wlcore: don't stop tx queue via watermark if already stopped

If a Tx queue is currently stopped because of our Tx watermark flow
control, don't stop it again. This causes a warning to appear.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 0cc9a02..7abb02a 100644 (file)
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -1211,7 +1211,9 @@ static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
         * The workqueue is slow to process the tx_queue and we need stop
         * the queue here, otherwise the queue will get too long.
         */
-       if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
+       if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK &&
+           !wlcore_is_queue_stopped_by_reason(wl, q,
+                                       WLCORE_QUEUE_STOP_REASON_WATERMARK)) {
                wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
                wlcore_stop_queue_locked(wl, q,
                                         WLCORE_QUEUE_STOP_REASON_WATERMARK);