[PATCH v3] char: nvram: Remove unused nvram_mutex to fix -Wunused-variable warning

Venkat Rao Bagalkote
2026-03-30T06:22:30Z

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.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com>
---
v3:
- Removed global nvram_mutex entirely

drivers/char/nvram.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 9eff426a9286..9ab2744cd375 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -53,7 +53,6 @@
#include <asm/nvram.h>
#endif

-static 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