mac80211: merge a fix for a race condition on station removal
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 300-pending_work.patch
index 93773d7ebaed18f70539f9999102607db64f961c..72a0081c1603b3a01fc2034f2e5d1eb428b5ec82 100644 (file)
@@ -1,6 +1,117 @@
+--- a/drivers/net/wireless/ath/ath9k/common.h
++++ b/drivers/net/wireless/ath/ath9k/common.h
+@@ -27,7 +27,7 @@
+ #define WME_MAX_BA              WME_BA_BMP_SIZE
+ #define ATH_TID_MAX_BUFS        (2 * WME_MAX_BA)
+-#define ATH_RSSI_DUMMY_MARKER   0x127
++#define ATH_RSSI_DUMMY_MARKER   127
+ #define ATH_RSSI_LPF_LEN              10
+ #define RSSI_LPF_THRESHOLD            -20
+ #define ATH_RSSI_EP_MULTIPLIER     (1<<7)
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+@@ -1067,15 +1067,19 @@ static bool ath9k_rx_prepare(struct ath9
+       last_rssi = priv->rx.last_rssi;
+-      if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
+-              rxbuf->rxstatus.rs_rssi = ATH_EP_RND(last_rssi,
+-                                                   ATH_RSSI_EP_MULTIPLIER);
++      if (ieee80211_is_beacon(hdr->frame_control) &&
++          !is_zero_ether_addr(common->curbssid) &&
++          ether_addr_equal(hdr->addr3, common->curbssid)) {
++              s8 rssi = rxbuf->rxstatus.rs_rssi;
+-      if (rxbuf->rxstatus.rs_rssi < 0)
+-              rxbuf->rxstatus.rs_rssi = 0;
++              if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
++                      rssi = ATH_EP_RND(last_rssi, ATH_RSSI_EP_MULTIPLIER);
+-      if (ieee80211_is_beacon(fc))
+-              priv->ah->stats.avgbrssi = rxbuf->rxstatus.rs_rssi;
++              if (rssi < 0)
++                      rssi = 0;
++
++              priv->ah->stats.avgbrssi = rssi;
++      }
+       rx_status->mactime = be64_to_cpu(rxbuf->rxstatus.rs_tstamp);
+       rx_status->band = hw->conf.channel->band;
+--- a/include/linux/ieee80211.h
++++ b/include/linux/ieee80211.h
+@@ -185,7 +185,7 @@ struct ieee80211_hdr {
+       u8 addr3[6];
+       __le16 seq_ctrl;
+       u8 addr4[6];
+-} __packed;
++} __packed __aligned(2);
+ struct ieee80211_hdr_3addr {
+       __le16 frame_control;
+@@ -194,7 +194,7 @@ struct ieee80211_hdr_3addr {
+       u8 addr2[6];
+       u8 addr3[6];
+       __le16 seq_ctrl;
+-} __packed;
++} __packed __aligned(2);
+ struct ieee80211_qos_hdr {
+       __le16 frame_control;
+@@ -204,7 +204,7 @@ struct ieee80211_qos_hdr {
+       u8 addr3[6];
+       __le16 seq_ctrl;
+       __le16 qos_ctrl;
+-} __packed;
++} __packed __aligned(2);
+ /**
+  * ieee80211_has_tods - check if IEEE80211_FCTL_TODS is set
+@@ -581,7 +581,7 @@ struct ieee80211s_hdr {
+       __le32 seqnum;
+       u8 eaddr1[6];
+       u8 eaddr2[6];
+-} __packed;
++} __packed __aligned(2);
+ /* Mesh flags */
+ #define MESH_FLAGS_AE_A4      0x1
+@@ -875,7 +875,7 @@ struct ieee80211_mgmt {
+                       } u;
+               } __packed action;
+       } u;
+-} __packed;
++} __packed __aligned(2);
+ /* Supported Rates value encodings in 802.11n-2009 7.3.2.2 */
+ #define BSS_MEMBERSHIP_SELECTOR_HT_PHY        127
+@@ -906,20 +906,20 @@ struct ieee80211_rts {
+       __le16 duration;
+       u8 ra[6];
+       u8 ta[6];
+-} __packed;
++} __packed __aligned(2);
+ struct ieee80211_cts {
+       __le16 frame_control;
+       __le16 duration;
+       u8 ra[6];
+-} __packed;
++} __packed __aligned(2);
+ struct ieee80211_pspoll {
+       __le16 frame_control;
+       __le16 aid;
+       u8 bssid[6];
+       u8 ta[6];
+-} __packed;
++} __packed __aligned(2);
+ /* TDLS */
 --- a/net/mac80211/agg-rx.c
 +++ b/net/mac80211/agg-rx.c
-@@ -187,6 +187,8 @@ static void ieee80211_send_addba_resp(st
+@@ -204,6 +204,8 @@ 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
+@@ -527,6 +528,7 @@ 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 &&
  
 --- a/net/mac80211/debugfs_sta.c
 +++ b/net/mac80211/debugfs_sta.c
-@@ -63,11 +63,11 @@ static ssize_t sta_flags_read(struct fil
+@@ -65,11 +65,11 @@ static ssize_t sta_flags_read(struct fil
        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%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_
- {
-       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+@@ -107,7 +107,7 @@ void ieee80211_recalc_idle(struct ieee80
+       lockdep_assert_held(&local->mtx);
+-      active = !list_empty(&local->chanctx_list);
++      active = !list_empty(&local->chanctx_list) || local->monitors;
+       if (!local->ops->remain_on_channel) {
