mac80211: update to 2011-12-01
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 300-pending_work.patch
index e86505368d67357c7a23eba7012fb867b7469ae1..44935791319287035389246b3fd86a02e87f1621 100644 (file)
@@ -1,3 +1,59 @@
+--- 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 *
                fastcc = false;
  
        if (!ath_prepare_reset(sc, retry_tx, flush))
-@@ -882,82 +883,6 @@ chip_reset:
+@@ -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 int ath_reset(struct ath_softc *sc, bool retry_tx)
  {
        int r;
-@@ -1093,6 +1018,9 @@ static int ath9k_start(struct ieee80211_
+@@ -1097,6 +1025,9 @@ static int ath9k_start(struct ieee80211_
         * and then setup of the interrupt mask.
         */
        spin_lock_bh(&sc->sc_pcu_lock);
        r = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
        if (r) {
                ath_err(common,
-@@ -1131,6 +1059,18 @@ static int ath9k_start(struct ieee80211_
+@@ -1138,6 +1069,18 @@ static int ath9k_start(struct ieee80211_
                goto mutex_unlock;
        }
  
        spin_unlock_bh(&sc->sc_pcu_lock);
  
        if ((ah->btcoex_hw.scheme != ATH_BTCOEX_CFG_NONE) &&
-@@ -1176,6 +1116,13 @@ static void ath9k_tx(struct ieee80211_hw
+@@ -1183,6 +1126,13 @@ static void ath9k_tx(struct ieee80211_hw
                }
        }
  
        if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) {
                /*
                 * We are using PS-Poll and mac80211 can request TX while in
-@@ -1222,6 +1169,7 @@ static void ath9k_stop(struct ieee80211_
+@@ -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);
  
        mutex_lock(&sc->mutex);
  
-@@ -1252,35 +1200,45 @@ static void ath9k_stop(struct ieee80211_
+@@ -1259,35 +1210,45 @@ static void ath9k_stop(struct ieee80211_
         * before setting the invalid flag. */
        ath9k_hw_disable_interrupts(ah);
  
  
        mutex_unlock(&sc->mutex);
  
-@@ -1620,8 +1578,8 @@ static int ath9k_config(struct ieee80211
+@@ -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;
        mutex_lock(&sc->mutex);
  
        /*
-@@ -1632,13 +1590,8 @@ static int ath9k_config(struct ieee80211
+@@ -1639,13 +1600,8 @@ static int ath9k_config(struct ieee80211
         */
        if (changed & IEEE80211_CONF_CHANGE_IDLE) {
                sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE);
        }
  
        /*
-@@ -1745,18 +1698,12 @@ static int ath9k_config(struct ieee80211
+@@ -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;
  
        return 0;
  }
-@@ -2324,9 +2271,6 @@ static void ath9k_flush(struct ieee80211
+@@ -2331,9 +2281,6 @@ static void ath9k_flush(struct ieee80211
                return;
        }
  
        for (j = 0; j < timeout; j++) {
                bool npend = false;
  
-@@ -2344,21 +2288,22 @@ static void ath9k_flush(struct ieee80211
+@@ -2351,21 +2298,22 @@ static void ath9k_flush(struct ieee80211
                }
  
                if (!npend)
  
 --- a/drivers/net/wireless/ath/ath9k/xmit.c
 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -179,6 +179,11 @@ static void ath_tx_flush_tid(struct ath_
-               spin_lock_bh(&txq->axq_lock);
-       }
-+      if (tid->baw_head == tid->baw_tail) {
-+              tid->state &= ~AGGR_ADDBA_COMPLETE;
-+              tid->state &= ~AGGR_CLEANUP;
-+      }
-+
-       spin_unlock_bh(&txq->axq_lock);
- }
-@@ -556,15 +561,9 @@ static void ath_tx_complete_aggr(struct 
-               spin_unlock_bh(&txq->axq_lock);
-       }
--      if (tid->state & AGGR_CLEANUP) {
-+      if (tid->state & AGGR_CLEANUP)
-               ath_tx_flush_tid(sc, tid);
--              if (tid->baw_head == tid->baw_tail) {
--                      tid->state &= ~AGGR_ADDBA_COMPLETE;
--                      tid->state &= ~AGGR_CLEANUP;
--              }
--      }
--
-       rcu_read_unlock();
-       if (needreset) {
-@@ -1955,7 +1954,7 @@ static void ath_tx_complete(struct ath_s
+@@ -1954,7 +1954,7 @@ static void ath_tx_complete(struct ath_s
                skb_pull(skb, padsize);
        }
  
