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net: sch_generic: react upon IFF_NO_QUEUE flag 

Handle IFF_NO_QUEUE as alternative to tx_queue_len being zero.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phil Sutter 2015-08-13 19:01:07 +02:00 committed by David S. Miller
parent fa8187c964
commit 4b46995568
1 changed files with 4 additions and 2 deletions
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6
net/sched/sch_generic.c
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@ -735,7 +735,7 @@ static void attach_one_default_qdisc(struct net_device *dev,
{
struct Qdisc *qdisc = &noqueue_qdisc;
if (dev->tx_queue_len) {
if (dev->tx_queue_len && !(dev->priv_flags & IFF_NO_QUEUE)) {
qdisc = qdisc_create_dflt(dev_queue,
default_qdisc_ops, TC_H_ROOT);
if (!qdisc) {
@ -755,7 +755,9 @@ static void attach_default_qdiscs(struct net_device *dev)
txq = netdev_get_tx_queue(dev, 0);
if (!netif_is_multiqueue(dev) || dev->tx_queue_len == 0) {
if (!netif_is_multiqueue(dev) ||
dev->tx_queue_len == 0 ||
dev->priv_flags & IFF_NO_QUEUE) {
netdev_for_each_tx_queue(dev, attach_one_default_qdisc, NULL);
dev->qdisc = txq->qdisc_sleeping;
atomic_inc(&dev->qdisc->refcnt);