mac80211: lazily stop queues in add_pending

When adding pending SKBs there's no need to
stop all queues, we only need to stop those
that we're adding frames to. Implement that
by lazily stopping a queue as we add an SKB.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ef725cabb099..471a831066dd 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -385,10 +385,6 @@ void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
         int queue, i;
 
         spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
-        for (i = 0; i < hw->queues; i++)
-                __ieee80211_stop_queue(hw, i,
-                        IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
-
         while ((skb = skb_dequeue(skbs))) {
                 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
@@ -398,6 +394,10 @@ void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
                 }
 
                 queue = skb_get_queue_mapping(skb);
+
+                __ieee80211_stop_queue(hw, queue,
+                                IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+
                 __skb_queue_tail(&local->pending[queue], skb);
         }