net_sched: fix a refcount_t issue with noop_qdisc

[karo-tx-linux.git] / include / net / sch_generic.h

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 67f815e5d52517390226bc3531b1ea7b5f1020bc..c1109cdbbfa6afb9aff0d6033aef7b615630ffc1 100644 (file)
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -101,6 +101,13 @@ struct Qdisc {
        spinlock_t              busylock ____cacheline_aligned_in_smp;
 };
 
+static inline void qdisc_refcount_inc(struct Qdisc *qdisc)
+{
+       if (qdisc->flags & TCQ_F_BUILTIN)
+               return;
+       refcount_inc(&qdisc->refcnt);
+}
+
 static inline bool qdisc_is_running(const struct Qdisc *qdisc)
 {
        return (raw_read_seqcount(&qdisc->running) & 1) ? true : false;