ath9k: disable btcoex again after it got re-enabled by the update
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 300-pending_work.patch
index 3a4a059b45c03c6027f805506b793d29bddc0ea2..8bb89422eda7654e17be053871e9f47ad568b617 100644 (file)
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -118,7 +118,7 @@ void ath9k_ps_restore(struct ath_softc *
-       if (--sc->ps_usecount != 0)
-               goto unlock;
--      if (sc->ps_idle)
-+      if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK))
-               mode = ATH9K_PM_FULL_SLEEP;
-       else if (sc->ps_enabled &&
-                !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
-@@ -332,7 +332,8 @@ static int ath_reset_internal(struct ath
-               hchan = ah->curchan;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -510,7 +510,11 @@ 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 +536,7 @@ 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 (fastcc && !ath9k_hw_check_alive(ah))
-+      if (fastcc && (ah->chip_fullsleep ||
-+          !ath9k_hw_check_alive(ah)))
-               fastcc = false;
-       if (!ath_prepare_reset(sc, retry_tx, flush))
-@@ -882,82 +883,6 @@ chip_reset:
- #undef SCHED_INTR
- }
--static void ath_radio_enable(struct ath_softc *sc, struct ieee80211_hw *hw)
--{
--      struct ath_hw *ah = sc->sc_ah;
--      struct ath_common *common = ath9k_hw_common(ah);
--      struct ieee80211_channel *channel = hw->conf.channel;
--      int r;
--
--      ath9k_ps_wakeup(sc);
--      spin_lock_bh(&sc->sc_pcu_lock);
--      atomic_set(&ah->intr_ref_cnt, -1);
--
--      ath9k_hw_configpcipowersave(ah, false);
--
--      if (!ah->curchan)
--              ah->curchan = ath9k_cmn_get_curchannel(sc->hw, ah);
--
--      r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
--      if (r) {
--              ath_err(common,
--                      "Unable to reset channel (%u MHz), reset status %d\n",
--                      channel->center_freq, r);
--      }
--
--      ath_complete_reset(sc, true);
--
--      /* Enable LED */
--      ath9k_hw_cfg_output(ah, ah->led_pin,
--                          AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
--      ath9k_hw_set_gpio(ah, ah->led_pin, 0);
--
--      spin_unlock_bh(&sc->sc_pcu_lock);
--
--      ath9k_ps_restore(sc);
--}
--
--void ath_radio_disable(struct ath_softc *sc, struct ieee80211_hw *hw)
--{
--      struct ath_hw *ah = sc->sc_ah;
--      struct ieee80211_channel *channel = hw->conf.channel;
--      int r;
--
--      ath9k_ps_wakeup(sc);
--
--      ath_cancel_work(sc);
--
--      spin_lock_bh(&sc->sc_pcu_lock);
--
--      /*
--       * Keep the LED on when the radio is disabled
--       * during idle unassociated state.
--       */
--      if (!sc->ps_idle) {
--              ath9k_hw_set_gpio(ah, ah->led_pin, 1);
--              ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
--      }
--
--      ath_prepare_reset(sc, false, true);
--
--      if (!ah->curchan)
--              ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
--
--      r = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
--      if (r) {
--              ath_err(ath9k_hw_common(sc->sc_ah),
--                      "Unable to reset channel (%u MHz), reset status %d\n",
--                      channel->center_freq, r);
--      }
--
--      ath9k_hw_phy_disable(ah);
--
--      ath9k_hw_configpcipowersave(ah, true);
--
--      spin_unlock_bh(&sc->sc_pcu_lock);
--      ath9k_ps_restore(sc);
--}
--
- static int ath_reset(struct ath_softc *sc, bool retry_tx)
+       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
  {
-       int r;
-@@ -1093,6 +1018,9 @@ static int ath9k_start(struct ieee80211_
-        * and then setup of the interrupt mask.
-        */
-       spin_lock_bh(&sc->sc_pcu_lock);
-+
-+      atomic_set(&ah->intr_ref_cnt, -1);
-+
-       r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
-       if (r) {
-               ath_err(common,
-@@ -1131,6 +1059,18 @@ static int ath9k_start(struct ieee80211_
-               goto mutex_unlock;
-       }
+       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;
+       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();
  
