Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6

32 files changed, 3216 insertions, 2149 deletions

diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index 3503a3d2131..0e3ab88bb70 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -9,6 +9,7 @@ mac80211-y := \
 	wpa.o \
 	scan.o \
 	ht.o agg-tx.o agg-rx.o \
+	ibss.o \
 	mlme.o \
 	iface.o \
 	rate.o \
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 3112bfd441b..a95affc9462 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -129,7 +129,6 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d
 				      u8 dialog_token, u16 status, u16 policy,
 				      u16 buf_size, u16 timeout)
 {
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
@@ -151,8 +150,9 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
-	else
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
+
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 1232d9f01ca..1df116d4d6e 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -49,7 +49,6 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 					 u16 agg_size, u16 timeout)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u16 capab;
@@ -69,8 +68,8 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
-	else
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
 
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
@@ -132,9 +131,24 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 
-	if (local->hw.ampdu_queues)
-		ieee80211_stop_queue(&local->hw, sta->tid_to_tx_q[tid]);
+	if (local->hw.ampdu_queues) {
+		if (initiator) {
+			/*
+			 * Stop the AC queue to avoid issues where we send
+			 * unaggregated frames already before the delba.
+			 */
+			ieee80211_stop_queue_by_reason(&local->hw,
+				local->hw.queues + sta->tid_to_tx_q[tid],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		}
 
+		/*
+		 * Pretend the driver woke the queue, just in case
+		 * it disabled it before the session was stopped.
+		 */
+		ieee80211_wake_queue(
+			&local->hw, local->hw.queues + sta->tid_to_tx_q[tid]);
+	}
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
 
@@ -144,8 +158,6 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
 		*state = HT_AGG_STATE_OPERATIONAL;
-		if (local->hw.ampdu_queues)
-			ieee80211_wake_queue(&local->hw, sta->tid_to_tx_q[tid]);
 	}
 
 	return ret;
@@ -189,14 +201,19 @@ static void sta_addba_resp_timer_expired(unsigned long data)
 	spin_unlock_bh(&sta->lock);
 }
 
+static inline int ieee80211_ac_from_tid(int tid)
+{
+	return ieee802_1d_to_ac[tid & 7];
+}
+
 int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata;
-	u16 start_seq_num;
 	u8 *state;
-	int ret = 0;
+	int i, qn = -1, ret = 0;
+	u16 start_seq_num;
 
 	if (WARN_ON(!local->ops->ampdu_action))
 		return -EINVAL;
@@ -209,6 +226,13 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	       ra, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
+	if (hw->ampdu_queues && ieee80211_ac_from_tid(tid) == 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "rejecting on voice AC\n");
+#endif
+		return -EINVAL;
+	}
+
 	rcu_read_lock();
 
 	sta = sta_info_get(local, ra);
@@ -217,7 +241,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		printk(KERN_DEBUG "Could not find the station\n");
 #endif
 		ret = -ENOENT;
-		goto exit;
+		goto unlock;
 	}
 
 	/*
@@ -230,11 +254,13 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	    sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 	    sta->sdata->vif.type != NL80211_IFTYPE_AP) {
 		ret = -EINVAL;
-		goto exit;
+		goto unlock;
 	}
 
 	spin_lock_bh(&sta->lock);
 
+	sdata = sta->sdata;
+
 	/* we have tried too many times, receiver does not want A-MPDU */
 	if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
 		ret = -EBUSY;
@@ -252,6 +278,42 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		goto err_unlock_sta;
 	}
 
+	if (hw->ampdu_queues) {
+		spin_lock(&local->queue_stop_reason_lock);
+		/* reserve a new queue for this session */
+		for (i = 0; i < local->hw.ampdu_queues; i++) {
+			if (local->ampdu_ac_queue[i] < 0) {
+				qn = i;
+				local->ampdu_ac_queue[qn] =
+					ieee80211_ac_from_tid(tid);
+				break;
+			}
+		}
+		spin_unlock(&local->queue_stop_reason_lock);
+
+		if (qn < 0) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+			printk(KERN_DEBUG "BA request denied - "
+			       "queue unavailable for tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+			ret = -ENOSPC;
+			goto err_unlock_sta;
+		}
+
+		/*
+		 * If we successfully allocate the session, we can't have
+		 * anything going on on the queue this TID maps into, so
+		 * stop it for now. This is a "virtual" stop using the same
+		 * mechanism that drivers will use.
+		 *
+		 * XXX: queue up frames for this session in the sta_info
+		 *	struct instead to avoid hitting all other STAs.
+		 */
+		ieee80211_stop_queue_by_reason(
+			&local->hw, hw->queues + qn,
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+	}
+
 	/* prepare A-MPDU MLME for Tx aggregation */
 	sta->ampdu_mlme.tid_tx[tid] =
 			kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
@@ -262,8 +324,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 					tid);
 #endif
 		ret = -ENOMEM;
-		goto err_unlock_sta;
+		goto err_return_queue;
 	}
+
 	/* Tx timer */
 	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
 			sta_addba_resp_timer_expired;
@@ -271,49 +334,25 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			(unsigned long)&sta->timer_to_tid[tid];
 	init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
 
-	if (hw->ampdu_queues) {
-		/* create a new queue for this aggregation */
-		ret = ieee80211_ht_agg_queue_add(local, sta, tid);
-
-		/* case no queue is available to aggregation
-		 * don't switch to aggregation */
-		if (ret) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
-			printk(KERN_DEBUG "BA request denied - "
-			       "queue unavailable for tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-			goto err_unlock_queue;
-		}
-	}
-	sdata = sta->sdata;
-
 	/* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
 	 * call back right away, it must see that the flow has begun */
 	*state |= HT_ADDBA_REQUESTED_MSK;
 
-	/* This is slightly racy because the queue isn't stopped */
 	start_seq_num = sta->tid_seq[tid];
 
 	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
 				       &sta->sta, tid, &start_seq_num);
 
 	if (ret) {
-		/* No need to requeue the packets in the agg queue, since we
-		 * held the tx lock: no packet could be enqueued to the newly
-		 * allocated queue */
-		if (hw->ampdu_queues)
-			ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "BA request denied - HW unavailable for"
 					" tid %d\n", tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 		*state = HT_AGG_STATE_IDLE;
-		goto err_unlock_queue;
+		goto err_free;
 	}
+	sta->tid_to_tx_q[tid] = qn;
 
-	/* Will put all the packets in the new SW queue */
-	if (hw->ampdu_queues)
-		ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
 	spin_unlock_bh(&sta->lock);
 
 	/* send an addBA request */
@@ -322,7 +361,6 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			sta->ampdu_mlme.dialog_token_allocator;
 	sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
 
-
 	ieee80211_send_addba_request(sta->sdata, ra, tid,
 			 sta->ampdu_mlme.tid_tx[tid]->dialog_token,
 			 sta->ampdu_mlme.tid_tx[tid]->ssn,
@@ -334,15 +372,24 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 #ifdef CONFIG_MAC80211_HT_DEBUG
 	printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
 #endif
-	goto exit;
+	goto unlock;
 
-err_unlock_queue:
+ err_free:
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
 	sta->ampdu_mlme.tid_tx[tid] = NULL;
-	ret = -EBUSY;
-err_unlock_sta:
+ err_return_queue:
+	if (qn >= 0) {
+		/* We failed, so start queue again right away. */
+		ieee80211_wake_queue_by_reason(hw, hw->queues + qn,
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		/* give queue back to pool */
+		spin_lock(&local->queue_stop_reason_lock);
+		local->ampdu_ac_queue[qn] = -1;
+		spin_unlock(&local->queue_stop_reason_lock);
+	}
+ err_unlock_sta:
 	spin_unlock_bh(&sta->lock);
-exit:
+ unlock:
 	rcu_read_unlock();
 	return ret;
 }
@@ -375,7 +422,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	state = &sta->ampdu_mlme.tid_state_tx[tid];
 	spin_lock_bh(&sta->lock);
 
-	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+	if (WARN_ON(!(*state & HT_ADDBA_REQUESTED_MSK))) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
 				*state);
@@ -385,7 +432,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		return;
 	}
 
-	WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
+	if (WARN_ON(*state & HT_ADDBA_DRV_READY_MSK))
+		goto out;
 
 	*state |= HT_ADDBA_DRV_READY_MSK;
 
