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Commit 827ebd64 authored by David S. Miller's avatar David S. Miller
Browse files

pkt_sched: Fix qdisc config when link is down. 



Bug reported by Stephen Hemminger.

We need to fetch the root from ->qdisc_sleeping not ->qdisc.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 22c7fdf4

net/sched/sch_api.c

+4 −4
Original line number Diff line number Diff line
@@ -189,7 +189,7 @@ struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle) 


	for (i = 0; i < dev->num_tx_queues; i++) {

		struct netdev_queue *txq = netdev_get_tx_queue(dev, i);

		struct Qdisc *q, *txq_root = txq->qdisc;

		struct Qdisc *q, *txq_root = txq->qdisc_sleeping;



		if (!(txq_root->flags & TCQ_F_BUILTIN) &&

		    txq_root->handle == handle)
@@ -793,7 +793,7 @@ qdisc_create(struct net_device *dev, struct netdev_queue *dev_queue, 
			}

		}

		if ((parent != TC_H_ROOT) && !(sch->flags & TCQ_F_INGRESS))

			list_add_tail(&sch->list, &dev_queue->qdisc->list);

			list_add_tail(&sch->list, &dev_queue->qdisc_sleeping->list);



		return sch;

	}
@@ -1236,11 +1236,11 @@ static int tc_dump_qdisc(struct sk_buff *skb, struct netlink_callback *cb) 
		q_idx = 0;



		dev_queue = netdev_get_tx_queue(dev, 0);

		if (tc_dump_qdisc_root(dev_queue->qdisc, skb, cb, &q_idx, s_q_idx) < 0)

		if (tc_dump_qdisc_root(dev_queue->qdisc_sleeping, skb, cb, &q_idx, s_q_idx) < 0)

			goto done;



		dev_queue = &dev->rx_queue;

		if (tc_dump_qdisc_root(dev_queue->qdisc, skb, cb, &q_idx, s_q_idx) < 0)

		if (tc_dump_qdisc_root(dev_queue->qdisc_sleeping, skb, cb, &q_idx, s_q_idx) < 0)

			goto done;



cont: