mac80211: fix channel context related warnings when using wds ap mode (fixes #12585)
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 300-pending_work.patch
index e4544938f509689d0c4325a10589adeff3487694..9905a57d54bde6e0e901ef8b84d8b4c49f1ce588 100644 (file)
@@ -1,14 +1,52 @@
---- a/drivers/net/wireless/ath/ath5k/base.c
-+++ b/drivers/net/wireless/ath/ath5k/base.c
-@@ -325,6 +325,8 @@ ath5k_setup_channels(struct ath5k_hw *ah
-               if (!ath5k_is_standard_channel(ch, band))
-                       continue;
+--- a/drivers/net/wireless/rt2x00/rt2800lib.c
++++ b/drivers/net/wireless/rt2x00/rt2800lib.c
+@@ -5090,7 +5090,8 @@ static int rt2800_probe_hw_mode(struct r
+           IEEE80211_HW_SUPPORTS_PS |
+           IEEE80211_HW_PS_NULLFUNC_STACK |
+           IEEE80211_HW_AMPDU_AGGREGATION |
+-          IEEE80211_HW_REPORTS_TX_ACK_STATUS;
++          IEEE80211_HW_REPORTS_TX_ACK_STATUS |
++          IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL;
  
-+              channels[count].max_power = AR5K_TUNE_MAX_TXPOWER/2;
+       /*
+        * Don't set IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING for USB devices
+--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
+@@ -392,10 +392,9 @@ void rt2x00lib_txdone(struct queue_entry
+               tx_info->flags |= IEEE80211_TX_STAT_AMPDU;
+               tx_info->status.ampdu_len = 1;
+               tx_info->status.ampdu_ack_len = success ? 1 : 0;
+-              /*
+-               * TODO: Need to tear down BA session here
+-               * if not successful.
+-               */
 +
-               count++;
++              if (!success)
++                      tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
        }
  
+       if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -1369,6 +1369,10 @@ struct ieee80211_tx_control {
+  * @IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF: Use the P2P Device address for any
+  *    P2P Interface. This will be honoured even if more than one interface
+  *    is supported.
++ *
++ * @IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL: On this hardware TX BA session
++ *    should be tear down once BAR frame will not be acked.
++ *
+  */
+ enum ieee80211_hw_flags {
+       IEEE80211_HW_HAS_RATE_CONTROL                   = 1<<0,
+@@ -1397,6 +1401,7 @@ enum ieee80211_hw_flags {
+       IEEE80211_HW_TX_AMPDU_SETUP_IN_HW               = 1<<23,
+       IEEE80211_HW_SCAN_WHILE_IDLE                    = 1<<24,
+       IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF              = 1<<25,
++      IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL          = 1<<26,
+ };
+ /**
 --- a/net/mac80211/agg-rx.c
 +++ b/net/mac80211/agg-rx.c
 @@ -203,6 +203,8 @@ static void ieee80211_send_addba_resp(st
            sdata->vif.type != NL80211_IFTYPE_ADHOC)
                return -EINVAL;
  
-@@ -869,7 +871,7 @@ void ieee80211_process_addba_resp(struct
-       } else {
-               ___ieee80211_stop_tx_ba_session(sta, tid, WLAN_BACK_INITIATOR,
--                                              true);
-+                                              false);
-       }
-  out:
 --- 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),
                            TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
                            TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
                            TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
+--- a/net/mac80211/ibss.c
++++ b/net/mac80211/ibss.c
+@@ -201,6 +201,20 @@ static void __ieee80211_sta_join_ibss(st
+       bss_change |= BSS_CHANGED_BASIC_RATES;
+       bss_change |= BSS_CHANGED_HT;
+       bss_change |= BSS_CHANGED_IBSS;
++
++      /*
++       * In 5 GHz/802.11a, we can always use short slot time.
++       * (IEEE 802.11-2012 18.3.8.7)
++       *
++       * In 2.4GHz, we must always use long slots in IBSS for compatibility
++       * reasons.
