mac80211: update to 2011-12-01
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 300-pending_work.patch
index 285ce6944975376c3cada3c77583056f1d6d3b82..44935791319287035389246b3fd86a02e87f1621 100644 (file)
+--- 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;
+       }
+-      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;
++      /* disable ANI for 9340 */
++      if (AR_SREV_9340(ah))
++              ah->config.enable_ani = false;
++
+       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 |
+@@ -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");
++
+       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);
++      }
++
++      /*
++       * 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 ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
+@@ -1183,6 +1126,13 @@ static void ath9k_tx(struct ieee80211_hw
+               }
+       }
++      /*
++       * 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)) {
+               /*
+                * 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;
+       mutex_lock(&sc->mutex);
+@@ -1259,35 +1210,45 @@ 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);
+@@ -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;
+       }
+-      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);
++      }
+-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
+@@ -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
-@@ -176,6 +176,8 @@ 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);
  
        mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
                                          IEEE80211_STYPE_ACTION);
-@@ -262,7 +264,11 @@ void ieee80211_process_addba_request(str
-                               "%pM on tid %u\n",
-                               mgmt->sa, tid);
- #endif /* CONFIG_MAC80211_HT_DEBUG */
--              goto end;
-+
-+              /* delete existing Rx BA session on the same tid */
-+              ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
-+                                              WLAN_STATUS_UNSPECIFIED_QOS,
-+                                              false);
-       }
-       /* prepare A-MPDU MLME for Rx aggregation */
 --- 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);
+@@ -437,7 +440,9 @@ 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_flag(sta, WLAN_STA_BLOCK_BA)) {
+@@ -448,6 +453,27 @@ 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);
  
-       if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) {
+       /* we have tried too many times, receiver does not want A-MPDU */
 --- 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
+@@ -282,6 +282,8 @@ 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
-@@ -2137,7 +2137,8 @@ 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 */
-@@ -2335,13 +2336,14 @@ 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):
-@@ -2680,10 +2682,16 @@ static int prepare_for_handlers(struct i
+@@ -2805,10 +2808,16 @@ static int prepare_for_handlers(struct i
                }
                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/beacon.c
-+++ b/drivers/net/wireless/ath/ath9k/beacon.c
-@@ -384,7 +384,9 @@ void ath_beacon_tasklet(unsigned long da
-                       ath_dbg(common, ATH_DBG_BSTUCK,
-                               "beacon is officially stuck\n");
-                       sc->sc_flags |= SC_OP_TSF_RESET;
-+                      spin_lock(&sc->sc_pcu_lock);
-                       ath_reset(sc, true);
-+                      spin_unlock(&sc->sc_pcu_lock);
-               }
-               return;
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -617,8 +617,11 @@ void ath_hw_check(struct work_struct *wo
-       ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
-               "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
-       if (busy >= 99) {
--              if (++sc->hw_busy_count >= 3)
-+              if (++sc->hw_busy_count >= 3) {
-+                      spin_lock_bh(&sc->sc_pcu_lock);
-                       ath_reset(sc, true);
-+                      spin_unlock_bh(&sc->sc_pcu_lock);
-+              }
-       } else if (busy >= 0)
-               sc->hw_busy_count = 0;
-@@ -637,7 +640,9 @@ static void ath_hw_pll_rx_hang_check(str
-                       /* Rx is hung for more than 500ms. Reset it */
-                       ath_dbg(common, ATH_DBG_RESET,
-                               "Possible RX hang, resetting");
-+                      spin_lock_bh(&sc->sc_pcu_lock);
-                       ath_reset(sc, true);
-+                      spin_unlock_bh(&sc->sc_pcu_lock);
-                       count = 0;
-               }
-       } else
-@@ -674,7 +679,9 @@ void ath9k_tasklet(unsigned long data)
-       if ((status & ATH9K_INT_FATAL) ||
-           (status & ATH9K_INT_BB_WATCHDOG)) {
-+              spin_lock(&sc->sc_pcu_lock);
-               ath_reset(sc, true);
-+              spin_unlock(&sc->sc_pcu_lock);
-               return;
+@@ -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,
        }
+       if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+               ht_info->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
++
++      /*
++       * 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;
  
