ath9k: fix an invalid pointer access in the tx path
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index 70c823a..9044396 100644 (file)
---- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-@@ -326,7 +326,6 @@ static bool ar9003_hw_get_isr(struct ath
- static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
-                                struct ath_tx_status *ts)
- {
--      struct ar9003_txc *txc = (struct ar9003_txc *) ds;
-       struct ar9003_txs *ads;
-       u32 status;
-@@ -336,11 +335,7 @@ static int ar9003_hw_proc_txdesc(struct 
-       if ((status & AR_TxDone) == 0)
-               return -EINPROGRESS;
--      ts->qid = MS(ads->ds_info, AR_TxQcuNum);
--      if (!txc || (MS(txc->info, AR_TxQcuNum) == ts->qid))
--              ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
--      else
--              return -ENOENT;
-+      ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
-       if ((MS(ads->ds_info, AR_DescId) != ATHEROS_VENDOR_ID) ||
-           (MS(ads->ds_info, AR_TxRxDesc) != 1)) {
-@@ -354,6 +349,7 @@ static int ar9003_hw_proc_txdesc(struct 
-       ts->ts_seqnum = MS(status, AR_SeqNum);
-       ts->tid = MS(status, AR_TxTid);
-+      ts->qid = MS(ads->ds_info, AR_TxQcuNum);
-       ts->desc_id = MS(ads->status1, AR_TxDescId);
-       ts->ts_tstamp = ads->status4;
-       ts->ts_status = 0;
-@@ -510,7 +506,11 @@ int ath9k_hw_process_rxdesc_edma(struct 
-                */
-               if (rxsp->status11 & AR_CRCErr)
-                       rxs->rs_status |= ATH9K_RXERR_CRC;
--              else if (rxsp->status11 & AR_PHYErr) {
-+              else if (rxsp->status11 & AR_DecryptCRCErr)
-+                      rxs->rs_status |= ATH9K_RXERR_DECRYPT;
-+              else if (rxsp->status11 & AR_MichaelErr)
-+                      rxs->rs_status |= ATH9K_RXERR_MIC;
-+              if (rxsp->status11 & AR_PHYErr) {
-                       phyerr = MS(rxsp->status11, AR_PHYErrCode);
-                       /*
-                        * If we reach a point here where AR_PostDelimCRCErr is
-@@ -532,11 +532,7 @@ int ath9k_hw_process_rxdesc_edma(struct 
-                               rxs->rs_status |= ATH9K_RXERR_PHY;
-                               rxs->rs_phyerr = phyerr;
-                       }
--
--              } else if (rxsp->status11 & AR_DecryptCRCErr)
--                      rxs->rs_status |= ATH9K_RXERR_DECRYPT;
--              else if (rxsp->status11 & AR_MichaelErr)
--                      rxs->rs_status |= ATH9K_RXERR_MIC;
-+              };
-       }
-       if (rxsp->status11 & AR_KeyMiss)
---- a/drivers/net/wireless/ath/carl9170/tx.c
-+++ b/drivers/net/wireless/ath/carl9170/tx.c
-@@ -1236,6 +1236,7 @@ static bool carl9170_tx_ps_drop(struct a
+--- a/drivers/net/wireless/ath/ath5k/base.c
++++ b/drivers/net/wireless/ath/ath5k/base.c
+@@ -2417,6 +2417,22 @@ ath5k_tx_complete_poll_work(struct work_
+ * Initialization routines *
+ \*************************/
++static const struct ieee80211_iface_limit if_limits[] = {
++      { .max = 2048,  .types = BIT(NL80211_IFTYPE_STATION) },
++      { .max = 4,     .types =
++#ifdef CONFIG_MAC80211_MESH
++                               BIT(NL80211_IFTYPE_MESH_POINT) |
++#endif
++                               BIT(NL80211_IFTYPE_AP) },
++};
++
++static const struct ieee80211_iface_combination if_comb = {
++      .limits = if_limits,
++      .n_limits = ARRAY_SIZE(if_limits),
++      .max_interfaces = 2048,
++      .num_different_channels = 1,
++};
++
+ int __devinit
+ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
  {
-       struct ieee80211_sta *sta;
-       struct carl9170_sta_info *sta_info;
-+      struct ieee80211_tx_info *tx_info;
-       rcu_read_lock();
-       sta = __carl9170_get_tx_sta(ar, skb);
-@@ -1243,12 +1244,13 @@ static bool carl9170_tx_ps_drop(struct a
-               goto out_rcu;
+@@ -2438,6 +2454,9 @@ ath5k_init_ah(struct ath5k_hw *ah, const
+               BIT(NL80211_IFTYPE_ADHOC) |
+               BIT(NL80211_IFTYPE_MESH_POINT);
  
-       sta_info = (void *) sta->drv_priv;
--      if (unlikely(sta_info->sleeping)) {
--              struct ieee80211_tx_info *tx_info;
-+      tx_info = IEEE80211_SKB_CB(skb);
-+      if (unlikely(sta_info->sleeping) &&
-+          !(tx_info->flags & (IEEE80211_TX_CTL_NO_PS_BUFFER |
-+                              IEEE80211_TX_CTL_CLEAR_PS_FILT))) {
-               rcu_read_unlock();
--              tx_info = IEEE80211_SKB_CB(skb);
-               if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
-                       atomic_dec(&ar->tx_ampdu_upload);
++      hw->wiphy->iface_combinations = &if_comb;
++      hw->wiphy->n_iface_combinations = 1;
++
+       /* SW support for IBSS_RSN is provided by mac80211 */
+       hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
  
---- a/drivers/net/wireless/iwlegacy/4965-mac.c
-+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
-@@ -1694,7 +1694,7 @@ il4965_tx_skb(struct il_priv *il, struct
-               sta_priv = (void *)sta->drv_priv;
+--- a/net/mac80211/agg-rx.c
++++ b/net/mac80211/agg-rx.c
+@@ -145,15 +145,20 @@ static void sta_rx_agg_session_timer_exp
+       struct tid_ampdu_rx *tid_rx;
+       unsigned long timeout;
  
-       if (sta_priv && sta_priv->asleep &&
--          (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
-+          (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)) {
-               /*
-                * This sends an asynchronous command to the device,
-                * but we can rely on it being processed before the
---- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
-+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
-@@ -322,7 +322,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv,
-               sta_priv = (void *)info->control.sta->drv_priv;
++      rcu_read_lock();
+       tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[*ptid]);
+-      if (!tid_rx)
++      if (!tid_rx) {
++              rcu_read_unlock();
+               return;
++      }
  
-       if (sta_priv && sta_priv->asleep &&
--          (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
-+          (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)) {
-               /*
-                * This sends an asynchronous command to the device,
-                * but we can rely on it being processed before the
-@@ -331,6 +331,10 @@ int iwlagn_tx_skb(struct iwl_priv *priv,
-                * counter.
-                * For now set the counter to just 1 since we do not
-                * support uAPSD yet.
-+               *
-+               * FIXME: If we get two non-bufferable frames one
-+               * after the other, we might only send out one of
-+               * them because this is racy.
-                */
-               iwl_sta_modify_sleep_tx_count(priv, sta_id, 1);
+       timeout = tid_rx->last_rx + TU_TO_JIFFIES(tid_rx->timeout);
+       if (time_is_after_jiffies(timeout)) {
+               mod_timer(&tid_rx->session_timer, timeout);
++              rcu_read_unlock();
+               return;
        }
---- a/drivers/net/wireless/p54/txrx.c
-+++ b/drivers/net/wireless/p54/txrx.c
-@@ -690,7 +690,7 @@ static void p54_tx_80211_header(struct p
-       if (!(info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
-               *flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
--      if (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)
-+      if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)
-               *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL;
-       if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
---- a/include/net/mac80211.h
-+++ b/include/net/mac80211.h
-@@ -341,9 +341,9 @@ struct ieee80211_bss_conf {
-  *    used to indicate that a frame was already retried due to PS
-  * @IEEE80211_TX_INTFL_DONT_ENCRYPT: completely internal to mac80211,
-  *    used to indicate frame should not be encrypted
-- * @IEEE80211_TX_CTL_POLL_RESPONSE: This frame is a response to a poll
-- *    frame (PS-Poll or uAPSD) and should be sent although the station
-- *    is in powersave mode.
-+ * @IEEE80211_TX_CTL_NO_PS_BUFFER: This frame is a response to a poll
-+ *    frame (PS-Poll or uAPSD) or a non-bufferable MMPDU and must
-+ *    be sent although the station is in powersave mode.
-  * @IEEE80211_TX_CTL_MORE_FRAMES: More frames will be passed to the
-  *    transmit function after the current frame, this can be used
-  *    by drivers to kick the DMA queue only if unset or when the
-@@ -399,7 +399,7 @@ enum mac80211_tx_control_flags {
-       IEEE80211_TX_INTFL_NEED_TXPROCESSING    = BIT(14),
-       IEEE80211_TX_INTFL_RETRIED              = BIT(15),
-       IEEE80211_TX_INTFL_DONT_ENCRYPT         = BIT(16),
--      IEEE80211_TX_CTL_POLL_RESPONSE          = BIT(17),
-+      IEEE80211_TX_CTL_NO_PS_BUFFER           = BIT(17),
-       IEEE80211_TX_CTL_MORE_FRAMES            = BIT(18),
-       IEEE80211_TX_INTFL_RETRANSMISSION       = BIT(19),
-       /* hole at 20, use later */
-@@ -425,7 +425,7 @@ enum mac80211_tx_control_flags {
-       IEEE80211_TX_CTL_SEND_AFTER_DTIM | IEEE80211_TX_CTL_AMPDU |           \
-       IEEE80211_TX_STAT_TX_FILTERED | IEEE80211_TX_STAT_ACK |               \
-       IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_STAT_AMPDU_NO_BACK |           \
--      IEEE80211_TX_CTL_RATE_CTRL_PROBE | IEEE80211_TX_CTL_POLL_RESPONSE |   \
-+      IEEE80211_TX_CTL_RATE_CTRL_PROBE | IEEE80211_TX_CTL_NO_PS_BUFFER |    \
-       IEEE80211_TX_CTL_MORE_FRAMES | IEEE80211_TX_CTL_LDPC |                \
-       IEEE80211_TX_CTL_STBC | IEEE80211_TX_STATUS_EOSP)
-@@ -659,6 +659,8 @@ ieee80211_tx_info_clear_status(struct ie
-  * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index
-  * @RX_FLAG_40MHZ: HT40 (40 MHz) was used
-  * @RX_FLAG_SHORT_GI: Short guard interval was used
-+ * @RX_FLAG_NO_SIGNAL_VAL: The signal strength value is not present.
-+ *    Valid only for data frames (mainly A-MPDU)
-  */
- enum mac80211_rx_flags {
-       RX_FLAG_MMIC_ERROR      = 1<<0,
-@@ -672,6 +674,7 @@ enum mac80211_rx_flags {
-       RX_FLAG_HT              = 1<<9,
-       RX_FLAG_40MHZ           = 1<<10,
-       RX_FLAG_SHORT_GI        = 1<<11,
-+      RX_FLAG_NO_SIGNAL_VAL   = 1<<12,
- };
++      rcu_read_unlock();
  
- /**
-@@ -1634,7 +1637,7 @@ void ieee80211_free_txskb(struct ieee802
-  * the station sends a PS-Poll or a uAPSD trigger frame, mac80211
-  * will inform the driver of this with the @allow_buffered_frames
-  * callback; this callback is optional. mac80211 will then transmit
-- * the frames as usual and set the %IEEE80211_TX_CTL_POLL_RESPONSE
-+ * the frames as usual and set the %IEEE80211_TX_CTL_NO_PS_BUFFER
-  * on each frame. The last frame in the service period (or the only
-  * response to a PS-Poll) also has %IEEE80211_TX_STATUS_EOSP set to
-  * indicate that it ends the service period; as this frame must have
-@@ -1642,6 +1645,9 @@ void ieee80211_free_txskb(struct ieee802
-  * When TX status is reported for this frame, the service period is
-  * marked has having ended and a new one can be started by the peer.
-  *
-+ * Additionally, non-bufferable MMPDUs can also be transmitted by
-+ * mac80211 with the %IEEE80211_TX_CTL_NO_PS_BUFFER set in them.
-+ *
-  * Another race condition can happen on some devices like iwlwifi
-  * when there are frames queued for the station and it wakes up
-  * or polls; the frames that are already queued could end up being
-@@ -2140,7 +2146,7 @@ enum ieee80211_frame_release_type {
-  * @allow_buffered_frames: Prepare device to allow the given number of frames
-  *    to go out to the given station. The frames will be sent by mac80211
-  *    via the usual TX path after this call. The TX information for frames
-- *    released will also have the %IEEE80211_TX_CTL_POLL_RESPONSE flag set
-+ *    released will also have the %IEEE80211_TX_CTL_NO_PS_BUFFER flag set
-  *    and the last one will also have %IEEE80211_TX_STATUS_EOSP set. In case
-  *    frames from multiple TIDs are released and the driver might reorder
-  *    them between the TIDs, it must set the %IEEE80211_TX_STATUS_EOSP flag
---- a/net/mac80211/agg-rx.c
-+++ b/net/mac80211/agg-rx.c
-@@ -187,6 +187,8 @@ static void ieee80211_send_addba_resp(st
+ #ifdef CONFIG_MAC80211_HT_DEBUG
+       printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
+@@ -200,6 +205,8 @@ static void ieee80211_send_addba_resp(st
                memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
        else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
                memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
                memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
        else if (sdata->vif.type == NL80211_IFTYPE_STATION)
                memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
-@@ -471,6 +472,7 @@ int ieee80211_start_tx_ba_session(struct
+@@ -490,6 +491,7 @@ int ieee80211_start_tx_ba_session(struct
            sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
            sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
            sdata->vif.type != NL80211_IFTYPE_AP &&
        test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
  
        int res = scnprintf(buf, sizeof(buf),
--                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
-+                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+-                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
++                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
                            TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
                            TEST(PS_DRIVER), TEST(AUTHORIZED),
                            TEST(SHORT_PREAMBLE),
                            TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
 --- a/net/mac80211/iface.c
 +++ b/net/mac80211/iface.c
-@@ -178,7 +178,6 @@ static int ieee80211_do_open(struct net_
+@@ -284,7 +284,6 @@ static int ieee80211_do_open(struct net_
  {
        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
        struct ieee80211_local *local = sdata->local;
        u32 changed = 0;
        int res;
        u32 hw_reconf_flags = 0;
-@@ -309,28 +308,6 @@ static int ieee80211_do_open(struct net_
+@@ -430,28 +429,6 @@ static int ieee80211_do_open(struct net_
  
        set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
        /*
         * set_multicast_list will be invoked by the networking core
         * which will check whether any increments here were done in
-@@ -357,8 +334,7 @@ static int ieee80211_do_open(struct net_
-       netif_tx_start_all_queues(dev);
-       return 0;
-- err_del_interface:
--      drv_remove_interface(local, sdata);
-+
-  err_stop:
-       if (!local->open_count)
-               drv_stop(local);
-@@ -722,6 +698,70 @@ static void ieee80211_if_setup(struct ne
+@@ -642,6 +619,8 @@ static void ieee80211_do_stop(struct iee
+               ieee80211_configure_filter(local);
+               break;
+       default:
++              flush_work(&local->hw_roc_start);
++              flush_work(&local->hw_roc_done);
+               flush_work(&sdata->work);
+               /*
+                * When we get here, the interface is marked down.
+@@ -848,6 +827,72 @@ static void ieee80211_if_setup(struct ne
        dev->destructor = free_netdev;
  }
  
 +      ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
 +                             skb->len - baselen, &elems);
 +
-+      rates = ieee80211_sta_get_rates(local, &elems, band);
++      rates = ieee80211_sta_get_rates(local, &elems, band, NULL);
 +
 +      rcu_read_lock();
 +
 +              set_sta_flag(sta, WLAN_STA_WME);
 +
 +      if (new) {
-+              set_sta_flag(sta, WLAN_STA_AUTHORIZED);
++              sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
++              sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
++              sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
 +              rate_control_rate_init(sta);
 +              sta_info_insert_rcu(sta);
 +      }
  static void ieee80211_iface_work(struct work_struct *work)
  {
        struct ieee80211_sub_if_data *sdata =
-@@ -826,6 +866,9 @@ static void ieee80211_iface_work(struct 
+@@ -952,6 +997,9 @@ static void ieee80211_iface_work(struct 
                                break;
                        ieee80211_mesh_rx_queued_mgmt(sdata, skb);
                        break;
                        break;
 --- a/net/mac80211/rx.c
 +++ b/net/mac80211/rx.c
-@@ -177,7 +177,8 @@ ieee80211_add_rx_radiotap_header(struct 
-       pos += 2;
-       /* IEEE80211_RADIOTAP_DBM_ANTSIGNAL */
--      if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
-+      if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM &&
-+          !(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
-               *pos = status->signal;
-               rthdr->it_present |=
-                       cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
-@@ -489,12 +490,12 @@ ieee80211_rx_mesh_check(struct ieee80211
-                       if (ieee80211_has_tods(hdr->frame_control) ||
-                               !ieee80211_has_fromds(hdr->frame_control))
-                               return RX_DROP_MONITOR;
--                      if (memcmp(hdr->addr3, dev_addr, ETH_ALEN) == 0)
-+                      if (compare_ether_addr(hdr->addr3, dev_addr) == 0)
-                               return RX_DROP_MONITOR;
-               } else {
-                       if (!ieee80211_has_a4(hdr->frame_control))
-                               return RX_DROP_MONITOR;
--                      if (memcmp(hdr->addr4, dev_addr, ETH_ALEN) == 0)
-+                      if (compare_ether_addr(hdr->addr4, dev_addr) == 0)
-                               return RX_DROP_MONITOR;
-               }
-       }
-@@ -1309,8 +1310,10 @@ ieee80211_rx_h_sta_process(struct ieee80
-       sta->rx_fragments++;
-       sta->rx_bytes += rx->skb->len;
--      sta->last_signal = status->signal;
--      ewma_add(&sta->avg_signal, -status->signal);
-+      if (!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
-+              sta->last_signal = status->signal;
-+              ewma_add(&sta->avg_signal, -status->signal);
-+      }
-       /*
-        * Change STA power saving mode only at the end of a frame
-@@ -2282,6 +2285,7 @@ ieee80211_rx_h_action(struct ieee80211_r
+@@ -2284,6 +2284,7 @@ ieee80211_rx_h_action(struct ieee80211_r
                    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
                    sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
                    sdata->vif.type != NL80211_IFTYPE_AP &&
                    sdata->vif.type != NL80211_IFTYPE_ADHOC)
                        break;
  
-@@ -2336,7 +2340,7 @@ ieee80211_rx_h_action(struct ieee80211_r
-                       if (sdata->vif.type != NL80211_IFTYPE_STATION)
-                               break;
--                      if (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN))
-+                      if (compare_ether_addr(mgmt->bssid, sdata->u.mgd.bssid))
-                               break;
-                       goto queue;
-@@ -2492,14 +2496,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2498,14 +2499,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
  
