pkt_sched: Fix build with NET_SCHED disabled.

The stab bits can't be referenced uniless the full
packet scheduler layer is enabled.

Reported by Stephen Rothwell.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index db9ad655eb8a..b5f40d7ef724 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -333,8 +333,10 @@ static inline unsigned int qdisc_pkt_len(struct sk_buff *skb)
 
 static inline int qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
+#ifdef CONFIG_NET_SCHED
         if (sch->stab)
                 qdisc_calculate_pkt_len(skb, sch->stab);
+#endif
         return sch->enqueue(skb, sch);
 }