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 aa67d64..f6de227 100644 (file)
--- 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;
                }