From: Ethan Jackson <ethan@nicira.com>
Date: Tue, 9 Jul 2013 22:27:12 +0000 (-0700)
Subject: atomic: Suppress sparse warning.
X-Git-Tag: v2.12.3~10698
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=c5603ce8a18da14ba40508b23f0a27e2c4adf53a;p=mirror_ovs.git

atomic: Suppress sparse warning.

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>
---

diff --git a/include/sparse/pthread.h b/include/sparse/pthread.h
index 7ba6a05ab..723c351ad 100644
--- a/include/sparse/pthread.h
+++ b/include/sparse/pthread.h
@@ -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);      \