++       * (IEEE 802.11-2012 19.4.5)
++       *
++       * HT follows these specifications (IEEE 802.11-2012 20.3.18)
++       */
++      sdata->vif.bss_conf.use_short_slot = chan->band == IEEE80211_BAND_5GHZ;
++      bss_change |= BSS_CHANGED_ERP_SLOT;
++
+       sdata->vif.bss_conf.ibss_joined = true;
+       sdata->vif.bss_conf.ibss_creator = creator;
+       ieee80211_bss_info_change_notify(sdata, bss_change);
 --- a/net/mac80211/iface.c
 +++ b/net/mac80211/iface.c
-@@ -420,7 +420,6 @@ int ieee80211_do_open(struct wireless_de
+@@ -508,9 +508,9 @@ static void ieee80211_del_virtual_monito
+ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
+ {
        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
++      struct ieee80211_sub_if_data *ap_sdata;
        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;
-@@ -575,30 +574,8 @@ int ieee80211_do_open(struct wireless_de
+@@ -587,10 +587,14 @@ int ieee80211_do_open(struct wireless_de
+       switch (sdata->vif.type) {
+       case NL80211_IFTYPE_AP_VLAN:
+               /* no need to tell driver, but set carrier */
+-              if (rtnl_dereference(sdata->bss->beacon))
+-                      netif_carrier_on(dev);
+-              else
++              if (!rtnl_dereference(sdata->bss->beacon)) {
+                       netif_carrier_off(dev);
++                      break;
++              }
++
++              ap_sdata = get_bss_sdata(sdata);
++              ieee80211_vif_copy_channel(sdata, ap_sdata);
++              netif_carrier_on(dev);
+               break;
+       case NL80211_IFTYPE_MONITOR:
+               if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
+@@ -665,30 +669,8 @@ int ieee80211_do_open(struct wireless_de
  
        set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
  
        /*
         * set_multicast_list will be invoked by the networking core
-@@ -997,6 +974,72 @@ static void ieee80211_if_setup(struct ne
+@@ -844,6 +826,8 @@ static void ieee80211_do_stop(struct iee
+       switch (sdata->vif.type) {
+       case NL80211_IFTYPE_AP_VLAN:
+               list_del(&sdata->u.vlan.list);
++              netif_carrier_off(sdata->dev);
++              ieee80211_vif_release_channel(sdata);
+               /* no need to tell driver */
+               break;
+       case NL80211_IFTYPE_MONITOR:
+@@ -1072,6 +1056,72 @@ static void ieee80211_if_setup(struct ne
        dev->destructor = free_netdev;
  }
  
  static void ieee80211_iface_work(struct work_struct *work)
  {
        struct ieee80211_sub_if_data *sdata =
-@@ -1101,6 +1144,9 @@ static void ieee80211_iface_work(struct 
+@@ -1176,6 +1226,9 @@ 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
-@@ -2279,6 +2279,7 @@ ieee80211_rx_h_action(struct ieee80211_r
+@@ -378,9 +378,6 @@ ieee80211_rx_monitor(struct ieee80211_lo
+        * the SKB because it has a bad FCS/PLCP checksum.
+        */
+-      /* room for the radiotap header based on driver features */
+-      needed_headroom = ieee80211_rx_radiotap_space(local, status);
+-
+       if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
+               present_fcs_len = FCS_LEN;
+@@ -399,6 +396,9 @@ ieee80211_rx_monitor(struct ieee80211_lo
+               return remove_monitor_info(local, origskb);
+       }
++      /* room for the radiotap header based on driver features */
++      needed_headroom = ieee80211_rx_radiotap_space(local, status);
++
+       if (should_drop_frame(origskb, present_fcs_len)) {
+               /* only need to expand headroom if necessary */
+               skb = origskb;
+@@ -2333,7 +2333,8 @@ ieee80211_rx_h_action(struct ieee80211_r
+       if (len < IEEE80211_MIN_ACTION_SIZE)
+               return RX_DROP_UNUSABLE;
+-      if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
++      if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
++          mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED)
+               return RX_DROP_UNUSABLE;
+       if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
+@@ -2349,6 +2350,7 @@ 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;
  
-@@ -2496,14 +2497,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2625,14 +2627,15 @@ 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):
-@@ -2827,10 +2829,16 @@ static int prepare_for_handlers(struct i
+@@ -2957,10 +2960,16 @@ static int prepare_for_handlers(struct i
                }
                break;
        case NL80211_IFTYPE_WDS:
        WLAN_STA_BLOCK_BA,
 --- a/net/mac80211/status.c
 +++ b/net/mac80211/status.c
-@@ -517,29 +517,41 @@ void ieee80211_tx_status(struct ieee8021
+@@ -502,7 +502,11 @@ void ieee80211_tx_status(struct ieee8021
+                                      IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
+                                     IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
  
