[Devel] [PATCH vz10 09/15] selftests/mqueue: fix -Wunused-variable warning for 'usage' in mq_open_tests

[Konstantin Khorenko]

  mq_open_tests.c:38:14: warning: 'usage' defined but not used [-Wunused-variable]
     38 | static char *usage =
        |              ^~~~~

Mark 'usage' with __attribute__((unused)) to fix the warning.
The variable is kept for documentation purposes.

https://virtuozzo.atlassian.net/browse/VSTOR-127529
Signed-off-by: Konstantin Khorenko <khorenko at virtuozzo.com>

Feature: fix selftests
---
 tools/testing/selftests/mqueue/mq_open_tests.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mqueue/mq_open_tests.c b/tools/testing/selftests/mqueue/mq_open_tests.c
index 9403ac01ba11..989b9b5d8ee5 100644
--- a/tools/testing/selftests/mqueue/mq_open_tests.c
+++ b/tools/testing/selftests/mqueue/mq_open_tests.c
@@ -35,7 +35,7 @@
 
 #include "../kselftest.h"
 
-static char *usage =
+static char __attribute__((unused)) *usage =
 "Usage:\n"
 "  %s path\n"
 "\n"
-- 
2.47.1