1 From: Felix Fietkau <nbd@openwrt.org>
2 Date: Sat, 15 Nov 2014 22:13:38 +0100
3 Subject: [PATCH] mac80211: minstrel_ht: add a small optimization to
6 Check the queue mapping earlier, skb->queue_mapping is more likely than
7 skb->data to still be in d-cache.
9 Signed-off-by: Felix Fietkau <nbd@openwrt.org>
12 --- a/net/mac80211/rc80211_minstrel_ht.c
13 +++ b/net/mac80211/rc80211_minstrel_ht.c
14 @@ -690,6 +690,9 @@ minstrel_aggr_check(struct ieee80211_sta
15 struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
18 + if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
21 if (unlikely(!ieee80211_is_data_qos(hdr->frame_control)))
24 @@ -700,9 +703,6 @@ minstrel_aggr_check(struct ieee80211_sta
25 if (likely(sta->ampdu_mlme.tid_tx[tid]))
28 - if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
31 ieee80211_start_tx_ba_session(pubsta, tid, 5000);