mac80211: merge an upstream fix for an aggregation related race condition
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index 2b45719..2119b42 100644 (file)
---- a/drivers/net/wireless/b43/main.c
-+++ b/drivers/net/wireless/b43/main.c
-@@ -320,6 +320,10 @@ static void b43_wireless_core_exit(struc
- static int b43_wireless_core_init(struct b43_wldev *dev);
- static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev);
- static int b43_wireless_core_start(struct b43_wldev *dev);
-+static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
-+                                  struct ieee80211_vif *vif,
-+                                  struct ieee80211_bss_conf *conf,
-+                                  u32 changed);
- static int b43_ratelimit(struct b43_wl *wl)
- {
-@@ -3754,14 +3758,24 @@ static int b43_op_config(struct ieee8021
-       struct ieee80211_conf *conf = &hw->conf;
-       int antenna;
-       int err = 0;
-+      bool reload_bss = false;
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -203,7 +203,7 @@ static void ar9002_hw_iqcalibrate(struct
+                       i);
+               ath_dbg(common, ATH_DBG_CALIBRATE,
+-                      "Orignal: Chn %diq_corr_meas = 0x%08x\n",
++                      "Original: Chn %d iq_corr_meas = 0x%08x\n",
+                       i, ah->totalIqCorrMeas[i]);
+               iqCorrNeg = 0;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -226,7 +226,7 @@ static void ar9003_hw_iqcalibrate(struct
+                       i);
+               ath_dbg(common, ATH_DBG_CALIBRATE,
+-                      "Orignal: Chn %diq_corr_meas = 0x%08x\n",
++                      "Original: Chn %d iq_corr_meas = 0x%08x\n",
+                       i, ah->totalIqCorrMeas[i]);
+               iqCorrNeg = 0;
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+@@ -808,7 +808,8 @@ void ath9k_htc_ani_work(struct work_stru
+       }
+       /* Verify whether we must check ANI */
+-      if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
++      if (ah->config.enable_ani &&
++          (timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
+               aniflag = true;
+               common->ani.checkani_timer = timestamp;
+       }
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -504,7 +504,7 @@ static int ath9k_hw_post_init(struct ath
+               return ecode;
+       }
  
-       mutex_lock(&wl->mutex);
+-      if (!AR_SREV_9100(ah) && !AR_SREV_9340(ah)) {
++      if (ah->config.enable_ani) {
+               ath9k_hw_ani_setup(ah);
+               ath9k_hw_ani_init(ah);
+       }
+@@ -610,6 +610,10 @@ static int __ath9k_hw_init(struct ath_hw
+       if (!AR_SREV_9300_20_OR_LATER(ah))
+               ah->ani_function &= ~ATH9K_ANI_MRC_CCK;
  
-+      dev = wl->current_dev;
++      /* disable ANI for 9340 */
++      if (AR_SREV_9340(ah))
++              ah->config.enable_ani = false;
 +
-       /* Switch the band (if necessary). This might change the active core. */
-       err = b43_switch_band(wl, conf->channel);
-       if (err)
-               goto out_unlock_mutex;
--      dev = wl->current_dev;
+       ath9k_hw_init_mode_regs(ah);
+       if (!ah->is_pciexpress)
+--- 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 |
+@@ -286,7 +286,7 @@ static bool ath_complete_reset(struct at
+                       ath_start_ani(common);
+       }
+-      if (ath9k_hw_ops(ah)->antdiv_comb_conf_get && sc->ant_rx != 3) {
++      if ((ah->caps.hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) && sc->ant_rx != 3) {
+               struct ath_hw_antcomb_conf div_ant_conf;
+               u8 lna_conf;
+@@ -332,7 +332,8 @@ static int ath_reset_internal(struct ath
+               hchan = ah->curchan;
+       }
+-      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))
+@@ -561,7 +562,6 @@ void ath_ani_calibrate(unsigned long dat
+       /* Long calibration runs independently of short calibration. */
+       if ((timestamp - common->ani.longcal_timer) >= long_cal_interval) {
+               longcal = true;
+-              ath_dbg(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies);
+               common->ani.longcal_timer = timestamp;
+       }
+@@ -569,8 +569,6 @@ void ath_ani_calibrate(unsigned long dat
+       if (!common->ani.caldone) {
+               if ((timestamp - common->ani.shortcal_timer) >= short_cal_interval) {
+                       shortcal = true;
+-                      ath_dbg(common, ATH_DBG_ANI,
+-                              "shortcal @%lu\n", jiffies);
+                       common->ani.shortcal_timer = timestamp;
+                       common->ani.resetcal_timer = timestamp;
+               }
+@@ -584,8 +582,9 @@ void ath_ani_calibrate(unsigned long dat
+       }
+       /* Verify whether we must check ANI */
+-      if ((timestamp - common->ani.checkani_timer) >=
+-           ah->config.ani_poll_interval) {
++      if (sc->sc_ah->config.enable_ani
++          && (timestamp - common->ani.checkani_timer) >=
++          ah->config.ani_poll_interval) {
+               aniflag = true;
+               common->ani.checkani_timer = timestamp;
+       }
+@@ -605,6 +604,11 @@ void ath_ani_calibrate(unsigned long dat
+                                               ah->rxchainmask, longcal);
+       }
++      ath_dbg(common, ATH_DBG_ANI,
++              "Calibration @%lu finished: %s %s %s, caldone: %s\n", jiffies,
++              longcal ? "long" : "", shortcal ? "short" : "",
++              aniflag ? "ani" : "", common->ani.caldone ? "true" : "false");
 +
-+      /* Need to reload all settings if the core changed */
-+      if (dev != wl->current_dev) {
-+              dev = wl->current_dev;
-+              changed = ~0;
-+              reload_bss = true;
+       ath9k_ps_restore(sc);
+ set_timer:
+@@ -886,82 +890,6 @@ 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)
+ {
+       int r;
+@@ -1097,6 +1025,9 @@ 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,
+@@ -1138,6 +1069,18 @@ static int ath9k_start(struct ieee80211_
+               goto mutex_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);
 +      }
 +
-       phy = &dev->phy;
++      /*
++       * 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);
  
-       if (conf_is_ht(conf))
-@@ -3822,6 +3836,9 @@ out_mac_enable:
- out_unlock_mutex:
-       mutex_unlock(&wl->mutex);
+       if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
+@@ -1183,6 +1126,13 @@ static void ath9k_tx(struct ieee80211_hw
+               }
+       }
  
-+      if (wl->vif && reload_bss)
-+              b43_op_bss_info_changed(hw, wl->vif, &wl->vif->bss_conf, ~0);
++      /*
++       * 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;
 +
-       return err;
- }
+       if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) {
+               /*
+                * We are using PS-Poll and mac80211 can request TX while in
+@@ -1229,6 +1179,7 @@ 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;
  
-@@ -3910,7 +3927,8 @@ static void b43_op_bss_info_changed(stru
-       if (changed & BSS_CHANGED_BEACON_INT &&
-           (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
-            b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
--           b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
-+           b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) &&
-+          conf->beacon_int)
-               b43_set_beacon_int(dev, conf->beacon_int);
+       mutex_lock(&sc->mutex);
  