        if (!ieee80211_vif_is_mesh(&sdata->vif) &&
            sdata->vif.type != NL80211_IFTYPE_ADHOC &&
                break;
        case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
        case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
-@@ -2853,10 +2858,16 @@ static int prepare_for_handlers(struct i
+@@ -2839,10 +2841,16 @@ static int prepare_for_handlers(struct i
                }
                break;
        case NL80211_IFTYPE_WDS:
                break;
        default:
                /* should never get here */
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -9,6 +9,7 @@
- #include <linux/module.h>
- #include <linux/init.h>
-+#include <linux/etherdevice.h>
- #include <linux/netdevice.h>
- #include <linux/types.h>
- #include <linux/slab.h>
-@@ -101,7 +102,7 @@ struct sta_info *sta_info_get(struct iee
-                                   lockdep_is_held(&local->sta_mtx));
-       while (sta) {
-               if (sta->sdata == sdata &&
--                  memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
-+                  compare_ether_addr(sta->sta.addr, addr) == 0)
-                       break;
-               sta = rcu_dereference_check(sta->hnext,
-                                           lockdep_is_held(&local->sta_mtx));
-@@ -124,7 +125,7 @@ struct sta_info *sta_info_get_bss(struct
-       while (sta) {
-               if ((sta->sdata == sdata ||
-                    (sta->sdata->bss && sta->sdata->bss == sdata->bss)) &&
--                  memcmp(sta->sta.addr, addr, ETH_ALEN) == 0)
-+                  compare_ether_addr(sta->sta.addr, addr) == 0)
-                       break;
-               sta = rcu_dereference_check(sta->hnext,
-                                           lockdep_is_held(&local->sta_mtx));
-@@ -1050,7 +1051,7 @@ static void ieee80211_send_null_response
-        * 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 +1178,7 @@ ieee80211_sta_ps_deliver_response(struct
-                        * 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
 --- a/net/mac80211/sta_info.h
 +++ b/net/mac80211/sta_info.h
-@@ -14,6 +14,7 @@
- #include <linux/if_ether.h>
- #include <linux/workqueue.h>
- #include <linux/average.h>
-+#include <linux/etherdevice.h>
- #include "key.h"
- /**
-@@ -31,7 +32,6 @@
+@@ -32,7 +32,6 @@
   * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
   *    frames.
   * @WLAN_STA_WME: Station is a QoS-STA.
   * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
   *    IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
   *    frame to this station is transmitted.
-@@ -62,7 +62,6 @@ enum ieee80211_sta_info_flags {
+@@ -64,7 +63,6 @@ enum ieee80211_sta_info_flags {
        WLAN_STA_AUTHORIZED,
        WLAN_STA_SHORT_PREAMBLE,
        WLAN_STA_WME,
        WLAN_STA_CLEAR_PS_FILT,
        WLAN_STA_MFP,
        WLAN_STA_BLOCK_BA,
-@@ -489,7 +488,7 @@ void for_each_sta_info_type_check(struct
-               nxt = _sta ? rcu_dereference(_sta->hnext) : NULL        \
-            )                                                          \
-       /* compare address and run code only if it matches */           \
--      if (memcmp(_sta->sta.addr, (_addr), ETH_ALEN) == 0)
-+      if (compare_ether_addr(_sta->sta.addr, (_addr)) == 0)
- /*
-  * Get STA info by index, BROKEN!
---- a/net/mac80211/tx.c
-+++ b/net/mac80211/tx.c
-@@ -448,18 +448,23 @@ ieee80211_tx_h_unicast_ps_buf(struct iee
-       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);
---- a/net/mac80211/ieee80211_i.h
-+++ b/net/mac80211/ieee80211_i.h
-@@ -480,7 +480,7 @@ struct ieee80211_if_ibss {
-       bool control_port;
--      u8 bssid[ETH_ALEN];
-+      u8 bssid[ETH_ALEN] __aligned(2);
-       u8 ssid[IEEE80211_MAX_SSID_LEN];
-       u8 ssid_len, ie_len;
-       u8 *ie;
---- a/net/mac80211/ibss.c
-+++ b/net/mac80211/ibss.c
-@@ -66,7 +66,7 @@ static void __ieee80211_sta_join_ibss(st
-       skb_reset_tail_pointer(skb);
-       skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
--      if (memcmp(ifibss->bssid, bssid, ETH_ALEN))
-+      if (compare_ether_addr(ifibss->bssid, bssid))
-               sta_info_flush(sdata->local, sdata);
-       /* if merging, indicate to driver that we leave the old IBSS */
-@@ -403,7 +403,7 @@ static void ieee80211_rx_bss_info(struct
-               return;
-       if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
--          memcmp(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(mgmt->bssid, sdata->u.ibss.bssid) == 0) {
-               rcu_read_lock();
-               sta = sta_info_get(sdata, mgmt->sa);
-@@ -508,7 +508,7 @@ static void ieee80211_rx_bss_info(struct
-               goto put_bss;
-       /* same BSSID */
--      if (memcmp(cbss->bssid, sdata->u.ibss.bssid, ETH_ALEN) == 0)
-+      if (compare_ether_addr(cbss->bssid, sdata->u.ibss.bssid) == 0)
-               goto put_bss;
-       if (rx_status->flag & RX_FLAG_MACTIME_MPDU) {
-@@ -831,8 +831,8 @@ static void ieee80211_rx_mgmt_probe_req(
-       if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da))
-               return;
--      if (memcmp(mgmt->bssid, ifibss->bssid, ETH_ALEN) != 0 &&
--          memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
-+      if (compare_ether_addr(mgmt->bssid, ifibss->bssid) != 0 &&
-+          !is_broadcast_ether_addr(mgmt->bssid))
-               return;
-       end = ((u8 *) mgmt) + len;
---- a/net/mac80211/mesh.c
-+++ b/net/mac80211/mesh.c
-@@ -204,7 +204,7 @@ int mesh_rmc_check(u8 *sa, struct ieee80
-                       kmem_cache_free(rm_cache, p);
-                       --entries;
-               } else if ((seqnum == p->seqnum) &&
--                         (memcmp(sa, p->sa, ETH_ALEN) == 0))
-+                         (compare_ether_addr(sa, p->sa) == 0))
-                       return -1;
-       }
---- a/net/mac80211/mesh_hwmp.c
-+++ b/net/mac80211/mesh_hwmp.c
-@@ -8,6 +8,7 @@
-  */
- #include <linux/slab.h>
-+#include <linux/etherdevice.h>
- #include <asm/unaligned.h>
- #include "wme.h"
- #include "mesh.h"
-@@ -419,7 +420,7 @@ static u32 hwmp_route_info_get(struct ie
-               new_metric = MAX_METRIC;
-       exp_time = TU_TO_EXP_TIME(orig_lifetime);
--      if (memcmp(orig_addr, sdata->vif.addr, ETH_ALEN) == 0) {
-+      if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0) {
-               /* This MP is the originator, we are not interested in this
-                * frame, except for updating transmitter's path info.
-                */
-@@ -469,7 +470,7 @@ static u32 hwmp_route_info_get(struct ie
-       /* Update and check transmitter routing info */
-       ta = mgmt->sa;
--      if (memcmp(orig_addr, ta, ETH_ALEN) == 0)
-+      if (compare_ether_addr(orig_addr, ta) == 0)
-               fresh_info = false;
-       else {
-               fresh_info = true;
-@@ -529,7 +530,7 @@ static void hwmp_preq_frame_process(stru
-       mhwmp_dbg("received PREQ from %pM", orig_addr);
--      if (memcmp(target_addr, sdata->vif.addr, ETH_ALEN) == 0) {
-+      if (compare_ether_addr(target_addr, sdata->vif.addr) == 0) {
-               mhwmp_dbg("PREQ is for us");
-               forward = false;
-               reply = true;
-@@ -624,7 +625,7 @@ static void hwmp_prep_frame_process(stru
-       mhwmp_dbg("received PREP from %pM", PREP_IE_ORIG_ADDR(prep_elem));
-       orig_addr = PREP_IE_ORIG_ADDR(prep_elem);
--      if (memcmp(orig_addr, sdata->vif.addr, ETH_ALEN) == 0)
-+      if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0)
-               /* destination, no forwarding required */
-               return;
-@@ -694,10 +695,12 @@ static void hwmp_perr_frame_process(stru
-       rcu_read_lock();
-       mpath = mesh_path_lookup(target_addr, sdata);
-       if (mpath) {
-+              struct sta_info *sta;
-+
-               spin_lock_bh(&mpath->state_lock);
-+              sta = next_hop_deref_protected(mpath);
-               if (mpath->flags & MESH_PATH_ACTIVE &&
--                  memcmp(ta, next_hop_deref_protected(mpath)->sta.addr,
--                                                      ETH_ALEN) == 0 &&
-+                  compare_ether_addr(ta, sta->sta.addr) == 0 &&
-                   (!(mpath->flags & MESH_PATH_SN_VALID) ||
-                   SN_GT(target_sn, mpath->sn))) {
-                       mpath->flags &= ~MESH_PATH_ACTIVE;
-@@ -739,7 +742,7 @@ static void hwmp_rann_frame_process(stru
-       metric = rann->rann_metric;
-       /*  Ignore our own RANNs */
--      if (memcmp(orig_addr, sdata->vif.addr, ETH_ALEN) == 0)
-+      if (compare_ether_addr(orig_addr, sdata->vif.addr) == 0)
-               return;
-       mhwmp_dbg("received RANN from %pM (is_gate=%d)", orig_addr,
-@@ -1064,7 +1067,7 @@ int mesh_nexthop_lookup(struct sk_buff *
-       if (time_after(jiffies,
-                      mpath->exp_time -
-                      msecs_to_jiffies(sdata->u.mesh.mshcfg.path_refresh_time)) &&
--          !memcmp(sdata->vif.addr, hdr->addr4, ETH_ALEN) &&
-+          !compare_ether_addr(sdata->vif.addr, hdr->addr4) &&
-           !(mpath->flags & MESH_PATH_RESOLVING) &&
-           !(mpath->flags & MESH_PATH_FIXED))
-               mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH);
---- a/net/mac80211/mesh_pathtbl.c
-+++ b/net/mac80211/mesh_pathtbl.c
-@@ -350,7 +350,7 @@ static struct mesh_path *mpath_lookup(st
-       hlist_for_each_entry_rcu(node, n, bucket, list) {
-               mpath = node->mpath;
-               if (mpath->sdata == sdata &&
--                              memcmp(dst, mpath->dst, ETH_ALEN) == 0) {
-+                              compare_ether_addr(dst, mpath->dst) == 0) {
-                       if (MPATH_EXPIRED(mpath)) {
-                               spin_lock_bh(&mpath->state_lock);
-                               mpath->flags &= ~MESH_PATH_ACTIVE;
-@@ -525,7 +525,7 @@ int mesh_path_add(u8 *dst, struct ieee80
-       int err = 0;
-       u32 hash_idx;
--      if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0)
-+      if (compare_ether_addr(dst, sdata->vif.addr) == 0)
-               /* never add ourselves as neighbours */
-               return -ENOTSUPP;
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -804,7 +804,7 @@ void ieee80211_set_wmm_default(struct ie
+       struct ieee80211_local *local = sdata->local;
+       struct ieee80211_tx_queue_params qparam;
+       int ac;
+-      bool use_11b;
++      bool use_11b, enable_qos;
+       int aCWmin, aCWmax;
+       if (!local->ops->conf_tx)
+@@ -818,6 +818,13 @@ void ieee80211_set_wmm_default(struct ie
+       use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) &&
+                !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE);
++      /*
++       * By default disable QoS in STA mode for old access points, which do
++       * not support 802.11e. New APs will provide proper queue parameters,
++       * that we will configure later.
++       */
++      enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION);
++
+       for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+               /* Set defaults according to 802.11-2007 Table 7-37 */
+               aCWmax = 1023;
+@@ -826,38 +833,47 @@ void ieee80211_set_wmm_default(struct ie
+               else
+                       aCWmin = 15;
+-              switch (ac) {
+-              case IEEE80211_AC_BK:
+-                      qparam.cw_max = aCWmax;
+-                      qparam.cw_min = aCWmin;
+-                      qparam.txop = 0;
+-                      qparam.aifs = 7;
+-                      break;
+-              default: /* never happens but let's not leave undefined */
+-              case IEEE80211_AC_BE:
++              if (enable_qos) {
++                      switch (ac) {
++                      case IEEE80211_AC_BK:
++                              qparam.cw_max = aCWmax;
++                              qparam.cw_min = aCWmin;
++                              qparam.txop = 0;
++                              qparam.aifs = 7;
++                              break;
++                      /* never happens but let's not leave undefined */
++                      default:
++                      case IEEE80211_AC_BE:
++                              qparam.cw_max = aCWmax;
++                              qparam.cw_min = aCWmin;
++                              qparam.txop = 0;
++                              qparam.aifs = 3;
++                              break;
++                      case IEEE80211_AC_VI:
++                              qparam.cw_max = aCWmin;
++                              qparam.cw_min = (aCWmin + 1) / 2 - 1;
++                              if (use_11b)
++                                      qparam.txop = 6016/32;
++                              else
++                                      qparam.txop = 3008/32;
++                              qparam.aifs = 2;
++                              break;
++                      case IEEE80211_AC_VO:
++                              qparam.cw_max = (aCWmin + 1) / 2 - 1;
++                              qparam.cw_min = (aCWmin + 1) / 4 - 1;
++                              if (use_11b)
++                                      qparam.txop = 3264/32;
++                              else
++                                      qparam.txop = 1504/32;
++                              qparam.aifs = 2;
++                              break;
++                      }
++              } else {
++                      /* Confiure old 802.11b/g medium access rules. */
+                       qparam.cw_max = aCWmax;
+                       qparam.cw_min = aCWmin;
+                       qparam.txop = 0;
+-                      qparam.aifs = 3;
+-                      break;
+-              case IEEE80211_AC_VI:
+-                      qparam.cw_max = aCWmin;
+-                      qparam.cw_min = (aCWmin + 1) / 2 - 1;
+-                      if (use_11b)
+-                              qparam.txop = 6016/32;
+-                      else
+-                              qparam.txop = 3008/32;
+                       qparam.aifs = 2;
+-                      break;
+-              case IEEE80211_AC_VO:
+-                      qparam.cw_max = (aCWmin + 1) / 2 - 1;
+-                      qparam.cw_min = (aCWmin + 1) / 4 - 1;
+-                      if (use_11b)
+-                              qparam.txop = 3264/32;
+-                      else
+-                              qparam.txop = 1504/32;
+-                      qparam.aifs = 2;
+-                      break;
+               }
  
-@@ -566,7 +566,8 @@ int mesh_path_add(u8 *dst, struct ieee80
-       err = -EEXIST;
-       hlist_for_each_entry(node, n, bucket, list) {
-               mpath = node->mpath;
--              if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
-+              if (mpath->sdata == sdata &&
-+                  compare_ether_addr(dst, mpath->dst) == 0)
-                       goto err_exists;
+               qparam.uapsd = false;
+@@ -866,12 +882,8 @@ void ieee80211_set_wmm_default(struct ie
+               drv_conf_tx(local, sdata, ac, &qparam);
        }
  
