wl1271: Enable beacon filtering with the stack

Enable beacon filtering with the mac80211 stack.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_event.c b/drivers/net/wireless/wl12xx/wl1271_event.c
index 87055f7..f329276 100644
--- a/drivers/net/wireless/wl12xx/wl1271_event.c
+++ b/drivers/net/wireless/wl12xx/wl1271_event.c
@@ -70,14 +70,16 @@
 			return ret;
 	}
 
-	if (vector & BSS_LOSE_EVENT_ID) {
+	/*
+	 * The BSS_LOSE_EVENT_ID is only needed while psm (and hence beacon
+	 * filtering) is enabled. Without PSM, the stack will receive all
+	 * beacons and can detect beacon loss by itself.
+	 */
+	if (vector & BSS_LOSE_EVENT_ID && wl->psm) {
 		wl1271_debug(DEBUG_EVENT, "BSS_LOSE_EVENT");
 
-		if (wl->psm_requested && wl->psm) {
-			ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE);
-			if (ret < 0)
-				return ret;
-		}
+		/* indicate to the stack, that beacons have been lost */
+		ieee80211_beacon_loss(wl->vif);
 	}
 
 	return 0;