-+      if (ah->led_pin >= 0) {
-+              ath9k_hw_cfg_output(ah, ah->led_pin,
-+                                  AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-+              ath9k_hw_set_gpio(ah, ah->led_pin, 0);
-+      }
-+
-+      /*
-+       * Reset key cache to sane defaults (all entries cleared) instead of
-+       * semi-random values after suspend/resume.
-+       */
-+      ath9k_cmn_init_crypto(sc->sc_ah);
-+
-       spin_unlock_bh(&sc->sc_pcu_lock);
+-              tx_info = IEEE80211_SKB_CB(skb);
+               if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
+                       atomic_dec(&ar->tx_ampdu_upload);
  
-       if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
-@@ -1176,6 +1116,13 @@ static void ath9k_tx(struct ieee80211_hw
-               }
-       }
+--- 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;
  
-+      /*
-+       * Cannot tx while the hardware is in full sleep, it first needs a full
-+       * chip reset to recover from that
-+       */
-+      if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP))
-+              goto exit;
-+
-       if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) {
+       if (sta_priv && sta_priv->asleep &&
+-          (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
++          (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)) {
                /*
-                * We are using PS-Poll and mac80211 can request TX while in
-@@ -1222,6 +1169,7 @@ static void ath9k_stop(struct ieee80211_
-       struct ath_softc *sc = hw->priv;
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath_common *common = ath9k_hw_common(ah);
-+      bool prev_idle;
-       mutex_lock(&sc->mutex);
-@@ -1252,35 +1200,45 @@ static void ath9k_stop(struct ieee80211_
-        * before setting the invalid flag. */
-       ath9k_hw_disable_interrupts(ah);
--      if (!(sc->sc_flags & SC_OP_INVALID)) {
--              ath_drain_all_txq(sc, false);
--              ath_stoprecv(sc);
--              ath9k_hw_phy_disable(ah);
--      } else
--              sc->rx.rxlink = NULL;
-+      spin_unlock_bh(&sc->sc_pcu_lock);
-+
-+      /* we can now sync irq and kill any running tasklets, since we already
-+       * disabled interrupts and not holding a spin lock */
-+      synchronize_irq(sc->irq);
-+      tasklet_kill(&sc->intr_tq);
-+      tasklet_kill(&sc->bcon_tasklet);
-+
-+      prev_idle = sc->ps_idle;
-+      sc->ps_idle = true;
-+
-+      spin_lock_bh(&sc->sc_pcu_lock);
-+
-+      if (ah->led_pin >= 0) {
-+              ath9k_hw_set_gpio(ah, ah->led_pin, 1);
-+              ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
-+      }
-+
-+      ath_prepare_reset(sc, false, true);
-       if (sc->rx.frag) {
-               dev_kfree_skb_any(sc->rx.frag);
-               sc->rx.frag = NULL;
-       }
--      /* disable HAL and put h/w to sleep */
--      ath9k_hw_disable(ah);
-+      if (!ah->curchan)
-+              ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
--      spin_unlock_bh(&sc->sc_pcu_lock);
-+      ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
-+      ath9k_hw_phy_disable(ah);
--      /* we can now sync irq and kill any running tasklets, since we already
--       * disabled interrupts and not holding a spin lock */
--      synchronize_irq(sc->irq);
--      tasklet_kill(&sc->intr_tq);
--      tasklet_kill(&sc->bcon_tasklet);