-       if (changed & BSS_CHANGED_BASIC_RATES)
-@@ -4691,6 +4709,9 @@ static int b43_op_add_interface(struct i
-  out_mutex_unlock:
-       mutex_unlock(&wl->mutex);
+@@ -1259,35 +1210,45 @@ static void ath9k_stop(struct ieee80211_
+        * before setting the invalid flag. */
+       ath9k_hw_disable_interrupts(ah);
  
-+      if (err == 0)
-+              b43_op_bss_info_changed(hw, vif, &vif->bss_conf, ~0);
+-      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);
 +
-       return err;
- }
++      /* 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);
  
-@@ -4761,6 +4782,9 @@ static int b43_op_start(struct ieee80211
-  out_mutex_unlock:
-       mutex_unlock(&wl->mutex);
+       if (sc->rx.frag) {
+               dev_kfree_skb_any(sc->rx.frag);
+               sc->rx.frag = NULL;
+       }
  
-+      /* reload configuration */
-+      b43_op_config(hw, ~0);
-+
-       return err;
+-      /* 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);
+@@ -1627,8 +1588,8 @@ 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);
+       /*
+@@ -1639,13 +1600,8 @@ 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);
+       }
+       /*
+@@ -1752,18 +1708,12 @@ 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;
  }
+@@ -2331,9 +2281,6 @@ static void ath9k_flush(struct ieee80211
+               return;
+       }
  
-@@ -4917,10 +4941,18 @@ out:
-       if (err)
-               wl->current_dev = NULL; /* Failed to init the dev. */
-       mutex_unlock(&wl->mutex);
--      if (err)
-+
-+      if (err) {
-               b43err(wl, "Controller restart FAILED\n");
--      else
--              b43info(wl, "Controller restarted\n");
-+              return;
+-      if (drop)
+-              timeout = 1;
+-
+       for (j = 0; j < timeout; j++) {
+               bool npend = false;
+@@ -2351,21 +2298,22 @@ 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);
 +      }
-+
-+      /* reload configuration */
-+      b43_op_config(wl->hw, ~0);
-+      if (wl->vif)
-+              b43_op_bss_info_changed(wl->hw, wl->vif, &wl->vif->bss_conf, ~0);
-+
-+      b43info(wl, "Controller restarted\n");
+-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;
  }
  
- static int b43_setup_bands(struct b43_wldev *dev,
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -1954,7 +1954,7 @@ static void ath_tx_complete(struct ath_s
+               skb_pull(skb, padsize);
+       }
+-      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/linux/nl80211.h
++++ b/include/linux/nl80211.h
+@@ -2785,9 +2785,11 @@ enum nl80211_ap_sme_features {
+  * @NL80211_FEATURE_SK_TX_STATUS: This driver supports reflecting back
+  *    TX status to the socket error queue when requested with the
+  *    socket option.
++ * @NL80211_FEATURE_HT_IBSS: This driver supports IBSS with HT datarates.
+  */
+ enum nl80211_feature_flags {
+       NL80211_FEATURE_SK_TX_STATUS    = 1 << 0,
++      NL80211_FEATURE_HT_IBSS         = 1 << 1,
+ };
+ /**
+--- a/include/net/cfg80211.h
++++ b/include/net/cfg80211.h
+@@ -1149,6 +1149,7 @@ 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;
+@@ -3270,6 +3271,16 @@ void cfg80211_report_obss_beacon(struct 
+                                const u8 *frame, size_t len,
+                                int freq, gfp_t gfp);
++/*
++ * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
++ * @wiphy: the wiphy
++ * @chan: main channel
++ * @channel_type: HT mode
++ */
++int 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/net/mac80211/agg-rx.c
 +++ b/net/mac80211/agg-rx.c
-@@ -184,6 +184,8 @@ static void ieee80211_send_addba_resp(st
+@@ -185,6 +185,10 @@ static void ieee80211_send_addba_resp(st
                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);
 +      else if (sdata->vif.type == NL80211_IFTYPE_WDS)
 +              memcpy(mgmt->bssid, da, ETH_ALEN);
  
                                          IEEE80211_STYPE_ACTION);
 --- a/net/mac80211/agg-tx.c
 +++ b/net/mac80211/agg-tx.c
-@@ -79,7 +79,8 @@ static void ieee80211_send_addba_request
-       memcpy(mgmt->da, da, ETH_ALEN);
+@@ -79,10 +79,13 @@ 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)
-+          sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+           sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+-          sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
++          sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
 +          sdata->vif.type == NL80211_IFTYPE_WDS)
                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);
-@@ -398,7 +399,8 @@ int ieee80211_start_tx_ba_session(struct
++      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);
+@@ -319,6 +322,38 @@ ieee80211_wake_queue_agg(struct ieee8021
+       __release(agg_queue);
+ }
++/*
++ * splice packets from the STA's pending to the local pending,
++ * requires a call to ieee80211_agg_splice_finish later
++ */
++static void __acquires(agg_queue)
++ieee80211_agg_splice_packets(struct ieee80211_local *local,
++                           struct tid_ampdu_tx *tid_tx, u16 tid)
++{
++      int queue = ieee80211_ac_from_tid(tid);
++      unsigned long flags;
++
++      ieee80211_stop_queue_agg(local, tid);
++
++      if (WARN(!tid_tx, "TID %d gone but expected when splicing aggregates"
++                        " from the pending queue\n", tid))
++              return;
++
++      if (!skb_queue_empty(&tid_tx->pending)) {
++              spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
++              /* copy over remaining packets */
++              skb_queue_splice_tail_init(&tid_tx->pending,
++                                         &local->pending[queue]);
++              spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
++      }
++}
++
++static void __releases(agg_queue)
++ieee80211_agg_splice_finish(struct ieee80211_local *local, u16 tid)
++{
++      ieee80211_wake_queue_agg(local, tid);
++}
++
+ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid)
+ {
+       struct tid_ampdu_tx *tid_tx;
+@@ -330,19 +365,17 @@ void ieee80211_tx_ba_session_handle_star
+       tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
+       /*
+-       * While we're asking the driver about the aggregation,
+-       * stop the AC queue so that we don't have to worry
+-       * about frames that came in while we were doing that,
+-       * which would require us to put them to the AC pending
+-       * afterwards which just makes the code more complex.
++       * Start queuing up packets for this aggregation session.
++       * We're going to release them once the driver is OK with
++       * that.
+        */
+-      ieee80211_stop_queue_agg(local, tid);
+-
+       clear_bit(HT_AGG_STATE_WANT_START, &tid_tx->state);
+       /*
+-       * make sure no packets are being processed to get
+-       * valid starting sequence number
++       * Make sure no packets are being processed. This ensures that
++       * we have a valid starting sequence number and that in-flight
++       * packets have been flushed out and no packets for this TID
++       * will go into the driver during the ampdu_action call.
         */
+       synchronize_net();
+@@ -356,10 +389,11 @@ void ieee80211_tx_ba_session_handle_star
+                                       " tid %d\n", tid);
+ #endif
+               spin_lock_bh(&sta->lock);
++              ieee80211_agg_splice_packets(local, tid_tx, tid);
+               ieee80211_assign_tid_tx(sta, tid, NULL);
++              ieee80211_agg_splice_finish(local, tid);
+               spin_unlock_bh(&sta->lock);
+-              ieee80211_wake_queue_agg(local, tid);
+ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,40))
+               kfree_rcu(tid_tx, rcu_head);
+ #else
+@@ -368,9 +402,6 @@ void ieee80211_tx_ba_session_handle_star
+               return;
+       }
+-      /* we can take packets again now */
+-      ieee80211_wake_queue_agg(local, tid);
+-
+       /* activate the timer for the recipient's addBA response */
+       mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL);
+ #ifdef CONFIG_MAC80211_HT_DEBUG
+@@ -437,7 +468,9 @@ int ieee80211_start_tx_ba_session(struct
        if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+           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_WDS)
++          sdata->vif.type != NL80211_IFTYPE_WDS &&
++          sdata->vif.type != NL80211_IFTYPE_ADHOC)
                return -EINVAL;
  
