From 75a5fc9e5033f47e955406e300a070004c14b8ae Mon Sep 17 00:00:00 2001
From: Marcus Haehnel <marcus.haehnel@kernkonzept.com>
Date: Sun, 26 Nov 2023 00:56:59 +0100
Subject: linuxthreads: Avoid unused variable warning
The spurious_wakeup_count variable is set but is never actually used for
the semaphore implementation. To avoid a clang warning for this case
remove the unused variable.
---
libpthread/linuxthreads/semaphore.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
(limited to 'libpthread/linuxthreads')
diff --git a/libpthread/linuxthreads/semaphore.c b/libpthread/linuxthreads/semaphore.c
index 9025dfee6..9464204a9 100644
--- a/libpthread/linuxthreads/semaphore.c
+++ b/libpthread/linuxthreads/semaphore.c
@@ -61,7 +61,6 @@ int sem_wait(sem_t * sem)
volatile pthread_descr self = thread_self();
pthread_extricate_if extr;
int already_canceled = 0;
- int spurious_wakeup_count;
/* Set up extrication interface */
extr.pu_object = sem;
@@ -90,7 +89,6 @@ int sem_wait(sem_t * sem)
}
/* Wait for sem_post or cancellation, or fall through if already canceled */
- spurious_wakeup_count = 0;
while (1)
{
suspend(self);
@@ -98,8 +96,7 @@ int sem_wait(sem_t * sem)
&& (THREAD_GETMEM(self, p_woken_by_cancel) == 0
|| THREAD_GETMEM(self, p_cancelstate) != PTHREAD_CANCEL_ENABLE))
{
- /* Count resumes that don't belong to us. */
- spurious_wakeup_count++;
+ /* Resume does not belong to us. */
continue;
}
break;
@@ -213,7 +210,6 @@ int sem_timedwait(sem_t *sem, const struct timespec *abstime)
pthread_descr self = thread_self();
pthread_extricate_if extr;
int already_canceled = 0;
- int spurious_wakeup_count;
__pthread_lock(&sem->__sem_lock, self);
if (sem->__sem_value > 0) {
@@ -250,7 +246,6 @@ int sem_timedwait(sem_t *sem, const struct timespec *abstime)
__pthread_do_exit(PTHREAD_CANCELED, CURRENT_STACK_FRAME);
}
- spurious_wakeup_count = 0;
while (1)
{
if (timedsuspend(self, abstime) == 0) {
@@ -277,8 +272,7 @@ int sem_timedwait(sem_t *sem, const struct timespec *abstime)
&& (THREAD_GETMEM(self, p_woken_by_cancel) == 0
|| THREAD_GETMEM(self, p_cancelstate) != PTHREAD_CANCEL_ENABLE))
{
- /* Count resumes that don't belong to us. */
- spurious_wakeup_count++;
+ /* Resume does not belong to us. */
continue;
}
break;
--
cgit v1.2.3