-+      ath9k_hw_configpcipowersave(ah, true);
--      ath9k_ps_restore(sc);
-+      spin_unlock_bh(&sc->sc_pcu_lock);
--      sc->ps_idle = true;
--      ath_radio_disable(sc, hw);
-+      ath9k_ps_restore(sc);
-       sc->sc_flags |= SC_OP_INVALID;
-+      sc->ps_idle = prev_idle;
-       mutex_unlock(&sc->mutex);
-@@ -1620,8 +1578,8 @@ static int ath9k_config(struct ieee80211
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath_common *common = ath9k_hw_common(ah);
-       struct ieee80211_conf *conf = &hw->conf;
--      bool disable_radio = false;
-+      ath9k_ps_wakeup(sc);
-       mutex_lock(&sc->mutex);
-       /*
-@@ -1632,13 +1590,8 @@ static int ath9k_config(struct ieee80211
-        */
-       if (changed & IEEE80211_CONF_CHANGE_IDLE) {
-               sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
--              if (!sc->ps_idle) {
--                      ath_radio_enable(sc, hw);
--                      ath_dbg(common, ATH_DBG_CONFIG,
--                              "not-idle: enabling radio\n");
--              } else {
--                      disable_radio = true;
--              }
-+              if (sc->ps_idle)
-+                      ath_cancel_work(sc);
-       }
-       /*
-@@ -1745,18 +1698,12 @@ static int ath9k_config(struct ieee80211
-               ath_dbg(common, ATH_DBG_CONFIG,
-                       "Set power: %d\n", conf->power_level);
-               sc->config.txpowlimit = 2 * conf->power_level;
--              ath9k_ps_wakeup(sc);
-               ath9k_cmn_update_txpow(ah, sc->curtxpow,
-                                      sc->config.txpowlimit, &sc->curtxpow);
--              ath9k_ps_restore(sc);
--      }
--
--      if (disable_radio) {
--              ath_dbg(common, ATH_DBG_CONFIG, "idle: disabling radio\n");
--              ath_radio_disable(sc, hw);
-       }
-       mutex_unlock(&sc->mutex);
-+      ath9k_ps_restore(sc);
-       return 0;
- }
-@@ -2324,9 +2271,6 @@ static void ath9k_flush(struct ieee80211
-               return;
-       }
--      if (drop)
--              timeout = 1;
--
-       for (j = 0; j < timeout; j++) {
-               bool npend = false;
-@@ -2344,21 +2288,22 @@ static void ath9k_flush(struct ieee80211
-               }
-               if (!npend)
--                  goto out;
-+                  break;
-       }
--      ath9k_ps_wakeup(sc);
--      spin_lock_bh(&sc->sc_pcu_lock);
--      drain_txq = ath_drain_all_txq(sc, false);
--      spin_unlock_bh(&sc->sc_pcu_lock);
-+      if (drop) {
-+              ath9k_ps_wakeup(sc);
-+              spin_lock_bh(&sc->sc_pcu_lock);
-+              drain_txq = ath_drain_all_txq(sc, false);
-+              spin_unlock_bh(&sc->sc_pcu_lock);
--      if (!drain_txq)
--              ath_reset(sc, false);
-+              if (!drain_txq)
-+                      ath_reset(sc, false);
--      ath9k_ps_restore(sc);
--      ieee80211_wake_queues(hw);
-+              ath9k_ps_restore(sc);
-+              ieee80211_wake_queues(hw);
-+      }
--out:
-       ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0);
-       mutex_unlock(&sc->mutex);
- }
---- a/drivers/net/wireless/ath/ath9k/pci.c
-+++ b/drivers/net/wireless/ath/ath9k/pci.c
-@@ -307,12 +307,11 @@ static int ath_pci_suspend(struct device
-       struct ieee80211_hw *hw = pci_get_drvdata(pdev);
-       struct ath_softc *sc = hw->priv;
--      ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
--
