1 files changed, 20 insertions, 6 deletions

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 35b515f..dd30452 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -399,6 +399,7 @@ static struct ath_buf* ath_clone_txbuf(struct ath_softc *sc, struct ath_buf *bf)
 	tbf->bf_buf_addr = bf->bf_buf_addr;
 	memcpy(tbf->bf_desc, bf->bf_desc, sc->sc_ah->caps.tx_desc_len);
 	tbf->bf_state = bf->bf_state;
+	tbf->bf_state.stale = false;
 
 	return tbf;
 }
@@ -1389,11 +1390,15 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
 		      u16 tid, u16 *ssn)
 {
 	struct ath_atx_tid *txtid;
+	struct ath_txq *txq;
 	struct ath_node *an;
 	u8 density;
 
 	an = (struct ath_node *)sta->drv_priv;
 	txtid = ATH_AN_2_TID(an, tid);
+	txq = txtid->ac->txq;
+
+	ath_txq_lock(sc, txq);
 
 	/* update ampdu factor/density, they may have changed. This may happen
 	 * in HT IBSS when a beacon with HT-info is received after the station
@@ -1417,6 +1422,8 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
 	memset(txtid->tx_buf, 0, sizeof(txtid->tx_buf));
 	txtid->baw_head = txtid->baw_tail = 0;
 
+	ath_txq_unlock_complete(sc, txq);
+
 	return 0;
 }
 
@@ -1555,8 +1562,10 @@ void ath9k_release_buffered_frames(struct ieee80211_hw *hw,
 			__skb_unlink(bf->bf_mpdu, tid_q);
 			list_add_tail(&bf->list, &bf_q);
 			ath_set_rates(tid->an->vif, tid->an->sta, bf);
-			ath_tx_addto_baw(sc, tid, bf);
-			bf->bf_state.bf_type &= ~BUF_AGGR;
+			if (bf_isampdu(bf)) {
+				ath_tx_addto_baw(sc, tid, bf);
+				bf->bf_state.bf_type &= ~BUF_AGGR;
+			}
 			if (bf_tail)
 				bf_tail->bf_next = bf;
 
@@ -1950,7 +1959,9 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
 			if (bf_is_ampdu_not_probing(bf))
 				txq->axq_ampdu_depth++;
 
-			bf = bf->bf_lastbf->bf_next;
+			bf_last = bf->bf_lastbf;
+			bf = bf_last->bf_next;
+			bf_last->bf_next = NULL;
 		}
 	}
 }
@@ -1958,15 +1969,18 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
 static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
 			       struct ath_atx_tid *tid, struct sk_buff *skb)
 {
+	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ath_frame_info *fi = get_frame_info(skb);
 	struct list_head bf_head;
-	struct ath_buf *bf;
-
-	bf = fi->bf;
+	struct ath_buf *bf = fi->bf;
 
 	INIT_LIST_HEAD(&bf_head);
 	list_add_tail(&bf->list, &bf_head);
 	bf->bf_state.bf_type = 0;
+	if (tid && (tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
+		bf->bf_state.bf_type = BUF_AMPDU;
+		ath_tx_addto_baw(sc, tid, bf);
+	}
 
 	bf->bf_next = NULL;
 	bf->bf_lastbf = bf;