-       if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) {
+       if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) {
+@@ -448,6 +481,27 @@ int ieee80211_start_tx_ba_session(struct
+               return -EINVAL;
+       }
++      /*
++       * 802.11n-2009 11.5.1.1: If the initiating STA is an HT STA, is a
++       * member of an IBSS, and has no other existing Block Ack agreement
++       * with the recipient STA, then the initiating STA shall transmit a
++       * Probe Request frame to the recipient STA and shall not transmit an
++       * ADDBA Request frame unless it receives a Probe Response frame
++       * from the recipient within dot11ADDBAFailureTimeout.
++       *
++       * The probe request mechanism for ADDBA is currently not implemented,
++       * but we only build up Block Ack session with HT STAs. This information
++       * is set when we receive a bss info from a probe response or a beacon.
++       */
++      if (sta->sdata->vif.type == NL80211_IFTYPE_ADHOC &&
++          !sta->sta.ht_cap.ht_supported) {
++#ifdef CONFIG_MAC80211_HT_DEBUG
++              printk(KERN_DEBUG "BA request denied - IBSS STA %pM"
++                     "does not advertise HT support\n", pubsta->addr);
++#endif /* CONFIG_MAC80211_HT_DEBUG */
++              return -EINVAL;
++      }
++
+       spin_lock_bh(&sta->lock);
+       /* we have tried too many times, receiver does not want A-MPDU */
+@@ -508,38 +562,6 @@ int ieee80211_start_tx_ba_session(struct
+ }
+ EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
+-/*
+- * splice packets from the STA's pending to the local pending,
+- * requires a call to ieee80211_agg_splice_finish later
+- */
+-static void __acquires(agg_queue)
+-ieee80211_agg_splice_packets(struct ieee80211_local *local,
+-                           struct tid_ampdu_tx *tid_tx, u16 tid)
+-{
+-      int queue = ieee80211_ac_from_tid(tid);
+-      unsigned long flags;
+-
+-      ieee80211_stop_queue_agg(local, tid);
+-
+-      if (WARN(!tid_tx, "TID %d gone but expected when splicing aggregates"
+-                        " from the pending queue\n", tid))
+-              return;
+-
+-      if (!skb_queue_empty(&tid_tx->pending)) {
+-              spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+-              /* copy over remaining packets */
+-              skb_queue_splice_tail_init(&tid_tx->pending,
+-                                         &local->pending[queue]);
+-              spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+-      }
+-}
+-
+-static void __releases(agg_queue)
+-ieee80211_agg_splice_finish(struct ieee80211_local *local, u16 tid)
+-{
+-      ieee80211_wake_queue_agg(local, tid);
+-}
+-
+ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
+                                        struct sta_info *sta, u16 tid)
+ {
 --- a/net/mac80211/debugfs_sta.c
 +++ b/net/mac80211/debugfs_sta.c
-@@ -59,7 +59,7 @@ static ssize_t sta_flags_read(struct fil
-       char buf[100];
-       struct sta_info *sta = file->private_data;
-       u32 staflags = get_sta_flags(sta);
--      int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
-+      int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
-               staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
-               staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
-               staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "",
-@@ -67,7 +67,6 @@ static ssize_t sta_flags_read(struct fil
-               staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
-               staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
-               staflags & WLAN_STA_WME ? "WME\n" : "",
--              staflags & WLAN_STA_WDS ? "WDS\n" : "",
-               staflags & WLAN_STA_MFP ? "MFP\n" : "");
-       return simple_read_from_buffer(userbuf, count, ppos, buf, res);
- }
+@@ -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",
+                           TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
+                           TEST(PS_DRIVER), TEST(AUTHORIZED),
+                           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
+@@ -47,7 +47,9 @@ void ieee80211_apply_htcap_overrides(str
+       int i;
+       if (sdata->vif.type != NL80211_IFTYPE_STATION) {
+-              WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION);
++              /* AP interfaces call this code when adding new stations,
++               * so just silently ignore non station interfaces.
++               */
+               return;
+       }
+@@ -282,6 +284,8 @@ 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 +181,19 @@ 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->ht_cap,
++                                              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 +217,7 @@ 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 +291,8 @@ 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];
++      bool rates_updated = false;
+       if (elems->ds_params && elems->ds_params_len == 1)
+               freq = ieee80211_channel_to_frequency(elems->ds_params[0],
+@@ -307,7 +332,7 @@ static void ieee80211_rx_bss_info(struct
+                                               prev_rates,
+                                               sta->sta.supp_rates[band]);
+ #endif
+-                                      rate_control_rate_init(sta);
++                                      rates_updated = true;
+                               }
+                       } else
+                               sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid,
+@@ -318,6 +343,39 @@ static void ieee80211_rx_bss_info(struct
+               if (sta && elems->wmm_info)
+                       set_sta_flag(sta, WLAN_STA_WME);
++              if (sta && elems->ht_info_elem && elems->ht_cap_elem &&
++                  sdata->u.ibss.channel_type != NL80211_CHAN_NO_HT) {
++                      /* we both use HT */
++                      struct ieee80211_sta_ht_cap sta_ht_cap_new;
++                      enum nl80211_channel_type channel_type =
++                              ieee80211_ht_info_to_channel_type(
++                                                      elems->ht_info_elem);
++
++                      ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
++                                                        elems->ht_cap_elem,
++                                                        &sta_ht_cap_new);
++
++                      /*
++                       * fall back to HT20 if we don't use or use
++                       * the other extension channel
++                       */
++                      if ((channel_type == NL80211_CHAN_HT40MINUS ||
++                           channel_type == NL80211_CHAN_HT40PLUS) &&
++                          channel_type != sdata->u.ibss.channel_type)
++                              sta_ht_cap_new.cap &=
++                                      ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
++
++                      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));
++                              rates_updated = true;
++                      }
++              }
++
++              if (sta && rates_updated)
++                      rate_control_rate_init(sta);
++
+               rcu_read_unlock();
+       }
+@@ -896,12 +954,18 @@ int ieee80211_ibss_join(struct ieee80211
+                       struct cfg80211_ibss_params *params)
+ {
+       struct sk_buff *skb;
++      u32 changed = 0;
+       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) {
+@@ -951,6 +1017,23 @@ int ieee80211_ibss_join(struct ieee80211
+       ieee80211_recalc_idle(sdata->local);
+       mutex_unlock(&sdata->local->mtx);
++      /*
++       * 802.11n-2009 9.13.3.1: In an IBSS, the HT Protection field is
++       * reserved, but an HT STA shall protect HT transmissions as though
++       * the HT Protection field were set to non-HT mixed mode.
++       *
++       * In an IBSS, the RIFS Mode field of the HT Operation element is
++       * also reserved, but an HT STA shall operate as though this field
++       * were set to 1.
++       */
++
++      sdata->vif.bss_conf.ht_operation_mode |=
++                IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
++              | IEEE80211_HT_PARAM_RIFS_MODE;
++
++      changed |= BSS_CHANGED_HT;
++      ieee80211_bss_info_change_notify(sdata, changed);
++
+       ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+       return 0;
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -474,6 +474,7 @@ 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 */
 --- 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;
-@@ -290,27 +289,6 @@ static int ieee80211_do_open(struct net_
+@@ -309,27 +308,6 @@ static int ieee80211_do_open(struct net_
  
