From: Peter P Waskiewicz Jr Date: Tue, 31 Jul 2007 00:13:45 +0000 (-0700) Subject: [NET]: Fix prio_tune() handling of root qdisc. X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0773192b0f8914222cd27e682c49f978a6c7860a;p=linux-beck.git [NET]: Fix prio_tune() handling of root qdisc. Fix the check in prio_tune() to see if sch->parent is TC_H_ROOT instead of sch->handle to load or reject the qdisc for multiqueue devices. Signed-off-by: Peter P Waskiewicz Jr Acked-by: Patrick McHardy Signed-off-by: David S. Miller --- diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c index 71bafde353a6..4a49db65772e 100644 --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -238,11 +238,13 @@ static int prio_tune(struct Qdisc *sch, struct rtattr *opt) /* If we're multiqueue, make sure the number of incoming bands * matches the number of queues on the device we're associating with. * If the number of bands requested is zero, then set q->bands to - * dev->egress_subqueue_count. + * dev->egress_subqueue_count. Also, the root qdisc must be the + * only one that is enabled for multiqueue, since it's the only one + * that interacts with the underlying device. */ q->mq = RTA_GET_FLAG(tb[TCA_PRIO_MQ - 1]); if (q->mq) { - if (sch->handle != TC_H_ROOT) + if (sch->parent != TC_H_ROOT) return -EINVAL; if (netif_is_multiqueue(sch->dev)) { if (q->bands == 0)