-@@ -657,7 +658,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struc
-       int err = 0;
-       u32 hash_idx;
--      if (memcmp(dst, sdata->vif.addr, ETH_ALEN) == 0)
-+      if (compare_ether_addr(dst, sdata->vif.addr) == 0)
-               /* never add ourselves as neighbours */
-               return -ENOTSUPP;
-@@ -694,7 +695,8 @@ int mpp_path_add(u8 *dst, u8 *mpp, struc
-       err = -EEXIST;
-       hlist_for_each_entry(node, n, bucket, list) {
-               mpath = node->mpath;
--              if (mpath->sdata == sdata && memcmp(dst, mpath->dst, ETH_ALEN) == 0)
-+              if (mpath->sdata == sdata &&
-+                  compare_ether_addr(dst, mpath->dst) == 0)
-                       goto err_exists;
+-      /* after reinitialize QoS TX queues setting to default,
+-       * disable QoS at all */
+-
+       if (sdata->vif.type != NL80211_IFTYPE_MONITOR) {
+-              sdata->vif.bss_conf.qos =
+-                      sdata->vif.type != NL80211_IFTYPE_STATION;
++              sdata->vif.bss_conf.qos = enable_qos;
+               if (bss_notify)
+                       ieee80211_bss_info_change_notify(sdata,
+                                                        BSS_CHANGED_QOS);
+--- a/drivers/net/wireless/ath/ath9k/beacon.c
++++ b/drivers/net/wireless/ath/ath9k/beacon.c
+@@ -48,7 +48,10 @@ int ath_beaconq_config(struct ath_softc 
+               txq = sc->tx.txq_map[WME_AC_BE];
+               ath9k_hw_get_txq_props(ah, txq->axq_qnum, &qi_be);
+               qi.tqi_aifs = qi_be.tqi_aifs;
+-              qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
++              if (ah->slottime == ATH9K_SLOT_TIME_20)
++                      qi.tqi_cwmin = 2*qi_be.tqi_cwmin;
++              else
++                      qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
+               qi.tqi_cwmax = qi_be.tqi_cwmax;
        }
  