-@@ -980,7 +987,6 @@ int ath_reset(struct ath_softc *sc, bool
-       del_timer_sync(&common->ani.timer);
-       ath9k_ps_wakeup(sc);
--      spin_lock_bh(&sc->sc_pcu_lock);
-       ieee80211_stop_queues(hw);
-@@ -1023,7 +1029,6 @@ int ath_reset(struct ath_softc *sc, bool
-       }
+--- a/net/wireless/chan.c
++++ b/net/wireless/chan.c
+@@ -6,6 +6,7 @@
+  * Copyright 2009     Johannes Berg <johannes@sipsolutions.net>
+  */
  
-       ieee80211_wake_queues(hw);
--      spin_unlock_bh(&sc->sc_pcu_lock);
++#include <linux/export.h>
+ #include <net/cfg80211.h>
+ #include "core.h"
  
-       /* Start ANI */
-       if (!common->disable_ani)
-@@ -2326,9 +2331,9 @@ static void ath9k_flush(struct ieee80211
-       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);
-+      spin_unlock_bh(&sc->sc_pcu_lock);
-       ath9k_ps_restore(sc);
-       ieee80211_wake_queues(hw);
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -565,11 +565,8 @@ static void ath_tx_complete_aggr(struct 
+@@ -44,9 +45,9 @@ rdev_freq_to_chan(struct cfg80211_regist
+       return chan;
+ }
  
-       rcu_read_unlock();
+-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 ieee80211_channel *sec_chan;
+       int diff;
+@@ -75,6 +76,7 @@ static bool can_beacon_sec_chan(struct w
  
--      if (needreset) {
--              spin_unlock_bh(&sc->sc_pcu_lock);
-+      if (needreset)
-               ath_reset(sc, false);
--              spin_lock_bh(&sc->sc_pcu_lock);
--      }
+       return true;
  }
++EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);
  
- static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
-@@ -664,7 +661,8 @@ static int ath_compute_num_delims(struct
-        * TODO - this could be improved to be dependent on the rate.
-        *      The hardware can keep up at lower rates, but not higher rates
-        */
--      if (fi->keyix != ATH9K_TXKEYIX_INVALID)
-+      if ((fi->keyix != ATH9K_TXKEYIX_INVALID) &&
-+          !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))
-               ndelim += ATH_AGGR_ENCRYPTDELIM;
-       /*
-@@ -2169,7 +2167,9 @@ static void ath_tx_complete_poll_work(st
-       if (needreset) {
-               ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
-                       "tx hung, resetting the chip\n");
-+              spin_lock_bh(&sc->sc_pcu_lock);
-               ath_reset(sc, true);
-+              spin_unlock_bh(&sc->sc_pcu_lock);
+ 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]);
        }
  
