From: Ben Greear <greearb@candelatech.com>
Date: Mon, 10 Jan 2011 07:11:47 +0000 (-0800)
Subject: ath9k: Ensure xmit makes progress.
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=082f65368991f6bb7499c379754505cb674708b1;p=openwrt%2Fstaging%2Fblogic.git

ath9k: Ensure xmit makes progress.

If the txq->axq_q is empty, the code was breaking out
of the tx_processq logic without checking to see if it should
transmit other queued AMPDU frames (txq->axq_acq).

This patches ensures ath_txq_schedule is called.

This needs review.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index aa67d641f140..f6de2271b9d4 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2005,6 +2005,8 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
 		spin_lock_bh(&txq->axq_lock);
 		if (list_empty(&txq->axq_q)) {
 			txq->axq_link = NULL;
+			if (sc->sc_flags & SC_OP_TXAGGR)
+				ath_txq_schedule(sc, txq);
 			spin_unlock_bh(&txq->axq_lock);
 			break;
 		}