-       if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) {
-               u64 cookie = (unsigned long)skb;
-+              bool found = false;
-+
-               acked = info->flags & IEEE80211_TX_STAT_ACK;
--              if (ieee80211_is_nullfunc(hdr->frame_control) ||
--                  ieee80211_is_qos_nullfunc(hdr->frame_control)) {
--                      cfg80211_probe_status(skb->dev, hdr->addr1,
--                                            cookie, acked, GFP_ATOMIC);
--              } else if (skb->dev) {
--                      cfg80211_mgmt_tx_status(
--                              skb->dev->ieee80211_ptr, cookie, skb->data,
--                              skb->len, acked, GFP_ATOMIC);
--              } else {
--                      struct ieee80211_sub_if_data *p2p_sdata;
-+              rcu_read_lock();
--                      rcu_read_lock();
-+              list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-+                      if (!sdata->dev)
-+                              continue;
--                      p2p_sdata = rcu_dereference(local->p2p_sdata);
--                      if (p2p_sdata) {
--                              cfg80211_mgmt_tx_status(
--                                      &p2p_sdata->wdev, cookie, skb->data,
--                                      skb->len, acked, GFP_ATOMIC);
--                      }
--                      rcu_read_unlock();
-+                      if (skb->dev != sdata->dev)
-+                              continue;
-+
-+                      found = true;
-+                      break;
+-                              ieee80211_set_bar_pending(sta, tid, ssn);
++                              if (local->hw.flags &
++                                  IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAIL)
++                                      ieee80211_stop_tx_ba_session(&sta->sta, tid);
++                              else
++                                      ieee80211_set_bar_pending(sta, tid, ssn);
+                       }
                }
+--- a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
++++ b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
+@@ -534,98 +534,98 @@ static const u32 ar9300_2p2_baseband_cor
+ static const u32 ar9300Modes_high_power_tx_gain_table_2p2[][5] = {
+       /* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+-      {0x0000a2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352},
+-      {0x0000a2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584},
+-      {0x0000a2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800},
++      {0x0000a2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
++      {0x0000a2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
++      {0x0000a2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
+       {0x0000a2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+-      {0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
+-      {0x0000a500, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+-      {0x0000a504, 0x06000003, 0x06000003, 0x04000002, 0x04000002},
+-      {0x0000a508, 0x0a000020, 0x0a000020, 0x08000004, 0x08000004},
+-      {0x0000a50c, 0x10000023, 0x10000023, 0x0b000200, 0x0b000200},
+-      {0x0000a510, 0x16000220, 0x16000220, 0x0f000202, 0x0f000202},
+-      {0x0000a514, 0x1c000223, 0x1c000223, 0x12000400, 0x12000400},
+-      {0x0000a518, 0x21002220, 0x21002220, 0x16000402, 0x16000402},
+-      {0x0000a51c, 0x27002223, 0x27002223, 0x19000404, 0x19000404},
+-      {0x0000a520, 0x2b022220, 0x2b022220, 0x1c000603, 0x1c000603},
+-      {0x0000a524, 0x2f022222, 0x2f022222, 0x21000a02, 0x21000a02},
+-      {0x0000a528, 0x34022225, 0x34022225, 0x25000a04, 0x25000a04},
+-      {0x0000a52c, 0x3a02222a, 0x3a02222a, 0x28000a20, 0x28000a20},
+-      {0x0000a530, 0x3e02222c, 0x3e02222c, 0x2c000e20, 0x2c000e20},
+-      {0x0000a534, 0x4202242a, 0x4202242a, 0x30000e22, 0x30000e22},
+-      {0x0000a538, 0x4702244a, 0x4702244a, 0x34000e24, 0x34000e24},
+-      {0x0000a53c, 0x4b02244c, 0x4b02244c, 0x38001640, 0x38001640},
+-      {0x0000a540, 0x4e02246c, 0x4e02246c, 0x3c001660, 0x3c001660},
+-      {0x0000a544, 0x52022470, 0x52022470, 0x3f001861, 0x3f001861},
+-      {0x0000a548, 0x55022490, 0x55022490, 0x43001a81, 0x43001a81},
+-      {0x0000a54c, 0x59022492, 0x59022492, 0x47001a83, 0x47001a83},
+-      {0x0000a550, 0x5d022692, 0x5d022692, 0x4a001c84, 0x4a001c84},
+-      {0x0000a554, 0x61022892, 0x61022892, 0x4e001ce3, 0x4e001ce3},
+-      {0x0000a558, 0x65024890, 0x65024890, 0x52001ce5, 0x52001ce5},
+-      {0x0000a55c, 0x69024892, 0x69024892, 0x56001ce9, 0x56001ce9},
+-      {0x0000a560, 0x6e024c92, 0x6e024c92, 0x5a001ceb, 0x5a001ceb},