@@ -393,9 +441,18 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
 #endif
-		if (hw->ampdu_queues)
-			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		if (hw->ampdu_queues) {
+			/*
+			 * Wake up this queue, we stopped it earlier,
+			 * this will in turn wake the entire AC.
+			 */
+			ieee80211_wake_queue_by_reason(hw,
+				hw->queues + sta->tid_to_tx_q[tid],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		}
 	}
+
+ out:
 	spin_unlock_bh(&sta->lock);
 	rcu_read_unlock();
 }
@@ -485,7 +542,6 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct sta_info *sta;
 	u8 *state;
-	int agg_queue;
 
 	if (tid >= STA_TID_NUM) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -527,19 +583,19 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 		ieee80211_send_delba(sta->sdata, ra, tid,
 			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
 
-	if (hw->ampdu_queues) {
-		agg_queue = sta->tid_to_tx_q[tid];
-		ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
+	spin_lock_bh(&sta->lock);
 
-		/* We just requeued the all the frames that were in the
-		 * removed queue, and since we might miss a softirq we do
-		 * netif_schedule_queue.  ieee80211_wake_queue is not used
-		 * here as this queue is not necessarily stopped
+	if (*state & HT_AGG_STATE_INITIATOR_MSK &&
+	    hw->ampdu_queues) {
+		/*
+		 * Wake up this queue, we stopped it earlier,
+		 * this will in turn wake the entire AC.
 		 */
-		netif_schedule_queue(netdev_get_tx_queue(local->mdev,
-							 agg_queue));
+		ieee80211_wake_queue_by_reason(hw,
+			hw->queues + sta->tid_to_tx_q[tid],
+			IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
 	}
-	spin_lock_bh(&sta->lock);
+
 	*state = HT_AGG_STATE_IDLE;
 	sta->ampdu_mlme.addba_req_num[tid] = 0;
 	kfree(sta->ampdu_mlme.tid_tx[tid]);
@@ -613,12 +669,21 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 	if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
 			== WLAN_STATUS_SUCCESS) {
+		u8 curstate = *state;
+
 		*state |= HT_ADDBA_RECEIVED_MSK;
-		sta->ampdu_mlme.addba_req_num[tid] = 0;
 
-		if (*state == HT_AGG_STATE_OPERATIONAL &&
-		    local->hw.ampdu_queues)
-			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		if (hw->ampdu_queues && *state != curstate &&
+		    *state == HT_AGG_STATE_OPERATIONAL) {
+			/*
+			 * Wake up this queue, we stopped it earlier,
+			 * this will in turn wake the entire AC.
+			 */
+			ieee80211_wake_queue_by_reason(hw,
+				hw->queues + sta->tid_to_tx_q[tid],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+		}
+		sta->ampdu_mlme.addba_req_num[tid] = 0;
 
 		if (local->ops->ampdu_action) {
 			(void)local->ops->ampdu_action(hw,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index c8d969be440..c43129efc3b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -341,11 +341,15 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	sinfo->filled = STATION_INFO_INACTIVE_TIME |
 			STATION_INFO_RX_BYTES |
 			STATION_INFO_TX_BYTES |
+			STATION_INFO_RX_PACKETS |
+			STATION_INFO_TX_PACKETS |
 			STATION_INFO_TX_BITRATE;
 
 	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 	sinfo->rx_bytes = sta->rx_bytes;
 	sinfo->tx_bytes = sta->tx_bytes;
+	sinfo->rx_packets = sta->rx_packets;
+	sinfo->tx_packets = sta->tx_packets;
 
 	if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
 		sinfo->filled |= STATION_INFO_SIGNAL;
@@ -1180,45 +1184,45 @@ static int set_mgmt_extra_ie_sta(struct ieee80211_sub_if_data *sdata,
 				 u8 subtype, u8 *ies, size_t ies_len)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
 	switch (subtype) {
 	case IEEE80211_STYPE_PROBE_REQ >> 4:
 		if (local->ops->hw_scan)
 			break;
-		kfree(ifsta->ie_probereq);
-		ifsta->ie_probereq = ies;
-		ifsta->ie_probereq_len = ies_len;
+		kfree(ifmgd->ie_probereq);
+		ifmgd->ie_probereq = ies;
+		ifmgd->ie_probereq_len = ies_len;
 		return 0;
 	case IEEE80211_STYPE_PROBE_RESP >> 4:
-		kfree(ifsta->ie_proberesp);
-		ifsta->ie_proberesp = ies;
-		ifsta->ie_proberesp_len = ies_len;
+		kfree(ifmgd->ie_proberesp);
+		ifmgd->ie_proberesp = ies;
+		ifmgd->ie_proberesp_len = ies_len;
 		return 0;
 	case IEEE80211_STYPE_AUTH >> 4:
-		kfree(ifsta->ie_auth);
-		ifsta->ie_auth = ies;
-		ifsta->ie_auth_len = ies_len;
+		kfree(ifmgd->ie_auth);
+		ifmgd->ie_auth = ies;
+		ifmgd->ie_auth_len = ies_len;
 		return 0;
 	case IEEE80211_STYPE_ASSOC_REQ >> 4:
-		kfree(ifsta->ie_assocreq);
-		ifsta->ie_assocreq = ies;
-		ifsta->ie_assocreq_len = ies_len;
+		kfree(ifmgd->ie_assocreq);
+		ifmgd->ie_assocreq = ies;
+		ifmgd->ie_assocreq_len = ies_len;
 		return 0;
 	case IEEE80211_STYPE_REASSOC_REQ >> 4:
-		kfree(ifsta->ie_reassocreq);
-		ifsta->ie_reassocreq = ies;
-		ifsta->ie_reassocreq_len = ies_len;
+		kfree(ifmgd->ie_reassocreq);
+		ifmgd->ie_reassocreq = ies;
+		ifmgd->ie_reassocreq_len = ies_len;
 		return 0;
 	case IEEE80211_STYPE_DEAUTH >> 4:
-		kfree(ifsta->ie_deauth);
-		ifsta->ie_deauth = ies;
-		ifsta->ie_deauth_len = ies_len;
+		kfree(ifmgd->ie_deauth);
+		ifmgd->ie_deauth = ies;
+		ifmgd->ie_deauth_len = ies_len;
 		return 0;
 	case IEEE80211_STYPE_DISASSOC >> 4:
-		kfree(ifsta->ie_disassoc);
-		ifsta->ie_disassoc = ies;
-		ifsta->ie_disassoc_len = ies_len;
+		kfree(ifmgd->ie_disassoc);
+		ifmgd->ie_disassoc = ies;
+		ifmgd->ie_disassoc_len = ies_len;
 		return 0;
 	}
 
@@ -1248,7 +1252,6 @@ static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
 
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
 		ret = set_mgmt_extra_ie_sta(sdata, params->subtype,
 					    ies, ies_len);
 		break;
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index c5421930172..e3420329f4e 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -94,31 +94,31 @@ IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
 IEEE80211_IF_FILE(force_unicast_rateidx, force_unicast_rateidx, DEC);
 IEEE80211_IF_FILE(max_ratectrl_rateidx, max_ratectrl_rateidx, DEC);
 