-       /* The device has to be moved to FULLSLEEP forcibly.
-        * Otherwise the chip never moved to full sleep,
-        * when no interface is up.
-        */
-+      ath9k_hw_disable(sc->sc_ah);
-       ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
-       return 0;
-@@ -334,22 +333,6 @@ static int ath_pci_resume(struct device 
-       if ((val & 0x0000ff00) != 0)
-               pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
--      ath9k_ps_wakeup(sc);
--      /* Enable LED */
--      ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin,
--                          AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
--      ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
--
--        /*
--         * Reset key cache to sane defaults (all entries cleared) instead of
--         * semi-random values after suspend/resume.
--         */
--      ath9k_cmn_init_crypto(sc->sc_ah);
--      ath9k_ps_restore(sc);
--
--      sc->ps_idle = true;
--      ath_radio_disable(sc, hw);
--
-       return 0;
- }
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -1955,7 +1955,7 @@ static void ath_tx_complete(struct ath_s
-               skb_pull(skb, padsize);
+                * 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;
+       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);
        }
--      if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) {
-+      if ((sc->ps_flags & PS_WAIT_FOR_TX_ACK) && !txq->axq_depth) {
-               sc->ps_flags &= ~PS_WAIT_FOR_TX_ACK;
-               ath_dbg(common, ATH_DBG_PS,
-                       "Going back to sleep after having received TX status (0x%lx)\n",
---- a/include/net/cfg80211.h
-+++ b/include/net/cfg80211.h
-@@ -1130,6 +1130,7 @@ struct cfg80211_ibss_params {
-       u8 *ssid;
-       u8 *bssid;
-       struct ieee80211_channel *channel;
-+      enum nl80211_channel_type channel_type;
-       u8 *ie;
-       u8 ssid_len, ie_len;
-       u16 beacon_interval;
-@@ -3292,6 +3293,16 @@ void cfg80211_report_obss_beacon(struct 
-                                const u8 *frame, size_t len,
-                                int freq, gfp_t gfp);
-+/**
-+ * cfg80211_can_use_ext_chan - test if ht40 on extension channel can be used
-+ * @wiphy: the wiphy
-+ * @chan: main channel
-+ * @channel_type: HT mode
-+ */
-+bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
-+                                struct ieee80211_channel *chan,
-+                                enum nl80211_channel_type channel_type);
-+
- /* Logging, debugging and troubleshooting/diagnostic helpers. */
- /* wiphy_printk helpers, similar to dev_printk */
+--- 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)
+@@ -1634,7 +1634,7 @@ 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 +1642,9 @@ 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 +2143,7 @@ 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
-@@ -182,6 +182,10 @@ static void ieee80211_send_addba_resp(st
-               memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
-       else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+@@ -187,6 +187,8 @@ 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);
 +      else if (sdata->vif.type == NL80211_IFTYPE_WDS)
 +              memcpy(mgmt->bssid, da, ETH_ALEN);
-+      else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-+              memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
  
        mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
                                          IEEE80211_STYPE_ACTION);
 --- a/net/mac80211/agg-tx.c
 +++ b/net/mac80211/agg-tx.c
-@@ -79,10 +79,13 @@ static void ieee80211_send_addba_request
+@@ -81,7 +81,8 @@ static void ieee80211_send_addba_request
        memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
        if (sdata->vif.type == NL80211_IFTYPE_AP ||
            sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
                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);
-+      else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-+              memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
-       mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-                                         IEEE80211_STYPE_ACTION);
-@@ -394,7 +397,9 @@ int ieee80211_start_tx_ba_session(struct
-       if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+@@ -471,6 +472,7 @@ 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)
-+          sdata->vif.type != NL80211_IFTYPE_AP &&
-+          sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-+          sdata->vif.type != NL80211_IFTYPE_WDS)
+           sdata->vif.type != NL80211_IFTYPE_AP &&
++          sdata->vif.type != NL80211_IFTYPE_WDS &&
+           sdata->vif.type != NL80211_IFTYPE_ADHOC)
                return -EINVAL;
  
-       if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) {
 --- a/net/mac80211/debugfs_sta.c
 +++ b/net/mac80211/debugfs_sta.c
 @@ -63,11 +63,11 @@ 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",
                            TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
                            TEST(PS_DRIVER), TEST(AUTHORIZED),
-                           TEST(SHORT_PREAMBLE), TEST(ASSOC_AP),
+                           TEST(SHORT_PREAMBLE),
 -                          TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
 +                          TEST(WME), TEST(CLEAR_PS_FILT),
                            TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
                            TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
-                           TEST(TDLS_PEER_AUTH));
---- a/net/mac80211/ht.c
-+++ b/net/mac80211/ht.c
-@@ -201,6 +201,8 @@ void ieee80211_send_delba(struct ieee802
-               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);
-+      else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-+              memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
-       mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-                                         IEEE80211_STYPE_ACTION);
---- a/net/mac80211/ibss.c
-+++ b/net/mac80211/ibss.c
-@@ -77,6 +77,7 @@ static void __ieee80211_sta_join_ibss(st
-       struct cfg80211_bss *bss;
-       u32 bss_change;
-       u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
-+      enum nl80211_channel_type channel_type;
-       lockdep_assert_held(&ifibss->mtx);
-@@ -105,8 +106,16 @@ static void __ieee80211_sta_join_ibss(st
-       sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
--      local->oper_channel = chan;
--      WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
-+      channel_type = ifibss->channel_type;
-+      if (channel_type > NL80211_CHAN_HT20 &&
-+          !cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type))
-+              channel_type = NL80211_CHAN_HT20;
-+      if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
-+              /* can only fail due to HT40+/- mismatch */
-+              channel_type = NL80211_CHAN_HT20;
-+              WARN_ON(!ieee80211_set_channel_type(local, sdata,
-+                                                  NL80211_CHAN_HT20));
-+      }
-       ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-       sband = local->hw.wiphy->bands[chan->band];
-@@ -172,6 +181,18 @@ static void __ieee80211_sta_join_ibss(st
-               memcpy(skb_put(skb, ifibss->ie_len),
-                      ifibss->ie, ifibss->ie_len);
-+      /* add HT capability and information IEs */
-+      if (channel_type && sband->ht_cap.ht_supported) {
-+              pos = skb_put(skb, 4 +
-+                                 sizeof(struct ieee80211_ht_cap) +
-+                                 sizeof(struct ieee80211_ht_info));
-+              pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
-+              pos = ieee80211_ie_build_ht_info(pos,
-+                                               &sband->ht_cap,
-+                                               chan,
-+                                               channel_type);
-+      }
-+
-       if (local->hw.queues >= 4) {
-               pos = skb_put(skb, 9);
-               *pos++ = WLAN_EID_VENDOR_SPECIFIC;
-@@ -195,6 +216,7 @@ static void __ieee80211_sta_join_ibss(st
-       bss_change |= BSS_CHANGED_BEACON;
-       bss_change |= BSS_CHANGED_BEACON_ENABLED;
-       bss_change |= BSS_CHANGED_BASIC_RATES;
-+      bss_change |= BSS_CHANGED_HT;
-       bss_change |= BSS_CHANGED_IBSS;
-       sdata->vif.bss_conf.ibss_joined = true;
-       ieee80211_bss_info_change_notify(sdata, bss_change);
-@@ -268,6 +290,7 @@ static void ieee80211_rx_bss_info(struct
-       u64 beacon_timestamp, rx_timestamp;
-       u32 supp_rates = 0;
-       enum ieee80211_band band = rx_status->band;
