[PATCH 1/2] selftests/mqueue: fix warnings in mq_perf_tests

From: Eva Kurchatova

Date: Sun May 24 2026 - 15:09:13 EST


From: Konstantin Khorenko <khorenko@xxxxxxxxxxxxx>

mq_perf_tests.c: In function 'perf_test_thread':
mq_perf_tests.c:433:20: warning: variable 't' set but not used
[-Wunused-but-set-variable]
433 | pthread_t *t;
| ^
mq_perf_tests.c: At top level:
mq_perf_tests.c:45:14: warning: 'usage' defined but not used
[-Wunused-variable]
45 | static char *usage =
| ^~~~~

- Mark 'usage' with __attribute__((unused)) to fix -Wunused-variable.
- Remove unused variable 't' to fix -Wunused-but-set-variable.

Signed-off-by: Konstantin Khorenko <khorenko@xxxxxxxxxxxxx>
---
tools/testing/selftests/mqueue/mq_perf_tests.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c b/tools/testing/selftests/mqueue/mq_perf_tests.c
index 303c46eebd94..a13378464551 100644
--- a/tools/testing/selftests/mqueue/mq_perf_tests.c
+++ b/tools/testing/selftests/mqueue/mq_perf_tests.c
@@ -42,7 +42,7 @@

#include "kselftest.h"

-static char *usage =
+static char __attribute__((unused)) *usage =
"Usage:\n"
" %s [-c #[,#..] -f] path\n"
"\n"
@@ -430,12 +430,10 @@ void *perf_test_thread(void *arg)
unsigned int prio_in;
int i;
clockid_t clock;
- pthread_t *t;
struct timespec res, start, middle, end, send_total, recv_total;
unsigned long long nsec;
struct test *cur_test;

- t = &cpu_threads[0];
printf("\n\tStarted mqueue performance test thread on CPU %d\n",
cpus_to_pin[0]);
mq_prio_max = sysconf(_SC_MQ_PRIO_MAX);
--
2.54.0