+-      {0x0000a564, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a568, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a56c, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a570, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a574, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a578, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a57c, 0x74026e92, 0x74026e92, 0x5d001eec, 0x5d001eec},
+-      {0x0000a580, 0x00800000, 0x00800000, 0x00800000, 0x00800000},
+-      {0x0000a584, 0x06800003, 0x06800003, 0x04800002, 0x04800002},
+-      {0x0000a588, 0x0a800020, 0x0a800020, 0x08800004, 0x08800004},
+-      {0x0000a58c, 0x10800023, 0x10800023, 0x0b800200, 0x0b800200},
+-      {0x0000a590, 0x16800220, 0x16800220, 0x0f800202, 0x0f800202},
+-      {0x0000a594, 0x1c800223, 0x1c800223, 0x12800400, 0x12800400},
+-      {0x0000a598, 0x21802220, 0x21802220, 0x16800402, 0x16800402},
+-      {0x0000a59c, 0x27802223, 0x27802223, 0x19800404, 0x19800404},
+-      {0x0000a5a0, 0x2b822220, 0x2b822220, 0x1c800603, 0x1c800603},
+-      {0x0000a5a4, 0x2f822222, 0x2f822222, 0x21800a02, 0x21800a02},
+-      {0x0000a5a8, 0x34822225, 0x34822225, 0x25800a04, 0x25800a04},
+-      {0x0000a5ac, 0x3a82222a, 0x3a82222a, 0x28800a20, 0x28800a20},
+-      {0x0000a5b0, 0x3e82222c, 0x3e82222c, 0x2c800e20, 0x2c800e20},
+-      {0x0000a5b4, 0x4282242a, 0x4282242a, 0x30800e22, 0x30800e22},
+-      {0x0000a5b8, 0x4782244a, 0x4782244a, 0x34800e24, 0x34800e24},
+-      {0x0000a5bc, 0x4b82244c, 0x4b82244c, 0x38801640, 0x38801640},
+-      {0x0000a5c0, 0x4e82246c, 0x4e82246c, 0x3c801660, 0x3c801660},
+-      {0x0000a5c4, 0x52822470, 0x52822470, 0x3f801861, 0x3f801861},
+-      {0x0000a5c8, 0x55822490, 0x55822490, 0x43801a81, 0x43801a81},
+-      {0x0000a5cc, 0x59822492, 0x59822492, 0x47801a83, 0x47801a83},
+-      {0x0000a5d0, 0x5d822692, 0x5d822692, 0x4a801c84, 0x4a801c84},
+-      {0x0000a5d4, 0x61822892, 0x61822892, 0x4e801ce3, 0x4e801ce3},
+-      {0x0000a5d8, 0x65824890, 0x65824890, 0x52801ce5, 0x52801ce5},
+-      {0x0000a5dc, 0x69824892, 0x69824892, 0x56801ce9, 0x56801ce9},
+-      {0x0000a5e0, 0x6e824c92, 0x6e824c92, 0x5a801ceb, 0x5a801ceb},
+-      {0x0000a5e4, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+-      {0x0000a5e8, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+-      {0x0000a5ec, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+-      {0x0000a5f0, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+-      {0x0000a5f4, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+-      {0x0000a5f8, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
+-      {0x0000a5fc, 0x74826e92, 0x74826e92, 0x5d801eec, 0x5d801eec},
++      {0x0000a410, 0x000050d8, 0x000050d8, 0x000050d9, 0x000050d9},
++      {0x0000a500, 0x00002220, 0x00002220, 0x00000000, 0x00000000},
++      {0x0000a504, 0x04002222, 0x04002222, 0x04000002, 0x04000002},
++      {0x0000a508, 0x09002421, 0x09002421, 0x08000004, 0x08000004},
++      {0x0000a50c, 0x0d002621, 0x0d002621, 0x0b000200, 0x0b000200},
++      {0x0000a510, 0x13004620, 0x13004620, 0x0f000202, 0x0f000202},
++      {0x0000a514, 0x19004a20, 0x19004a20, 0x11000400, 0x11000400},
++      {0x0000a518, 0x1d004e20, 0x1d004e20, 0x15000402, 0x15000402},
++      {0x0000a51c, 0x21005420, 0x21005420, 0x19000404, 0x19000404},
++      {0x0000a520, 0x26005e20, 0x26005e20, 0x1b000603, 0x1b000603},
++      {0x0000a524, 0x2b005e40, 0x2b005e40, 0x1f000a02, 0x1f000a02},
++      {0x0000a528, 0x2f005e42, 0x2f005e42, 0x23000a04, 0x23000a04},
++      {0x0000a52c, 0x33005e44, 0x33005e44, 0x26000a20, 0x26000a20},
++      {0x0000a530, 0x38005e65, 0x38005e65, 0x2a000e20, 0x2a000e20},
++      {0x0000a534, 0x3c005e69, 0x3c005e69, 0x2e000e22, 0x2e000e22},
++      {0x0000a538, 0x40005e6b, 0x40005e6b, 0x31000e24, 0x31000e24},
++      {0x0000a53c, 0x44005e6d, 0x44005e6d, 0x34001640, 0x34001640},
++      {0x0000a540, 0x49005e72, 0x49005e72, 0x38001660, 0x38001660},
++      {0x0000a544, 0x4e005eb2, 0x4e005eb2, 0x3b001861, 0x3b001861},
++      {0x0000a548, 0x53005f12, 0x53005f12, 0x3e001a81, 0x3e001a81},
++      {0x0000a54c, 0x59025eb2, 0x59025eb2, 0x42001a83, 0x42001a83},
++      {0x0000a550, 0x5e025f12, 0x5e025f12, 0x44001c84, 0x44001c84},
++      {0x0000a554, 0x61027f12, 0x61027f12, 0x48001ce3, 0x48001ce3},
++      {0x0000a558, 0x6702bf12, 0x6702bf12, 0x4c001ce5, 0x4c001ce5},
++      {0x0000a55c, 0x6b02bf14, 0x6b02bf14, 0x50001ce9, 0x50001ce9},
++      {0x0000a560, 0x6f02bf16, 0x6f02bf16, 0x54001ceb, 0x54001ceb},
++      {0x0000a564, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a568, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a56c, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a570, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a574, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a578, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a57c, 0x6f02bf16, 0x6f02bf16, 0x56001eec, 0x56001eec},
