* [PATCH 3.12] ath9k: do not link bf_next across multiple A-MPDUs
@ 2013-09-14 15:02 Felix Fietkau
0 siblings, 0 replies; only message in thread
From: Felix Fietkau @ 2013-09-14 15:02 UTC (permalink / raw)
To: linux-wireless; +Cc: linville
This might trip up tx completion processing, although the condition that
triggers this should not (yet) occur in practice.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---
drivers/net/wireless/ath/ath9k/xmit.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index a749e0f..5849960 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1951,7 +1951,9 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth++;
- bf = bf->bf_lastbf->bf_next;
+ bf_last = bf->bf_lastbf;
+ bf = bf_last->bf_next;
+ bf_last->bf_next = NULL;
}
}
}
--
1.8.0.2
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