-+      struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
-       if (elems->ds_params && elems->ds_params_len == 1)
-               freq = ieee80211_channel_to_frequency(elems->ds_params[0],
-@@ -277,7 +300,10 @@ static void ieee80211_rx_bss_info(struct
-       channel = ieee80211_get_channel(local->hw.wiphy, freq);
--      if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
-+      if (!channel ||
-+          channel->flags & (IEEE80211_CHAN_DISABLED ||
-+                            IEEE80211_CHAN_NO_IBSS ||
-+                            IEEE80211_CHAN_RADAR))
-               return;
-       if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
-@@ -315,8 +341,41 @@ static void ieee80211_rx_bss_info(struct
-                                               GFP_ATOMIC);
-               }
--              if (sta && elems->wmm_info)
--                      set_sta_flag(sta, WLAN_STA_WME);
-+              if (sta) {
-+                      if (elems->wmm_info)
-+                              set_sta_flag(sta, WLAN_STA_WME);
-+
-+                      /* we both use HT */
-+                      if (elems->ht_info_elem && elems->ht_cap_elem &&
-+                          sdata->u.ibss.channel_type) {
-+                              enum nl80211_channel_type channel_type =
-+                                      ieee80211_ht_info_to_channel_type(
-+                                                         elems->ht_info_elem);
-+                              struct ieee80211_sta_ht_cap sta_ht_cap_new;
-+
-+                              /*
-+                               * fall back to HT20 if we don't use or use
-+                               * the other extension channel
-+                               */
-+                              if (channel_type > NL80211_CHAN_HT20 &&
-+                                  channel_type != sdata->u.ibss.channel_type)
-+                                      channel_type = NL80211_CHAN_HT20;
-+
-+                              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
-+                                              elems->ht_cap_elem,
-+                                              &sta_ht_cap_new);
-+                              if (memcmp(&sta->sta.ht_cap, &sta_ht_cap_new,
-+                                         sizeof(sta_ht_cap_new))) {
-+                                      memcpy(&sta->sta.ht_cap,
-+                                             &sta_ht_cap_new,
-+                                             sizeof(sta_ht_cap_new));
-+                                      rate_control_rate_update(local, sband,
-+                                                      sta,
-+                                                      IEEE80211_RC_HT_CHANGED,
-+                                                      channel_type);
-+                              }
-+                      }
-+              }
-               rcu_read_unlock();
-       }
-@@ -898,10 +957,15 @@ int ieee80211_ibss_join(struct ieee80211
-       struct sk_buff *skb;
-       skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
--                          36 /* bitrates */ +
--                          34 /* SSID */ +
--                          3  /* DS params */ +
--                          4  /* IBSS params */ +
-+                          sizeof(struct ieee80211_hdr_3addr) +
-+                          12 /* struct ieee80211_mgmt.u.beacon */ +
-+                          2 + IEEE80211_MAX_SSID_LEN /* max SSID */ +
-+                          2 + 8 /* max Supported Rates */ +
-+                          3 /* max DS params */ +
-+                          4 /* IBSS params */ +
-+                          2 + (IEEE80211_MAX_SUPP_RATES - 8) +
-+                          2 + sizeof(struct ieee80211_ht_cap) +
-+                          2 + sizeof(struct ieee80211_ht_info) +
-                           params->ie_len);
-       if (!skb)
-               return -ENOMEM;
-@@ -922,13 +986,15 @@ int ieee80211_ibss_join(struct ieee80211
-       sdata->vif.bss_conf.beacon_int = params->beacon_interval;
-       sdata->u.ibss.channel = params->channel;
-+      sdata->u.ibss.channel_type = params->channel_type;
-       sdata->u.ibss.fixed_channel = params->channel_fixed;
-       /* fix ourselves to that channel now already */
-       if (params->channel_fixed) {
-               sdata->local->oper_channel = params->channel;
--              WARN_ON(!ieee80211_set_channel_type(sdata->local, sdata,
--                                                  NL80211_CHAN_NO_HT));
-+              if (!ieee80211_set_channel_type(sdata->local, sdata,
-+                                             params->channel_type))
-+                      return -EINVAL;
-       }
-       if (params->ie) {
---- a/net/mac80211/ieee80211_i.h
-+++ b/net/mac80211/ieee80211_i.h
-@@ -470,6 +470,7 @@ struct ieee80211_if_ibss {
-       u8 ssid_len, ie_len;
-       u8 *ie;
-       struct ieee80211_channel *channel;
-+      enum nl80211_channel_type channel_type;
-       unsigned long ibss_join_req;
-       /* probe response/beacon for IBSS */
+                           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_
        u32 changed = 0;
        int res;
        u32 hw_reconf_flags = 0;
-@@ -309,27 +308,6 @@ static int ieee80211_do_open(struct net_
+@@ -309,28 +308,6 @@ static int ieee80211_do_open(struct net_
  
