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Remove unused variable from sem_post.c
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Wed, 21 Nov 2012 17:17:46 +0000
- Subject: Remove unused variable from sem_post.c
nptl/sysdeps/unix/sysv/linux/sem_post.c:__old_sem_post contains code
the initializes a variable nr, otherwise unused, with the result of
atomic_increment_val, so resulting in compiler warnings. This patch
fixes those by casting to (void) instead of having an unused variable.
Tested on MIPS that this eliminates the compiler warnings.
2012-11-21 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/sem_post.c (__old_sem_post): Cast result
of atomic_increment_val to (void) instead of storing in
otherwise-unused variable.
diff --git a/nptl/sysdeps/unix/sysv/linux/sem_post.c b/nptl/sysdeps/unix/sysv/linux/sem_post.c
index 67e8cc5..429d193 100644
--- a/nptl/sysdeps/unix/sysv/linux/sem_post.c
+++ b/nptl/sysdeps/unix/sysv/linux/sem_post.c
@@ -65,7 +65,7 @@ __old_sem_post (sem_t *sem)
{
int *futex = (int *) sem;
- int nr = atomic_increment_val (futex);
+ (void) atomic_increment_val (futex);
/* We always have to assume it is a shared semaphore. */
int err = lll_futex_wake (futex, 1, LLL_SHARED);
if (__builtin_expect (err, 0) < 0)
--
Joseph S. Myers
joseph@codesourcery.com