+               list_for_each_entry(roc, &local->roc_list, list) {
+@@ -436,7 +436,6 @@ int ieee80211_do_open(struct wireless_de
+       struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+       struct net_device *dev = wdev->netdev;
        struct ieee80211_local *local = sdata->local;
 -      struct sta_info *sta;
        u32 changed = 0;
        int res;
        u32 hw_reconf_flags = 0;
-@@ -309,28 +308,6 @@ static int ieee80211_do_open(struct net_
+@@ -541,6 +540,9 @@ int ieee80211_do_open(struct wireless_de
+               ieee80211_adjust_monitor_flags(sdata, 1);
+               ieee80211_configure_filter(local);
++              mutex_lock(&local->mtx);
++              ieee80211_recalc_idle(local);
++              mutex_unlock(&local->mtx);
+               netif_carrier_on(dev);
+               break;
+@@ -595,30 +597,8 @@ int ieee80211_do_open(struct wireless_de
  
        set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
 -              }
 -
 -              rate_control_rate_init(sta);
+-              netif_carrier_on(dev);
+-      } else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) {
++      if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
+               rcu_assign_pointer(local->p2p_sdata, sdata);
 -      }
--
        /*
         * 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);
-@@ -720,6 +696,70 @@ static void ieee80211_if_setup(struct ne
+@@ -817,6 +797,9 @@ static void ieee80211_do_stop(struct iee
+               ieee80211_adjust_monitor_flags(sdata, -1);
+               ieee80211_configure_filter(local);
++              mutex_lock(&local->mtx);
++              ieee80211_recalc_idle(local);
++              mutex_unlock(&local->mtx);
+               break;
+       case NL80211_IFTYPE_P2P_DEVICE:
+               /* relies on synchronize_rcu() below */
+@@ -1022,6 +1005,72 @@ 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();
 +
 +
 +      if (elems.ht_cap_elem)
 +              ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
-+                              elems.ht_cap_elem, &sta->sta.ht_cap);
++                              elems.ht_cap_elem, sta);
 +
 +      if (elems.wmm_param)
 +              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 =
-@@ -824,6 +864,9 @@ static void ieee80211_iface_work(struct 
+@@ -1126,6 +1175,9 @@ 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
-@@ -2281,6 +2281,7 @@ ieee80211_rx_h_action(struct ieee80211_r
+@@ -2365,6 +2365,7 @@ 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;
  
-@@ -2491,14 +2492,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2692,14 +2693,15 @@ 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):
-@@ -2852,10 +2854,16 @@ static int prepare_for_handlers(struct i
+@@ -3028,10 +3030,16 @@ static int prepare_for_handlers(struct i
                }
                break;
        case NL80211_IFTYPE_WDS:
 -              if (bssid || !ieee80211_is_data(hdr->frame_control))
 -                      return 0;
-               if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+               if (!ether_addr_equal(sdata->u.wds.remote_addr, hdr->addr2))
                        return 0;
 +
 +              if (ieee80211_is_data(hdr->frame_control) ||
 +                      return 0;
 +
                break;
-       default:
-               /* should never get here */
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -1379,8 +1379,10 @@ int sta_info_move_state(struct sta_info 
-               return -EINVAL;
-       }
-+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-       printk(KERN_DEBUG "%s: moving STA %pM to state %d\n",
-               sta->sdata->name, sta->sta.addr, new_state);
-+#endif
-       /*
-        * notify the driver before the actual changes so it can
+       case NL80211_IFTYPE_P2P_DEVICE:
+               if (!ieee80211_is_public_action(hdr, skb->len) &&
 --- a/net/mac80211/sta_info.h
 +++ b/net/mac80211/sta_info.h
-@@ -31,7 +31,6 @@
+@@ -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 +61,6 @@ enum ieee80211_sta_info_flags {
+@@ -66,7 +65,6 @@ 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,
---- a/net/mac80211/rate.h
-+++ b/net/mac80211/rate.h
-@@ -37,7 +37,7 @@ static inline void rate_control_tx_statu
-       struct ieee80211_sta *ista = &sta->sta;
-       void *priv_sta = sta->rate_ctrl_priv;
--      if (!ref)
-+      if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
