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David BauerandFelix Fietkau
2eb5d1e3cf
mt76_txq_send_burst does check if the number of non-AQL frames exceeds the maximum. In this case the queue is returned to ieee80211_return_txq when iterating over the scheduled TXQs in mt76_txq_schedule_list. This has the effect of inserting said TXQ at the head of the list. This means the loop will get the same TXQ again, which will terminate the scheduling round. TXQs following in the list thus never get scheduled for transmission. This can manifest in high latency low throughput or broken connections for said STAs. Check if the non-AQL packet count exceeds the limit and not return the TXQ in this case. Schedule all TXQs for the STA in case the non-AQL limit can be satisfied again. Signed-off-by: David Bauer <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Felix Fietkau <[email protected]>