From 96a4688edb5e638a9f81c787c031bbdbfa291527 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 11 May 2015 14:01:36 +0200
Subject: mac80211: check fast-xmit if IBSS STA QoS changed

When an IBSS station gets QoS enabled after having been added,
check fast-xmit to make sure the QoS header gets added to the
cache properly and frames can go out with QoS and higher rates.

Reported-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index bfef1b2..21716af 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1031,8 +1031,11 @@ static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	if (sta && elems->wmm_info && local->hw.queues >= IEEE80211_NUM_ACS)
+	if (sta && !sta->sta.wme &&
+	    elems->wmm_info && local->hw.queues >= IEEE80211_NUM_ACS) {
 		sta->sta.wme = true;
+		ieee80211_check_fast_xmit(sta);
+	}
 
 	if (sta && elems->ht_operation && elems->ht_cap_elem &&
 	    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
-- 
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