-@@ -887,7 +889,7 @@ int mesh_path_del(u8 *addr, struct ieee8
-       hlist_for_each_entry(node, n, bucket, list) {
-               mpath = node->mpath;
-               if (mpath->sdata == sdata &&
--                  memcmp(addr, mpath->dst, ETH_ALEN) == 0) {
-+                  compare_ether_addr(addr, mpath->dst) == 0) {
-                       __mesh_path_del(tbl, node);
-                       goto enddel;
-               }
 --- a/net/mac80211/mlme.c
 +++ b/net/mac80211/mlme.c
-@@ -1812,7 +1812,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_
-       memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN);
--      if (memcmp(bssid, mgmt->bssid, ETH_ALEN))
-+      if (compare_ether_addr(bssid, mgmt->bssid))
-               return RX_MGMT_NONE;
-       auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
-@@ -1893,7 +1893,7 @@ ieee80211_rx_mgmt_deauth(struct ieee8021
-               return RX_MGMT_NONE;
-       if (!ifmgd->associated ||
--          memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN))
-+          compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid))
-               return RX_MGMT_NONE;
-       bssid = ifmgd->associated->bssid;
-@@ -1925,7 +1925,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80
-               return RX_MGMT_NONE;
-       if (!ifmgd->associated ||
--          memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN))
-+          compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid))
-               return RX_MGMT_NONE;
-       reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
-@@ -2190,7 +2190,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee
-       if (!assoc_data)
-               return RX_MGMT_NONE;
--      if (memcmp(assoc_data->bss->bssid, mgmt->bssid, ETH_ALEN))
-+      if (compare_ether_addr(assoc_data->bss->bssid, mgmt->bssid))
-               return RX_MGMT_NONE;
-       /*
-@@ -2278,8 +2278,8 @@ static void ieee80211_rx_bss_info(struct
-       bool need_ps = false;
-       if (sdata->u.mgd.associated &&
--          memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid,
--                 ETH_ALEN) == 0) {
-+          compare_ether_addr(mgmt->bssid, sdata->u.mgd.associated->bssid)
-+          == 0) {
-               bss = (void *)sdata->u.mgd.associated->priv;
-               /* not previously set so we may need to recalc */
-               need_ps = !bss->dtim_period;
-@@ -2334,7 +2334,7 @@ static void ieee80211_rx_mgmt_probe_resp
-       ASSERT_MGD_MTX(ifmgd);
--      if (memcmp(mgmt->da, sdata->vif.addr, ETH_ALEN))
-+      if (compare_ether_addr(mgmt->da, sdata->vif.addr))
-               return; /* ignore ProbeResp to foreign address */
-       baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
-@@ -2347,11 +2347,12 @@ static void ieee80211_rx_mgmt_probe_resp
-       ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
-       if (ifmgd->associated &&
--          memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0)
-+          compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid) == 0)
-               ieee80211_reset_ap_probe(sdata);
-       if (ifmgd->auth_data && !ifmgd->auth_data->bss->proberesp_ies &&
--          memcmp(mgmt->bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(mgmt->bssid, ifmgd->auth_data->bss->bssid)
-+          == 0) {
-               /* got probe response, continue with auth */
-               printk(KERN_DEBUG "%s: direct probe responded\n", sdata->name);
-               ifmgd->auth_data->tries = 0;
-@@ -2408,7 +2409,8 @@ static void ieee80211_rx_mgmt_beacon(str
-               return;
-       if (ifmgd->assoc_data && !ifmgd->assoc_data->have_beacon &&
--          memcmp(mgmt->bssid, ifmgd->assoc_data->bss->bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(mgmt->bssid, ifmgd->assoc_data->bss->bssid)
-+          == 0) {
-               ieee802_11_parse_elems(mgmt->u.beacon.variable,
-                                      len - baselen, &elems);
-@@ -2423,7 +2425,7 @@ static void ieee80211_rx_mgmt_beacon(str
-       }
-       if (!ifmgd->associated ||
--          memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN))
-+          compare_ether_addr(mgmt->bssid, ifmgd->associated->bssid))
-               return;
-       bssid = ifmgd->associated->bssid;
-@@ -3285,7 +3287,7 @@ int ieee80211_mgd_assoc(struct ieee80211
-               bool match;
-               /* keep sta info, bssid if matching */
--              match = memcmp(ifmgd->bssid, req->bss->bssid, ETH_ALEN) == 0;
-+              match = compare_ether_addr(ifmgd->bssid, req->bss->bssid) == 0;
-               ieee80211_destroy_auth_data(sdata, match);
-       }
-@@ -3407,7 +3409,7 @@ int ieee80211_mgd_assoc(struct ieee80211
-                       goto err_clear;
-               }
-       } else
--              WARN_ON_ONCE(memcmp(ifmgd->bssid, req->bss->bssid, ETH_ALEN));
-+              WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, req->bss->bssid));
-       if (!bss->dtim_period &&
-           sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) {
-@@ -3448,7 +3450,7 @@ int ieee80211_mgd_deauth(struct ieee8021
-       mutex_lock(&ifmgd->mtx);
-       if (ifmgd->associated &&
--          memcmp(ifmgd->associated->bssid, req->bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(ifmgd->associated->bssid, req->bssid) == 0) {
-               ieee80211_set_disassoc(sdata, false, true);
-               assoc_bss = true;
-       } else if (ifmgd->auth_data) {
---- a/net/mac80211/status.c
-+++ b/net/mac80211/status.c
-@@ -10,6 +10,7 @@
-  */
- #include <linux/export.h>
-+#include <linux/etherdevice.h>
- #include <net/mac80211.h>
- #include <asm/unaligned.h>
- #include "ieee80211_i.h"
-@@ -377,7 +378,7 @@ void ieee80211_tx_status(struct ieee8021
-       for_each_sta_info(local, hdr->addr1, sta, tmp) {
-               /* skip wrong virtual interface */
--              if (memcmp(hdr->addr2, sta->sdata->vif.addr, ETH_ALEN))
-+              if (compare_ether_addr(hdr->addr2, sta->sdata->vif.addr))
-                       continue;
-               if (info->flags & IEEE80211_TX_STATUS_EOSP)
---- a/net/wireless/mlme.c
-+++ b/net/wireless/mlme.c
-@@ -6,6 +6,7 @@
- #include <linux/kernel.h>
- #include <linux/module.h>
-+#include <linux/etherdevice.h>
- #include <linux/netdevice.h>
- #include <linux/nl80211.h>
- #include <linux/slab.h>
-@@ -100,7 +101,7 @@ void __cfg80211_send_deauth(struct net_d
-       ASSERT_WDEV_LOCK(wdev);
-       if (wdev->current_bss &&
--          memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0) {
-               cfg80211_unhold_bss(wdev->current_bss);
-               cfg80211_put_bss(&wdev->current_bss->pub);
-               wdev->current_bss = NULL;
-@@ -115,7 +116,7 @@ void __cfg80211_send_deauth(struct net_d
-               reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
--              from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
-+              from_ap = compare_ether_addr(mgmt->sa, dev->dev_addr) != 0;
-               __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
-       } else if (wdev->sme_state == CFG80211_SME_CONNECTING) {
-               __cfg80211_connect_result(dev, mgmt->bssid, NULL, 0, NULL, 0,
-@@ -154,7 +155,7 @@ void __cfg80211_send_disassoc(struct net
-               return;
-       if (wdev->current_bss &&
--          memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0) {
-               cfg80211_sme_disassoc(dev, wdev->current_bss);
-               cfg80211_unhold_bss(wdev->current_bss);
-               cfg80211_put_bss(&wdev->current_bss->pub);
-@@ -165,7 +166,7 @@ void __cfg80211_send_disassoc(struct net
-       reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
--      from_ap = memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0;
-+      from_ap = compare_ether_addr(mgmt->sa, dev->dev_addr) != 0;
-       __cfg80211_disconnected(dev, NULL, 0, reason_code, from_ap);
+@@ -1220,6 +1220,22 @@ static void ieee80211_sta_wmm_params(str
+       sdata->vif.bss_conf.qos = true;
  }
- EXPORT_SYMBOL(__cfg80211_send_disassoc);
-@@ -285,7 +286,7 @@ int __cfg80211_mlme_auth(struct cfg80211
-                       return -EINVAL;
-       if (wdev->current_bss &&
--          memcmp(bssid, wdev->current_bss->pub.bssid, ETH_ALEN) == 0)
-+          compare_ether_addr(bssid, wdev->current_bss->pub.bssid) == 0)
-               return -EALREADY;
-       memset(&req, 0, sizeof(req));
-@@ -362,7 +363,7 @@ int __cfg80211_mlme_assoc(struct cfg8021
-       memset(&req, 0, sizeof(req));
-       if (wdev->current_bss && prev_bssid &&
--          memcmp(wdev->current_bss->pub.bssid, prev_bssid, ETH_ALEN) == 0) {
-+          compare_ether_addr(wdev->current_bss->pub.bssid, prev_bssid) == 0) {
-               /*
-                * Trying to reassociate: Allow this to proceed and let the old
-                * association to be dropped when the new one is completed.
-@@ -446,7 +447,8 @@ int __cfg80211_mlme_deauth(struct cfg802
-       if (local_state_change) {
-               if (wdev->current_bss &&
--                  memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0) {
-+                  compare_ether_addr(wdev->current_bss->pub.bssid, bssid)
-+                  == 0) {
-                       cfg80211_unhold_bss(wdev->current_bss);
-                       cfg80211_put_bss(&wdev->current_bss->pub);
-                       wdev->current_bss = NULL;
-@@ -495,7 +497,7 @@ static int __cfg80211_mlme_disassoc(stru
-       req.local_state_change = local_state_change;
-       req.ie = ie;
-       req.ie_len = ie_len;
--      if (memcmp(wdev->current_bss->pub.bssid, bssid, ETH_ALEN) == 0)
-+      if (compare_ether_addr(wdev->current_bss->pub.bssid, bssid) == 0)
-               req.bss = &wdev->current_bss->pub;
-       else
-               return -ENOTCONN;
-@@ -758,8 +760,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg8021
-                               break;
-                       }
--                      if (memcmp(wdev->current_bss->pub.bssid,
--                                 mgmt->bssid, ETH_ALEN)) {
-+                      if (compare_ether_addr(wdev->current_bss->pub.bssid,
-+                                             mgmt->bssid)) {
-                               err = -ENOTCONN;
-                               break;
-                       }
-@@ -772,8 +774,8 @@ int cfg80211_mlme_mgmt_tx(struct cfg8021
-                               break;
-                       /* for station, check that DA is the AP */
--                      if (memcmp(wdev->current_bss->pub.bssid,
--                                 mgmt->da, ETH_ALEN)) {
-+                      if (compare_ether_addr(wdev->current_bss->pub.bssid,
-+                                             mgmt->da)) {
-                               err = -ENOTCONN;
-                               break;
-                       }
-@@ -781,11 +783,11 @@ int cfg80211_mlme_mgmt_tx(struct cfg8021
-               case NL80211_IFTYPE_AP:
-               case NL80211_IFTYPE_P2P_GO:
-               case NL80211_IFTYPE_AP_VLAN:
--                      if (memcmp(mgmt->bssid, dev->dev_addr, ETH_ALEN))
-+                      if (compare_ether_addr(mgmt->bssid, dev->dev_addr))
-                               err = -EINVAL;
-                       break;
-               case NL80211_IFTYPE_MESH_POINT:
--                      if (memcmp(mgmt->sa, mgmt->bssid, ETH_ALEN)) {
-+                      if (compare_ether_addr(mgmt->sa, mgmt->bssid)) {
-                               err = -EINVAL;
-                               break;
-                       }
-@@ -804,7 +806,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg8021
-                       return err;
-       }
--      if (memcmp(mgmt->sa, dev->dev_addr, ETH_ALEN) != 0)
-+      if (compare_ether_addr(mgmt->sa, dev->dev_addr) != 0)
-               return -EINVAL;
-       /* Transmit the Action frame as requested by user space */
---- a/net/wireless/scan.c
-+++ b/net/wireless/scan.c
-@@ -378,7 +378,7 @@ static int cmp_bss_core(struct cfg80211_
-                              b->len_information_elements);
-       }
--      return memcmp(a->bssid, b->bssid, ETH_ALEN);
-+      return compare_ether_addr(a->bssid, b->bssid);
- }
- static int cmp_bss(struct cfg80211_bss *a,
---- a/drivers/net/wireless/ath/ath9k/Kconfig
-+++ b/drivers/net/wireless/ath/ath9k/Kconfig
-@@ -81,6 +81,14 @@ config ATH9K_DFS_CERTIFIED
-         developed. At this point enabling this option won't do anything
-         except increase code size.
-+config ATH9K_MAC_DEBUG
-+      bool "Atheros MAC statistics"
-+      depends on ATH9K_DEBUGFS
-+      default y
-+      ---help---
-+        This option enables collection of statistics for Rx/Tx status
-+        data and some other MAC related statistics
-+
- config ATH9K_RATE_CONTROL
-       bool "Atheros ath9k rate control"
-       depends on ATH9K
---- a/drivers/net/wireless/ath/ath9k/debug.c
-+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -818,6 +818,7 @@ void ath_debug_stat_tx(struct ath_softc 
-       if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
-               TX_STAT_INC(qnum, delim_underrun);
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-       spin_lock(&sc->debug.samp_lock);
-       TX_SAMP_DBG(jiffies) = jiffies;
-       TX_SAMP_DBG(rssi_ctl0) = ts->ts_rssi_ctl0;
-@@ -844,6 +845,7 @@ void ath_debug_stat_tx(struct ath_softc 
-       sc->debug.tsidx = (sc->debug.tsidx + 1) % ATH_DBG_MAX_SAMPLES;
-       spin_unlock(&sc->debug.samp_lock);
-+#endif
- #undef TX_SAMP_DBG
- }
-@@ -1019,6 +1021,7 @@ void ath_debug_stat_rx(struct ath_softc 
-       sc->debug.stats.rxstats.rs_antenna = rs->rs_antenna;
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-       spin_lock(&sc->debug.samp_lock);
-       RX_SAMP_DBG(jiffies) = jiffies;
-       RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0;
-@@ -1035,6 +1038,8 @@ void ath_debug_stat_rx(struct ath_softc 
-       sc->debug.rsidx = (sc->debug.rsidx + 1) % ATH_DBG_MAX_SAMPLES;
-       spin_unlock(&sc->debug.samp_lock);
-+#endif
-+
- #undef RX_STAT_INC
- #undef RX_PHY_ERR_INC
- #undef RX_SAMP_DBG
-@@ -1278,6 +1283,8 @@ static const struct file_operations fops
-       .llseek = default_llseek,
- };
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-+
- void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
- {
- #define ATH_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].c)
-@@ -1551,6 +1558,7 @@ static const struct file_operations fops
-       .llseek = default_llseek,
- };
-+#endif
- int ath9k_init_debug(struct ath_hw *ah)
- {
-@@ -1604,8 +1612,10 @@ int ath9k_init_debug(struct ath_hw *ah)
-                           &fops_base_eeprom);
-       debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
-                           &fops_modal_eeprom);
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-       debugfs_create_file("samples", S_IRUSR, sc->debug.debugfs_phy, sc,
-                           &fops_samps);
-+#endif
-       debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
-                          sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
---- a/drivers/net/wireless/ath/ath9k/debug.h
-+++ b/drivers/net/wireless/ath/ath9k/debug.h
-@@ -235,16 +235,17 @@ struct ath9k_debug {
-       struct dentry *debugfs_phy;
-       u32 regidx;
-       struct ath_stats stats;
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-       spinlock_t samp_lock;
-       struct ath_dbg_bb_mac_samp bb_mac_samp[ATH_DBG_MAX_SAMPLES];
-       u8 sampidx;
-       u8 tsidx;
-       u8 rsidx;
-+#endif
- };
  
