diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 80498c22d001b..b3ff610d35045 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -958,7 +958,7 @@ void qdisc_free(struct Qdisc *qdisc)
 	kfree((char *) qdisc - qdisc->padded);
 }
 
-void qdisc_free_cb(struct rcu_head *head)
+static void qdisc_free_cb(struct rcu_head *head)
 {
 	struct Qdisc *q = container_of(head, struct Qdisc, rcu);