From: Peilin Ye peilin.ye@bytedance.com
[ Upstream commit 2d5f6a8d7aef7852a9ecc555f88c673a1c91754f ]
Grafting ingress and clsact Qdiscs does not need a for-loop in qdisc_graft(). Refactor it. No functional changes intended.
Tested-by: Pedro Tammela pctammela@mojatatu.com Acked-by: Jamal Hadi Salim jhs@mojatatu.com Reviewed-by: Jamal Hadi Salim jhs@mojatatu.com Reviewed-by: Vlad Buslov vladbu@nvidia.com Signed-off-by: Peilin Ye peilin.ye@bytedance.com Signed-off-by: Paolo Abeni pabeni@redhat.com Stable-dep-of: 84ad0af0bccd ("net/sched: qdisc_destroy() old ingress and clsact Qdiscs before grafting") Signed-off-by: Sasha Levin sashal@kernel.org --- net/sched/sch_api.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index 3907483dae624..bd9f523b169a3 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -1076,12 +1076,12 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
if (parent == NULL) { unsigned int i, num_q, ingress; + struct netdev_queue *dev_queue;
ingress = 0; num_q = dev->num_tx_queues; if ((q && q->flags & TCQ_F_INGRESS) || (new && new->flags & TCQ_F_INGRESS)) { - num_q = 1; ingress = 1; if (!dev_ingress_queue(dev)) { NL_SET_ERR_MSG(extack, "Device does not have an ingress queue"); @@ -1097,18 +1097,18 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent, if (new && new->ops->attach && !ingress) goto skip;
- for (i = 0; i < num_q; i++) { - struct netdev_queue *dev_queue = dev_ingress_queue(dev); - - if (!ingress) + if (!ingress) { + for (i = 0; i < num_q; i++) { dev_queue = netdev_get_tx_queue(dev, i); + old = dev_graft_qdisc(dev_queue, new);
- old = dev_graft_qdisc(dev_queue, new); - if (new && i > 0) - qdisc_refcount_inc(new); - - if (!ingress) + if (new && i > 0) + qdisc_refcount_inc(new); qdisc_put(old); + } + } else { + dev_queue = dev_ingress_queue(dev); + old = dev_graft_qdisc(dev_queue, new); }
skip: