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ath9k: fix queue depth accounting in ath_tx_txqaddbuf

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ath_tx_txqaddbuf assumes that all the linked buffers in the queue passed
to it are part of the same A-MPDU or MPDU. The CAB queue rework violates
this assumption, which can cause the internal queue depth to go
negative.
Fix this by increasing the counter for all slots of [bf, bf->bf_lastbf]

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2013-06-20 15:11:31 +02:00 committed by John W. Linville
parent 68185a4b37
commit f56e121df3
1 changed files with 7 additions and 3 deletions
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10
drivers/net/wireless/ath/ath9k/xmit.c
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@ -1778,9 +1778,13 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
}
if (!internal) {
txq->axq_depth++;
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth++;
while (bf) {
txq->axq_depth++;
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth++;
bf = bf->bf_lastbf->bf_next;
}
}
}