diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 531fac1d2875..3023929852e8 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -941,7 +941,7 @@ 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);