-               return;
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1231,34 +1231,40 @@ static bool ieee80211_tx_frags(struct ie
+               if (local->queue_stop_reasons[q] ||
+                   (!txpending && !skb_queue_empty(&local->pending[q]))) {
+                       if (unlikely(info->flags &
+-                                      IEEE80211_TX_INTFL_OFFCHAN_TX_OK &&
+-                                   local->queue_stop_reasons[q] &
+-                                      ~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL))) {
++                                   IEEE80211_TX_INTFL_OFFCHAN_TX_OK)) {
++                              if (local->queue_stop_reasons[q] &
++                                  ~BIT(IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL)) {
++                                      /*
++                                       * Drop off-channel frames if queues
++                                       * are stopped for any reason other
++                                       * than off-channel operation. Never
++                                       * queue them.
++                                       */
++                                      spin_unlock_irqrestore(
++                                              &local->queue_stop_reason_lock,
++                                              flags);
++                                      ieee80211_purge_tx_queue(&local->hw,
++                                                               skbs);
++                                      return true;
++                              }
++                      } else {
++
+                               /*
+-                               * Drop off-channel frames if queues are stopped
+-                               * for any reason other than off-channel
+-                               * operation. Never queue them.
++                               * Since queue is stopped, queue up frames for
++                               * later transmission from the tx-pending
++                               * tasklet when the queue is woken again.
+                                */
+-                              spin_unlock_irqrestore(
+-                                      &local->queue_stop_reason_lock, flags);
+-                              ieee80211_purge_tx_queue(&local->hw, skbs);
+-                              return true;
++                              if (txpending)
++                                      skb_queue_splice_init(skbs,
++                                                            &local->pending[q]);
++                              else
++                                      skb_queue_splice_tail_init(skbs,
++                                                                 &local->pending[q]);
++
++                              spin_unlock_irqrestore(&local->queue_stop_reason_lock,
++                                                     flags);
++                              return false;
+                       }
+-
+-                      /*
+-                       * Since queue is stopped, queue up frames for later
+-                       * transmission from the tx-pending tasklet when the
+-                       * queue is woken again.
+-                       */
+-                      if (txpending)
+-                              skb_queue_splice_init(skbs, &local->pending[q]);
+-                      else
+-                              skb_queue_splice_tail_init(skbs,
+-                                                         &local->pending[q]);
+-
+-                      spin_unlock_irqrestore(&local->queue_stop_reason_lock,
+-                                             flags);
+-                      return false;
+               }
+               spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
  
-       ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
---- a/net/mac80211/main.c
-+++ b/net/mac80211/main.c
-@@ -915,6 +915,8 @@ int ieee80211_register_hw(struct ieee802
-               wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n",
-                           result);
+@@ -1848,9 +1854,24 @@ netdev_tx_t ieee80211_subif_start_xmit(s
+               }
  
-+      ieee80211_led_init(local);
+               if (!is_multicast_ether_addr(skb->data)) {
++                      struct sta_info *next_hop;
