Patchwork sparc64: Provide cmpxchg64()

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Submitter Geert Uytterhoeven
Date March 20, 2013, 2:35 p.m.
Message ID <1363790104-8140-1-git-send-email-geert@linux-m68k.org>
Download mbox | patch
Permalink /patch/229405/
State Accepted
Delegated to: David Miller
Headers show

Comments

Geert Uytterhoeven - March 20, 2013, 2:35 p.m.
sparc64 allmodconfig:

drivers/block/blockconsole.c: In function ‘bcon_advance_console_bytes’:
drivers/block/blockconsole.c:164: error: implicit declaration of function ‘cmpxchg64’

Map cmpxchg64() to cmpxchg64_local() (which eventually calls
__cmpxchg_u64()) to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/sparc/include/asm/cmpxchg_64.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
David Miller - March 20, 2013, 6:42 p.m.
From: Geert Uytterhoeven <geert@linux-m68k.org>

Date: Wed, 20 Mar 2013 15:35:04 +0100

> sparc64 allmodconfig:

> 

> drivers/block/blockconsole.c: In function ‘bcon_advance_console_bytes’:

> drivers/block/blockconsole.c:164: error: implicit declaration of function ‘cmpxchg64’

> 

> Map cmpxchg64() to cmpxchg64_local() (which eventually calls

> __cmpxchg_u64()) to fix this.

> 

> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>


Applied to sparc-next, thanks.

Patch

diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h
index b30eb37..4adefe8 100644
--- a/arch/sparc/include/asm/cmpxchg_64.h
+++ b/arch/sparc/include/asm/cmpxchg_64.h
@@ -141,5 +141,6 @@  static inline unsigned long __cmpxchg_local(volatile void *ptr,
 	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
 	cmpxchg_local((ptr), (o), (n));					\
   })
+#define cmpxchg64(ptr, o, n)	cmpxchg64_local((ptr), (o), (n))
 
 #endif /* __ARCH_SPARC64_CMPXCHG__ */