++      {0x0000a580, 0x00802220, 0x00802220, 0x00800000, 0x00800000},
++      {0x0000a584, 0x04802222, 0x04802222, 0x04800002, 0x04800002},
++      {0x0000a588, 0x09802421, 0x09802421, 0x08800004, 0x08800004},
++      {0x0000a58c, 0x0d802621, 0x0d802621, 0x0b800200, 0x0b800200},
++      {0x0000a590, 0x13804620, 0x13804620, 0x0f800202, 0x0f800202},
++      {0x0000a594, 0x19804a20, 0x19804a20, 0x11800400, 0x11800400},
++      {0x0000a598, 0x1d804e20, 0x1d804e20, 0x15800402, 0x15800402},
++      {0x0000a59c, 0x21805420, 0x21805420, 0x19800404, 0x19800404},
++      {0x0000a5a0, 0x26805e20, 0x26805e20, 0x1b800603, 0x1b800603},
++      {0x0000a5a4, 0x2b805e40, 0x2b805e40, 0x1f800a02, 0x1f800a02},
++      {0x0000a5a8, 0x2f805e42, 0x2f805e42, 0x23800a04, 0x23800a04},
++      {0x0000a5ac, 0x33805e44, 0x33805e44, 0x26800a20, 0x26800a20},
++      {0x0000a5b0, 0x38805e65, 0x38805e65, 0x2a800e20, 0x2a800e20},
++      {0x0000a5b4, 0x3c805e69, 0x3c805e69, 0x2e800e22, 0x2e800e22},
++      {0x0000a5b8, 0x40805e6b, 0x40805e6b, 0x31800e24, 0x31800e24},
++      {0x0000a5bc, 0x44805e6d, 0x44805e6d, 0x34801640, 0x34801640},
++      {0x0000a5c0, 0x49805e72, 0x49805e72, 0x38801660, 0x38801660},
++      {0x0000a5c4, 0x4e805eb2, 0x4e805eb2, 0x3b801861, 0x3b801861},
++      {0x0000a5c8, 0x53805f12, 0x53805f12, 0x3e801a81, 0x3e801a81},
++      {0x0000a5cc, 0x59825eb2, 0x59825eb2, 0x42801a83, 0x42801a83},
++      {0x0000a5d0, 0x5e825f12, 0x5e825f12, 0x44801c84, 0x44801c84},
++      {0x0000a5d4, 0x61827f12, 0x61827f12, 0x48801ce3, 0x48801ce3},
++      {0x0000a5d8, 0x6782bf12, 0x6782bf12, 0x4c801ce5, 0x4c801ce5},
++      {0x0000a5dc, 0x6b82bf14, 0x6b82bf14, 0x50801ce9, 0x50801ce9},
++      {0x0000a5e0, 0x6f82bf16, 0x6f82bf16, 0x54801ceb, 0x54801ceb},
++      {0x0000a5e4, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
++      {0x0000a5e8, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
++      {0x0000a5ec, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
++      {0x0000a5f0, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
++      {0x0000a5f4, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
++      {0x0000a5f8, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
++      {0x0000a5fc, 0x6f82bf16, 0x6f82bf16, 0x56801eec, 0x56801eec},
+       {0x0000a600, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+       {0x0000a604, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+       {0x0000a608, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+       {0x0000a60c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+-      {0x0000a610, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+-      {0x0000a614, 0x02004000, 0x02004000, 0x01404000, 0x01404000},
+-      {0x0000a618, 0x02004801, 0x02004801, 0x01404501, 0x01404501},
+-      {0x0000a61c, 0x02808a02, 0x02808a02, 0x02008501, 0x02008501},
+-      {0x0000a620, 0x0380ce03, 0x0380ce03, 0x0280ca03, 0x0280ca03},
+-      {0x0000a624, 0x04411104, 0x04411104, 0x03010c04, 0x03010c04},
+-      {0x0000a628, 0x04411104, 0x04411104, 0x04014c04, 0x04014c04},
+-      {0x0000a62c, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
+-      {0x0000a630, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
+-      {0x0000a634, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
+-      {0x0000a638, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
+-      {0x0000a63c, 0x04411104, 0x04411104, 0x04015005, 0x04015005},
+-      {0x0000b2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352},
+-      {0x0000b2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584},
+-      {0x0000b2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800},
++      {0x0000a610, 0x00804000, 0x00804000, 0x00000000, 0x00000000},
++      {0x0000a614, 0x00804201, 0x00804201, 0x01404000, 0x01404000},
++      {0x0000a618, 0x0280c802, 0x0280c802, 0x01404501, 0x01404501},
++      {0x0000a61c, 0x0280ca03, 0x0280ca03, 0x02008501, 0x02008501},
++      {0x0000a620, 0x04c15104, 0x04c15104, 0x0280ca03, 0x0280ca03},
++      {0x0000a624, 0x04c15305, 0x04c15305, 0x03010c04, 0x03010c04},
++      {0x0000a628, 0x04c15305, 0x04c15305, 0x04014c04, 0x04014c04},
++      {0x0000a62c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
++      {0x0000a630, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
++      {0x0000a634, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
++      {0x0000a638, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
++      {0x0000a63c, 0x04c15305, 0x04c15305, 0x04015005, 0x04015005},
++      {0x0000b2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
++      {0x0000b2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
++      {0x0000b2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
+       {0x0000b2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+-      {0x0000c2dc, 0x00033800, 0x00033800, 0x03aaa352, 0x03aaa352},