        set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
 -                      goto err_del_interface;
 -              }
 -
--              /* no locking required since STA is not live yet */
--              sta->flags |= WLAN_STA_AUTHORIZED;
+-              /* no atomic bitop required since STA is not live yet */
+-              set_sta_flag(sta, WLAN_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
-@@ -344,8 +322,7 @@ static int ieee80211_do_open(struct net_
+@@ -356,8 +334,7 @@ static int ieee80211_do_open(struct net_
        netif_tx_start_all_queues(dev);
  
        return 0;
 - err_del_interface:
--      drv_remove_interface(local, &sdata->vif);
+-      drv_remove_interface(local, sdata);
 +
   err_stop:
        if (!local->open_count)
                drv_stop(local);
-@@ -718,6 +695,70 @@ static void ieee80211_if_setup(struct ne
+@@ -719,6 +696,70 @@ 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)
-+              set_sta_flags(sta, WLAN_STA_WME);
++              set_sta_flag(sta, WLAN_STA_WME);
 +
 +      if (new) {
-+              sta->flags = WLAN_STA_AUTHORIZED;
++              set_sta_flag(sta, WLAN_STA_AUTHORIZED);
 +              rate_control_rate_init(sta);
 +              sta_info_insert_rcu(sta);
 +      }
  static void ieee80211_iface_work(struct work_struct *work)
  {
        struct ieee80211_sub_if_data *sdata =
-@@ -822,6 +863,9 @@ static void ieee80211_iface_work(struct 
+@@ -823,6 +864,9 @@ 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/main.c
++++ b/net/mac80211/main.c
+@@ -574,7 +574,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(
+                       WIPHY_FLAG_OFFCHAN_TX |
+                       WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+-      wiphy->features = NL80211_FEATURE_SK_TX_STATUS;
++      wiphy->features = NL80211_FEATURE_SK_TX_STATUS |
++                        NL80211_FEATURE_HT_IBSS;
+       if (!ops->set_key)
+               wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 --- a/net/mac80211/rx.c
 +++ b/net/mac80211/rx.c
-@@ -2147,7 +2147,8 @@ ieee80211_rx_h_action(struct ieee80211_r
-                */
+@@ -2237,7 +2237,9 @@ ieee80211_rx_h_action(struct ieee80211_r
                if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+                   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_WDS)
++                  sdata->vif.type != NL80211_IFTYPE_WDS &&
++                  sdata->vif.type != NL80211_IFTYPE_ADHOC)
                        break;
  
                /* verify action_code is present */
-@@ -2345,13 +2346,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2452,13 +2454,14 @@ 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_DEAUTH):
        case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
-@@ -2692,10 +2694,16 @@ static int prepare_for_handlers(struct i
+@@ -2796,19 +2799,32 @@ static int prepare_for_handlers(struct i
+                               return 0;
+               } else if (!ieee80211_bssid_match(bssid,
+                                       sdata->vif.addr)) {
++                      /*
++                       * Accept public action frames even when the
++                       * BSSID doesn't match, this is used for P2P
++                       * and location updates. Note that mac80211
++                       * itself never looks at these frames.
++                       */
+                       if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
+-                          !ieee80211_is_beacon(hdr->frame_control) &&
+-                          !(ieee80211_is_action(hdr->frame_control) &&
+-                            sdata->vif.p2p))
++                          ieee80211_is_public_action(hdr, skb->len))
++                              return 1;
++                      if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
++                          !ieee80211_is_beacon(hdr->frame_control))
+                               return 0;
+                       status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
                }
                break;
        case NL80211_IFTYPE_WDS:
 --- a/net/mac80211/sta_info.h
 +++ b/net/mac80211/sta_info.h
 @@ -31,7 +31,6 @@
+  * @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.
-@@ -54,7 +53,6 @@ enum ieee80211_sta_info_flags {
-       WLAN_STA_SHORT_PREAMBLE = 1<<4,
-       WLAN_STA_ASSOC_AP       = 1<<5,
-       WLAN_STA_WME            = 1<<6,
--      WLAN_STA_WDS            = 1<<7,
-       WLAN_STA_CLEAR_PS_FILT  = 1<<9,
-       WLAN_STA_MFP            = 1<<10,
-       WLAN_STA_BLOCK_BA       = 1<<11,
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -551,7 +551,8 @@ static void ath_tx_complete_aggr(struct 
-               if (clear_filter)
-                       tid->ac->clear_ps_filter = true;
-               list_splice(&bf_pending, &tid->buf_q);
--              ath_tx_queue_tid(txq, tid);
-+              if (!an->sleeping)
-+                      ath_tx_queue_tid(txq, tid);
-               spin_unlock_bh(&txq->axq_lock);
+@@ -60,7 +59,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_AUTHORIZED,
+       WLAN_STA_SHORT_PREAMBLE,
+       WLAN_STA_WME,
+-      WLAN_STA_WDS,
+       WLAN_STA_CLEAR_PS_FILT,
+       WLAN_STA_MFP,
+       WLAN_STA_BLOCK_BA,
+--- a/net/mac80211/util.c
++++ b/net/mac80211/util.c
+@@ -1612,6 +1612,11 @@ u8 *ieee80211_ie_build_ht_info(u8 *pos,
        }
-@@ -643,8 +644,10 @@ static u32 ath_lookup_rate(struct ath_so
-  * meet the minimum required mpdudensity.
-  */
- static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
--                                struct ath_buf *bf, u16 frmlen)
-+                                struct ath_buf *bf, u16 frmlen,
-+                                bool first_subfrm)
- {
-+#define FIRST_DESC_NDELIMS 60
-       struct sk_buff *skb = bf->bf_mpdu;
-       struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-       u32 nsymbits, nsymbols;
-@@ -667,6 +670,13 @@ static int ath_compute_num_delims(struct
-               ndelim += ATH_AGGR_ENCRYPTDELIM;
-       /*
-+       * Add delimiter when using RTS/CTS with aggregation
-+       * and non enterprise AR9003 card
-+       */
-+      if (first_subfrm)
-+              ndelim = max(ndelim, FIRST_DESC_NDELIMS);
+       if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+               ht_info->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
 +
 +      /*
-        * Convert desired mpdu density from microeconds to bytes based
-        * on highest rate in rate series (i.e. first rate) to determine
-        * required minimum length for subframe. Take into account
-@@ -755,7 +765,6 @@ static enum ATH_AGGR_STATUS ath_tx_form_
-                       status = ATH_AGGR_LIMITED;
-                       break;
-               }
--              nframes++;
-               /* add padding for previous frame to aggregation length */
-               al += bpad + al_delta;
-@@ -764,9 +773,11 @@ static enum ATH_AGGR_STATUS ath_tx_form_
-                * Get the delimiters needed to meet the MPDU
-                * density for this node.
-                */
--              ndelim = ath_compute_num_delims(sc, tid, bf_first, fi->framelen);
-+              ndelim = ath_compute_num_delims(sc, tid, bf_first, fi->framelen,
-+                                              !nframes);
-               bpad = PADBYTES(al_delta) + (ndelim << 2);
-+              nframes++;
-               bf->bf_next = NULL;
-               ath9k_hw_set_desc_link(sc->sc_ah, bf->bf_desc, 0);
-@@ -1413,7 +1424,8 @@ static void ath_tx_send_ampdu(struct ath
-                */
-               TX_STAT_INC(txctl->txq->axq_qnum, a_queued_sw);
-               list_add_tail(&bf->list, &tid->buf_q);
--              ath_tx_queue_tid(txctl->txq, tid);
-+              if (!txctl->an || !txctl->an->sleeping)
-+                      ath_tx_queue_tid(txctl->txq, tid);
-               return;
-       }
++       * Note: According to 802.11n-2009 9.13.3.1, HT Protection field and
++       * RIFS Mode are reserved in IBSS mode, therefore keep them at 0
++       */
+       ht_info->operation_mode = 0x0000;
+       ht_info->stbc_param = 0x0000;
  
