8 files changed, 75 insertions, 38 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 639ba7d18ea4..6988e1d081f2 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -965,7 +965,7 @@ static void ar9003_hw_do_manual_peak_cal(struct ath_hw *ah,
 {
         int i;
 
-        if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah))
+        if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah) && !AR_SREV_9485(ah))
                 return;
 
         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
diff --git a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
index 712f415b8c08..88ff1d7b53ab 100644
--- a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
@@ -1020,7 +1020,7 @@ static const u32 ar9485_1_1_baseband_postamble[][5] = {
         {0x0000a284, 0x00000000, 0x00000000, 0x000002a0, 0x000002a0},
         {0x0000a288, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
         {0x0000a28c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-        {0x0000a2c4, 0x00158d18, 0x00158d18, 0x00158d18, 0x00158d18},
+        {0x0000a2c4, 0x00158d18, 0x00158d18, 0x00058d18, 0x00058d18},
         {0x0000a2d0, 0x00071981, 0x00071981, 0x00071982, 0x00071982},
         {0x0000a2d8, 0xf999a83a, 0xf999a83a, 0xf999a83a, 0xf999a83a},
         {0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8a1888d02070..366002f266f8 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -254,6 +254,7 @@ struct ath_atx_tid {
         int sched;
         int paused;
         u8 state;
+        bool stop_cb;
 };
 
 struct ath_node {
@@ -351,7 +352,8 @@ void ath_tx_tasklet(struct ath_softc *sc);
 void ath_tx_edma_tasklet(struct ath_softc *sc);
 int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
                       u16 tid, u16 *ssn);
-void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
+bool ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid,
+                      bool flush);
 void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
 
 void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index e6307b86363a..b37eb8d38811 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -2008,6 +2008,14 @@ void ath9k_get_et_stats(struct ieee80211_hw *hw,
         WARN_ON(i != ATH9K_SSTATS_LEN);
 }
 
+void ath9k_deinit_debug(struct ath_softc *sc)
+{
+        if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
+                relay_close(sc->rfs_chan_spec_scan);
+                sc->rfs_chan_spec_scan = NULL;
+        }
+}
+
 int ath9k_init_debug(struct ath_hw *ah)
 {
         struct ath_common *common = ath9k_hw_common(ah);
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 794a7ec83a24..9d49aab8b989 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -304,6 +304,7 @@ struct ath9k_debug {
 };
 
 int ath9k_init_debug(struct ath_hw *ah);
+void ath9k_deinit_debug(struct ath_softc *sc);
 
 void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
@@ -339,6 +340,10 @@ static inline int ath9k_init_debug(struct ath_hw *ah)
         return 0;
 }
 
+static inline void ath9k_deinit_debug(struct ath_softc *sc)
+{
+}
+
 static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
                                             enum ath9k_int status)
 {
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 0237b2868961..aba415103f94 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -906,7 +906,7 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc,
         if (!ath_is_world_regd(reg)) {
                 error = regulatory_hint(hw->wiphy, reg->alpha2);
                 if (error)
-                        goto unregister;
+                        goto debug_cleanup;
         }
 
         ath_init_leds(sc);
@@ -914,6 +914,8 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc,
 
         return 0;
 
+debug_cleanup:
+        ath9k_deinit_debug(sc);
 unregister:
         ieee80211_unregister_hw(hw);
 rx_cleanup:
@@ -942,11 +944,6 @@ static void ath9k_deinit_softc(struct ath_softc *sc)
                 sc->dfs_detector->exit(sc->dfs_detector);
 
         ath9k_eeprom_release(sc);
-
-        if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) {
-                relay_close(sc->rfs_chan_spec_scan);
-                sc->rfs_chan_spec_scan = NULL;
-        }
 }
 
 void ath9k_deinit_device(struct ath_softc *sc)
@@ -960,6 +957,7 @@ void ath9k_deinit_device(struct ath_softc *sc)
 
         ath9k_ps_restore(sc);
 
+        ath9k_deinit_debug(sc);
         ieee80211_unregister_hw(hw);
         ath_rx_cleanup(sc);
         ath9k_deinit_softc(sc);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index a18414b5948b..2382d1262e7f 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1687,6 +1687,7 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
                               u16 tid, u16 *ssn, u8 buf_size)
 {
         struct ath_softc *sc = hw->priv;
+        bool flush = false;
         int ret = 0;
 
         local_bh_disable();
@@ -1703,12 +1704,13 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw,
                         ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
                 ath9k_ps_restore(sc);
                 break;
-        case IEEE80211_AMPDU_TX_STOP_CONT:
         case IEEE80211_AMPDU_TX_STOP_FLUSH:
         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+                flush = true;
+        case IEEE80211_AMPDU_TX_STOP_CONT:
                 ath9k_ps_wakeup(sc);
-                ath_tx_aggr_stop(sc, sta, tid);
-                ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+                if (ath_tx_aggr_stop(sc, sta, tid, flush))
+                        ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
                 ath9k_ps_restore(sc);
                 break;
         case IEEE80211_AMPDU_TX_OPERATIONAL:
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index eab0fcb7ded6..14bb3354ea64 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -164,7 +164,20 @@ static void ath_set_rates(struct ieee80211_vif *vif, struct ieee80211_sta *sta,
                                ARRAY_SIZE(bf->rates));
 }
 