-/* STA/IBSS attributes */
-IEEE80211_IF_FILE(state, u.sta.state, DEC);
-IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
-IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
-IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
-IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
-IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
-IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
-IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
-IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
-IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
-IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
-IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
-IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
+/* STA attributes */
+IEEE80211_IF_FILE(state, u.mgd.state, DEC);
+IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
+IEEE80211_IF_FILE(prev_bssid, u.mgd.prev_bssid, MAC);
+IEEE80211_IF_FILE(ssid_len, u.mgd.ssid_len, SIZE);
+IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
+IEEE80211_IF_FILE(ap_capab, u.mgd.ap_capab, HEX);
+IEEE80211_IF_FILE(capab, u.mgd.capab, HEX);
+IEEE80211_IF_FILE(extra_ie_len, u.mgd.extra_ie_len, SIZE);
+IEEE80211_IF_FILE(auth_tries, u.mgd.auth_tries, DEC);
+IEEE80211_IF_FILE(assoc_tries, u.mgd.assoc_tries, DEC);
+IEEE80211_IF_FILE(auth_algs, u.mgd.auth_algs, HEX);
+IEEE80211_IF_FILE(auth_alg, u.mgd.auth_alg, DEC);
+IEEE80211_IF_FILE(auth_transaction, u.mgd.auth_transaction, DEC);
 
 static ssize_t ieee80211_if_fmt_flags(
 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 {
 	return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
-		 sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
-		 sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
-		 sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
-		 sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
-		 sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
-		 sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
+		 sdata->u.mgd.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
+		 sdata->u.mgd.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
+		 sdata->u.mgd.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
+		 sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
+		 sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
+		 sdata->u.mgd.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
 		 sdata->vif.bss_conf.use_cts_prot ? "CTS prot\n" : "");
 }
 __IEEE80211_IF_FILE(flags);
@@ -283,9 +283,11 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
 #endif
 		break;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
 		add_sta_files(sdata);
 		break;
+	case NL80211_IFTYPE_ADHOC:
+		/* XXX */
+		break;
 	case NL80211_IFTYPE_AP:
 		add_ap_files(sdata);
 		break;
@@ -418,9 +420,11 @@ static void del_files(struct ieee80211_sub_if_data *sdata)
 #endif
 		break;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
 		del_sta_files(sdata);
 		break;
+	case NL80211_IFTYPE_ADHOC:
+		/* XXX */
+		break;
 	case NL80211_IFTYPE_AP:
 		del_ap_files(sdata);
 		break;
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 82ea0b63a38..4e3c72f20de 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -17,6 +17,7 @@
 #include <net/wireless.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "rate.h"
 
 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 				       struct ieee80211_ht_cap *ht_cap_ie,
@@ -93,7 +94,9 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_bss_ht_conf ht;
+	struct sta_info *sta;
 	u32 changed = 0;
 	bool enable_ht = true, ht_changed;
 	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
@@ -136,6 +139,16 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	if (ht_changed) {
                 /* channel_type change automatically detected */
 		ieee80211_hw_config(local, 0);
+
+		rcu_read_lock();
+
+		sta = sta_info_get(local, ifmgd->bssid);
+		if (sta)
+			rate_control_rate_update(local, sband, sta,
+						 IEEE80211_RC_HT_CHANGED);
+
+		rcu_read_unlock();
+
         }
 