                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
-@@ -1130,6 +1130,7 @@ struct cfg80211_ibss_params {
+@@ -1149,6 +1149,7 @@ struct cfg80211_ibss_params {
        u8 *ssid;
        u8 *bssid;
        struct ieee80211_channel *channel;
        u8 *ie;
        u8 ssid_len, ie_len;
        u16 beacon_interval;
-@@ -3292,6 +3293,16 @@ void cfg80211_report_obss_beacon(struct 
+@@ -3270,6 +3271,16 @@ void cfg80211_report_obss_beacon(struct 
                                 const u8 *frame, size_t len,
                                 int freq, gfp_t gfp);
  
-+/**
-+ * cfg80211_can_use_ext_chan - test if ht40 on extension channel can be used
++/*
++ * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
 + * @wiphy: the wiphy
 + * @chan: main channel
 + * @channel_type: HT mode
 + */
-+bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
-+                                struct ieee80211_channel *chan,
-+                                enum nl80211_channel_type channel_type);
++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
-@@ -182,6 +182,10 @@ 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_WDS)
-+              memcpy(mgmt->bssid, da, 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);
  
        mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
                                          IEEE80211_STYPE_ACTION);
-@@ -394,7 +397,9 @@ int ieee80211_start_tx_ba_session(struct
+@@ -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_ADHOC &&
-+          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);
+       /* we have tried too many times, receiver does not want A-MPDU */
 --- a/net/mac80211/debugfs_sta.c
 +++ b/net/mac80211/debugfs_sta.c
 @@ -63,11 +63,11 @@ static ssize_t sta_flags_read(struct fil
        test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
  
        int res = scnprintf(buf, sizeof(buf),
--                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
-+                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+-                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
++                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
                            TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
                            TEST(PS_DRIVER), TEST(AUTHORIZED),
-                           TEST(SHORT_PREAMBLE), TEST(ASSOC_AP),
+                           TEST(SHORT_PREAMBLE),
 -                          TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
 +                          TEST(WME), TEST(CLEAR_PS_FILT),
                            TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
                            TEST(TDLS_PEER_AUTH));
 --- a/net/mac80211/ht.c
 +++ b/net/mac80211/ht.c
-@@ -201,6 +201,8 @@ void ieee80211_send_delba(struct ieee802
+@@ -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);
        ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
  
        sband = local->hw.wiphy->bands[chan->band];
-@@ -172,6 +181,18 @@ static void __ieee80211_sta_join_ibss(st
+@@ -172,6 +181,19 @@ static void __ieee80211_sta_join_ibss(st
                memcpy(skb_put(skb, ifibss->ie_len),
                       ifibss->ie, ifibss->ie_len);
  