        set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
 -                      goto err_del_interface;
 -              }
 -
--              /* no atomic bitop required since STA is not live yet */
--              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);
 -
 -              res = sta_info_insert(sta);
 -              if (res) {
        /*
         * set_multicast_list will be invoked by the networking core
         * which will check whether any increments here were done in
-@@ -356,8 +334,7 @@ static int ieee80211_do_open(struct net_
+@@ -357,8 +334,7 @@ static int ieee80211_do_open(struct net_
        netif_tx_start_all_queues(dev);
  
        return 0;
   err_stop:
        if (!local->open_count)
                drv_stop(local);
-@@ -732,6 +709,70 @@ static void ieee80211_if_setup(struct ne
+@@ -722,6 +698,70 @@ static void ieee80211_if_setup(struct ne
        dev->destructor = free_netdev;
  }
  
 +      sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
 +
 +      if (elems.ht_cap_elem)
-+              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
++              ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 +                              elems.ht_cap_elem, &sta->sta.ht_cap);
 +
 +      if (elems.wmm_param)
  static void ieee80211_iface_work(struct work_struct *work)
  {
        struct ieee80211_sub_if_data *sdata =
-@@ -836,6 +877,9 @@ static void ieee80211_iface_work(struct 
+@@ -826,6 +866,9 @@ static void ieee80211_iface_work(struct 
                                break;
                        ieee80211_mesh_rx_queued_mgmt(sdata, skb);
                        break;
                default:
                        WARN(1, "frame for unexpected interface type");
                        break;
---- a/net/mac80211/mlme.c
-+++ b/net/mac80211/mlme.c
-@@ -1359,9 +1359,6 @@ static void __ieee80211_connection_loss(
-       ieee80211_set_disassoc(sdata, true, true);
-       mutex_unlock(&ifmgd->mtx);
--      mutex_lock(&local->mtx);
--      ieee80211_recalc_idle(local);
--      mutex_unlock(&local->mtx);
-       /*
-        * must be outside lock due to cfg80211,
-        * but that's not a problem.
-@@ -1370,6 +1367,10 @@ static void __ieee80211_connection_loss(
-                                      IEEE80211_STYPE_DEAUTH,
-                                      WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
-                                      NULL, true);
-+
-+      mutex_lock(&local->mtx);
-+      ieee80211_recalc_idle(local);
-+      mutex_unlock(&local->mtx);
- }
- void ieee80211_beacon_connection_loss_work(struct work_struct *work)
-@@ -2136,9 +2137,6 @@ static void ieee80211_sta_connection_los
-       ieee80211_set_disassoc(sdata, true, true);
-       mutex_unlock(&ifmgd->mtx);
--      mutex_lock(&local->mtx);
--      ieee80211_recalc_idle(local);
--      mutex_unlock(&local->mtx);
-       /*
-        * must be outside lock due to cfg80211,
-        * but that's not a problem.
-@@ -2146,6 +2144,11 @@ static void ieee80211_sta_connection_los
-       ieee80211_send_deauth_disassoc(sdata, bssid,
-                       IEEE80211_STYPE_DEAUTH, reason,
-                       NULL, true);
-+
-+      mutex_lock(&local->mtx);
-+      ieee80211_recalc_idle(local);
-+      mutex_unlock(&local->mtx);
-+
-       mutex_lock(&ifmgd->mtx);
- }
---- a/net/mac80211/offchannel.c
-+++ b/net/mac80211/offchannel.c
-@@ -212,8 +212,6 @@ static void ieee80211_hw_roc_start(struc
-               return;
-       }
--      ieee80211_recalc_idle(local);
--
-       if (local->hw_roc_skb) {
-               sdata = IEEE80211_DEV_TO_SUB_IF(local->hw_roc_dev);
-               ieee80211_tx_skb(sdata, local->hw_roc_skb);
-@@ -227,6 +225,8 @@ static void ieee80211_hw_roc_start(struc
-                                         GFP_KERNEL);
-       }
-+      ieee80211_recalc_idle(local);
-+
-       mutex_unlock(&local->mtx);
- }
 --- a/net/mac80211/rx.c
 +++ b/net/mac80211/rx.c
-@@ -2250,7 +2250,9 @@ ieee80211_rx_h_action(struct ieee80211_r
-               if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+@@ -489,12 +489,12 @@ 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;
+               }
+       }
+@@ -2282,6 +2282,7 @@ 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_AP &&
-+                  sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-+                  sdata->vif.type != NL80211_IFTYPE_WDS)
+                   sdata->vif.type != NL80211_IFTYPE_AP &&
++                  sdata->vif.type != NL80211_IFTYPE_WDS &&
+                   sdata->vif.type != NL80211_IFTYPE_ADHOC)
                        break;
  