++                      bool mpp_lookup = true;
++
+                       mpath = mesh_path_lookup(sdata, skb->data);
+-                      if (!mpath)
++                      if (mpath) {
++                              mpp_lookup = false;
++                              next_hop = rcu_dereference(mpath->next_hop);
++                              if (!next_hop ||
++                                  !(mpath->flags & (MESH_PATH_ACTIVE |
++                                                    MESH_PATH_RESOLVING)))
++                                      mpp_lookup = true;
++                      }
++
++                      if (mpp_lookup)
+                               mppath = mpp_path_lookup(sdata, skb->data);
 +
-       rtnl_lock();
++                      if (mppath && mpath)
++                              mesh_path_del(mpath->sdata, mpath->dst);
+               }
  
-       result = ieee80211_init_rate_ctrl_alg(local,
-@@ -936,8 +938,6 @@ int ieee80211_register_hw(struct ieee802
+               /*
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -554,16 +554,9 @@ static int nl80211_msg_put_channel(struc
+       if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
+           nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
+               goto nla_put_failure;
+-      if (chan->flags & IEEE80211_CHAN_RADAR) {
+-              u32 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
+-              if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
+-                      goto nla_put_failure;
+-              if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
+-                              chan->dfs_state))
+-                      goto nla_put_failure;
+-              if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time))
+-                      goto nla_put_failure;
+-      }
++      if ((chan->flags & IEEE80211_CHAN_RADAR) &&
++          nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
++              goto nla_put_failure;
+       if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
+           nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
+               goto nla_put_failure;
+@@ -900,9 +893,6 @@ static int nl80211_put_iface_combination
+                   nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
+                               c->max_interfaces))
+                       goto nla_put_failure;
+-              if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
+-                              c->radar_detect_widths))
+-                      goto nla_put_failure;
  
-       rtnl_unlock();
+               nla_nest_end(msg, nl_combi);
+       }
+@@ -914,48 +904,6 @@ nla_put_failure:
+       return -ENOBUFS;
+ }
  
--      ieee80211_led_init(local);
+-#ifdef CONFIG_PM
+-static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
+-                                      struct sk_buff *msg)
+-{
+-      const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
+-      struct nlattr *nl_tcp;
+-
+-      if (!tcp)
+-              return 0;
+-
+-      nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
+-      if (!nl_tcp)
+-              return -ENOBUFS;
+-
+-      if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
+-                      tcp->data_payload_max))
+-              return -ENOBUFS;
+-
+-      if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
+-                      tcp->data_payload_max))
+-              return -ENOBUFS;
+-
+-      if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
+-              return -ENOBUFS;
 -
-       local->network_latency_notifier.notifier_call =
-               ieee80211_max_network_latency;
-       result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY,
---- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
-+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
-@@ -489,8 +489,6 @@ static int ar5008_hw_rf_alloc_ext_banks(
-       ATH_ALLOC_BANK(ah->analogBank6Data, ah->iniBank6.ia_rows);
-       ATH_ALLOC_BANK(ah->analogBank6TPCData, ah->iniBank6TPC.ia_rows);
-       ATH_ALLOC_BANK(ah->analogBank7Data, ah->iniBank7.ia_rows);
--      ATH_ALLOC_BANK(ah->addac5416_21,
--                     ah->iniAddac.ia_rows * ah->iniAddac.ia_columns);
-       ATH_ALLOC_BANK(ah->bank6Temp, ah->iniBank6.ia_rows);
-       return 0;
-@@ -519,7 +517,6 @@ static void ar5008_hw_rf_free_ext_banks(
-       ATH_FREE_BANK(ah->analogBank6Data);