 +              pos = skb_put(skb, 4 +
 +                                 sizeof(struct ieee80211_ht_cap) +
 +                                 sizeof(struct ieee80211_ht_info));
-+              pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
++              pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
++                                              sband->ht_cap.cap);
 +              pos = ieee80211_ie_build_ht_info(pos,
 +                                               &sband->ht_cap,
 +                                               chan,
        if (local->hw.queues >= 4) {
                pos = skb_put(skb, 9);
                *pos++ = WLAN_EID_VENDOR_SPECIFIC;
-@@ -195,6 +216,7 @@ static void __ieee80211_sta_join_ibss(st
+@@ -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_IBSS;
        sdata->vif.bss_conf.ibss_joined = true;
        ieee80211_bss_info_change_notify(sdata, bss_change);
-@@ -268,6 +290,7 @@ static void ieee80211_rx_bss_info(struct
+@@ -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],
-@@ -277,7 +300,10 @@ static void ieee80211_rx_bss_info(struct
-       channel = ieee80211_get_channel(local->hw.wiphy, freq);
--      if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
-+      if (!channel ||
-+          channel->flags & (IEEE80211_CHAN_DISABLED ||
-+                            IEEE80211_CHAN_NO_IBSS ||
-+                            IEEE80211_CHAN_RADAR))
-               return;
-       if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
-@@ -315,8 +341,41 @@ static void ieee80211_rx_bss_info(struct
-                                               GFP_ATOMIC);
-               }
--              if (sta && elems->wmm_info)
--                      set_sta_flag(sta, WLAN_STA_WME);
-+              if (sta) {
-+                      if (elems->wmm_info)
-+                              set_sta_flag(sta, WLAN_STA_WME);
-+
+@@ -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 */
-+                      if (elems->ht_info_elem && elems->ht_cap_elem &&
-+                          sdata->u.ibss.channel_type) {
-+                              enum nl80211_channel_type channel_type =
-+                                      ieee80211_ht_info_to_channel_type(
-+                                                         elems->ht_info_elem);
-+                              struct ieee80211_sta_ht_cap sta_ht_cap_new;
-+
-+                              /*
-+                               * fall back to HT20 if we don't use or use
-+                               * the other extension channel
-+                               */
-+                              if (channel_type > NL80211_CHAN_HT20 &&
-+                                  channel_type != sdata->u.ibss.channel_type)
-+                                      channel_type = NL80211_CHAN_HT20;
-+
-+                              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
-+                                              elems->ht_cap_elem,
-+                                              &sta_ht_cap_new);
-+                              if (memcmp(&sta->sta.ht_cap, &sta_ht_cap_new,
-+                                         sizeof(sta_ht_cap_new))) {
-+                                      memcpy(&sta->sta.ht_cap,
-+                                             &sta_ht_cap_new,
-+                                             sizeof(sta_ht_cap_new));
-+                                      rate_control_rate_update(local, sband,
-+                                                      sta,
-+                                                      IEEE80211_RC_HT_CHANGED,
-+                                                      channel_type);
-+                              }
++                      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();
        }
-@@ -898,10 +957,15 @@ int ieee80211_ibss_join(struct ieee80211
+@@ -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 */ +
        }
  
        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
-@@ -470,6 +470,7 @@ struct ieee80211_if_ibss {
+@@ -474,6 +474,7 @@ struct ieee80211_if_ibss {
        u8 ssid_len, ie_len;
        u8 *ie;
        struct ieee80211_channel *channel;
   err_stop:
        if (!local->open_count)
                drv_stop(local);
-@@ -732,6 +709,70 @@ 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)
  static void ieee80211_iface_work(struct work_struct *work)
  {
        struct ieee80211_sub_if_data *sdata =
-@@ -836,6 +877,9 @@ static void ieee80211_iface_work(struct 
+@@ -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/mlme.c
-+++ b/net/mac80211/mlme.c
-@@ -1359,9 +1359,6 @@ static void __ieee80211_connection_loss(
-       ieee80211_set_disassoc(sdata, true, true);
-       mutex_unlock(&ifmgd->mtx);
--      mutex_lock(&local->mtx);
--      ieee80211_recalc_idle(local);
--      mutex_unlock(&local->mtx);
-       /*
-        * must be outside lock due to cfg80211,
-        * but that's not a problem.
-@@ -1370,6 +1367,10 @@ static void __ieee80211_connection_loss(
-                                      IEEE80211_STYPE_DEAUTH,
-                                      WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
-                                      NULL, true);
-+
-+      mutex_lock(&local->mtx);
-+      ieee80211_recalc_idle(local);
-+      mutex_unlock(&local->mtx);
- }
- void ieee80211_beacon_connection_loss_work(struct work_struct *work)
-@@ -2136,9 +2137,6 @@ static void ieee80211_sta_connection_los
-       ieee80211_set_disassoc(sdata, true, true);
-       mutex_unlock(&ifmgd->mtx);
--      mutex_lock(&local->mtx);
--      ieee80211_recalc_idle(local);
--      mutex_unlock(&local->mtx);
-       /*
-        * must be outside lock due to cfg80211,
-        * but that's not a problem.
-@@ -2146,6 +2144,11 @@ static void ieee80211_sta_connection_los
-       ieee80211_send_deauth_disassoc(sdata, bssid,
-                       IEEE80211_STYPE_DEAUTH, reason,
-                       NULL, true);
-+
-+      mutex_lock(&local->mtx);
-+      ieee80211_recalc_idle(local);
-+      mutex_unlock(&local->mtx);
-+
-       mutex_lock(&ifmgd->mtx);
- }
---- a/net/mac80211/offchannel.c
-+++ b/net/mac80211/offchannel.c
-@@ -212,8 +212,6 @@ static void ieee80211_hw_roc_start(struc
-               return;
-       }
--      ieee80211_recalc_idle(local);
--
-       if (local->hw_roc_skb) {
-               sdata = IEEE80211_DEV_TO_SUB_IF(local->hw_roc_dev);
-               ieee80211_tx_skb(sdata, local->hw_roc_skb);
-@@ -227,6 +225,8 @@ static void ieee80211_hw_roc_start(struc
-                                         GFP_KERNEL);
-       }
-+      ieee80211_recalc_idle(local);
-+
-       mutex_unlock(&local->mtx);
- }
+--- a/net/mac80211/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
-@@ -2250,7 +2250,9 @@ 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_ADHOC &&
-+                  sdata->vif.type != NL80211_IFTYPE_WDS)
++                  sdata->vif.type != NL80211_IFTYPE_WDS &&
++                  sdata->vif.type != NL80211_IFTYPE_ADHOC)
                        break;
  
