ath9k: Implement dev_tx_frames_pending callback.

This function returns true if there is atleast one frame
in any one of the tx queues.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index ba1c9a6..93b9fa2 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -2201,6 +2201,21 @@ out:
        ath9k_ps_restore(sc);
 }
 
+static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw)
+{
+       struct ath_softc *sc = hw->priv;
+       int i;
+
+       for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
+               if (!ATH_TXQ_SETUP(sc, i))
+                       continue;
+
+               if (ath9k_has_pending_frames(sc, &sc->tx.txq[i]))
+                       return true;
+       }
+       return false;
+}
+
 struct ieee80211_ops ath9k_ops = {
        .tx                 = ath9k_tx,
        .start              = ath9k_start,
@@ -2223,4 +2238,5 @@ struct ieee80211_ops ath9k_ops = {
        .rfkill_poll        = ath9k_rfkill_poll_state,
        .set_coverage_class = ath9k_set_coverage_class,
        .flush              = ath9k_flush,
+       .tx_frames_pending  = ath9k_tx_frames_pending,
 };