 	/* disable HT */
@@ -169,7 +182,6 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  u16 initiator, u16 reason_code)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u16 params;
@@ -190,8 +202,9 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
 	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		memcpy(mgmt->bssid, sdata->dev->dev_addr, ETH_ALEN);
-	else
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
+
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
new file mode 100644
index 00000000000..a96ce9dfc6b
--- /dev/null
+++ b/net/mac80211/ibss.c
@@ -0,0 +1,905 @@
+/*
+ * IBSS mode implementation
+ * Copyright 2003-2008, Jouni Malinen <j@w1.fi>
+ * Copyright 2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ * Copyright 2009, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+#include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
+#include <net/mac80211.h>
+#include <asm/unaligned.h>
+
+#include "ieee80211_i.h"
+#include "rate.h"
+
+#define IEEE80211_SCAN_INTERVAL (2 * HZ)
+#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
+#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
+
+#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
+#define IEEE80211_IBSS_MERGE_DELAY 0x400000
+#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
+
+#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
+
+
+static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
+					struct ieee80211_mgmt *mgmt,
+					size_t len)
+{
+	u16 auth_alg, auth_transaction, status_code;
+
+	if (len < 24 + 6)
+		return;
+
+	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
+	auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
+	status_code = le16_to_cpu(mgmt->u.auth.status_code);
+
+	/*
+	 * IEEE 802.11 standard does not require authentication in IBSS
+	 * networks and most implementations do not seem to use it.
+	 * However, try to reply to authentication attempts if someone
+	 * has actually implemented this.
+	 */
+	if (auth_alg == WLAN_AUTH_OPEN && auth_transaction == 1)
+		ieee80211_send_auth(sdata, 2, WLAN_AUTH_OPEN, NULL, 0,
+				    sdata->u.ibss.bssid, 0);
+}
+
+static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+				     const u8 *bssid, const int beacon_int,
+				     const int freq,
+				     const size_t supp_rates_len,
+				     const u8 *supp_rates,
+				     const u16 capability)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	int res = 0, rates, i, j;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u8 *pos;
+	struct ieee80211_supported_band *sband;
+	union iwreq_data wrqu;
+
+	if (local->ops->reset_tsf) {
+		/* Reset own TSF to allow time synchronization work. */
+		local->ops->reset_tsf(local_to_hw(local));
+	}
+
+	if ((ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) &&
+	   memcmp(ifibss->bssid, bssid, ETH_ALEN) == 0)
+		return res;
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
+		       "response\n", sdata->dev->name);
+		return -ENOMEM;
+	}
+
+	if (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) {
+		/* Remove possible STA entries from other IBSS networks. */
+		sta_info_flush_delayed(sdata);
+	}
+
+	memcpy(ifibss->bssid, bssid, ETH_ALEN);
+	res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
+	if (res)
+		return res;
+
+	local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
+
+	sdata->drop_unencrypted = capability &
+		WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+
+	res = ieee80211_set_freq(sdata, freq);
+
+	if (res)
+		return res;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	/* Build IBSS probe response */
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	mgmt = (struct ieee80211_mgmt *)
+		skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+	memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_PROBE_RESP);
+	memset(mgmt->da, 0xff, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
+	mgmt->u.beacon.beacon_int =
+		cpu_to_le16(local->hw.conf.beacon_int);
+	mgmt->u.beacon.capab_info = cpu_to_le16(capability);
+
+	pos = skb_put(skb, 2 + ifibss->ssid_len);
+	*pos++ = WLAN_EID_SSID;
+	*pos++ = ifibss->ssid_len;
+	memcpy(pos, ifibss->ssid, ifibss->ssid_len);
+
+	rates = supp_rates_len;
+	if (rates > 8)
+		rates = 8;
+	pos = skb_put(skb, 2 + rates);
+	*pos++ = WLAN_EID_SUPP_RATES;
+	*pos++ = rates;
+	memcpy(pos, supp_rates, rates);
+
+	if (sband->band == IEEE80211_BAND_2GHZ) {
+		pos = skb_put(skb, 2 + 1);
+		*pos++ = WLAN_EID_DS_PARAMS;
+		*pos++ = 1;
+		*pos++ = ieee80211_frequency_to_channel(freq);
+	}
+
+	pos = skb_put(skb, 2 + 2);
+	*pos++ = WLAN_EID_IBSS_PARAMS;
+	*pos++ = 2;
+	/* FIX: set ATIM window based on scan results */
+	*pos++ = 0;
+	*pos++ = 0;
+
+	if (supp_rates_len > 8) {
+		rates = supp_rates_len - 8;
+		pos = skb_put(skb, 2 + rates);
+		*pos++ = WLAN_EID_EXT_SUPP_RATES;
+		*pos++ = rates;
+		memcpy(pos, &supp_rates[8], rates);
+	}
+
+	ifibss->probe_resp = skb;
+
+	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
+				   IEEE80211_IFCC_BEACON_ENABLED);
+
+
+	rates = 0;
+	for (i = 0; i < supp_rates_len; i++) {
+		int bitrate = (supp_rates[i] & 0x7f) * 5;
+		for (j = 0; j < sband->n_bitrates; j++)
+			if (sband->bitrates[j].bitrate == bitrate)
+				rates |= BIT(j);
+	}
+
+	ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
+
+	ifibss->flags |= IEEE80211_IBSS_PREV_BSSID_SET;
+	ifibss->state = IEEE80211_IBSS_MLME_JOINED;
+	mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+	memset(&wrqu, 0, sizeof(wrqu));
+	memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
+	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
+
+	return res;
+}
+
+static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+				   struct ieee80211_bss *bss)
+{
+	return __ieee80211_sta_join_ibss(sdata,
+					 bss->cbss.bssid,
+					 bss->cbss.beacon_interval,
+					 bss->cbss.channel->center_freq,
+					 bss->supp_rates_len, bss->supp_rates,
+					 bss->cbss.capability);
+}
+
+static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
+				  struct ieee80211_mgmt *mgmt,
+				  size_t len,
+				  struct ieee80211_rx_status *rx_status,
+				  struct ieee802_11_elems *elems,
+				  bool beacon)
+{
+	struct ieee80211_local *local = sdata->local;
+	int freq;
+	struct ieee80211_bss *bss;
+	struct sta_info *sta;
+	struct ieee80211_channel *channel;
+	u64 beacon_timestamp, rx_timestamp;
+	u32 supp_rates = 0;
+	enum ieee80211_band band = rx_status->band;
+
+	if (elems->ds_params && elems->ds_params_len == 1)
+		freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
+	else
+		freq = rx_status->freq;
+
+	channel = ieee80211_get_channel(local->hw.wiphy, freq);
+
+	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+		return;
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC && elems->supp_rates &&
+	    memcmp(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN) == 0) {
+		supp_rates = ieee80211_sta_get_rates(local, elems, band);
+
+		rcu_read_lock();
+
+		sta = sta_info_get(local, mgmt->sa);
+		if (sta) {
+			u32 prev_rates;
+
+			prev_rates = sta->sta.supp_rates[band];
+			/* make sure mandatory rates are always added */
+			sta->sta.supp_rates[band] = supp_rates |
+				ieee80211_mandatory_rates(local, band);
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+			if (sta->sta.supp_rates[band] != prev_rates)
+				printk(KERN_DEBUG "%s: updated supp_rates set "
+				    "for %pM based on beacon info (0x%llx | "
+				    "0x%llx -> 0x%llx)\n",
+				    sdata->dev->name,
+				    sta->sta.addr,
+				    (unsigned long long) prev_rates,
+				    (unsigned long long) supp_rates,
+				    (unsigned long long) sta->sta.supp_rates[band]);
+#endif
+		} else
+			ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
+
+		rcu_read_unlock();
+	}
+
+	bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
+					channel, beacon);
+	if (!bss)
+		return;
+
+	/* was just updated in ieee80211_bss_info_update */
+	beacon_timestamp = bss->cbss.tsf;
+
+	/* check if we need to merge IBSS */
+
+	/* merge only on beacons (???) */
+	if (!beacon)
+		goto put_bss;
+
+	/* we use a fixed BSSID */
+	if (sdata->u.ibss.flags & IEEE80211_IBSS_BSSID_SET)
+		goto put_bss;
+
+	/* not an IBSS */
+	if (!(bss->cbss.capability & WLAN_CAPABILITY_IBSS))
+		goto put_bss;
+
+	/* different channel */
+	if (bss->cbss.channel != local->oper_channel)
+		goto put_bss;
+
+	/* different SSID */
+	if (elems->ssid_len != sdata->u.ibss.ssid_len ||
+	    memcmp(elems->ssid, sdata->u.ibss.ssid,
+				sdata->u.ibss.ssid_len))
+		goto put_bss;
+
+	/* same BSSID */
+	if (memcmp(bss->cbss.bssid, sdata->u.ibss.bssid, ETH_ALEN) == 0)
+		goto put_bss;
+
+	if (rx_status->flag & RX_FLAG_TSFT) {
+		/*
+		 * For correct IBSS merging we need mactime; since mactime is
+		 * defined as the time the first data symbol of the frame hits
+		 * the PHY, and the timestamp of the beacon is defined as "the
+		 * time that the data symbol containing the first bit of the
+		 * timestamp is transmitted to the PHY plus the transmitting
+		 * STA's delays through its local PHY from the MAC-PHY
+		 * interface to its interface with the WM" (802.11 11.1.2)
+		 * - equals the time this bit arrives at the receiver - we have
+		 * to take into account the offset between the two.
+		 *
+		 * E.g. at 1 MBit that means mactime is 192 usec earlier
+		 * (=24 bytes * 8 usecs/byte) than the beacon timestamp.
+		 */
+		int rate;
+
+		if (rx_status->flag & RX_FLAG_HT)
+			rate = 65; /* TODO: HT rates */
+		else
+			rate = local->hw.wiphy->bands[band]->
+				bitrates[rx_status->rate_idx].bitrate;
+
+		rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
+	} else if (local && local->ops && local->ops->get_tsf)
+		/* second best option: get current TSF */
+		rx_timestamp = local->ops->get_tsf(local_to_hw(local));
+	else
+		/* can't merge without knowing the TSF */
+		rx_timestamp = -1LLU;
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+	printk(KERN_DEBUG "RX beacon SA=%pM BSSID="
+	       "%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n",
+	       mgmt->sa, mgmt->bssid,
+	       (unsigned long long)rx_timestamp,
+	       (unsigned long long)beacon_timestamp,
+	       (unsigned long long)(rx_timestamp - beacon_timestamp),
+	       jiffies);
+#endif
+
+	/* give slow hardware some time to do the TSF sync */
+	if (rx_timestamp < IEEE80211_IBSS_MERGE_DELAY)
+		goto put_bss;
+
+	if (beacon_timestamp > rx_timestamp) {
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+		printk(KERN_DEBUG "%s: beacon TSF higher than "
+		       "local TSF - IBSS merge with BSSID %pM\n",
+		       sdata->dev->name, mgmt->bssid);
+#endif
+		ieee80211_sta_join_ibss(sdata, bss);
+		ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
+	}
+
+ put_bss:
+	ieee80211_rx_bss_put(local, bss);
+}
+
+/*
+ * Add a new IBSS station, will also be called by the RX code when,
+ * in IBSS mode, receiving a frame from a yet-unknown station, hence
+ * must be callable in atomic context.
+ */
+struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
+					u8 *bssid,u8 *addr, u32 supp_rates)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
+	int band = local->hw.conf.channel->band;
+
+	/* TODO: Could consider removing the least recently used entry and
+	 * allow new one to be added. */
+	if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "%s: No room for a new IBSS STA "
+			       "entry %pM\n", sdata->dev->name, addr);
+		}
+		return NULL;
+	}
+
+	if (compare_ether_addr(bssid, sdata->u.ibss.bssid))
+		return NULL;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: Adding new IBSS station %pM (dev=%s)\n",
+	       wiphy_name(local->hw.wiphy), addr, sdata->dev->name);
+#endif
+
+	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
+	if (!sta)
+		return NULL;
+
+	set_sta_flags(sta, WLAN_STA_AUTHORIZED);
+
+	/* make sure mandatory rates are always added */
+	sta->sta.supp_rates[band] = supp_rates |
+			ieee80211_mandatory_rates(local, band);
+
+	rate_control_rate_init(sta);
+
+	if (sta_info_insert(sta))
+		return NULL;
+
+	return sta;
+}
+
+static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	int active = 0;
+	struct sta_info *sta;
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (sta->sdata == sdata &&
+		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
+			       jiffies)) {
+			active++;
+			break;
+		}
+	}
+
+	rcu_read_unlock();
+
+	return active;
+}
+
+
+static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+	ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
+	if (ieee80211_sta_active_ibss(sdata))
+		return;
+
+	if ((ifibss->flags & IEEE80211_IBSS_BSSID_SET) &&
+	    (!(ifibss->flags & IEEE80211_IBSS_AUTO_CHANNEL_SEL)))
+		return;
+
+	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
