[Devel] [PATCH RHEL10 COMMIT] selftests/mqueue: fix -Wunused-variable warning for 'usage' in mq_open_tests

[Konstantin Khorenko]

The commit is pushed to "branch-rh10-6.12.0-55.52.1.4.x.vz10-ovz" and will appear at git at bitbucket.org:openvz/vzkernel.git
after rh10-6.12.0-55.52.1.4.12.vz10
------>
commit cd1aea2748fd8e832d0dca878b0c5ccdd2d699fa
Author: Konstantin Khorenko <khorenko at virtuozzo.com>
Date:   Mon Mar 23 21:31:28 2026 +0100

    selftests/mqueue: fix -Wunused-variable warning for 'usage' in mq_open_tests
    
      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>
    Reviewed-by: Vasileios Almpanis <vasileios.almpanis 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 9403ac01ba11d..989b9b5d8ee56 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"