-@@ -1572,9 +1584,9 @@ u8 ath_txchainmask_reduction(struct ath_
- {
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath9k_channel *curchan = ah->curchan;
--      if ((sc->sc_flags & SC_OP_ENABLE_APM) &&
--                      (curchan->channelFlags & CHANNEL_5GHZ) &&
--                      (chainmask == 0x7) && (rate < 0x90))
-+      if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) &&
-+          (curchan->channelFlags & CHANNEL_5GHZ) &&
-+          (chainmask == 0x7) && (rate < 0x90))
-               return 0x3;
-       else
-               return chainmask;
---- a/include/net/cfg80211.h
-+++ b/include/net/cfg80211.h
-@@ -421,6 +421,7 @@ struct station_parameters {
-  * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
-  * @STATION_INFO_BSS_PARAM: @bss_param filled
-  * @STATION_INFO_CONNECTED_TIME: @connected_time filled
-+ * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
+--- a/net/wireless/chan.c
++++ b/net/wireless/chan.c
+@@ -6,6 +6,7 @@
+  * Copyright 2009     Johannes Berg <johannes@sipsolutions.net>
   */
- enum station_info_flags {
-       STATION_INFO_INACTIVE_TIME      = 1<<0,
-@@ -439,7 +440,8 @@ enum station_info_flags {
-       STATION_INFO_SIGNAL_AVG         = 1<<13,
-       STATION_INFO_RX_BITRATE         = 1<<14,
-       STATION_INFO_BSS_PARAM          = 1<<15,
--      STATION_INFO_CONNECTED_TIME     = 1<<16
-+      STATION_INFO_CONNECTED_TIME     = 1<<16,
-+      STATION_INFO_ASSOC_REQ_IES      = 1<<17
- };
- /**
---- a/net/wireless/nl80211.c
-+++ b/net/wireless/nl80211.c
-@@ -2236,7 +2236,7 @@ static int nl80211_send_station(struct s
-       }
-       nla_nest_end(msg, sinfoattr);
--      if (sinfo->assoc_req_ies)
-+      if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
-               NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
-                       sinfo->assoc_req_ies);
---- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-@@ -415,36 +415,12 @@ static void ar9003_hw_set11n_ratescenari
- static void ar9003_hw_set11n_aggr_first(struct ath_hw *ah, void *ds,
-                                       u32 aggrLen)
- {
--#define FIRST_DESC_NDELIMS 60
-       struct ar9003_txc *ads = (struct ar9003_txc *) ds;
-       ads->ctl12 |= (AR_IsAggr | AR_MoreAggr);
--      if (ah->ent_mode & AR_ENT_OTP_MPSD) {
--              u32 ctl17, ndelim;
--              /*
--               * Add delimiter when using RTS/CTS with aggregation
--               * and non enterprise AR9003 card
--               */
--              ctl17 = ads->ctl17;
--              ndelim = MS(ctl17, AR_PadDelim);
--
--              if (ndelim < FIRST_DESC_NDELIMS) {
--                      aggrLen += (FIRST_DESC_NDELIMS - ndelim) * 4;
--                      ndelim = FIRST_DESC_NDELIMS;
--              }
--
--              ctl17 &= ~AR_AggrLen;
--              ctl17 |= SM(aggrLen, AR_AggrLen);
--
--              ctl17 &= ~AR_PadDelim;
--              ctl17 |= SM(ndelim, AR_PadDelim);
--
--              ads->ctl17 = ctl17;
--      } else {
--              ads->ctl17 &= ~AR_AggrLen;
--              ads->ctl17 |= SM(aggrLen, AR_AggrLen);
--      }
-+      ads->ctl17 &= ~AR_AggrLen;
-+      ads->ctl17 |= SM(aggrLen, AR_AggrLen);
- }
- static void ar9003_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds,
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -565,7 +565,6 @@ set_timer:
- static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta)
- {
-       struct ath_node *an;
--      struct ath_hw *ah = sc->sc_ah;
-       an = (struct ath_node *)sta->drv_priv;
- #ifdef CONFIG_ATH9K_DEBUGFS
-@@ -574,9 +573,6 @@ static void ath_node_attach(struct ath_s
-       spin_unlock(&sc->nodes_lock);
-       an->sta = sta;
- #endif
--      if ((ah->caps.hw_caps) & ATH9K_HW_CAP_APM)
--              sc->sc_flags |= SC_OP_ENABLE_APM;
--
-       if (sc->sc_flags & SC_OP_TXAGGR) {
-               ath_tx_node_init(sc, an);
-               an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
-@@ -826,11 +822,9 @@ irqreturn_t ath_isr(int irq, void *dev)
-       if (status & ATH9K_INT_TXURN)
-               ath9k_hw_updatetxtriglevel(ah, true);
--      if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--              if (status & ATH9K_INT_RXEOL) {
--                      ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
--                      ath9k_hw_set_interrupts(ah, ah->imask);
--              }
-+      if (status & ATH9K_INT_RXEOL) {
-+              ah->imask &= ~(ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
-+              ath9k_hw_set_interrupts(ah, ah->imask);
-       }
  
