diff options
| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-04-30 15:08:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-02 15:36:09 -0700 |
| commit | a5fc1abe438b87a9d128beebc377f78e2681a76d (patch) | |
| tree | 9a50c17db296c8e12b7c809428862aac519ef270 /include/asm-generic | |
| parent | 9e040a3e915d0a3da6caa665da7a458973e8f33e (diff) | |
| download | lwn-a5fc1abe438b87a9d128beebc377f78e2681a76d.tar.gz lwn-a5fc1abe438b87a9d128beebc377f78e2681a76d.zip | |
atomic: fix atomic_long_cmpxchg/xchg for 64 bit architectures
On a linux-next allyesconfig build:
kernel/trace/ring_buffer.c:1726:
warning: passing argument 1 of 'atomic_cmpxchg' from incompatible pointer type
linux-next/arch/s390/include/asm/atomic.h:112:
note: expected 'struct atomic_t *' but argument is of type 'struct atomic64_t *'
atomic_long_cmpxchg and atomic_long_xchg are incorrectly defined for 64
bit architectures. They should be mapped to the atomic64_* variants.
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/atomic.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 7abdaa91ccd3..3673a13b6703 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -132,9 +132,9 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u) #define atomic_long_inc_not_zero(l) atomic64_inc_not_zero((atomic64_t *)(l)) #define atomic_long_cmpxchg(l, old, new) \ - (atomic_cmpxchg((atomic64_t *)(l), (old), (new))) + (atomic64_cmpxchg((atomic64_t *)(l), (old), (new))) #define atomic_long_xchg(v, new) \ - (atomic_xchg((atomic64_t *)(l), (new))) + (atomic64_xchg((atomic64_t *)(l), (new))) #else /* BITS_PER_LONG == 64 */ |