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| author | Chen Gang <gang.chen@asianux.com> | 2013-05-27 19:57:01 +0800 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2013-06-05 10:14:21 -0700 |
| commit | b5514786ec3257c8703fc7f29bdf98b42253ee39 (patch) | |
| tree | fec532fa34662e03e2582d19783f49ca2ae11e75 /arch/xtensa | |
| parent | 54c0af9f1a1bfe9639666aea789dae6a37a741cf (diff) | |
| download | linux-b5514786ec3257c8703fc7f29bdf98b42253ee39.tar.bz2 | |
arch: xtensa: include: asm: compiling issue, need cmpxchg64() defined.
When compiling with 'allmodconfig', some of drivers need cmpxchg64(),
xtensa does not supply 64-bit implementation for 'xchg', so use the
'generic' implementation.
e.g. (for next-20130527 tree):
drivers/block/blockconsole.c:164:2: error: implicit declaration of function ‘cmpxchg64’ [-Werror=implicit-function-declaration]
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/include/asm/cmpxchg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/cmpxchg.h b/arch/xtensa/include/asm/cmpxchg.h index d9ab131bc1aa..370b26f38414 100644 --- a/arch/xtensa/include/asm/cmpxchg.h +++ b/arch/xtensa/include/asm/cmpxchg.h @@ -93,6 +93,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr, ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\ (unsigned long)(n), sizeof(*(ptr)))) #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) +#define cmpxchg64(ptr, o, n) cmpxchg64_local((ptr), (o), (n)) /* * xchg_u32 |