[PATCH] char: nvram: Remove unused nvram_mutex to fix -Wunused-variable warning

Venkat Rao Bagalkote
2026-03-23T07:25:11Z

drivers/char/nvram.c defines a static mutex 'nvram_mutex' which is never
used. This results in a compiler warning on linux-next builds:

warning: 'nvram_mutex' defined but not used [-Wunused-variable]

Remove the unused definition to avoid the warning.

Signed-off-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
---
drivers/char/nvram.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 9eff426a9286..2ce3307663ed 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -53,7 +53,7 @@
#include <asm/nvram.h>
#endif

-static DEFINE_MUTEX(nvram_mutex);
+static __maybe_unused DEFINE_MUTEX(nvram_mutex);
static DEFINE_SPINLOCK(nvram_state_lock);
static int nvram_open_cnt; /* #times opened */
static int nvram_open_mode; /* special open modes */
--
2.45.2