-       if (status & ATH9K_INT_MIB) {
-@@ -1680,6 +1674,7 @@ static int ath9k_config(struct ieee80211
-       if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
-               struct ieee80211_channel *curchan = hw->conf.channel;
-+              struct ath9k_channel old_chan;
-               int pos = curchan->hw_value;
-               int old_pos = -1;
-               unsigned long flags;
-@@ -1696,15 +1691,25 @@ static int ath9k_config(struct ieee80211
-                       "Set channel: %d MHz type: %d\n",
-                       curchan->center_freq, conf->channel_type);
--              ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
--                                        curchan, conf->channel_type);
--
-               /* update survey stats for the old channel before switching */
-               spin_lock_irqsave(&common->cc_lock, flags);
-               ath_update_survey_stats(sc);
-               spin_unlock_irqrestore(&common->cc_lock, flags);
++#include <linux/export.h>
+ #include <net/cfg80211.h>
+ #include "core.h"
  
-               /*
-+               * Preserve the current channel values, before updating
-+               * the same channel
-+               */
-+              if (old_pos == pos) {
-+                      memcpy(&old_chan, &sc->sc_ah->channels[pos],
-+                              sizeof(struct ath9k_channel));
-+                      ah->curchan = &old_chan;
-+              }
-+
-+              ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
-+                                        curchan, conf->channel_type);
-+
-+              /*
-                * If the operating channel changes, change the survey in-use flags
-                * along with it.
-                * Reset the survey data for the new channel, unless we're switching
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -761,7 +761,7 @@ static struct ath_buf *ath_get_next_rx_b
-        * on.  All this is necessary because of our use of
-        * a self-linked list to avoid rx overruns.
-        */
--      ret = ath9k_hw_rxprocdesc(ah, ds, rs, 0);
-+      ret = ath9k_hw_rxprocdesc(ah, ds, rs);
-       if (ret == -EINPROGRESS) {
-               struct ath_rx_status trs;
-               struct ath_buf *tbf;
-@@ -787,7 +787,7 @@ static struct ath_buf *ath_get_next_rx_b
-                */
-               tds = tbf->bf_desc;
--              ret = ath9k_hw_rxprocdesc(ah, tds, &trs, 0);
-+              ret = ath9k_hw_rxprocdesc(ah, tds, &trs);
-               if (ret == -EINPROGRESS)
-                       return NULL;
-       }
-@@ -1978,5 +1978,10 @@ requeue:
-       spin_unlock_bh(&sc->rx.rxbuflock);
-+      if (!(ah->imask & ATH9K_INT_RXEOL)) {
-+              ah->imask |= (ATH9K_INT_RXEOL | ATH9K_INT_RXORN);
-+              ath9k_hw_set_interrupts(ah, ah->imask);
-+      }
-+
-       return 0;
+@@ -44,9 +45,9 @@ rdev_freq_to_chan(struct cfg80211_regist
+       return chan;
  }
---- a/drivers/net/wireless/ath/ath9k/mac.c
-+++ b/drivers/net/wireless/ath/ath9k/mac.c
-@@ -345,21 +345,8 @@ int ath9k_hw_setuptxqueue(struct ath_hw 
-       }
-       memset(qi, 0, sizeof(struct ath9k_tx_queue_info));
-       qi->tqi_type = type;
--      if (qinfo == NULL) {
--              qi->tqi_qflags =
--                      TXQ_FLAG_TXOKINT_ENABLE
--                      | TXQ_FLAG_TXERRINT_ENABLE
--                      | TXQ_FLAG_TXDESCINT_ENABLE | TXQ_FLAG_TXURNINT_ENABLE;
--              qi->tqi_aifs = INIT_AIFS;
--              qi->tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
--              qi->tqi_cwmax = INIT_CWMAX;
--              qi->tqi_shretry = INIT_SH_RETRY;
--              qi->tqi_lgretry = INIT_LG_RETRY;
--              qi->tqi_physCompBuf = 0;
--      } else {
--              qi->tqi_physCompBuf = qinfo->tqi_physCompBuf;
--              (void) ath9k_hw_set_txq_props(ah, q, qinfo);
--      }
-+      qi->tqi_physCompBuf = qinfo->tqi_physCompBuf;
-+      (void) ath9k_hw_set_txq_props(ah, q, qinfo);
-       return q;
- }
-@@ -564,7 +551,7 @@ bool ath9k_hw_resettxqueue(struct ath_hw
- EXPORT_SYMBOL(ath9k_hw_resettxqueue);
  
- int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
--                      struct ath_rx_status *rs, u64 tsf)
-+                      struct ath_rx_status *rs)
+-static bool can_beacon_sec_chan(struct wiphy *wiphy,
+-                              struct ieee80211_channel *chan,
+-                              enum nl80211_channel_type channel_type)
++int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
++                                struct ieee80211_channel *chan,
++                                enum nl80211_channel_type channel_type)
  {
-       struct ar5416_desc ads;
-       struct ar5416_desc *adsp = AR5416DESC(ds);
---- a/drivers/net/wireless/ath/ath9k/mac.h
-+++ b/drivers/net/wireless/ath/ath9k/mac.h
-@@ -687,7 +687,7 @@ int ath9k_hw_setuptxqueue(struct ath_hw 
- bool ath9k_hw_releasetxqueue(struct ath_hw *ah, u32 q);
- bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q);
- int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds,
--                      struct ath_rx_status *rs, u64 tsf);
-+                      struct ath_rx_status *rs);
- void ath9k_hw_setuprxdesc(struct ath_hw *ah, struct ath_desc *ds,
-                         u32 size, u32 flags);
- bool ath9k_hw_setrxabort(struct ath_hw *ah, bool set);
---- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-@@ -839,20 +839,8 @@ static bool ar9003_hw_init_cal(struct at
-                              struct ath9k_channel *chan)
- {
-       struct ath_common *common = ath9k_hw_common(ah);
--      struct ath9k_hw_capabilities *pCap = &ah->caps;
--      int val;
-       bool txiqcal_done = false;
--      val = REG_READ(ah, AR_ENT_OTP);
--      ath_dbg(common, ATH_DBG_CALIBRATE, "ath9k: AR_ENT_OTP 0x%x\n", val);
--
--      /* Configure rx/tx chains before running AGC/TxiQ cals */
--      if (val & AR_ENT_OTP_CHAIN2_DISABLE)
--              ar9003_hw_set_chain_masks(ah, 0x3, 0x3);
--      else
--              ar9003_hw_set_chain_masks(ah, pCap->rx_chainmask,
--                                        pCap->tx_chainmask);
--
-       /* Do Tx IQ Calibration */
-       REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1,
-                     AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT,
-@@ -887,9 +875,6 @@ static bool ar9003_hw_init_cal(struct at
-       if (txiqcal_done)
-               ar9003_hw_tx_iq_cal_post_proc(ah);
--      /* Revert chainmasks to their original values before NF cal */
--      ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
--
-       ath9k_hw_start_nfcal(ah, true);
-       /* Initialize list pointers */
---- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
-@@ -540,7 +540,7 @@ static void ar9003_hw_init_bb(struct ath
-       udelay(synthDelay + BASE_ACTIVATE_DELAY);
- }
+       struct ieee80211_channel *sec_chan;
+       int diff;
+@@ -75,6 +76,7 @@ static bool can_beacon_sec_chan(struct w
  
