iwlwifi: don't stop queue in the middle of fragmented packet

This patch avoids stopping queue in the middle of the fragmented packet.
It is required that there will be ~10 (max packet/min fragment) or 16
(4 bits of frag number) free tfds all the time.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index f72cd0bf6aa3..0182e4da8e35 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -962,16 +962,16 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
         if (ret)
                 return ret;
 
-        if ((iwl_queue_space(q) < q->high_mark)
-            && priv->mac80211_registered) {
+        if ((iwl_queue_space(q) < q->high_mark) && priv->mac80211_registered) {
                 if (wait_write_ptr) {
                         spin_lock_irqsave(&priv->lock, flags);
                         txq->need_update = 1;
                         iwl_txq_update_write_ptr(priv, txq);
                         spin_unlock_irqrestore(&priv->lock, flags);
+                } else {
+                        ieee80211_stop_queue(priv->hw,
+                                             skb_get_queue_mapping(skb));
                 }
-
-                ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb));
         }
 
         return 0;