+	       "IBSS networks with same SSID (merge)\n", sdata->dev->name);
+
+	/* XXX maybe racy? */
+	if (sdata->local->scan_req)
+		return;
+
+	memcpy(sdata->local->int_scan_req.ssids[0].ssid,
+	       ifibss->ssid, IEEE80211_MAX_SSID_LEN);
+	sdata->local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
+	ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
+}
+
+static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
+	u8 *pos;
+	u8 bssid[ETH_ALEN];
+	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
+	u16 capability;
+	int i;
+
+	if (ifibss->flags & IEEE80211_IBSS_BSSID_SET) {
+		memcpy(bssid, ifibss->bssid, ETH_ALEN);
+	} else {
+		/* Generate random, not broadcast, locally administered BSSID. Mix in
+		 * own MAC address to make sure that devices that do not have proper
+		 * random number generator get different BSSID. */
+		get_random_bytes(bssid, ETH_ALEN);
+		for (i = 0; i < ETH_ALEN; i++)
+			bssid[i] ^= sdata->dev->dev_addr[i];
+		bssid[0] &= ~0x01;
+		bssid[0] |= 0x02;
+	}
+
+	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
+	       sdata->dev->name, bssid);
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	if (local->hw.conf.beacon_int == 0)
+		local->hw.conf.beacon_int = 100;
+
+	capability = WLAN_CAPABILITY_IBSS;
+
+	if (sdata->default_key)
+		capability |= WLAN_CAPABILITY_PRIVACY;
+	else
+		sdata->drop_unencrypted = 0;
+
+	pos = supp_rates;
+	for (i = 0; i < sband->n_bitrates; i++) {
+		int rate = sband->bitrates[i].bitrate;
+		*pos++ = (u8) (rate / 5);
+	}
+
+	return __ieee80211_sta_join_ibss(sdata,
+					 bssid, local->hw.conf.beacon_int,
+					 local->hw.conf.channel->center_freq,
+					 sband->n_bitrates, supp_rates,
+					 capability);
+}
+
+static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_bss *bss;
+	const u8 *bssid = NULL;
+	int active_ibss;
+
+	if (ifibss->ssid_len == 0)
+		return -EINVAL;
+
+	active_ibss = ieee80211_sta_active_ibss(sdata);
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+	printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
+	       sdata->dev->name, active_ibss);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+	if (active_ibss)
+		return 0;
+
+	if (ifibss->flags & IEEE80211_IBSS_BSSID_SET)
+		bssid = ifibss->bssid;
+	bss = (void *)cfg80211_get_bss(local->hw.wiphy, NULL, bssid,
+				       ifibss->ssid, ifibss->ssid_len,
+				       WLAN_CAPABILITY_IBSS,
+				       WLAN_CAPABILITY_IBSS);
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+	if (bss)
+		printk(KERN_DEBUG "   sta_find_ibss: selected %pM current "
+		       "%pM\n", bss->cbss.bssid, ifibss->bssid);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+	if (bss &&
+	    (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) ||
+	     memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN))) {
+		int ret;
+
+		printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
+		       " based on configured SSID\n",
+		       sdata->dev->name, bss->cbss.bssid);
+
+		ret = ieee80211_sta_join_ibss(sdata, bss);
+		ieee80211_rx_bss_put(local, bss);
+		return ret;
+	} else if (bss)
+		ieee80211_rx_bss_put(local, bss);
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+	printk(KERN_DEBUG "   did not try to join ibss\n");
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+	/* Selected IBSS not found in current scan results - try to scan */
+	if (ifibss->state == IEEE80211_IBSS_MLME_JOINED &&
+	    !ieee80211_sta_active_ibss(sdata)) {
+		mod_timer(&ifibss->timer, jiffies +
+					  IEEE80211_IBSS_MERGE_INTERVAL);
+	} else if (time_after(jiffies, local->last_scan_completed +
+					IEEE80211_SCAN_INTERVAL)) {
+		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
+		       "join\n", sdata->dev->name);
+
+		/* XXX maybe racy? */
+		if (local->scan_req)
+			return -EBUSY;
+
+		memcpy(local->int_scan_req.ssids[0].ssid,
+		       ifibss->ssid, IEEE80211_MAX_SSID_LEN);
+		local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
+		return ieee80211_request_scan(sdata, &local->int_scan_req);
+	} else if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) {
+		int interval = IEEE80211_SCAN_INTERVAL;
+
+		if (time_after(jiffies, ifibss->ibss_join_req +
+			       IEEE80211_IBSS_JOIN_TIMEOUT)) {
+			if (!(local->oper_channel->flags &
+						IEEE80211_CHAN_NO_IBSS))
+				return ieee80211_sta_create_ibss(sdata);
+			printk(KERN_DEBUG "%s: IBSS not allowed on"
+			       " %d MHz\n", sdata->dev->name,
+			       local->hw.conf.channel->center_freq);
+
+			/* No IBSS found - decrease scan interval and continue
+			 * scanning. */
+			interval = IEEE80211_SCAN_INTERVAL_SLOW;
+		}
+
+		ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+		mod_timer(&ifibss->timer, jiffies + interval);
+		return 0;
+	}
+
+	return 0;
+}
+
+static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
+					struct ieee80211_mgmt *mgmt,
+					size_t len)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	int tx_last_beacon;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *resp;
+	u8 *pos, *end;
+
+	if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
+	    len < 24 + 2 || !ifibss->probe_resp)
+		return;
+
+	if (local->ops->tx_last_beacon)
+		tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
+	else
+		tx_last_beacon = 1;
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+	printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
+	       " (tx_last_beacon=%d)\n",
+	       sdata->dev->name, mgmt->sa, mgmt->da,
+	       mgmt->bssid, tx_last_beacon);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+	if (!tx_last_beacon)
+		return;
+
+	if (memcmp(mgmt->bssid, ifibss->bssid, ETH_ALEN) != 0 &&
+	    memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
+		return;
+
+	end = ((u8 *) mgmt) + len;
+	pos = mgmt->u.probe_req.variable;
+	if (pos[0] != WLAN_EID_SSID ||
+	    pos + 2 + pos[1] > end) {
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+		printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
+		       "from %pM\n",
+		       sdata->dev->name, mgmt->sa);
+#endif
+		return;
+	}
+	if (pos[1] != 0 &&
+	    (pos[1] != ifibss->ssid_len ||
+	     memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len) != 0)) {
+		/* Ignore ProbeReq for foreign SSID */
+		return;
+	}
+
+	/* Reply with ProbeResp */
+	skb = skb_copy(ifibss->probe_resp, GFP_KERNEL);
+	if (!skb)
+		return;
+
+	resp = (struct ieee80211_mgmt *) skb->data;
+	memcpy(resp->da, mgmt->sa, ETH_ALEN);
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+	printk(KERN_DEBUG "%s: Sending ProbeResp to %pM\n",
+	       sdata->dev->name, resp->da);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_mgmt *mgmt,
+					 size_t len,
+					 struct ieee80211_rx_status *rx_status)
+{
+	size_t baselen;
+	struct ieee802_11_elems elems;
+
+	if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
+		return; /* ignore ProbeResp to foreign address */
+
+	baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
+	if (baselen > len)
+		return;
+
+	ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
+				&elems);
+
+	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
+}
+
+static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_mgmt *mgmt,
+				     size_t len,
+				     struct ieee80211_rx_status *rx_status)
+{
+	size_t baselen;
+	struct ieee802_11_elems elems;
+
+	/* Process beacon from the current BSS */
+	baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
+	if (baselen > len)
+		return;
+
+	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
+
+	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
+}
+
+static void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
+					  struct sk_buff *skb)
+{
+	struct ieee80211_rx_status *rx_status;
+	struct ieee80211_mgmt *mgmt;
+	u16 fc;
+
+	rx_status = (struct ieee80211_rx_status *) skb->cb;
+	mgmt = (struct ieee80211_mgmt *) skb->data;
+	fc = le16_to_cpu(mgmt->frame_control);
+
+	switch (fc & IEEE80211_FCTL_STYPE) {
+	case IEEE80211_STYPE_PROBE_REQ:
+		ieee80211_rx_mgmt_probe_req(sdata, mgmt, skb->len);
+		break;
+	case IEEE80211_STYPE_PROBE_RESP:
+		ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len,
+					     rx_status);
+		break;
+	case IEEE80211_STYPE_BEACON:
+		ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
+					 rx_status);
+		break;
+	case IEEE80211_STYPE_AUTH:
+		ieee80211_rx_mgmt_auth_ibss(sdata, mgmt, skb->len);
+		break;
+	}
+
+	kfree_skb(skb);
+}
+
+static void ieee80211_ibss_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data, u.ibss.work);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_ibss *ifibss;
+	struct sk_buff *skb;
+
+	if (!netif_running(sdata->dev))
+		return;
+
+	if (local->sw_scanning || local->hw_scanning)
+		return;
+
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_ADHOC))
+		return;
+	ifibss = &sdata->u.ibss;
+
+	while ((skb = skb_dequeue(&ifibss->skb_queue)))
+		ieee80211_ibss_rx_queued_mgmt(sdata, skb);
+
+	if (!test_and_clear_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request))
+		return;
+
+	switch (ifibss->state) {
+	case IEEE80211_IBSS_MLME_SEARCH:
+		ieee80211_sta_find_ibss(sdata);
+		break;
+	case IEEE80211_IBSS_MLME_JOINED:
+		ieee80211_sta_merge_ibss(sdata);
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
+}
+
+static void ieee80211_ibss_timer(unsigned long data)
+{
+	struct ieee80211_sub_if_data *sdata =
+		(struct ieee80211_sub_if_data *) data;
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+
+	set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
+	queue_work(local->hw.workqueue, &ifibss->work);
+}
+
+void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	INIT_WORK(&ifibss->work, ieee80211_ibss_work);
+	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
+		    (unsigned long) sdata);
+	skb_queue_head_init(&ifibss->skb_queue);
+
+	ifibss->flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
+			IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+}
+
+int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	ifibss->flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
+
+	if (ifibss->ssid_len)
+		ifibss->flags |= IEEE80211_IBSS_SSID_SET;
+	else
+		ifibss->flags &= ~IEEE80211_IBSS_SSID_SET;
+
+	ifibss->ibss_join_req = jiffies;
+	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+
+	return ieee80211_sta_find_ibss(sdata);
+}
+
+int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	if (len > IEEE80211_MAX_SSID_LEN)
+		return -EINVAL;
+
+	if (ifibss->ssid_len != len || memcmp(ifibss->ssid, ssid, len) != 0) {
+		memset(ifibss->ssid, 0, sizeof(ifibss->ssid));
+		memcpy(ifibss->ssid, ssid, len);
+		ifibss->ssid_len = len;
+	}
+
+	return ieee80211_ibss_commit(sdata);
+}
+
+int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	memcpy(ssid, ifibss->ssid, ifibss->ssid_len);
+	*len = ifibss->ssid_len;
+
+	return 0;
+}
+
+int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	if (is_valid_ether_addr(bssid)) {
+		memcpy(ifibss->bssid, bssid, ETH_ALEN);
+		ifibss->flags |= IEEE80211_IBSS_BSSID_SET;
+	} else {
+		memset(ifibss->bssid, 0, ETH_ALEN);
+		ifibss->flags &= ~IEEE80211_IBSS_BSSID_SET;
+	}
+
+	if (netif_running(sdata->dev)) {
+		if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
+			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
+			       "the low-level driver\n", sdata->dev->name);
+		}
+	}
+
+	return ieee80211_ibss_commit(sdata);
+}
+
+/* scan finished notification */
+void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
+{
+	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
+	struct ieee80211_if_ibss *ifibss;
+
+	if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+		ifibss = &sdata->u.ibss;
+		if ((!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) ||
+		    !ieee80211_sta_active_ibss(sdata))
+			ieee80211_sta_find_ibss(sdata);
+	}
+}
+
+ieee80211_rx_result
+ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		       struct ieee80211_rx_status *rx_status)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_mgmt *mgmt;
+	u16 fc;
+
+	if (skb->len < 24)
+		return RX_DROP_MONITOR;
+
+	mgmt = (struct ieee80211_mgmt *) skb->data;
+	fc = le16_to_cpu(mgmt->frame_control);
+
+	switch (fc & IEEE80211_FCTL_STYPE) {
+	case IEEE80211_STYPE_PROBE_RESP:
+	case IEEE80211_STYPE_BEACON:
+		memcpy(skb->cb, rx_status, sizeof(*rx_status));
+	case IEEE80211_STYPE_PROBE_REQ:
+	case IEEE80211_STYPE_AUTH:
+		skb_queue_tail(&sdata->u.ibss.skb_queue, skb);
+		queue_work(local->hw.workqueue, &sdata->u.ibss.work);
+		return RX_QUEUED;
+	}
+
+	return RX_DROP_MONITOR;
+}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 2cb743ed9f9..ecbc8e0cb3e 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -239,7 +239,7 @@ struct mesh_preq_queue {
 	u8 flags;
 };
 
