pkt_sched: Remove qdisc->ops->requeue() etc.

After implementing qdisc->ops->peek() and changing sch_netem into
classless qdisc there are no more qdisc->ops->requeue() users. This
patch removes this method with its wrappers (qdisc_requeue()), and
also unused qdisc->requeue structure. There are a few minor fixes of
warnings (htb_enqueue()) and comments btw.

The idea to kill ->requeue() and a similar patch were first developed
by David S. Miller.

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

1 files changed, 0 insertions, 7 deletions

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index e5646614e88d..5bcef13408c8 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -97,11 +97,6 @@ static int tclass_notify(struct sk_buff *oskb, struct nlmsghdr *n,
 
    Auxiliary routines:
 
-   ---requeue
-
-   requeues once dequeued packet. It is used for non-standard or
-   just buggy devices, which can defer output even if netif_queue_stopped()=0.
-
    ---peek
 
    like dequeue but without removing a packet from the queue
@@ -151,8 +146,6 @@ int register_qdisc(struct Qdisc_ops *qops)
 
         if (qops->enqueue == NULL)
                 qops->enqueue = noop_qdisc_ops.enqueue;
-        if (qops->requeue == NULL)
-                qops->requeue = noop_qdisc_ops.requeue;
         if (qops->peek == NULL) {
                 if (qops->dequeue == NULL) {
                         qops->peek = noop_qdisc_ops.peek;