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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-02-14 11:10:14 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-03-25 11:49:36 +0100 |
| commit | 26f15caaf993bbb6f246a30aad3c96a349564528 (patch) | |
| tree | 3dc7f4d680d254776ac3882e49807d4d7fbf39b7 /arch/s390/include/asm/cmpxchg.h | |
| parent | s390: remove 31 bit syscalls (diff) | |
| download | linux-dev-26f15caaf993bbb6f246a30aad3c96a349564528.tar.xz linux-dev-26f15caaf993bbb6f246a30aad3c96a349564528.zip | |
s390/cmpxchg: simplify cmpxchg_double
Since sizeof(long) == 4 is always false now, simplify cmpxchg_double a bit.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/cmpxchg.h')
| -rw-r--r-- | arch/s390/include/asm/cmpxchg.h | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h index 6259895fcd97..4eadec466b8c 100644 --- a/arch/s390/include/asm/cmpxchg.h +++ b/arch/s390/include/asm/cmpxchg.h @@ -80,15 +80,10 @@ extern void __cmpxchg_double_called_with_bad_pointer(void); ({ \ __typeof__(p1) __p1 = (p1); \ __typeof__(p2) __p2 = (p2); \ - int __ret; \ BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \ BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \ VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\ - if (sizeof(long) == 4) \ - __ret = __cmpxchg_double_4(__p1, __p2, o1, o2, n1, n2); \ - else \ - __ret = __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \ - __ret; \ + __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \ }) #define system_has_cmpxchg_double() 1 |