--void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
-+static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
- {
-       switch (rx) {
-       case 0x5:
---- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
-@@ -1124,6 +1124,4 @@
- #define AR_PHY_CL_TAB_CL_GAIN_MOD             0x1f
- #define AR_PHY_CL_TAB_CL_GAIN_MOD_S           0
--void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx);
--
- #endif  /* AR9003_PHY_H */
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -558,8 +558,7 @@ struct ath_ant_comb {
- #define SC_OP_BT_PRIORITY_DETECTED   BIT(12)
- #define SC_OP_BT_SCAN              BIT(13)
- #define SC_OP_ANI_RUN              BIT(14)
--#define SC_OP_ENABLE_APM           BIT(15)
--#define SC_OP_PRIM_STA_VIF         BIT(16)
-+#define SC_OP_PRIM_STA_VIF         BIT(15)
- /* Powersave flags */
- #define PS_WAIT_FOR_BEACON        BIT(0)
-@@ -664,7 +663,6 @@ extern int led_blink;
- extern bool is_ath9k_unloaded;
- irqreturn_t ath_isr(int irq, void *dev);
--void ath9k_init_crypto(struct ath_softc *sc);
- int ath9k_init_device(u16 devid, struct ath_softc *sc,
-                   const struct ath_bus_ops *bus_ops);
- void ath9k_deinit_device(struct ath_softc *sc);
---- a/drivers/net/wireless/ath/ath9k/common.c
-+++ b/drivers/net/wireless/ath/ath9k/common.c
-@@ -169,6 +169,32 @@ void ath9k_cmn_update_txpow(struct ath_h
+       return true;
  }
- EXPORT_SYMBOL(ath9k_cmn_update_txpow);
++EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);
+ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
+                     struct wireless_dev *wdev, int freq,
+@@ -109,8 +111,8 @@ 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
+@@ -4684,13 +4684,41 @@ static int nl80211_join_ibss(struct sk_b
+               ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+       }
  
-+void ath9k_cmn_init_crypto(struct ath_hw *ah)
-+{
-+      struct ath_common *common = ath9k_hw_common(ah);
-+      int i = 0;
+-      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;
 +
-+      /* Get the hardware key cache size. */
-+      common->keymax = AR_KEYTABLE_SIZE;
++              channel_type = nla_get_u32(
++                              info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
++              if (channel_type != NL80211_CHAN_NO_HT &&
++                  channel_type != NL80211_CHAN_HT20 &&
++                  channel_type != NL80211_CHAN_HT40MINUS &&
++                  channel_type != NL80211_CHAN_HT40PLUS)
++                      return -EINVAL;
 +
-+      /*
-+       * Check whether the separate key cache entries
-+       * are required to handle both tx+rx MIC keys.
-+       * With split mic keys the number of stations is limited
-+       * to 27 otherwise 59.
-+       */
-+      if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
-+              common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
++              if (channel_type != NL80211_CHAN_NO_HT &&
++                  !(wiphy->features & NL80211_FEATURE_HT_IBSS))
++                      return -EINVAL;
 +
-+      /*
-+       * Reset the key cache since some parts do not
-+       * reset the contents on initial power up.
-+       */
-+      for (i = 0; i < common->keymax; i++)
-+              ath_hw_keyreset(common, (u16) i);
-+}
-+EXPORT_SYMBOL(ath9k_cmn_init_crypto);
++              ibss.channel_type = channel_type;
++      } else {
++              ibss.channel_type = NL80211_CHAN_NO_HT;
++      }
 +
- static int __init ath9k_cmn_init(void)
- {
-       return 0;
---- a/drivers/net/wireless/ath/ath9k/common.h
-+++ b/drivers/net/wireless/ath/ath9k/common.h
-@@ -62,3 +62,4 @@ void ath9k_cmn_btcoex_bt_stomp(struct at
-                                 enum ath_stomp_type stomp_type);
- void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
-                           u16 new_txpow, u16 *txpower);
-+void ath9k_cmn_init_crypto(struct ath_hw *ah);
---- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
-+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
-@@ -572,25 +572,6 @@ err:
-       return -EINVAL;
- }
--static void ath9k_init_crypto(struct ath9k_htc_priv *priv)
--{
--      struct ath_common *common = ath9k_hw_common(priv->ah);
--      int i = 0;
--
--      /* Get the hardware key cache size. */
--      common->keymax = AR_KEYTABLE_SIZE;
--
--      if (priv->ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
--              common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
--
--      /*
--       * Reset the key cache since some parts do not
--       * reset the contents on initial power up.
--       */
--      for (i = 0; i < common->keymax; i++)
--              ath_hw_keyreset(common, (u16) i);
--}
--
- static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
- {
-       if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) {
-@@ -720,7 +701,7 @@ static int ath9k_init_priv(struct ath9k_
-       for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)
-               priv->cur_beacon_conf.bslot[i] = NULL;
--      ath9k_init_crypto(priv);
-+      ath9k_cmn_init_crypto(ah);
-       ath9k_init_channels_rates(priv);
-       ath9k_init_misc(priv);
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -404,31 +404,6 @@ fail:
-       return error;
- }
--void ath9k_init_crypto(struct ath_softc *sc)
--{
--      struct ath_common *common = ath9k_hw_common(sc->sc_ah);
--      int i = 0;
--
--      /* Get the hardware key cache size. */
--      common->keymax = AR_KEYTABLE_SIZE;
--
--      /*
--       * Reset the key cache since some parts do not
--       * reset the contents on initial power up.
--       */
--      for (i = 0; i < common->keymax; i++)
--              ath_hw_keyreset(common, (u16) i);
--
--      /*
--       * Check whether the separate key cache entries
--       * are required to handle both tx+rx MIC keys.
--       * With split mic keys the number of stations is limited
--       * to 27 otherwise 59.
--       */
--      if (sc->sc_ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA)
--              common->crypt_caps |= ATH_CRYPT_CAP_MIC_COMBINED;
--}
--
- static int ath9k_init_btcoex(struct ath_softc *sc)
- {
-       struct ath_txq *txq;
-@@ -630,7 +605,7 @@ static int ath9k_init_softc(u16 devid, s
-       if (ret)
-               goto err_btcoex;
--      ath9k_init_crypto(sc);
-+      ath9k_cmn_init_crypto(sc->sc_ah);
-       ath9k_init_misc(sc);
-       return 0;
---- a/drivers/net/wireless/ath/ath9k/pci.c
-+++ b/drivers/net/wireless/ath/ath9k/pci.c
-@@ -129,7 +129,7 @@ static void ath_pci_aspm_init(struct ath
-               return;
-       parent = pdev->bus->self;
--      if (WARN_ON(!parent))
-+      if (!parent)
-               return;
++      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_NO_IBSS ||
+           ibss.channel->flags & IEEE80211_CHAN_DISABLED)
+               return -EINVAL;
  
