1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/sched/swait.c b/kernel/sched/swait.c
index b6fb2c3b3ff7..e68bb1398b05 100644
--- a/kernel/sched/swait.c
+++ b/kernel/sched/swait.c
@@ -69,7 +69,7 @@ void swake_up_all(struct swait_queue_head *q)
 }
 EXPORT_SYMBOL(swake_up_all);
 
-void __prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait)
+static void __prepare_to_swait(struct swait_queue_head *q, struct swait_queue *wait)
 {
         wait->task = current;
         if (list_empty(&wait->task_list))