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atomic: Suppress sparse warning.

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With the latest version of sparse, the ATOMIC_VAR_INIT macro
generates the following warning.  This patch suppresses it.

warning: Using plain integer as NULL pointer

Signed-off-by: Ethan Jackson <ethan@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
This commit is contained in:
Ethan Jackson
2013-07-09 15:27:12 -07:00
parent a4fff9cc39
commit c5603ce8a1
1 changed files with 6 additions and 0 deletions
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6
include/sparse/pthread.h
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@@ -33,6 +33,12 @@ int pthread_rwlock_unlock(pthread_rwlock_t *rwlock) OVS_RELEASES(rwlock);
int pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *mutex)
OVS_MUST_HOLD(mutex);
/* Sparse complains about the proper PTHREAD_MUTEX_INITIALIZER definition.
* Luckily, it's not a real compiler so we can overwrite it with something
* simple. */
#undef PTHREAD_MUTEX_INITIALIZER
#define PTHREAD_MUTEX_INITIALIZER {}
#define pthread_mutex_trylock(MUTEX) \
({ \
int retval = pthread_mutex_trylock(mutex); \