---

yaml
---
r: 266284
b: refs/heads/master
c: 7cc44ed
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 143bb15de5ea904195d8e52cca7e2edbf5b31159
+refs/heads/master: 7cc44ed48d0ec0937c1f098642540b6c9ca38de5

trunk/net/mac80211/mlme.c

@@ -160,7 +160,8 @@ static int ecw2cw(int ecw)
  */
 static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 			       struct ieee80211_ht_info *hti,
-			       const u8 *bssid, u16 ap_ht_cap_flags)
+			       const u8 *bssid, u16 ap_ht_cap_flags,
+			       bool beacon_htcap_ie)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
@@ -232,6 +233,21 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 		WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type));
 	}
 
+	if (beacon_htcap_ie && (prev_chantype != channel_type)) {
+		/*
+		 * Whenever the AP announces the HT mode change that can be
+		 * 40MHz intolerant or etc., it would be safer to stop tx
+		 * queues before doing hw config to avoid buffer overflow.
+		 */
+		ieee80211_stop_queues_by_reason(&sdata->local->hw,
+				IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
+
+		/* flush out all packets */
+		synchronize_net();
+
+		drv_flush(local, false);
+	}
+
 	/* channel_type change automatically detected */
 	ieee80211_hw_config(local, 0);
 
@@ -243,6 +259,10 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 						 IEEE80211_RC_HT_CHANGED,
 						 channel_type);
 		rcu_read_unlock();
+
+		if (beacon_htcap_ie)
+			ieee80211_wake_queues_by_reason(&sdata->local->hw,
+				IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
 	}
 
 	ht_opmode = le16_to_cpu(hti->operation_mode);
@@ -1588,7 +1608,8 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
 	    (sdata->local->hw.queues >= 4) &&
 	    !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
 		changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
-					       cbss->bssid, ap_ht_cap_flags);
+					       cbss->bssid, ap_ht_cap_flags,
+					       false);
 
 	/* set AID and assoc capability,
 	 * ieee80211_set_associated() will tell the driver */
@@ -1921,24 +1942,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
 		rcu_read_unlock();
 
-		/*
-		 * Whenever the AP announces the HT mode change that can be
-		 * 40MHz intolerant or etc., it would be safer to stop tx
-		 * queues before doing hw config to avoid buffer overflow.
-		 */
-		ieee80211_stop_queues_by_reason(&sdata->local->hw,
-				IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
-
-		/* flush out all packets */
-		synchronize_net();
-
-		drv_flush(local, false);
-
 		changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
-					       bssid, ap_ht_cap_flags);
-
-		ieee80211_wake_queues_by_reason(&sdata->local->hw,
-				IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
+					       bssid, ap_ht_cap_flags, true);
 	}
 
 	/* Note: country IE parsing is done for us by cfg80211 */