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ath9k: Fix TX queue stuck issue.

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commit 86271e460a introduced a
regression that caused mac80211 queues in stopped state.

ath_drain_all_txq is called in driver flush which would reset
the stopped flag and the mac80211 queues were never started
after that. iperf traffic is completely stalled due to this issue.

Restart the mac80211 queues in driver flush only if the txqs were
drained.

Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Senthil Balasubramanian 2011-03-23 23:07:22 +05:30 committed by John W. Linville
parent 19b9675069
commit d78f4b3e2c
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/ath/ath9k/main.c
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@ -2160,6 +2160,8 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop)
if (!ath_drain_all_txq(sc, false))
ath_reset(sc, false);
ieee80211_wake_queues(hw);
out:
ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
mutex_unlock(&sc->mutex);