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Date: Fri, 19 Apr 2019 17:00:52 -0700 From: Andre Guedes <andre.guedes@...el.com> To: netdev@...r.kernel.org Cc: vinicius.gomes@...el.com Subject: [PATCH 5/5] net: sched: taprio: Fix taprio_dequeue() In case we don't have 'guard' or 'budget' to transmit the skb, we should continue traversing the qdisc list since the remaining guard/budget might be enough to transmit a skb from other children qdiscs. Fixes: 5a781ccbd19e (“tc: Add support for configuring the taprio scheduler”) Signed-off-by: Andre Guedes <andre.guedes@...el.com> --- net/sched/sch_taprio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c index 110436d11f86..9f361f2b7510 100644 --- a/net/sched/sch_taprio.c +++ b/net/sched/sch_taprio.c @@ -180,12 +180,12 @@ static struct sk_buff *taprio_dequeue(struct Qdisc *sch) */ if (gate_mask != TAPRIO_ALL_GATES_OPEN && ktime_after(guard, entry->close_time)) - return NULL; + continue; /* ... and no budget. */ if (gate_mask != TAPRIO_ALL_GATES_OPEN && atomic_sub_return(len, &entry->budget) < 0) - return NULL; + continue; skb = child->ops->dequeue(child); if (unlikely(!skb)) -- 2.21.0
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