sch_netem: Replace ->requeue() method with open code

After removing netem classful functionality we are sure its inner
qdisc is tfifo, so we can replace qdisc->ops->requeue() method with
open code. After this patch there are no more ops->requeue() users.

The idea of this patch is by Patrick McHardy.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 1 deletions

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 2ad09594c8bc..1aa43453705c 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -233,7 +233,11 @@ static int netem_enqueue(struct sk_buff *skb, struct Qdisc *sch)
                  */
                 cb->time_to_send = psched_get_time();
                 q->counter = 0;
-                ret = q->qdisc->ops->requeue(skb, q->qdisc);
+
+                __skb_queue_head(&q->qdisc->q, skb);
+                q->qdisc->qstats.backlog += qdisc_pkt_len(skb);
+                q->qdisc->qstats.requeues++;
+                ret = NET_XMIT_SUCCESS;
         }
 
         if (likely(ret == NET_XMIT_SUCCESS)) {