-               /* verify action_code is present */
-@@ -2465,13 +2467,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2336,7 +2337,7 @@ 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 +2493,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
  
        if (!ieee80211_vif_is_mesh(&sdata->vif) &&
            sdata->vif.type != NL80211_IFTYPE_ADHOC &&
                return RX_DROP_MONITOR;
  
        switch (stype) {
+       case cpu_to_le16(IEEE80211_STYPE_AUTH):
        case cpu_to_le16(IEEE80211_STYPE_BEACON):
        case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
 -              /* process for all: mesh, mlme, ibss */
 +              /* process for all: mesh, mlme, ibss, wds */
                break;
-       case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
-       case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
-@@ -2818,10 +2821,16 @@ static int prepare_for_handlers(struct i
+       case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
+       case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
+@@ -2853,10 +2855,16 @@ 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
-@@ -32,7 +32,6 @@
+@@ -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 @@
+  * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
   *    frames.
-  * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
   * @WLAN_STA_WME: Station is a QoS-STA.
 - * @WLAN_STA_WDS: Station is one of our WDS peers.
   * @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 {
+@@ -62,7 +62,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_AUTHORIZED,
        WLAN_STA_SHORT_PREAMBLE,
-       WLAN_STA_ASSOC_AP,
        WLAN_STA_WME,
 -      WLAN_STA_WDS,
        WLAN_STA_CLEAR_PS_FILT,
        WLAN_STA_MFP,
        WLAN_STA_BLOCK_BA,
---- a/net/wireless/chan.c
-+++ b/net/wireless/chan.c
-@@ -44,9 +44,9 @@ rdev_freq_to_chan(struct cfg80211_regist
-       return chan;
- }
+@@ -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 {
  
--static bool can_beacon_sec_chan(struct wiphy *wiphy,
--                              struct ieee80211_channel *chan,
--                              enum nl80211_channel_type channel_type)
-+bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
-+                                struct ieee80211_channel *chan,
-+                                enum nl80211_channel_type channel_type)
- {
-       struct ieee80211_channel *sec_chan;
-       int diff;
-@@ -75,6 +75,7 @@ static bool can_beacon_sec_chan(struct w
+       bool control_port;
  
-       return true;
- }
-+EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);
- int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
-                     struct wireless_dev *wdev, int freq,
-@@ -109,8 +110,8 @@ int cfg80211_set_freq(struct cfg80211_re
-               switch (channel_type) {
-               case NL80211_CHAN_HT40PLUS:
-               case NL80211_CHAN_HT40MINUS:
--                      if (!can_beacon_sec_chan(&rdev->wiphy, chan,
--                                               channel_type)) {
-+                      if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, chan,
-+                                                        channel_type)) {
-                               printk(KERN_DEBUG
-                                      "cfg80211: Secondary channel not "
-                                      "allowed to initiate communication\n");
---- a/net/wireless/nl80211.c
-+++ b/net/wireless/nl80211.c
-@@ -4604,13 +4604,34 @@ static int nl80211_join_ibss(struct sk_b
-               ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+-      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;
        }
  
--      ibss.channel = ieee80211_get_channel(wiphy,
--              nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
-+      if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
-+              enum nl80211_channel_type channel_type;
-+
-+              channel_type = nla_get_u32(
-+                              info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
-+              if (channel_type > NL80211_CHAN_HT40PLUS)
-+                      return -EINVAL;
-+              ibss.channel_type = channel_type;
-+      } else {
-+              ibss.channel_type = NL80211_CHAN_NO_HT;
-+      }
+--- 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;
 +
-+      ibss.channel = rdev_freq_to_chan(rdev,
-+              nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
-+              ibss.channel_type);
-       if (!ibss.channel ||
-+          ibss.channel->flags & IEEE80211_CHAN_RADAR ||
-           ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
-           ibss.channel->flags & IEEE80211_CHAN_DISABLED)
+               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;
+@@ -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;
+       }
+@@ -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;
+       }
+@@ -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);
+ }
+ 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;
  
-+      /* Both channels should be able to initiate communication */
-+      if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
-+           ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
-+          !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
-+                                        ibss.channel_type))
-+              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
 +
-       ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
-       ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
+ 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);
++
++#else
++
++static inline void ath9k_debug_samp_bb_mac(struct ath_softc *sc)
++{
++}
++
++#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);