                /* verify action_code is present */
-@@ -2465,13 +2467,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -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):
-@@ -2818,10 +2821,16 @@ static int prepare_for_handlers(struct i
+@@ -2805,10 +2808,16 @@ static int prepare_for_handlers(struct i
                }
                break;
        case NL80211_IFTYPE_WDS:
                /* should never get here */
 --- a/net/mac80211/sta_info.h
 +++ b/net/mac80211/sta_info.h
-@@ -32,7 +32,6 @@
+@@ -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.
-@@ -62,7 +61,6 @@ enum ieee80211_sta_info_flags {
+@@ -60,7 +59,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_AUTHORIZED,
        WLAN_STA_SHORT_PREAMBLE,
-       WLAN_STA_ASSOC_AP,
        WLAN_STA_WME,
 -      WLAN_STA_WDS,
        WLAN_STA_CLEAR_PS_FILT,
        WLAN_STA_MFP,
        WLAN_STA_BLOCK_BA,
+--- a/net/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;
 --- a/net/wireless/chan.c
 +++ b/net/wireless/chan.c
-@@ -44,9 +44,9 @@ rdev_freq_to_chan(struct cfg80211_regist
+@@ -6,6 +6,7 @@
+  * Copyright 2009     Johannes Berg <johannes@sipsolutions.net>
+  */
++#include <linux/export.h>
+ #include <net/cfg80211.h>
+ #include "core.h"
+@@ -44,9 +45,9 @@ rdev_freq_to_chan(struct cfg80211_regist
        return chan;
  }
  
 -static bool can_beacon_sec_chan(struct wiphy *wiphy,
 -                              struct ieee80211_channel *chan,
 -                              enum nl80211_channel_type channel_type)
-+bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
++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 +75,7 @@ static bool can_beacon_sec_chan(struct w
+@@ -75,6 +76,7 @@ static bool can_beacon_sec_chan(struct w
  
        return true;
  }
  
  int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
                      struct wireless_dev *wdev, int freq,
-@@ -109,8 +110,8 @@ int cfg80211_set_freq(struct cfg80211_re
+@@ -109,8 +111,8 @@ int cfg80211_set_freq(struct cfg80211_re
                switch (channel_type) {
                case NL80211_CHAN_HT40PLUS:
                case NL80211_CHAN_HT40MINUS:
                                       "allowed to initiate communication\n");
 --- a/net/wireless/nl80211.c
 +++ b/net/wireless/nl80211.c
-@@ -4604,13 +4604,34 @@ static int nl80211_join_ibss(struct sk_b
+@@ -4684,13 +4684,41 @@ static int nl80211_join_ibss(struct sk_b
                ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
        }
  
 +
 +              channel_type = nla_get_u32(
 +                              info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
-+              if (channel_type > NL80211_CHAN_HT40PLUS)
++              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;
 +              nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
 +              ibss.channel_type);
        if (!ibss.channel ||
-+          ibss.channel->flags & IEEE80211_CHAN_RADAR ||
            ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
            ibss.channel->flags & IEEE80211_CHAN_DISABLED)
                return -EINVAL;