From: Johannes Berg <johannes.berg@xxxxxxxxx>
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@xxxxxxxxx>
---
net/mac80211/util.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/net/mac80211/util.c 2012-03-28 09:34:49.000000000 +0200
+++ b/net/mac80211/util.c 2012-03-28 09:36:48.000000000 +0200
@@ -385,10 +385,6 @@ void ieee80211_add_pending_skbs_fn(struc
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(struc
}
queue = skb_get_queue_mapping(skb);
+
+ __ieee80211_stop_queue(hw, queue,
+ IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
+
__skb_queue_tail(&local->pending[queue], skb);
}
--
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