diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 47a30be1fe83..c0ac2c3b56e1 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2618,10 +2618,6 @@ static void check_cfs_rq_runtime(struct cfs_rq *cfs_rq)
 	throttle_cfs_rq(cfs_rq);
 }
 
-static inline u64 default_cfs_period(void);
-static int do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b, int overrun);
-static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b);
-
 static enum hrtimer_restart sched_cfs_slack_timer(struct hrtimer *timer)
 {
 	struct cfs_bandwidth *cfs_b =