diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 98613c8..cd0f265 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1050,7 +1050,7 @@
 	 * exchange. Also set EOSP to indicate this packet
 	 * ends the poll/service period.
 	 */
-	info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE |
+	info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER |
 		       IEEE80211_TX_STATUS_EOSP |
 		       IEEE80211_TX_CTL_REQ_TX_STATUS;
 
@@ -1177,7 +1177,7 @@
 			 * STA may still remain is PS mode after this frame
 			 * exchange.
 			 */
-			info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE;
+			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
 
 			/*
 			 * Use MoreData flag to indicate whether there are
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 7c021f2..570737d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -448,18 +448,23 @@
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 	struct ieee80211_local *local = tx->local;
 
-	if (unlikely(!sta ||
-		     ieee80211_is_probe_resp(hdr->frame_control) ||
-		     ieee80211_is_auth(hdr->frame_control) ||
-		     ieee80211_is_assoc_resp(hdr->frame_control) ||
-		     ieee80211_is_reassoc_resp(hdr->frame_control)))
+	if (unlikely(!sta))
 		return TX_CONTINUE;
 
 	if (unlikely((test_sta_flag(sta, WLAN_STA_PS_STA) ||
 		      test_sta_flag(sta, WLAN_STA_PS_DRIVER)) &&
-		     !(info->flags & IEEE80211_TX_CTL_POLL_RESPONSE))) {
+		     !(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER))) {
 		int ac = skb_get_queue_mapping(tx->skb);
 
+		/* only deauth, disassoc and action are bufferable MMPDUs */
+		if (ieee80211_is_mgmt(hdr->frame_control) &&
+		    !ieee80211_is_deauth(hdr->frame_control) &&
+		    !ieee80211_is_disassoc(hdr->frame_control) &&
+		    !ieee80211_is_action(hdr->frame_control)) {
+			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
+			return TX_CONTINUE;
+		}
+
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 		printk(KERN_DEBUG "STA %pM aid %d: PS buffer for AC %d\n",
 		       sta->sta.addr, sta->sta.aid, ac);