-       pos = pci_pcie_cap(parent);
-@@ -338,7 +338,7 @@ static int ath_pci_resume(struct device 
-          * semi-random values after suspend/resume.
-          */
-       ath9k_ps_wakeup(sc);
--      ath9k_init_crypto(sc);
-+      ath9k_cmn_init_crypto(sc->sc_ah);
-       ath9k_ps_restore(sc);
++      /* 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;
++
+       ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
+       ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
  
-       sc->ps_idle = true;
---- a/drivers/net/wireless/ath/ath9k/calib.c
-+++ b/drivers/net/wireless/ath/ath9k/calib.c
-@@ -82,7 +82,6 @@ static void ath9k_hw_update_nfcal_hist_b
-                                             int16_t *nfarray)
- {
-       struct ath_common *common = ath9k_hw_common(ah);
--      struct ieee80211_conf *conf = &common->hw->conf;
-       struct ath_nf_limits *limit;
-       struct ath9k_nfcal_hist *h;
-       bool high_nf_mid = false;
-@@ -94,7 +93,7 @@ static void ath9k_hw_update_nfcal_hist_b
-       for (i = 0; i < NUM_NF_READINGS; i++) {
-               if (!(chainmask & (1 << i)) ||
--                  ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
-+                  ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(ah->curchan)))
-                       continue;
-               h[i].nfCalBuffer[h[i].currIndex] = nfarray[i];
---- a/drivers/net/wireless/ath/ath9k/debug.c
-+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1163,6 +1163,59 @@ static const struct file_operations fops
-       .llseek = default_llseek,/* read accesses f_pos */
- };
+--- a/include/linux/ieee80211.h
++++ b/include/linux/ieee80211.h
+@@ -1695,6 +1695,23 @@ static inline bool ieee80211_is_robust_m
+ }
  
-+static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
-+                                  size_t count, loff_t *ppos)
+ /**
++ * ieee80211_is_public_action - check if frame is a public action frame
++ * @hdr: the frame
++ * @len: length of the frame
++ */
++static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
++                                            size_t len)
 +{
-+      struct ath_softc *sc = file->private_data;
-+      struct ath_hw *ah = sc->sc_ah;
-+      struct ath9k_nfcal_hist *h = sc->caldata.nfCalHist;
-+      struct ath_common *common = ath9k_hw_common(ah);
-+      struct ieee80211_conf *conf = &common->hw->conf;
-+      u32 len = 0, size = 1500;
-+      u32 i, j;
-+      ssize_t retval = 0;
-+      char *buf;
-+      u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
-+      u8 nread;
-+
-+      buf = kzalloc(size, GFP_KERNEL);
-+      if (!buf)
-+              return -ENOMEM;
-+
-+      len += snprintf(buf + len, size - len,
-+                      "Channel Noise Floor : %d\n", ah->noise);
-+      len += snprintf(buf + len, size - len,
-+                      "Chain | privNF | # Readings | NF Readings\n");
-+      for (i = 0; i < NUM_NF_READINGS; i++) {
-+              if (!(chainmask & (1 << i)) ||
-+                  ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
-+                      continue;
-+
-+              nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
-+              len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
-+                              i, h[i].privNF, nread);
-+              for (j = 0; j < nread; j++)
-+                      len += snprintf(buf + len, size - len,
-+                                      " %d", h[i].nfCalBuffer[j]);
-+              len += snprintf(buf + len, size - len, "\n");
-+      }
++      struct ieee80211_mgmt *mgmt = (void *)hdr;
 +
-+      if (len > size)
-+              len = size;
-+
-+      retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
-+      kfree(buf);
-+
-+      return retval;
++      if (len < 25)
++              return false;
++      if (!ieee80211_is_action(hdr->frame_control))
++              return false;
++      return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
 +}
 +
-+static const struct file_operations fops_dump_nfcal = {
-+      .read = read_file_dump_nfcal,
-+      .open = ath9k_debugfs_open,
-+      .owner = THIS_MODULE,
-+      .llseek = default_llseek,
-+};
-+
- static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
-                                    size_t count, loff_t *ppos)
- {
-@@ -1262,6 +1315,8 @@ int ath9k_init_debug(struct ath_hw *ah)
-                           &ah->config.cwm_ignore_extcca);
-       debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
-                           &fops_regdump);
-+      debugfs_create_file("dump_nfcal", S_IRUSR, sc->debug.debugfs_phy, sc,
-+                          &fops_dump_nfcal);
-       debugfs_create_file("base_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
-                           &fops_base_eeprom);
-       debugfs_create_file("modal_eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
---- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-@@ -69,7 +69,7 @@ static int ar9003_hw_power_interpolate(i
- static const struct ar9300_eeprom ar9300_default = {
-       .eepromVersion = 2,
-       .templateVersion = 2,
--      .macAddr = {1, 2, 3, 4, 5, 6},
-+      .macAddr = {0, 2, 3, 4, 5, 6},
-       .custData = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-                    0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
-       .baseEepHeader = {
---- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
-+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
-@@ -349,10 +349,7 @@ static u32 ath9k_hw_4k_get_eeprom(struct
-       case EEP_ANT_DIV_CTL1:
-               return pModal->antdiv_ctl1;
-       case EEP_TXGAIN_TYPE:
--              if (ver_minor >= AR5416_EEP_MINOR_VER_19)
--                      return pBase->txGainType;
--              else
--                      return AR5416_EEP_TXGAIN_ORIGINAL;
-+              return pBase->txGainType;
-       default:
-               return 0;
-       }
++/**
+  * ieee80211_fhss_chan_to_freq - get channel frequency
+  * @channel: the FHSS channel
+  *
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1332,8 +1332,11 @@ static int invoke_tx_handlers(struct iee
+       if (!(tx->local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL))
+               CALL_TXH(ieee80211_tx_h_rate_ctrl);
+-      if (unlikely(info->flags & IEEE80211_TX_INTFL_RETRANSMISSION))
++      if (unlikely(info->flags & IEEE80211_TX_INTFL_RETRANSMISSION)) {
++              __skb_queue_tail(&tx->skbs, tx->skb);
++              tx->skb = NULL;
+               goto txh_done;
++      }
+       CALL_TXH(ieee80211_tx_h_michael_mic_add);
+       CALL_TXH(ieee80211_tx_h_sequence);
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