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: 5a781ccbd1
(“tc: Add support for configuring the taprio scheduler”)
Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.2
parent
2684d1b75f
commit
6e734c82be
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@ -188,12 +188,12 @@ static struct sk_buff *taprio_dequeue(struct Qdisc *sch)
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*/
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*/
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if (gate_mask != TAPRIO_ALL_GATES_OPEN &&
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if (gate_mask != TAPRIO_ALL_GATES_OPEN &&
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ktime_after(guard, entry->close_time))
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ktime_after(guard, entry->close_time))
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return NULL;
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continue;
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/* ... and no budget. */
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/* ... and no budget. */
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if (gate_mask != TAPRIO_ALL_GATES_OPEN &&
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if (gate_mask != TAPRIO_ALL_GATES_OPEN &&
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atomic_sub_return(len, &entry->budget) < 0)
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atomic_sub_return(len, &entry->budget) < 0)
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return NULL;
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continue;
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skb = child->ops->dequeue(child);
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skb = child->ops->dequeue(child);
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if (unlikely(!skb))
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if (unlikely(!skb))
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