Commit 9af73cf7 authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
Browse files

ath9k: avoid sending a-mpdu packets to sleeping stations



If the driver gets a tx status report for an A-MPDU sent to a station that
just went to sleep, that leaves a race condition where this tx status can
trigger another A-MPDU transmission.
To fix this, check if the station is sleeping before queueing the tid.
Signed-off-by: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 9946ecfb
......@@ -551,7 +551,8 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
if (clear_filter)
tid->ac->clear_ps_filter = true;
list_splice(&bf_pending, &tid->buf_q);
ath_tx_queue_tid(txq, tid);
if (!an->sleeping)
ath_tx_queue_tid(txq, tid);
spin_unlock_bh(&txq->axq_lock);
}
......@@ -1413,7 +1414,8 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
*/
TX_STAT_INC(txctl->txq->axq_qnum, a_queued_sw);
list_add_tail(&bf->list, &tid->buf_q);
ath_tx_queue_tid(txctl->txq, tid);
if (!txctl->an || !txctl->an->sleeping)
ath_tx_queue_tid(txctl->txq, tid);
return;
}
......
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