-       ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
---- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
-@@ -236,7 +236,7 @@ static void ar9003_paprd_get_gain_table(
-       memset(entry, 0, sizeof(ah->paprd_gain_table_entries));
-       memset(index, 0, sizeof(ah->paprd_gain_table_index));
--      for (i = 0; i < 32; i++) {
-+      for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
-               entry[i] = REG_READ(ah, reg);
-               index[i] = (entry[i] >> 24) & 0xff;
-               reg += 4;
-@@ -246,13 +246,13 @@ static void ar9003_paprd_get_gain_table(
- static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
-                                           int target_power)
- {
--      int olpc_gain_delta = 0;
-+      int olpc_gain_delta = 0, cl_gain_mod;
-       int alpha_therm, alpha_volt;
-       int therm_cal_value, volt_cal_value;
-       int therm_value, volt_value;
-       int thermal_gain_corr, voltage_gain_corr;
-       int desired_scale, desired_gain = 0;
--      u32 reg;
-+      u32 reg_olpc  = 0, reg_cl_gain  = 0;
-       REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1,
-                   AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
-@@ -271,15 +271,29 @@ static unsigned int ar9003_get_desired_g
-       volt_value = REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4,
-                                   AR_PHY_BB_THERM_ADC_4_LATEST_VOLT_VALUE);
--      if (chain == 0)
--              reg = AR_PHY_TPC_11_B0;
--      else if (chain == 1)
--              reg = AR_PHY_TPC_11_B1;
--      else
--              reg = AR_PHY_TPC_11_B2;
-+      switch (chain) {
-+      case 0:
-+              reg_olpc = AR_PHY_TPC_11_B0;
-+              reg_cl_gain = AR_PHY_CL_TAB_0;
-+              break;
-+      case 1:
-+              reg_olpc = AR_PHY_TPC_11_B1;
-+              reg_cl_gain = AR_PHY_CL_TAB_1;
-+              break;
-+      case 2:
-+              reg_olpc = AR_PHY_TPC_11_B2;
-+              reg_cl_gain = AR_PHY_CL_TAB_2;
-+              break;
-+      default:
-+              ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
-+              "Invalid chainmask: %d\n", chain);
-+              break;
+-      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_NO_HT &&
++                  channel_type != NL80211_CHAN_HT20 &&
++                  channel_type != NL80211_CHAN_HT40MINUS &&
++                  channel_type != NL80211_CHAN_HT40PLUS)
++                      return -EINVAL;
++
++              if (channel_type != NL80211_CHAN_NO_HT &&
++                  !(wiphy->features & NL80211_FEATURE_HT_IBSS))
++                      return -EINVAL;
++
++              ibss.channel_type = channel_type;
++      } else {
++              ibss.channel_type = NL80211_CHAN_NO_HT;
 +      }
++
++      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;
  
--      olpc_gain_delta = REG_READ_FIELD(ah, reg,
-+      olpc_gain_delta = REG_READ_FIELD(ah, reg_olpc,
-                                        AR_PHY_TPC_11_OLPC_GAIN_DELTA);
-+      cl_gain_mod = REG_READ_FIELD(ah, reg_cl_gain,
-+                                       AR_PHY_CL_TAB_CL_GAIN_MOD);
-       if (olpc_gain_delta >= 128)
-               olpc_gain_delta = olpc_gain_delta - 256;
-@@ -289,7 +303,7 @@ static unsigned int ar9003_get_desired_g
-       voltage_gain_corr = (alpha_volt * (volt_value - volt_cal_value) +
-                            (128 / 2)) / 128;
-       desired_gain = target_power - olpc_gain_delta - thermal_gain_corr -
--          voltage_gain_corr + desired_scale;
-+          voltage_gain_corr + desired_scale + cl_gain_mod;
-       return desired_gain;
- }
-@@ -727,7 +741,7 @@ int ar9003_paprd_setup_gain_table(struct
-       desired_gain = ar9003_get_desired_gain(ah, chain, train_power);
-       gain_index = 0;
--      for (i = 0; i < 32; i++) {
-+      for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
-               if (ah->paprd_gain_table_index[i] >= desired_gain)
-                       break;
-               gain_index++;
---- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
-@@ -1121,6 +1121,9 @@
- #define AR_PHY_POWERTX_RATE8_POWERTXHT40_5    0x3F00
- #define AR_PHY_POWERTX_RATE8_POWERTXHT40_5_S  8
-+#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/ath5k/eeprom.c
-+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
-@@ -691,14 +691,12 @@ ath5k_eeprom_free_pcal_info(struct ath5k
-               if (!chinfo[pier].pd_curves)
-                       continue;
--              for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
-+              for (pdg = 0; pdg < AR5K_EEPROM_N_PD_CURVES; pdg++) {
-                       struct ath5k_pdgain_info *pd =
-                                       &chinfo[pier].pd_curves[pdg];
--                      if (pd != NULL) {
--                              kfree(pd->pd_step);
--                              kfree(pd->pd_pwr);
--                      }
-+                      kfree(pd->pd_step);
-+                      kfree(pd->pd_pwr);
-               }
++      /* 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];
  
-               kfree(chinfo[pier].pd_curves);