+-      {0x0000c2e0, 0x0003c000, 0x0003c000, 0x03ccc584, 0x03ccc584},
+-      {0x0000c2e4, 0x03fc0000, 0x03fc0000, 0x03f0f800, 0x03f0f800},
++      {0x0000c2dc, 0x0380c7fc, 0x0380c7fc, 0x03aaa352, 0x03aaa352},
++      {0x0000c2e0, 0x0000f800, 0x0000f800, 0x03ccc584, 0x03ccc584},
++      {0x0000c2e4, 0x03ff0000, 0x03ff0000, 0x03f0f800, 0x03f0f800},
+       {0x0000c2e8, 0x00000000, 0x00000000, 0x03ff0000, 0x03ff0000},
+       {0x00016044, 0x012492d4, 0x012492d4, 0x012492d4, 0x012492d4},
+       {0x00016048, 0x66480001, 0x66480001, 0x66480001, 0x66480001},
+--- a/drivers/net/wireless/ath/ath9k/debug.h
++++ b/drivers/net/wireless/ath/ath9k/debug.h
+@@ -242,7 +242,7 @@ struct ath_rx_stats {
+ struct ath_stats {
+       struct ath_interrupt_stats istats;
+-      struct ath_tx_stats txstats[IEEE80211_NUM_ACS];
++      struct ath_tx_stats txstats[ATH9K_NUM_TX_QUEUES];
+       struct ath_rx_stats rxstats;
+       struct ath_dfs_stats dfs_stats;
+       u32 reset[__RESET_TYPE_MAX];
+--- a/drivers/net/wireless/ath/carl9170/rx.c
++++ b/drivers/net/wireless/ath/carl9170/rx.c
+@@ -684,7 +684,7 @@ static int carl9170_handle_mpdu(struct a
+       if (!skb)
+               return -ENOMEM;
+-      memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
++      memcpy(IEEE80211_SKB_RXCB(skb), status, sizeof(*status));
+       ieee80211_rx(ar->hw, skb);
+       return 0;
+ }
+--- a/drivers/net/wireless/ath/ath9k/calib.c
++++ b/drivers/net/wireless/ath/ath9k/calib.c
+@@ -69,6 +69,7 @@ s16 ath9k_hw_getchan_noise(struct ath_hw
+       if (chan && chan->noisefloor) {
+               s8 delta = chan->noisefloor -
++                         ATH9K_NF_CAL_NOISE_THRESH -
+                          ath9k_hw_get_default_nf(ah, chan);
+               if (delta > 0)
+                       noise += delta;
+--- a/drivers/net/wireless/ath/ath9k/calib.h
++++ b/drivers/net/wireless/ath/ath9k/calib.h
+@@ -21,6 +21,9 @@
+ #define AR_PHY_CCA_FILTERWINDOW_LENGTH          5
++/* Internal noise floor can vary by about 6db depending on the frequency */
++#define ATH9K_NF_CAL_NOISE_THRESH             6
 +
-+              if (!skb->dev) {
-+                      sdata = rcu_dereference(local->p2p_sdata);
-+                      if (sdata)
-+                              found = true;
-+              }
-+
-+              if (!found)
-+                      skb->dev = NULL;
-+              else if (ieee80211_is_nullfunc(hdr->frame_control) ||
-+                       ieee80211_is_qos_nullfunc(hdr->frame_control)) {
-+                      cfg80211_probe_status(sdata->dev, hdr->addr1,
-+                                            cookie, acked, GFP_ATOMIC);
-+              } else {
-+                      cfg80211_mgmt_tx_status(&sdata->wdev, cookie, skb->data,
-+                                              skb->len, acked, GFP_ATOMIC);
-+              }
-+
-+              rcu_read_unlock();
+ #define NUM_NF_READINGS       6
+ #define ATH9K_NF_CAL_HIST_MAX 5
+--- a/drivers/net/wireless/ath/ath5k/base.c
++++ b/drivers/net/wireless/ath/ath5k/base.c
+@@ -851,7 +851,7 @@ ath5k_txbuf_free_skb(struct ath5k_hw *ah
+               return;
+       dma_unmap_single(ah->dev, bf->skbaddr, bf->skb->len,
+                       DMA_TO_DEVICE);
+-      dev_kfree_skb_any(bf->skb);
++      ieee80211_free_txskb(ah->hw, bf->skb);
+       bf->skb = NULL;
+       bf->skbaddr = 0;
+       bf->desc->ds_data = 0;
+@@ -1578,7 +1578,7 @@ ath5k_tx_queue(struct ieee80211_hw *hw, 
+       return;
+ drop_packet:
+-      dev_kfree_skb_any(skb);
++      ieee80211_free_txskb(hw, skb);
+ }
+ static void
+--- a/drivers/net/wireless/ath/ath5k/mac80211-ops.c
++++ b/drivers/net/wireless/ath/ath5k/mac80211-ops.c
+@@ -65,7 +65,7 @@ ath5k_tx(struct ieee80211_hw *hw, struct
+       u16 qnum = skb_get_queue_mapping(skb);
+       if (WARN_ON(qnum >= ah->ah_capabilities.cap_queues.q_tx_num)) {
+-              dev_kfree_skb_any(skb);
++              ieee80211_free_txskb(hw, skb);
+               return;
        }
  
-       if (unlikely(info->ack_frame_id)) {
---- a/drivers/net/wireless/p54/main.c
-+++ b/drivers/net/wireless/p54/main.c
-@@ -139,6 +139,7 @@ static int p54_beacon_format_ie_tim(stru
- static int p54_beacon_update(struct p54_common *priv,
-                       struct ieee80211_vif *vif)
+--- a/drivers/net/wireless/b43/dma.c
++++ b/drivers/net/wireless/b43/dma.c
+@@ -409,7 +409,10 @@ static inline
+                               struct b43_dmadesc_meta *meta)
  {
-+      struct ieee80211_tx_control control = { };
-       struct sk_buff *beacon;
-       int ret;
-@@ -158,7 +159,7 @@ static int p54_beacon_update(struct p54_
-        * to cancel the old beacon template by hand, instead the firmware
-        * will release the previous one through the feedback mechanism.