-static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+static void ath_tx_clear_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+{
+        tid->state &= ~AGGR_ADDBA_COMPLETE;
+        tid->state &= ~AGGR_CLEANUP;
+        if (!tid->stop_cb)
+                return;
+
+        ieee80211_start_tx_ba_cb_irqsafe(tid->an->vif, tid->an->sta->addr,
+                                         tid->tidno);
+        tid->stop_cb = false;
+}
+
+static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid,
+                             bool flush_packets)
 {
         struct ath_txq *txq = tid->ac->txq;
         struct sk_buff *skb;
@@ -181,16 +194,15 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
         while ((skb = __skb_dequeue(&tid->buf_q))) {
                 fi = get_frame_info(skb);
                 bf = fi->bf;
+                if (!bf && !flush_packets)
+                        bf = ath_tx_setup_buffer(sc, txq, tid, skb);
 
                 if (!bf) {
-                        bf = ath_tx_setup_buffer(sc, txq, tid, skb);
-                        if (!bf) {
-                                ieee80211_free_txskb(sc->hw, skb);
-                                continue;
-                        }
+                        ieee80211_free_txskb(sc->hw, skb);
+                        continue;
                 }
 
-                if (fi->retries) {
+                if (fi->retries || flush_packets) {
                         list_add_tail(&bf->list, &bf_head);
                         ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
                         ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
@@ -201,12 +213,10 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
                 }
         }
 
-        if (tid->baw_head == tid->baw_tail) {
-                tid->state &= ~AGGR_ADDBA_COMPLETE;
-                tid->state &= ~AGGR_CLEANUP;
-        }
+        if (tid->baw_head == tid->baw_tail)
+                ath_tx_clear_tid(sc, tid);
 
-        if (sendbar) {
+        if (sendbar && !flush_packets) {
                 ath_txq_unlock(sc, txq);
                 ath_send_bar(tid, tid->seq_start);
                 ath_txq_lock(sc, txq);
@@ -277,9 +287,7 @@ static void ath_tid_drain(struct ath_softc *sc, struct ath_txq *txq,
 
                 list_add_tail(&bf->list, &bf_head);
 
-                if (fi->retries)
-                        ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
-
+                ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
                 ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
         }
 
@@ -602,7 +610,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
         }
 
         if (tid->state & AGGR_CLEANUP)
-                ath_tx_flush_tid(sc, tid);
+                ath_tx_flush_tid(sc, tid, false);
 
         rcu_read_unlock();
 
@@ -620,6 +628,7 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
                                   struct ath_tx_status *ts, struct ath_buf *bf,
                                   struct list_head *bf_head)
 {
+        struct ieee80211_tx_info *info;
         bool txok, flush;
 
         txok = !(ts->ts_status & ATH9K_TXERR_MASK);
@@ -631,8 +640,12 @@ static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
                 txq->axq_ampdu_depth--;
 
         if (!bf_isampdu(bf)) {
-                if (!flush)
+                if (!flush) {
+                        info = IEEE80211_SKB_CB(bf->bf_mpdu);
+                        memcpy(info->control.rates, bf->rates,
+                               sizeof(info->control.rates));
                         ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
+                }
                 ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok);
         } else
                 ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
@@ -676,7 +689,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
 
         skb = bf->bf_mpdu;
         tx_info = IEEE80211_SKB_CB(skb);
-        rates = tx_info->control.rates;
+        rates = bf->rates;
 
         /*
          * Find the lowest frame length among the rate series that will have a
@@ -1256,18 +1269,23 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
         return 0;
 }
 
-void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
+bool ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid,
+                      bool flush)
 {
         struct ath_node *an = (struct ath_node *)sta->drv_priv;
         struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
         struct ath_txq *txq = txtid->ac->txq;
+        bool ret = !flush;
+
+        if (flush)
+                txtid->stop_cb = false;
 
         if (txtid->state & AGGR_CLEANUP)
-                return;
+                return false;
 
         if (!(txtid->state & AGGR_ADDBA_COMPLETE)) {
                 txtid->state &= ~AGGR_ADDBA_PROGRESS;
-                return;
+                return ret;
         }
 
         ath_txq_lock(sc, txq);
@@ -1279,13 +1297,17 @@ void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
          * TID can only be reused after all in-progress subframes have been
          * completed.
          */
-        if (txtid->baw_head != txtid->baw_tail)
+        if (txtid->baw_head != txtid->baw_tail) {
                 txtid->state |= AGGR_CLEANUP;
-        else
+                ret = false;
+                txtid->stop_cb = !flush;
+        } else {
                 txtid->state &= ~AGGR_ADDBA_COMPLETE;
+        }
 
-        ath_tx_flush_tid(sc, txtid);
+        ath_tx_flush_tid(sc, txtid, flush);
         ath_txq_unlock_complete(sc, txq);
+        return ret;
 }
 
 void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
@@ -2415,6 +2437,7 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
                 tid->ac = &an->ac[acno];
                 tid->state &= ~AGGR_ADDBA_COMPLETE;
                 tid->state &= ~AGGR_ADDBA_PROGRESS;
+                tid->stop_cb = false;
         }
 
         for (acno = 0, ac = &an->ac[acno];
@@ -2451,8 +2474,7 @@ void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an)
                 }
 
                 ath_tid_drain(sc, txq, tid);
-                tid->state &= ~AGGR_ADDBA_COMPLETE;
-                tid->state &= ~AGGR_CLEANUP;
+                ath_tx_clear_tid(sc, tid);
 
                 ath_txq_unlock(sc, txq);
         }