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* [PATCH 2/2] ath9k: Call ieee80211_wake_queue() during ATH_WIPHY_SCAN state also
@ 2010-06-30 10:15 Vasanthakumar Thiagarajan
  0 siblings, 0 replies; only message in thread
From: Vasanthakumar Thiagarajan @ 2010-06-30 10:15 UTC (permalink / raw)
  To: linville; +Cc: linux-wireless

Along with "mac80211: Dont allow to wake up netif tx queues while on off channel"
this patch fixes a tx hang issue which shows up when starting a background scanning.
The cause for hang is a missed call to ieee80211_wake_queue() after the tx queue
was stopped due to tx buffer shortage.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
---
 drivers/net/wireless/ath/ath9k/virtual.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/virtual.c b/drivers/net/wireless/ath/ath9k/virtual.c
index 89423ca..2c2f193 100644
--- a/drivers/net/wireless/ath/ath9k/virtual.c
+++ b/drivers/net/wireless/ath/ath9k/virtual.c
@@ -703,7 +703,8 @@ void ath_mac80211_start_queue(struct ath_softc *sc, u16 skb_queue)
 	spin_lock_bh(&sc->wiphy_lock);
 
 	/* Start the primary wiphy */
-	if (sc->pri_wiphy->state == ATH_WIPHY_ACTIVE) {
+	if ((sc->pri_wiphy->state == ATH_WIPHY_ACTIVE) ||
+	    (sc->pri_wiphy->state == ATH_WIPHY_SCAN)) {
 		ieee80211_wake_queue(hw, skb_queue);
 		goto unlock;
 	}
-- 
1.7.0.4


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2010-06-30 10:15 [PATCH 2/2] ath9k: Call ieee80211_wake_queue() during ATH_WIPHY_SCAN state also Vasanthakumar Thiagarajan

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