-       ATH_FREE_BANK(ah->analogBank6TPCData);
-       ATH_FREE_BANK(ah->analogBank7Data);
--      ATH_FREE_BANK(ah->addac5416_21);
-       ATH_FREE_BANK(ah->bank6Temp);
- #undef ATH_FREE_BANK
-@@ -805,27 +802,7 @@ static int ar5008_hw_process_ini(struct 
-       if (ah->eep_ops->set_addac)
-               ah->eep_ops->set_addac(ah, chan);
--      if (AR_SREV_5416_22_OR_LATER(ah)) {
--              REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
--      } else {
--              struct ar5416IniArray temp;
--              u32 addacSize =
--                      sizeof(u32) * ah->iniAddac.ia_rows *
--                      ah->iniAddac.ia_columns;
+-      if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
+-                              sizeof(*tcp->tok), tcp->tok))
+-              return -ENOBUFS;
 -
--              /* For AR5416 2.0/2.1 */
--              memcpy(ah->addac5416_21,
--                     ah->iniAddac.ia_array, addacSize);
+-      if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
+-                      tcp->data_interval_max))
+-              return -ENOBUFS;
 -
--              /* override CLKDRV value at [row, column] = [31, 1] */
--              (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
+-      if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
+-                      tcp->wake_payload_max))
+-              return -ENOBUFS;
 -
--              temp.ia_array = ah->addac5416_21;
--              temp.ia_columns = ah->iniAddac.ia_columns;
--              temp.ia_rows = ah->iniAddac.ia_rows;
--              REG_WRITE_ARRAY(&temp, 1, regWrites);
+-      nla_nest_end(msg, nl_tcp);
+-      return 0;
+-}
+-#endif
+-
+ static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
+                             struct cfg80211_registered_device *dev)
+ {
+@@ -1330,9 +1278,6 @@ static int nl80211_send_wiphy(struct sk_
+                               goto nla_put_failure;
+               }
+-              if (nl80211_send_wowlan_tcp_caps(dev, msg))
+-                      goto nla_put_failure;
+-
+               nla_nest_end(msg, nl_wowlan);
+       }
+ #endif
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -3285,13 +3285,19 @@ static int ieee80211_cfg_get_channel(str
+                                    struct cfg80211_chan_def *chandef)
+ {
+       struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
++      struct ieee80211_local *local = wiphy_priv(wiphy);
+       struct ieee80211_chanctx_conf *chanctx_conf;
+       int ret = -ENODATA;
+       rcu_read_lock();
+-      chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+-      if (chanctx_conf) {
+-              *chandef = chanctx_conf->def;
++      if (local->use_chanctx) {
++              chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
++              if (chanctx_conf) {
++                      *chandef = chanctx_conf->def;
++                      ret = 0;
++              }
++      } else if (local->open_count == local->monitors) {
++              *chandef = local->monitor_chandef;
+               ret = 0;
+       }
+       rcu_read_unlock();
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1463,7 +1463,9 @@ static bool ath9k_hw_chip_reset(struct a
+                       reset_type = ATH9K_RESET_POWER_ON;
+               else
+                       reset_type = ATH9K_RESET_COLD;
 -      }
++      } else if (ah->chip_fullsleep || REG_READ(ah, AR_Q_TXE) ||
++                 (REG_READ(ah, AR_CR) & AR_CR_RXE))
++              reset_type = ATH9K_RESET_COLD;
+       if (!ath9k_hw_set_reset_reg(ah, reset_type))
+               return false;
+--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
+@@ -1236,8 +1236,10 @@ static inline void rt2x00lib_set_if_comb
+        */
+       if_limit = &rt2x00dev->if_limits_ap;
+       if_limit->max = rt2x00dev->ops->max_ap_intf;
+-      if_limit->types = BIT(NL80211_IFTYPE_AP) |
+-                      BIT(NL80211_IFTYPE_MESH_POINT);
++      if_limit->types = BIT(NL80211_IFTYPE_AP);
++#ifdef CONFIG_MAC80211_MESH
++      if_limit->types |= BIT(NL80211_IFTYPE_MESH_POINT);
++#endif
+       /*
+        * Build up AP interface combinations structure.
+@@ -1309,7 +1311,9 @@ int rt2x00lib_probe_dev(struct rt2x00_de
+               rt2x00dev->hw->wiphy->interface_modes |=
+                   BIT(NL80211_IFTYPE_ADHOC) |
+                   BIT(NL80211_IFTYPE_AP) |
++#ifdef CONFIG_MAC80211_MESH