- int ath9k_init_debug(struct ath_hw *ah);
--void ath9k_debug_samp_bb_mac(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,
-                      struct ath_tx_status *ts, struct ath_txq *txq,
-@@ -258,10 +259,6 @@ static inline int ath9k_init_debug(struc
-       return 0;
- }
--static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
--{
--}
--
- static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
-                                           enum ath9k_int status)
- {
-@@ -282,4 +279,17 @@ static inline void ath_debug_stat_rx(str
- #endif /* CONFIG_ATH9K_DEBUGFS */
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-+
-+void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
++static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata)
++{
++      lockdep_assert_held(&sdata->local->mtx);
 +
-+#else
++      sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
++                              IEEE80211_STA_BEACON_POLL);
++      ieee80211_run_deferred_scan(sdata->local);
++}
 +
-+static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
++static void ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata)
 +{
++      mutex_lock(&sdata->local->mtx);
++      __ieee80211_stop_poll(sdata);
++      mutex_unlock(&sdata->local->mtx);
 +}
 +
-+#endif
-+
-+
- #endif /* DEBUG_H */
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -555,9 +555,11 @@ static int ath9k_init_softc(u16 devid, s
-       mutex_init(&sc->mutex);
- #ifdef CONFIG_ATH9K_DEBUGFS
-       spin_lock_init(&sc->nodes_lock);
--      spin_lock_init(&sc->debug.samp_lock);
-       INIT_LIST_HEAD(&sc->nodes);
- #endif
-+#ifdef CONFIG_ATH9K_MAC_DEBUG
-+      spin_lock_init(&sc->debug.samp_lock);
-+#endif
-       tasklet_init(&sc->intr_tq, ath9k_tasklet, (unsigned long)sc);
-       tasklet_init(&sc->bcon_tasklet, ath_beacon_tasklet,
-                    (unsigned long)sc);
---- a/drivers/net/wireless/ath/ath9k/hw.c
-+++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1386,10 +1386,16 @@ static bool ath9k_hw_set_reset_reg(struc
- static bool ath9k_hw_chip_reset(struct ath_hw *ah,
-                               struct ath9k_channel *chan)
+ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
+                                          u16 capab, bool erp_valid, u8 erp)
  {
--      if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
--              if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
--                      return false;
--      } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
-+      int reset_type = ATH9K_RESET_WARM;
-+
-+      if (AR_SREV_9280(ah)) {
-+              if (ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
-+                      reset_type = ATH9K_RESET_POWER_ON;
-+              else
-+                      reset_type = ATH9K_RESET_COLD;
-+      }
-+
-+      if (!ath9k_hw_set_reset_reg(ah, reset_type))
-               return false;
+@@ -1285,8 +1301,7 @@ static void ieee80211_set_associated(str
+       sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE;
  
-       if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
---- a/drivers/net/wireless/ath/ath5k/base.c
-+++ b/drivers/net/wireless/ath/ath5k/base.c
-@@ -2330,15 +2330,6 @@ ath5k_calibrate_work(struct work_struct 
-                                       "got new rfgain, resetting\n");
-                       ieee80211_queue_work(ah->hw, &ah->reset_work);
-               }
--
--              /* TODO: On full calibration we should stop TX here,
--               * so that it doesn't interfere (mostly due to gain_f
--               * calibration that messes with tx packets -see phy.c).
--               *
--               * NOTE: Stopping the queues from above is not enough
--               * to stop TX but saves us from disconecting (at least
--               * we don't lose packets). */
--              ieee80211_stop_queues(ah->hw);
-       } else
-               ah->ah_cal_mask |= AR5K_CALIBRATION_SHORT;
+       /* just to be sure */
+-      sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+-                              IEEE80211_STA_BEACON_POLL);
++      ieee80211_stop_poll(sdata);
  
-@@ -2353,10 +2344,9 @@ ath5k_calibrate_work(struct work_struct 
-                               ah->curchan->center_freq));
+       ieee80211_led_assoc(local, 1);
  
-       /* Clear calibration flags */
--      if (ah->ah_cal_mask & AR5K_CALIBRATION_FULL) {
--              ieee80211_wake_queues(ah->hw);
-+      if (ah->ah_cal_mask & AR5K_CALIBRATION_FULL)
-               ah->ah_cal_mask &= ~AR5K_CALIBRATION_FULL;
--      } else if (ah->ah_cal_mask & AR5K_CALIBRATION_SHORT)
-+      else if (ah->ah_cal_mask & AR5K_CALIBRATION_SHORT)
-               ah->ah_cal_mask &= ~AR5K_CALIBRATION_SHORT;
- }
---- a/drivers/net/wireless/ath/ath5k/phy.c
-+++ b/drivers/net/wireless/ath/ath5k/phy.c
-@@ -1871,31 +1871,15 @@ ath5k_hw_phy_calibrate(struct ath5k_hw *
-               ret = 0;
+@@ -1456,8 +1471,7 @@ static void ieee80211_reset_ap_probe(str
+               return;
        }
  
--      /* On full calibration do an AGC calibration and
--       * request a PAPD probe for gainf calibration if
--       * needed */
--      if (ah->ah_cal_mask & AR5K_CALIBRATION_FULL) {
-+      /* On full calibration request a PAPD probe for
-+       * gainf calibration if needed */
-+      if ((ah->ah_cal_mask & AR5K_CALIBRATION_FULL) &&
-+          (ah->ah_radio == AR5K_RF5111 ||
-+           ah->ah_radio == AR5K_RF5112) &&
-+          channel->hw_value != AR5K_MODE_11B)
-+              ath5k_hw_request_rfgain_probe(ah);
--              AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_AGCCTL,
--                                      AR5K_PHY_AGCCTL_CAL);
--
--              ret = ath5k_hw_register_timeout(ah, AR5K_PHY_AGCCTL,
--                      AR5K_PHY_AGCCTL_CAL | AR5K_PHY_AGCCTL_NF,
--                      0, false);
--              if (ret) {
--                      ATH5K_ERR(ah,
--                              "gain calibration timeout (%uMHz)\n",
--                              channel->center_freq);
--              }
--
--              if ((ah->ah_radio == AR5K_RF5111 ||
--                      ah->ah_radio == AR5K_RF5112)
--                      && (channel->hw_value != AR5K_MODE_11B))
--                      ath5k_hw_request_rfgain_probe(ah);
--      }
--
--      /* Update noise floor
--       * XXX: Only do this after AGC calibration */
-+      /* Update noise floor */
-       if (!(ah->ah_cal_mask & AR5K_CALIBRATION_NF))
-               ath5k_hw_update_noise_floor(ah);
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -954,6 +954,7 @@ static void ath9k_process_rssi(struct at
-       struct ath_softc *sc = hw->priv;
-       struct ath_hw *ah = common->ah;
-       int last_rssi;
-+      int rssi = rx_stats->rs_rssi;
-       if (!rx_stats->is_mybeacon ||
-           ((ah->opmode != NL80211_IFTYPE_STATION) &&
-@@ -965,13 +966,12 @@ static void ath9k_process_rssi(struct at
-       last_rssi = sc->last_rssi;
-       if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
--              rx_stats->rs_rssi = ATH_EP_RND(last_rssi,
--                                            ATH_RSSI_EP_MULTIPLIER);
--      if (rx_stats->rs_rssi < 0)
--              rx_stats->rs_rssi = 0;
-+              rssi = ATH_EP_RND(last_rssi, ATH_RSSI_EP_MULTIPLIER);
-+      if (rssi < 0)
-+              rssi = 0;
-       /* Update Beacon RSSI, this is used by ANI. */
--      ah->stats.avgbrssi = rx_stats->rs_rssi;
-+      ah->stats.avgbrssi = rssi;
- }
- /*
-@@ -1011,6 +1011,8 @@ static int ath9k_rx_skb_preprocess(struc
-       rx_status->signal = ah->noise + rx_stats->rs_rssi;
-       rx_status->antenna = rx_stats->rs_antenna;
-       rx_status->flag |= RX_FLAG_MACTIME_MPDU;
-+      if (rx_stats->rs_moreaggr)
-+              rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
-       return 0;
- }
---- a/drivers/net/wireless/ath/ath9k/beacon.c
-+++ b/drivers/net/wireless/ath/ath9k/beacon.c
-@@ -91,7 +91,7 @@ static void ath_beacon_setup(struct ath_
-       info.txpower = MAX_RATE_POWER;
-       info.keyix = ATH9K_TXKEYIX_INVALID;
-       info.keytype = ATH9K_KEY_TYPE_CLEAR;
--      info.flags = ATH9K_TXDESC_NOACK;
-+      info.flags = ATH9K_TXDESC_NOACK | ATH9K_TXDESC_INTREQ;
-       info.buf_addr[0] = bf->bf_buf_addr;
-       info.buf_len[0] = roundup(skb->len, 4);
-@@ -355,7 +355,6 @@ void ath_beacon_tasklet(unsigned long da
-       struct ath_common *common = ath9k_hw_common(ah);
-       struct ath_buf *bf = NULL;
-       struct ieee80211_vif *vif;
--      struct ath_tx_status ts;
-       bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
-       int slot;
-       u32 bfaddr, bc = 0;
-@@ -462,11 +461,6 @@ void ath_beacon_tasklet(unsigned long da
-                       ath9k_hw_txstart(ah, sc->beacon.beaconq);
-               sc->beacon.ast_be_xmit += bc;     /* XXX per-vif? */
--              if (edma) {
--                      spin_lock_bh(&sc->sc_pcu_lock);
--                      ath9k_hw_txprocdesc(ah, bf->bf_desc, (void *)&ts);
--                      spin_unlock_bh(&sc->sc_pcu_lock);
--              }
-       }
+-      ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+-                        IEEE80211_STA_BEACON_POLL);
++      __ieee80211_stop_poll(sdata);
+       mutex_lock(&local->iflist_mtx);
+       ieee80211_recalc_ps(local, -1);
+@@ -1477,7 +1491,6 @@ static void ieee80211_reset_ap_probe(str
+                 round_jiffies_up(jiffies +
+                                  IEEE80211_CONNECTION_IDLE_TIME));
+ out:
+-      ieee80211_run_deferred_scan(local);
+       mutex_unlock(&local->mtx);
  }
  