-/* flags used in struct ieee80211_if_sta.flags */
+/* flags used in struct ieee80211_if_managed.flags */
 #define IEEE80211_STA_SSID_SET		BIT(0)
 #define IEEE80211_STA_BSSID_SET		BIT(1)
 #define IEEE80211_STA_PREV_BSSID_SET	BIT(2)
@@ -262,31 +262,30 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_REQ_AUTH 2
 #define IEEE80211_STA_REQ_RUN  3
 
-/* STA/IBSS MLME states */
-enum ieee80211_sta_mlme_state {
-	IEEE80211_STA_MLME_DISABLED,
-	IEEE80211_STA_MLME_DIRECT_PROBE,
-	IEEE80211_STA_MLME_AUTHENTICATE,
-	IEEE80211_STA_MLME_ASSOCIATE,
-	IEEE80211_STA_MLME_ASSOCIATED,
-	IEEE80211_STA_MLME_IBSS_SEARCH,
-	IEEE80211_STA_MLME_IBSS_JOINED,
-};
-
 /* bitfield of allowed auth algs */
 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
 
-struct ieee80211_if_sta {
+struct ieee80211_if_managed {
 	struct timer_list timer;
 	struct timer_list chswitch_timer;
 	struct work_struct work;
 	struct work_struct chswitch_work;
+
 	u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
+
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	enum ieee80211_sta_mlme_state state;
 	size_t ssid_len;
+
+	enum {
+		IEEE80211_STA_MLME_DISABLED,
+		IEEE80211_STA_MLME_DIRECT_PROBE,
+		IEEE80211_STA_MLME_AUTHENTICATE,
+		IEEE80211_STA_MLME_ASSOCIATE,
+		IEEE80211_STA_MLME_ASSOCIATED,
+	} state;
+
 	u16 aid;
 	u16 ap_capab, capab;
 	u8 *extra_ie; /* to be added to the end of AssocReq */
@@ -319,10 +318,6 @@ struct ieee80211_if_sta {
 		IEEE80211_MFP_REQUIRED
 	} mfp; /* management frame protection */
 
-	unsigned long ibss_join_req;
-	struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
-	u32 supp_rates_bits[IEEE80211_NUM_BANDS];
-
 	int wmm_last_param_set;
 
 	/* Extra IE data for management frames */
@@ -342,6 +337,42 @@ struct ieee80211_if_sta {
 	size_t ie_disassoc_len;
 };
 
+enum ieee80211_ibss_flags {
+	IEEE80211_IBSS_AUTO_CHANNEL_SEL		= BIT(0),
+	IEEE80211_IBSS_AUTO_BSSID_SEL		= BIT(1),
+	IEEE80211_IBSS_BSSID_SET		= BIT(2),
+	IEEE80211_IBSS_PREV_BSSID_SET		= BIT(3),
+	IEEE80211_IBSS_SSID_SET			= BIT(4),
+};
+
+enum ieee80211_ibss_request {
+	IEEE80211_IBSS_REQ_RUN	= 0,
+};
+
+struct ieee80211_if_ibss {
+	struct timer_list timer;
+	struct work_struct work;
+
+	struct sk_buff_head skb_queue;
+
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 ssid_len;
+
+	u32 flags;
+
+	u8 bssid[ETH_ALEN];
+
+	unsigned long request;
+
+	unsigned long ibss_join_req;
+	struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
+
+	enum {
+		IEEE80211_IBSS_MLME_SEARCH,
+		IEEE80211_IBSS_MLME_JOINED,
+	} state;
+};
+
 struct ieee80211_if_mesh {
 	struct work_struct work;
 	struct timer_list housekeeping_timer;
@@ -445,7 +476,8 @@ struct ieee80211_sub_if_data {
 		struct ieee80211_if_ap ap;
 		struct ieee80211_if_wds wds;
 		struct ieee80211_if_vlan vlan;
-		struct ieee80211_if_sta sta;
+		struct ieee80211_if_managed mgd;
+		struct ieee80211_if_ibss ibss;
 #ifdef CONFIG_MAC80211_MESH
 		struct ieee80211_if_mesh mesh;
 #endif
@@ -564,12 +596,10 @@ enum {
 enum queue_stop_reason {
 	IEEE80211_QUEUE_STOP_REASON_DRIVER,
 	IEEE80211_QUEUE_STOP_REASON_PS,
-	IEEE80211_QUEUE_STOP_REASON_CSA
+	IEEE80211_QUEUE_STOP_REASON_CSA,
+	IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
 };
 
-/* maximum number of hardware queues we support. */
-#define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
-
 struct ieee80211_master_priv {
 	struct ieee80211_local *local;
 };
@@ -582,9 +612,15 @@ struct ieee80211_local {
 
 	const struct ieee80211_ops *ops;
 