+                   BIT(NL80211_IFTYPE_MESH_POINT) |
++#endif
+                   BIT(NL80211_IFTYPE_WDS);
+       rt2x00dev->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
+--- a/net/mac80211/rc80211_minstrel_ht.c
++++ b/net/mac80211/rc80211_minstrel_ht.c
+@@ -26,11 +26,11 @@
+ /* Number of symbols for a packet with (bps) bits per symbol */
+ #define MCS_NSYMS(bps) ((MCS_NBITS + (bps) - 1) / (bps))
+-/* Transmission time for a packet containing (syms) symbols */
++/* Transmission time (nanoseconds) for a packet containing (syms) symbols */
+ #define MCS_SYMBOL_TIME(sgi, syms)                                    \
+       (sgi ?                                                          \
+-        ((syms) * 18 + 4) / 5 :       /* syms * 3.6 us */             \
+-        (syms) << 2                   /* syms * 4 us */               \
++        ((syms) * 18000 + 4000) / 5 : /* syms * 3.6 us */             \
++        ((syms) * 1000) << 2          /* syms * 4 us */               \
+       )
+ /* Transmit duration for the raw data part of an average sized packet */
+@@ -64,9 +64,9 @@
+ }
+ #define CCK_DURATION(_bitrate, _short, _len)          \
+-      (10 /* SIFS */ +                                \
++      (1000 * (10 /* SIFS */ +                        \
+        (_short ? 72 + 24 : 144 + 48 ) +               \
+-       (8 * (_len + 4) * 10) / (_bitrate))
++       (8 * (_len + 4) * 10) / (_bitrate)))
+ #define CCK_ACK_DURATION(_bitrate, _short)                    \
+       (CCK_DURATION((_bitrate > 10 ? 20 : 10), false, 60) +   \
+@@ -211,7 +211,8 @@ static void
+ minstrel_ht_calc_tp(struct minstrel_ht_sta *mi, int group, int rate)
+ {
+       struct minstrel_rate_stats *mr;
+-      unsigned int usecs = 0;
++      unsigned int nsecs = 0;
++      unsigned int tp;
+       mr = &mi->groups[group].rates[rate];
+@@ -221,10 +222,12 @@ minstrel_ht_calc_tp(struct minstrel_ht_s
+       }
+       if (group != MINSTREL_CCK_GROUP)
+-              usecs = mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);
++              nsecs = 1000 * mi->overhead / MINSTREL_TRUNC(mi->avg_ampdu_len);
+-      usecs += minstrel_mcs_groups[group].duration[rate];
+-      mr->cur_tp = MINSTREL_TRUNC((1000000 / usecs) * mr->probability);
++      nsecs += minstrel_mcs_groups[group].duration[rate];
++      tp = 1000000 * ((mr->probability * 1000) / nsecs);
++
++      mr->cur_tp = MINSTREL_TRUNC(tp);
+ }
+ /*
+@@ -308,8 +311,8 @@ minstrel_ht_update_stats(struct minstrel
+               }
+       }
+-      /* try to sample up to half of the available rates during each interval */
+-      mi->sample_count *= 4;
++      /* try to sample all available rates during each interval */
++      mi->sample_count *= 8;
+       cur_prob = 0;
+       cur_prob_tp = 0;
+@@ -320,20 +323,13 @@ minstrel_ht_update_stats(struct minstrel
+               if (!mg->supported)
+                       continue;
+-              mr = minstrel_get_ratestats(mi, mg->max_prob_rate);
+-              if (cur_prob_tp < mr->cur_tp &&
+-                  minstrel_mcs_groups[group].streams == 1) {
+-                      mi->max_prob_rate = mg->max_prob_rate;
+-                      cur_prob = mr->cur_prob;
+-                      cur_prob_tp = mr->cur_tp;
+-              }
 -
-+      REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
-       REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
-       ENABLE_REGWRITE_BUFFER(ah);
---- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
-@@ -180,6 +180,25 @@ static void ar9002_hw_init_mode_regs(str
-               INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac,
-                              ARRAY_SIZE(ar5416Addac), 2);
+               mr = minstrel_get_ratestats(mi, mg->max_tp_rate);
+               if (cur_tp < mr->cur_tp) {
+                       mi->max_tp_rate2 = mi->max_tp_rate;
+                       cur_tp2 = cur_tp;
+                       mi->max_tp_rate = mg->max_tp_rate;
+                       cur_tp = mr->cur_tp;
++                      mi->max_prob_streams = minstrel_mcs_groups[group].streams - 1;
+               }
+               mr = minstrel_get_ratestats(mi, mg->max_tp_rate2);
+@@ -343,6 +339,23 @@ minstrel_ht_update_stats(struct minstrel
+               }
        }
++      if (mi->max_prob_streams < 1)
++              mi->max_prob_streams = 1;
 +
-+      /* iniAddac needs to be modified for these chips */
