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 <[email protected]> Suggested-by: Ritesh Harjani (IBM) <[email protected]> Signed-off-by: Venkat Rao Bagalkote <[email protected]> --- 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