-	unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
-	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
+	/* AC queue corresponding to each AMPDU queue */
+	s8 ampdu_ac_queue[IEEE80211_MAX_AMPDU_QUEUES];
+	unsigned int amdpu_ac_stop_refcnt[IEEE80211_MAX_AMPDU_QUEUES];
+
+	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES +
+					 IEEE80211_MAX_AMPDU_QUEUES];
+	/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 	spinlock_t queue_stop_reason_lock;
+
 	struct net_device *mdev; /* wmaster# - "master" 802.11 device */
 	int open_count;
 	int monitors, cooked_mntrs;
@@ -888,34 +924,41 @@ void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
 void ieee80211_configure_filter(struct ieee80211_local *local);
+u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
 
 /* wireless extensions */
 extern const struct iw_handler_def ieee80211_iw_handler_def;
 
-/* STA/IBSS code */
+/* STA code */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
-void ieee80211_scan_work(struct work_struct *work);
-void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
-			   struct ieee80211_rx_status *rx_status);
+ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
+					  struct sk_buff *skb,
+					  struct ieee80211_rx_status *rx_status);
+int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata);
 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
-void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
-			    struct ieee80211_if_sta *ifsta);
-struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
-					u8 *bssid, u8 *addr, u32 supp_rates);
+void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata);
 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
-u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
-u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
-			    struct ieee802_11_elems *elems,
-			    enum ieee80211_band band);
-void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len);
 void ieee80211_send_pspoll(struct ieee80211_local *local,
 			   struct ieee80211_sub_if_data *sdata);
 
+/* IBSS code */
+int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata);
+int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
+int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
+int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
+void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
+void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
+ieee80211_rx_result
+ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
+		       struct ieee80211_rx_status *rx_status);
+struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
+					u8 *bssid, u8 *addr, u32 supp_rates);
+
 /* scan/BSS handling */
+void ieee80211_scan_work(struct work_struct *work);
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_scan_request *req);
 int ieee80211_scan_results(struct ieee80211_local *local,
@@ -1042,6 +1085,25 @@ void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
+void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason);
+void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason);
+
+void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
+			 u16 transaction, u16 auth_alg,
+			 u8 *extra, size_t extra_len,
+			 const u8 *bssid, int encrypt);
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+			      u8 *ssid, size_t ssid_len,
+			      u8 *ie, size_t ie_len);
+
+void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
+				  const size_t supp_rates_len,
+				  const u8 *supp_rates);
+u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
+			    struct ieee802_11_elems *elems,
+			    enum ieee80211_band band);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index df94b936526..2acc416e77e 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -236,7 +236,10 @@ static int ieee80211_open(struct net_device *dev)
 		break;
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_ADHOC:
-		sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+		if (sdata->vif.type == NL80211_IFTYPE_STATION)
+			sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+		else
+			sdata->u.ibss.flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
 		/* fall through */
 	default:
 		conf.vif = &sdata->vif;
@@ -321,11 +324,10 @@ static int ieee80211_open(struct net_device *dev)
 	 * yet be effective. Trigger execution of ieee80211_sta_work
 	 * to fix this.
 	 */
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-		queue_work(local->hw.workqueue, &ifsta->work);
-	}
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		queue_work(local->hw.workqueue, &sdata->u.mgd.work);
+	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		queue_work(local->hw.workqueue, &sdata->u.ibss.work);
 
 	netif_tx_start_all_queues(dev);
 
@@ -452,15 +454,13 @@ static int ieee80211_stop(struct net_device *dev)
 		netif_addr_unlock_bh(local->mdev);
 		break;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
 		/* Announce that we are leaving the network. */
-		if (sdata->u.sta.state != IEEE80211_STA_MLME_DISABLED)
+		if (sdata->u.mgd.state != IEEE80211_STA_MLME_DISABLED)
 			ieee80211_sta_deauthenticate(sdata,
 						WLAN_REASON_DEAUTH_LEAVING);
-
-		memset(sdata->u.sta.bssid, 0, ETH_ALEN);
-		del_timer_sync(&sdata->u.sta.chswitch_timer);
-		del_timer_sync(&sdata->u.sta.timer);
+		memset(sdata->u.mgd.bssid, 0, ETH_ALEN);
+		del_timer_sync(&sdata->u.mgd.chswitch_timer);
+		del_timer_sync(&sdata->u.mgd.timer);
 		/*
 		 * If the timer fired while we waited for it, it will have
 		 * requeued the work. Now the work will be running again
@@ -468,8 +468,8 @@ static int ieee80211_stop(struct net_device *dev)
 		 * whether the interface is running, which, at this point,
 		 * it no longer is.
 		 */
-		cancel_work_sync(&sdata->u.sta.work);
-		cancel_work_sync(&sdata->u.sta.chswitch_work);
+		cancel_work_sync(&sdata->u.mgd.work);
+		cancel_work_sync(&sdata->u.mgd.chswitch_work);
 		/*
 		 * When we get here, the interface is marked down.
 		 * Call synchronize_rcu() to wait for the RX path
@@ -477,13 +477,22 @@ static int ieee80211_stop(struct net_device *dev)
 		 * frames at this very time on another CPU.
 		 */
 		synchronize_rcu();
-		skb_queue_purge(&sdata->u.sta.skb_queue);
+		skb_queue_purge(&sdata->u.mgd.skb_queue);
 
-		sdata->u.sta.flags &= ~(IEEE80211_STA_PRIVACY_INVOKED |
+		sdata->u.mgd.flags &= ~(IEEE80211_STA_PRIVACY_INVOKED |
 					IEEE80211_STA_TKIP_WEP_USED);
-		kfree(sdata->u.sta.extra_ie);
-		sdata->u.sta.extra_ie = NULL;
-		sdata->u.sta.extra_ie_len = 0;
+		kfree(sdata->u.mgd.extra_ie);
+		sdata->u.mgd.extra_ie = NULL;
+		sdata->u.mgd.extra_ie_len = 0;
+		/* fall through */
+	case NL80211_IFTYPE_ADHOC:
+		if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+			memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
+			del_timer_sync(&sdata->u.ibss.timer);
+			cancel_work_sync(&sdata->u.ibss.work);
+			synchronize_rcu();
+			skb_queue_purge(&sdata->u.ibss.skb_queue);
+		}
 		/* fall through */
 	case NL80211_IFTYPE_MESH_POINT:
 		if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -629,19 +638,20 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 		if (ieee80211_vif_is_mesh(&sdata->vif))
 			mesh_rmc_free(sdata);
 		break;
-	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_ADHOC:
-		kfree(sdata->u.sta.extra_ie);
-		kfree(sdata->u.sta.assocreq_ies);
-		kfree(sdata->u.sta.assocresp_ies);
-		kfree_skb(sdata->u.sta.probe_resp);
-		kfree(sdata->u.sta.ie_probereq);
-		kfree(sdata->u.sta.ie_proberesp);
-		kfree(sdata->u.sta.ie_auth);
-		kfree(sdata->u.sta.ie_assocreq);
-		kfree(sdata->u.sta.ie_reassocreq);
-		kfree(sdata->u.sta.ie_deauth);
-		kfree(sdata->u.sta.ie_disassoc);
+		kfree_skb(sdata->u.ibss.probe_resp);
+		break;
+	case NL80211_IFTYPE_STATION:
+		kfree(sdata->u.mgd.extra_ie);
+		kfree(sdata->u.mgd.assocreq_ies);
+		kfree(sdata->u.mgd.assocresp_ies);
+		kfree(sdata->u.mgd.ie_probereq);
+		kfree(sdata->u.mgd.ie_proberesp);
+		kfree(sdata->u.mgd.ie_auth);
+		kfree(sdata->u.mgd.ie_assocreq);
+		kfree(sdata->u.mgd.ie_reassocreq);
+		kfree(sdata->u.mgd.ie_deauth);
+		kfree(sdata->u.mgd.ie_disassoc);
 		break;
 	case NL80211_IFTYPE_WDS:
 	case NL80211_IFTYPE_AP_VLAN:
@@ -708,9 +718,11 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		INIT_LIST_HEAD(&sdata->u.ap.vlans);
 		break;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
 		ieee80211_sta_setup_sdata(sdata);
 		break;
+	case NL80211_IFTYPE_ADHOC:
+		ieee80211_ibss_setup_sdata(sdata);
+		break;
 	case NL80211_IFTYPE_MESH_POINT:
 		if (ieee80211_vif_is_mesh(&sdata->vif))
 			ieee80211_mesh_init_sdata(sdata);
@@ -798,6 +810,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 	memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
 	SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
+	ndev->features |= NETIF_F_NETNS_LOCAL;
 
