copy_mc_fragile_handle_tail() prototype

copy_mc_fragile_handle_tail() is only called from assembler,
but 'make W=1' complains about a missing prototype:

arch/x86/lib/copy_mc.c:26:1: warning: no previous prototype for ‘copy_mc_fragile_handle_tail’ [-Wmissing-prototypes]
   26 | copy_mc_fragile_handle_tail(char *to, char *from, unsigned len)

Add the prototype to avoid the warning.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx>
Link: https://lore.kernel.org/all/20230516193549.544673-16-arnd%40kernel.org
---
 arch/x86/include/asm/mce.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 9646ed6..180b1cb 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -350,4 +350,7 @@ static inline void mce_amd_feature_init(struct cpuinfo_x86 *c)		{ }
 #endif
 
 static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c)	{ return mce_amd_feature_init(c); }
+
+unsigned long copy_mc_fragile_handle_tail(char *to, char *from, unsigned len);
+
 #endif /* _ASM_X86_MCE_H */