-+      if (AR_SREV_9160(ah) || !AR_SREV_5416_22_OR_LATER(ah)) {
-+              struct ar5416IniArray *addac = &ah->iniAddac;
-+              u32 size = sizeof(u32) * addac->ia_rows * addac->ia_columns;
-+              u32 *data;
++      for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) {
++              mg = &mi->groups[group];
++              if (!mg->supported)
++                      continue;
++              mr = minstrel_get_ratestats(mi, mg->max_prob_rate);
++              if (cur_prob_tp < mr->cur_tp &&
++                  minstrel_mcs_groups[group].streams <= mi->max_prob_streams) {
++                      mi->max_prob_rate = mg->max_prob_rate;
++                      cur_prob = mr->cur_prob;
++                      cur_prob_tp = mr->cur_tp;
++              }
++      }
 +
-+              data = kmalloc(size, GFP_KERNEL);
-+              if (!data)
-+                      return;
 +
-+              memcpy(data, addac->ia_array, size);
-+              addac->ia_array = data;
+       mi->stats_update = jiffies;
+ }
+@@ -467,7 +480,7 @@ minstrel_ht_tx_status(void *priv, struct
+       if (!mi->sample_wait && !mi->sample_tries && mi->sample_count > 0) {
+               mi->sample_wait = 16 + 2 * MINSTREL_TRUNC(mi->avg_ampdu_len);
+-              mi->sample_tries = 2;
++              mi->sample_tries = 1;
+               mi->sample_count--;
+       }
+@@ -536,7 +549,7 @@ minstrel_calc_retransmit(struct minstrel
+       mr->retry_updated = true;
+       group = &minstrel_mcs_groups[index / MCS_GROUP_RATES];
+-      tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len;
++      tx_time_data = group->duration[index % MCS_GROUP_RATES] * ampdu_len / 1000;
+       /* Contention time for first 2 tries */
+       ctime = (t_slot * cw) >> 1;
+@@ -616,6 +629,7 @@ minstrel_get_sample_rate(struct minstrel
+ {
+       struct minstrel_rate_stats *mr;
+       struct minstrel_mcs_group_data *mg;
++      unsigned int sample_dur, sample_group;
+       int sample_idx = 0;
+       if (mi->sample_wait > 0) {
+@@ -626,11 +640,11 @@ minstrel_get_sample_rate(struct minstrel
+       if (!mi->sample_tries)
+               return -1;
+-      mi->sample_tries--;
+       mg = &mi->groups[mi->sample_group];
+       sample_idx = sample_table[mg->column][mg->index];
+       mr = &mg->rates[sample_idx];
+-      sample_idx += mi->sample_group * MCS_GROUP_RATES;
++      sample_group = mi->sample_group;
++      sample_idx += sample_group * MCS_GROUP_RATES;
+       minstrel_next_sample_idx(mi);
+       /*
+@@ -651,14 +665,18 @@ minstrel_get_sample_rate(struct minstrel
+        * Make sure that lower rates get sampled only occasionally,
+        * if the link is working perfectly.
+        */
+-      if (minstrel_get_duration(sample_idx) >
+-          minstrel_get_duration(mi->max_tp_rate)) {
++      sample_dur = minstrel_get_duration(sample_idx);
++      if (sample_dur >= minstrel_get_duration(mi->max_tp_rate2) &&
++          (mi->max_prob_streams <
++           minstrel_mcs_groups[sample_group].streams ||
++           sample_dur >= minstrel_get_duration(mi->max_prob_rate))) {
+               if (mr->sample_skipped < 20)
+                       return -1;
+               if (mi->sample_slow++ > 2)
+                       return -1;
+       }
++      mi->sample_tries--;
+       return sample_idx;
+ }
+--- a/net/mac80211/rc80211_minstrel_ht.h
++++ b/net/mac80211/rc80211_minstrel_ht.h
+@@ -85,6 +85,7 @@ struct minstrel_ht_sta {
+       /* best probability rate */
+       unsigned int max_prob_rate;
++      unsigned int max_prob_streams;
+       /* time of last status update */
+       unsigned long stats_update;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -1023,6 +1023,7 @@ static bool ar9003_hw_init_cal(struct at
+                                         AR_PHY_AGC_CONTROL_FLTR_CAL   |
+                                         AR_PHY_AGC_CONTROL_PKDET_CAL;
++      /* Use chip chainmask only for calibration */
+       ar9003_hw_set_chain_masks(ah, ah->caps.rx_chainmask, ah->caps.tx_chainmask);
+       if (rtt) {
+@@ -1150,6 +1151,9 @@ skip_tx_iqcal:
+               ar9003_hw_rtt_disable(ah);
+       }
++      /* Revert chainmask to runtime parameters */
++      ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
 +
-+              if (!AR_SREV_5416_22_OR_LATER(ah)) {
-+                      /* override CLKDRV value */
-+                      INI_RA(addac, 31,1) = 0;
-+              }
