lib/stackdepot.c:150:1: warning: symbol 'stack_depot_init_mutex' was not declared. Should it be static? Reported-by: kernel test robot <lkp(a)intel.com&gt; Signed-off-by: kernel test robot <lkp(a)intel.com&gt; --- stackdepot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/stackdepot.c b/lib/stackdepot.c index 9bb5333bf02f61..89b67aef9b320b 100644 --- a/lib/stackdepot.c +++ b/lib/stackdepot.c @@ -147,7 +147,7 @@ static struct stack_record *depot_alloc_stack(unsigned long *entries, int size, #define STACK_HASH_MASK (STACK_HASH_SIZE - 1) #define STACK_HASH_SEED 0x9747b28c -DEFINE_MUTEX(stack_depot_init_mutex); +static DEFINE_MUTEX(stack_depot_init_mutex); static bool stack_depot_disable; static struct stack_record **stack_table;