-        */
--      p54_tx_80211(priv->hw, NULL, beacon);
-+      p54_tx_80211(priv->hw, &control, beacon);
-       priv->tsf_high32 = 0;
-       priv->tsf_low32 = 0;
---- a/net/wireless/reg.c
-+++ b/net/wireless/reg.c
-@@ -352,6 +352,9 @@ static void reg_regdb_search(struct work
-       struct reg_regdb_search_request *request;
-       const struct ieee80211_regdomain *curdom, *regdom;
-       int i, r;
-+      bool set_reg = false;
-+
-+      mutex_lock(&cfg80211_mutex);
-       mutex_lock(&reg_regdb_search_mutex);
-       while (!list_empty(&reg_regdb_search_list)) {
-@@ -367,9 +370,7 @@ static void reg_regdb_search(struct work
-                               r = reg_copy_regd(&regdom, curdom);
-                               if (r)
-                                       break;
--                              mutex_lock(&cfg80211_mutex);
--                              set_regdom(regdom);
--                              mutex_unlock(&cfg80211_mutex);
-+                              set_reg = true;
+       if (meta->skb) {
+-              dev_kfree_skb_any(meta->skb);
++              if (ring->tx)
++                      ieee80211_free_txskb(ring->dev->wl->hw, meta->skb);
++              else
++                      dev_kfree_skb_any(meta->skb);
+               meta->skb = NULL;
+       }
+ }
+@@ -1454,7 +1457,7 @@ int b43_dma_tx(struct b43_wldev *dev, st
+       if (unlikely(err == -ENOKEY)) {
+               /* Drop this packet, as we don't have the encryption key
+                * anymore and must not transmit it unencrypted. */
+-              dev_kfree_skb_any(skb);
++              ieee80211_free_txskb(dev->wl->hw, skb);
+               err = 0;
+               goto out;
+       }
+--- a/drivers/net/wireless/b43/main.c
++++ b/drivers/net/wireless/b43/main.c
+@@ -3397,7 +3397,7 @@ static void b43_tx_work(struct work_stru
                                break;
                        }
+                       if (unlikely(err))
+-                              dev_kfree_skb(skb); /* Drop it */
++                              ieee80211_free_txskb(wl->hw, skb);
+                       err = 0;
                }
-@@ -377,6 +378,11 @@ static void reg_regdb_search(struct work
-               kfree(request);
+@@ -3419,7 +3419,7 @@ static void b43_op_tx(struct ieee80211_h
+       if (unlikely(skb->len < 2 + 2 + 6)) {
+               /* Too short, this can't be a valid frame. */
+-              dev_kfree_skb_any(skb);
++              ieee80211_free_txskb(hw, skb);
+               return;
        }
-       mutex_unlock(&reg_regdb_search_mutex);
-+
-+      if (set_reg)
-+              set_regdom(regdom);
+       B43_WARN_ON(skb_shinfo(skb)->nr_frags);
+@@ -4234,8 +4234,12 @@ redo:
+       /* Drain all TX queues. */
+       for (queue_num = 0; queue_num < B43_QOS_QUEUE_NUM; queue_num++) {
+-              while (skb_queue_len(&wl->tx_queue[queue_num]))
+-                      dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
++              while (skb_queue_len(&wl->tx_queue[queue_num])) {
++                      struct sk_buff *skb;
 +
-+      mutex_unlock(&cfg80211_mutex);
- }
++                      skb = skb_dequeue(&wl->tx_queue[queue_num]);
++                      ieee80211_free_txskb(wl->hw, skb);
++              }
+       }
  
- static DECLARE_WORK(reg_regdb_work, reg_regdb_search);
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -424,8 +424,8 @@ u32 ath_calcrxfilter(struct ath_softc *s
-               rfilt |= ATH9K_RX_FILTER_COMP_BAR;
-       if (sc->nvifs > 1 || (sc->rx.rxfilter & FIF_OTHER_BSS)) {
--              /* The following may also be needed for other older chips */
--              if (sc->sc_ah->hw_version.macVersion == AR_SREV_VERSION_9160)
-+              /* This is needed for older chips */
-+              if (sc->sc_ah->hw_version.macVersion <= AR_SREV_VERSION_9160)
-                       rfilt |= ATH9K_RX_FILTER_PROM;
-               rfilt |= ATH9K_RX_FILTER_MCAST_BCAST_ALL;
+       b43_mac_suspend(dev);
+--- a/drivers/net/wireless/b43/pio.c
++++ b/drivers/net/wireless/b43/pio.c
+@@ -196,7 +196,7 @@ static void b43_pio_cancel_tx_packets(st
+       for (i = 0; i < ARRAY_SIZE(q->packets); i++) {
+               pack = &(q->packets[i]);
+               if (pack->skb) {
+-                      dev_kfree_skb_any(pack->skb);
++                      ieee80211_free_txskb(q->dev->wl->hw, pack->skb);
+                       pack->skb = NULL;
+               }
        }
---- a/net/mac80211/mlme.c
-+++ b/net/mac80211/mlme.c
-@@ -1390,7 +1390,7 @@ static void ieee80211_set_disassoc(struc
-       sta = sta_info_get(sdata, ifmgd->bssid);
-       if (sta) {
-               set_sta_flag(sta, WLAN_STA_BLOCK_BA);
--              ieee80211_sta_tear_down_BA_sessions(sta, tx);
-+              ieee80211_sta_tear_down_BA_sessions(sta, false);
+@@ -552,7 +552,7 @@ int b43_pio_tx(struct b43_wldev *dev, st
+       if (unlikely(err == -ENOKEY)) {
+               /* Drop this packet, as we don't have the encryption key
+                * anymore and must not transmit it unencrypted. */
+-              dev_kfree_skb_any(skb);
++              ieee80211_free_txskb(dev->wl->hw, skb);
+               err = 0;
+               goto out;
        }
-       mutex_unlock(&local->sta_mtx);
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -915,6 +915,12 @@ static int ieee80211_start_ap(struct wip
+       if (err)
+               return err;
  
---- a/net/mac80211/sta_info.c
-+++ b/net/mac80211/sta_info.c
-@@ -674,7 +674,7 @@ int __must_check __sta_info_destroy(stru
-        * will be sufficient.