+       /* Initialize list pointers */
+       ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+@@ -3606,6 +3606,12 @@ static void ar9003_hw_ant_ctrl_apply(str
+       value = ar9003_hw_ant_ctrl_common_2_get(ah, is2ghz);
+       REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM_2, AR_SWITCH_TABLE_COM2_ALL, value);
++      if ((AR_SREV_9462(ah)) && (ah->rxchainmask == 0x2)) {
++              value = ar9003_hw_ant_ctrl_chain_get(ah, 1, is2ghz);
++              REG_RMW_FIELD(ah, switch_chain_reg[0],
++                            AR_SWITCH_TABLE_ALL, value);
 +      }
- }
++
+       for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
+               if ((ah->rxchainmask & BIT(chain)) ||
+                   (ah->txchainmask & BIT(chain))) {
+@@ -3772,6 +3778,17 @@ static void ar9003_hw_atten_apply(struct
+                                         AR_PHY_EXT_ATTEN_CTL_2,
+                                        };
++      if ((AR_SREV_9462(ah)) && (ah->rxchainmask == 0x2)) {
++              value = ar9003_hw_atten_chain_get(ah, 1, chan);
++              REG_RMW_FIELD(ah, ext_atten_reg[0],
++                            AR_PHY_EXT_ATTEN_CTL_XATTEN1_DB, value);
++
++              value = ar9003_hw_atten_chain_get_margin(ah, 1, chan);
++              REG_RMW_FIELD(ah, ext_atten_reg[0],
++                            AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN,
++                            value);
++      }
++
+       /* Test value. if 0 then attenuation is unused. Don't load anything. */
+       for (i = 0; i < 3; i++) {
+               if (ah->txchainmask & BIT(i)) {
+--- a/drivers/net/wireless/ath/ath9k/link.c
++++ b/drivers/net/wireless/ath/ath9k/link.c
+@@ -28,21 +28,21 @@ void ath_tx_complete_poll_work(struct wo
+       int i;
+       bool needreset = false;
+-      for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
+-              if (ATH_TXQ_SETUP(sc, i)) {
+-                      txq = &sc->tx.txq[i];
+-                      ath_txq_lock(sc, txq);
+-                      if (txq->axq_depth) {
+-                              if (txq->axq_tx_inprogress) {
+-                                      needreset = true;
+-                                      ath_txq_unlock(sc, txq);
+-                                      break;
+-                              } else {
+-                                      txq->axq_tx_inprogress = true;
+-                              }
++      for (i = 0; i < IEEE80211_NUM_ACS; i++) {
++              txq = sc->tx.txq_map[i];
++
++              ath_txq_lock(sc, txq);
++              if (txq->axq_depth) {
++                      if (txq->axq_tx_inprogress) {
++                              needreset = true;
++                              ath_txq_unlock(sc, txq);
++                              break;
++                      } else {
++                              txq->axq_tx_inprogress = true;
+                       }
+-                      ath_txq_unlock_complete(sc, txq);
+               }
++              ath_txq_unlock_complete(sc, txq);
++      }
+       if (needreset) {
+               ath_dbg(ath9k_hw_common(sc->sc_ah), RESET,
+--- a/net/mac80211/sta_info.c
++++ b/net/mac80211/sta_info.c
+@@ -766,6 +766,7 @@ int __must_check __sta_info_destroy(stru
+       struct ieee80211_local *local;
+       struct ieee80211_sub_if_data *sdata;
+       int ret, i;
++      bool have_key = false;
+       might_sleep();
+@@ -793,12 +794,19 @@ int __must_check __sta_info_destroy(stru
+       list_del_rcu(&sta->list);
+       mutex_lock(&local->key_mtx);
+-      for (i = 0; i < NUM_DEFAULT_KEYS; i++)
++      for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+               __ieee80211_key_free(key_mtx_dereference(local, sta->gtk[i]));
+-      if (sta->ptk)
++              have_key = true;
++      }
++      if (sta->ptk) {
+               __ieee80211_key_free(key_mtx_dereference(local, sta->ptk));
++              have_key = true;
++      }
+       mutex_unlock(&local->key_mtx);
++      if (!have_key)
++              synchronize_net();
++
+       sta->dead = true;
  
- /* Support for Japan ch.14 (2484) spread */
---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -940,7 +940,6 @@ struct ath_hw {
-       u32 *analogBank6Data;
-       u32 *analogBank6TPCData;
-       u32 *analogBank7Data;
--      u32 *addac5416_21;
-       u32 *bank6Temp;
-       u8 txpower_limit;
+       local->num_sta--;