---- a/drivers/net/wireless/ath/ath9k/mac.c
-+++ b/drivers/net/wireless/ath/ath9k/mac.c
-@@ -745,7 +745,11 @@ int ath9k_hw_beaconq_setup(struct ath_hw
-       qi.tqi_aifs = 1;
-       qi.tqi_cwmin = 0;
-       qi.tqi_cwmax = 0;
--      /* NB: don't enable any interrupts */
-+
-+      if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
-+              qi.tqi_qflags = TXQ_FLAG_TXOKINT_ENABLE |
-+                              TXQ_FLAG_TXERRINT_ENABLE;
-+
-       return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi);
+@@ -2413,7 +2426,11 @@ static void ieee80211_rx_mgmt_beacon(str
+                              "to a received beacon\n", sdata->name);
+               }
+ #endif
++              mutex_lock(&local->mtx);
+               ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
++              ieee80211_run_deferred_scan(local);
++              mutex_unlock(&local->mtx);
++
+               mutex_lock(&local->iflist_mtx);
+               ieee80211_recalc_ps(local, -1);
+               mutex_unlock(&local->iflist_mtx);
+@@ -2600,8 +2617,7 @@ static void ieee80211_sta_connection_los
+       struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+       u8 frame_buf[DEAUTH_DISASSOC_LEN];
+-      ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+-                        IEEE80211_STA_BEACON_POLL);
++      ieee80211_stop_poll(sdata);
+       ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
+                              false, frame_buf);
+@@ -2879,8 +2895,7 @@ static void ieee80211_restart_sta_timer(
+       u32 flags;
+       if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+-              sdata->u.mgd.flags &= ~(IEEE80211_STA_BEACON_POLL |
+-                                      IEEE80211_STA_CONNECTION_POLL);
++              __ieee80211_stop_poll(sdata);
+               /* let's probe the connection once */
+               flags = sdata->local->hw.flags;
+@@ -2949,7 +2964,10 @@ void ieee80211_sta_restart(struct ieee80
+       if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
+               add_timer(&ifmgd->chswitch_timer);
+       ieee80211_sta_reset_beacon_monitor(sdata);
++
++      mutex_lock(&sdata->local->mtx);
+       ieee80211_restart_sta_timer(sdata);
++      mutex_unlock(&sdata->local->mtx);
  }
- EXPORT_SYMBOL(ath9k_hw_beaconq_setup);
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -118,13 +118,15 @@ void ath9k_ps_restore(struct ath_softc *
-       if (--sc->ps_usecount != 0)
-               goto unlock;
--      if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK))
-+      if (sc->ps_flags & PS_WAIT_FOR_TX_ACK)
-+              goto unlock;
-+
-+      if (sc->ps_idle)
-               mode = ATH9K_PM_FULL_SLEEP;
-       else if (sc->ps_enabled &&
-                !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
-                             PS_WAIT_FOR_CAB |
--                            PS_WAIT_FOR_PSPOLL_DATA |
--                            PS_WAIT_FOR_TX_ACK)))
-+                            PS_WAIT_FOR_PSPOLL_DATA)))
-               mode = ATH9K_PM_NETWORK_SLEEP;
-       else
-               goto unlock;
-@@ -2300,6 +2302,7 @@ static int ath9k_tx_last_beacon(struct i
-       struct ath_vif *avp;
-       struct ath_buf *bf;
-       struct ath_tx_status ts;
-+      bool edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
-       int status;
-       vif = sc->beacon.bslot[0];
-@@ -2310,7 +2313,7 @@ static int ath9k_tx_last_beacon(struct i
-       if (!avp->is_bslot_active)
-               return 0;
+ #endif
  
--      if (!sc->beacon.tx_processed) {
-+      if (!sc->beacon.tx_processed && !edma) {
-               tasklet_disable(&sc->bcon_tasklet);
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -214,6 +214,7 @@ struct ath_frame_info {
+       enum ath9k_key_type keytype;
+       u8 keyix;
+       u8 retries;
++      bool short_preamble;
+ };
  
-               bf = avp->av_bcbuf;
+ struct ath_buf_state {
 --- a/drivers/net/wireless/ath/ath9k/xmit.c
 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -2296,9 +2296,12 @@ void ath_tx_edma_tasklet(struct ath_soft
-                       break;
-               }
--              /* Skip beacon completions */
--              if (ts.qid == sc->beacon.beaconq)
-+              /* Process beacon completions separately */
-+              if (ts.qid == sc->beacon.beaconq) {
-+                      sc->beacon.tx_processed = true;
-+                      sc->beacon.tx_last = !(ts.ts_status & ATH9K_TXERR_MASK);
-                       continue;
-+              }
-               txq = &sc->tx.txq[ts.qid];
+@@ -938,6 +938,7 @@ static void ath_buf_set_rate(struct ath_
+       struct ieee80211_tx_rate *rates;
+       const struct ieee80211_rate *rate;
+       struct ieee80211_hdr *hdr;
++      struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
+       int i;
+       u8 rix = 0;
+@@ -957,8 +958,7 @@ static void ath_buf_set_rate(struct ath_
+       rate = ieee80211_get_rts_cts_rate(sc->hw, tx_info);
+       info->rtscts_rate = rate->hw_value;
+-      if (tx_info->control.vif &&
+-          tx_info->control.vif->bss_conf.use_short_preamble)
++      if (fi->short_preamble)
+               info->rtscts_rate |= rate->hw_value_short;
+       for (i = 0; i < 4; i++) {
+@@ -1779,6 +1779,11 @@ static void setup_frame_info(struct ieee
+       struct ath_frame_info *fi = get_frame_info(skb);
+       struct ath_node *an = NULL;
+       enum ath9k_key_type keytype;
++      bool short_preamble = false;
++
++      if (tx_info->control.vif &&
++          tx_info->control.vif->bss_conf.use_short_preamble)
++              short_preamble = true;
+       keytype = ath9k_cmn_get_hw_crypto_keytype(skb);
+@@ -1794,6 +1799,7 @@ static void setup_frame_info(struct ieee
+               fi->keyix = ATH9K_TXKEYIX_INVALID;
+       fi->keytype = keytype;
+       fi->framelen = framelen;
++      fi->short_preamble = short_preamble;
+ }
  
+ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)