-        */
-       set_sta_flag(sta, WLAN_STA_BLOCK_BA);
--      ieee80211_sta_tear_down_BA_sessions(sta, true);
-+      ieee80211_sta_tear_down_BA_sessions(sta, false);
-       ret = sta_info_hash_del(local, sta);
-       if (ret)
---- a/drivers/net/wireless/ath/ath5k/phy.c
-+++ b/drivers/net/wireless/ath/ath5k/phy.c
-@@ -1977,11 +1977,13 @@ ath5k_hw_set_spur_mitigation_filter(stru
-                       spur_delta_phase = (spur_offset << 18) / 25;
-                       spur_freq_sigma_delta = (spur_delta_phase >> 10);
-                       symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz / 2;
-+                      break;
-               case AR5K_BWMODE_5MHZ:
-                       /* Both sample_freq and chip_freq are 10MHz (?) */
-                       spur_delta_phase = (spur_offset << 19) / 25;
-                       spur_freq_sigma_delta = (spur_delta_phase >> 10);
-                       symbol_width = AR5K_SPUR_SYMBOL_WIDTH_BASE_100Hz / 4;
-+                      break;
-               default:
-                       if (channel->band == IEEE80211_BAND_5GHZ) {
-                               /* Both sample_freq and chip_freq are 40MHz */
++      list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
++              err = ieee80211_vif_copy_channel(vlan, sdata);
++              if (err)
++                      return err;
++      }
++
+       /*
+        * Apply control port protocol, this allows us to
+        * not encrypt dynamic WEP control frames.
+@@ -998,8 +1004,11 @@ static int ieee80211_stop_ap(struct wiph
+       old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
+       /* turn off carrier for this interface and dependent VLANs */
+-      list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
++      list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
++              sta_info_flush(local, vlan);
+               netif_carrier_off(vlan->dev);
++              ieee80211_vif_release_channel(vlan);
++      }
+       netif_carrier_off(dev);
+       /* remove beacon and probe response */
+--- a/net/mac80211/chan.c
++++ b/net/mac80211/chan.c
+@@ -119,14 +119,17 @@ static int ieee80211_assign_vif_chanctx(
+       lockdep_assert_held(&local->chanctx_mtx);
+-      ret = drv_assign_vif_chanctx(local, sdata, ctx);
+-      if (ret)
+-              return ret;
++      if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN) {
++              ret = drv_assign_vif_chanctx(local, sdata, ctx);
++              if (ret)
++                      return ret;
++      }
+       rcu_assign_pointer(sdata->vif.chanctx_conf, &ctx->conf);
+       ctx->refcount++;
+-      ieee80211_recalc_txpower(sdata);
++      if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
++              ieee80211_recalc_txpower(sdata);
+       return 0;
+ }
+@@ -174,7 +177,8 @@ static void ieee80211_unassign_vif_chanc
+       ctx->refcount--;
+       rcu_assign_pointer(sdata->vif.chanctx_conf, NULL);
+-      drv_unassign_vif_chanctx(local, sdata, ctx);
++      if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
++              drv_unassign_vif_chanctx(local, sdata, ctx);
+       if (ctx->refcount > 0) {
+               ieee80211_recalc_chanctx_chantype(sdata->local, ctx);
+@@ -285,6 +289,30 @@ void ieee80211_recalc_smps_chanctx(struc
+       drv_change_chanctx(local, chanctx, IEEE80211_CHANCTX_CHANGE_RX_CHAINS);
+ }
++int ieee80211_vif_copy_channel(struct ieee80211_sub_if_data *sdata,
++                             struct ieee80211_sub_if_data *parent)
++{
++      struct ieee80211_local *local = sdata->local;
++      struct ieee80211_chanctx_conf *conf;
++      struct ieee80211_chanctx *ctx;
++
++      int ret;
++
++      mutex_lock(&local->chanctx_mtx);
++      conf = rcu_dereference_protected(parent->vif.chanctx_conf,
++                                       lockdep_is_held(&local->chanctx_mtx));
++      if (!conf) {
++              ret = -ENOENT;
++              goto out;
++      }
++
++      ctx = container_of(conf, struct ieee80211_chanctx, conf);
++      ret = ieee80211_assign_vif_chanctx(sdata, ctx);
++out:
++      mutex_unlock(&local->chanctx_mtx);
++      return ret;
++}
++
+ int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
+                             const struct cfg80211_chan_def *chandef,
+                             enum ieee80211_chanctx_mode mode)
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -1633,6 +1633,8 @@ ieee80211_vif_use_channel(struct ieee802
+                         const struct cfg80211_chan_def *chandef,
+                         enum ieee80211_chanctx_mode mode);
+ void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
++int ieee80211_vif_copy_channel(struct ieee80211_sub_if_data *sdata,
++                             struct ieee80211_sub_if_data *parent);
+ void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
+                                  struct ieee80211_chanctx *chanctx);