mac80211: End the MPSP even if EOSP frame was not acked

If QoS frame with EOSP (end of service period) subfield=1 sent by local
peer was not acked by remote peer, local peer did not end the MPSP. This
prevents local peer from going to DOZE state. And if the remote peer
goes away without closing connection, local peer continues AWAKE state
and wastes battery.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/status.c

@@ -771,6 +771,13 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 			clear_sta_flag(sta, WLAN_STA_SP);
 
 		acked = !!(info->flags & IEEE80211_TX_STAT_ACK);
+
+		/* mesh Peer Service Period support */
+		if (ieee80211_vif_is_mesh(&sta->sdata->vif) &&
+		    ieee80211_is_data_qos(fc))
+			ieee80211_mpsp_trigger_process(
+				ieee80211_get_qos_ctl(hdr), sta, true, acked);
+
 		if (!acked && test_sta_flag(sta, WLAN_STA_PS_STA)) {
 			/*
 			 * The STA is in power save mode, so assume
@@ -781,13 +788,6 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 			return;
 		}
 
-		/* mesh Peer Service Period support */
-		if (ieee80211_vif_is_mesh(&sta->sdata->vif) &&
-		    ieee80211_is_data_qos(fc))
-			ieee80211_mpsp_trigger_process(
-					ieee80211_get_qos_ctl(hdr),
-					sta, true, acked);
-
 		if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL) &&
 		    (ieee80211_is_data(hdr->frame_control)) &&
 		    (rates_idx != -1))