 	/* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */
 	sdata = netdev_priv(ndev);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 19b480de4bb..687acf23054 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -400,7 +400,7 @@ void ieee80211_key_link(struct ieee80211_key *key,
 			 */
 
 			/* same here, the AP could be using QoS */
-			ap = sta_info_get(key->local, key->sdata->u.sta.bssid);
+			ap = sta_info_get(key->local, key->sdata->u.mgd.bssid);
 			if (ap) {
 				if (test_sta_flags(ap, WLAN_STA_WME))
 					key->conf.flags |=
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 5667f4e8067..f38db4d37e5 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -169,9 +169,10 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 
 	memset(&conf, 0, sizeof(conf));
 
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		conf.bssid = sdata->u.sta.bssid;
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		conf.bssid = sdata->u.mgd.bssid;
+	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		conf.bssid = sdata->u.ibss.bssid;
 	else if (sdata->vif.type == NL80211_IFTYPE_AP)
 		conf.bssid = sdata->dev->dev_addr;
 	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -210,7 +211,7 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 					!!rcu_dereference(sdata->u.ap.beacon);
 				break;
 			case NL80211_IFTYPE_ADHOC:
-				conf.enable_beacon = !!sdata->u.sta.probe_resp;
+				conf.enable_beacon = !!sdata->u.ibss.probe_resp;
 				break;
 			case NL80211_IFTYPE_MESH_POINT:
 				conf.enable_beacon = true;
@@ -705,7 +706,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
 	struct ieee80211_local *local;
-	int priv_size;
+	int priv_size, i;
 	struct wiphy *wiphy;
 
 	/* Ensure 32-byte alignment of our private data and hw private data.
@@ -779,6 +780,11 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	setup_timer(&local->dynamic_ps_timer,
 		    ieee80211_dynamic_ps_timer, (unsigned long) local);
 
+	for (i = 0; i < IEEE80211_MAX_AMPDU_QUEUES; i++)
+		local->ampdu_ac_queue[i] = -1;
+	/* using an s8 won't work with more than that */
+	BUILD_BUG_ON(IEEE80211_MAX_AMPDU_QUEUES > 127);
+
 	sta_info_init(local);
 
 	tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
@@ -855,6 +861,11 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	/* mac80211 always supports monitor */
 	local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
 
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+		local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+	else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
+		local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
+
 	result = wiphy_register(local->hw.wiphy);
 	if (result < 0)
 		goto fail_wiphy_register;
@@ -872,7 +883,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	mdev = alloc_netdev_mq(sizeof(struct ieee80211_master_priv),
 			       "wmaster%d", ieee80211_master_setup,
-			       ieee80211_num_queues(hw));
+			       hw->queues);
 	if (!mdev)
 		goto fail_mdev_alloc;
 
@@ -916,6 +927,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
 	SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
+	local->mdev->features |= NETIF_F_NETNS_LOCAL;
 
 	result = register_netdevice(local->mdev);
 	if (result < 0)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index fbb766afe59..7f238589b6f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -15,11 +15,8 @@
 #include <linux/if_ether.h>
 #include <linux/skbuff.h>
 #include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/random.h>
 #include <linux/etherdevice.h>
 #include <linux/rtnetlink.h>
-#include <net/iw_handler.h>
 #include <net/mac80211.h>
 #include <asm/unaligned.h>
 
@@ -35,15 +32,6 @@
 #define IEEE80211_MONITORING_INTERVAL (2 * HZ)
 #define IEEE80211_PROBE_INTERVAL (60 * HZ)
 #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
-#define IEEE80211_SCAN_INTERVAL (2 * HZ)
-#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
-#define IEEE80211_IBSS_JOIN_TIMEOUT (7 * HZ)
-
-#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
-#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
-
-#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
-
 
 /* utils */
 static int ecw2cw(int ecw)
@@ -92,43 +80,6 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 	return count;
 }
 
-/* also used by mesh code */
-u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
-			    struct ieee802_11_elems *elems,
-			    enum ieee80211_band band)
-{
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_rate *bitrates;
-	size_t num_rates;
-	u32 supp_rates;
-	int i, j;
-	sband = local->hw.wiphy->bands[band];
-
-	if (!sband) {
-		WARN_ON(1);
-		sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-	}
-
-	bitrates = sband->bitrates;
-	num_rates = sband->n_bitrates;
-	supp_rates = 0;
-	for (i = 0; i < elems->supp_rates_len +
-		     elems->ext_supp_rates_len; i++) {
-		u8 rate = 0;
-		int own_rate;
-		if (i < elems->supp_rates_len)
-			rate = elems->supp_rates[i];
-		else if (elems->ext_supp_rates)
-			rate = elems->ext_supp_rates
-				[i - elems->supp_rates_len];
-		own_rate = 5 * (rate & 0x7f);
-		for (j = 0; j < num_rates; j++)
-			if (bitrates[j].bitrate == own_rate)
-				supp_rates |= BIT(j);
-	}
-	return supp_rates;
-}
-
 /* frame sending functions */
 
 static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
@@ -137,113 +88,9 @@ static void add_extra_ies(struct sk_buff *skb, u8 *ies, size_t ies_len)
 		memcpy(skb_put(skb, ies_len), ies, ies_len);
 }
 
-/* also used by scanning code */
-void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *supp_rates, *esupp_rates = NULL;
-	int i;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
-			    sdata->u.sta.ie_probereq_len);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
-		       "request\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
-	memset(mgmt, 0, 24);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_PROBE_REQ);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	if (dst) {
-		memcpy(mgmt->da, dst, ETH_ALEN);
-		memcpy(mgmt->bssid, dst, ETH_ALEN);
-	} else {
-		memset(mgmt->da, 0xff, ETH_ALEN);
-		memset(mgmt->bssid, 0xff, ETH_ALEN);
-	}
-	pos = skb_put(skb, 2 + ssid_len);
-	*pos++ = WLAN_EID_SSID;
-	*pos++ = ssid_len;
-	memcpy(pos, ssid, ssid_len);
-
-	supp_rates = skb_put(skb, 2);
-	supp_rates[0] = WLAN_EID_SUPP_RATES;
-	supp_rates[1] = 0;
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	for (i = 0; i < sband->n_bitrates; i++) {
-		struct ieee80211_rate *rate = &sband->bitrates[i];
-		if (esupp_rates) {
-			pos = skb_put(skb, 1);
-			esupp_rates[1]++;
-		} else if (supp_rates[1] == 8) {
-			esupp_rates = skb_put(skb, 3);
-			esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
-			esupp_rates[1] = 1;
-			pos = &esupp_rates[2];
-		} else {
-			pos = skb_put(skb, 1);
-			supp_rates[1]++;
-		}
-		*pos = rate->bitrate / 5;
-	}
-
-	add_extra_ies(skb, sdata->u.sta.ie_probereq,
-		      sdata->u.sta.ie_probereq_len);
-
-	ieee80211_tx_skb(sdata, skb, 0);
-}
-
-static void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
-				struct ieee80211_if_sta *ifsta,
-				int transaction, u8 *extra, size_t extra_len,
-				int encrypt)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 6 + extra_len +
-			    sdata->u.sta.ie_auth_len);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
-		       "frame\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
-	memset(mgmt, 0, 24 + 6);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_AUTH);
-	if (encrypt)
-		mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
-	mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
-	ifsta->auth_transaction = transaction + 1;
-	mgmt->u.auth.status_code = cpu_to_le16(0);
-	if (extra)
-		memcpy(skb_put(skb, extra_len), extra, extra_len);
-	add_extra_ies(skb, sdata->u.sta.ie_auth, sdata->u.sta.ie_auth_len);
-
-	ieee80211_tx_skb(sdata, skb, encrypt);
-}
-
-static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
-				 struct ieee80211_if_sta *ifsta)
+static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
@@ -256,17 +103,17 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	u32 rates = 0;
 	size_t e_ies_len;
 
-	if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
-		e_ies = sdata->u.sta.ie_reassocreq;
-		e_ies_len = sdata->u.sta.ie_reassocreq_len;
+	if (ifmgd->flags & IEEE80211_IBSS_PREV_BSSID_SET) {
+		e_ies = sdata->u.mgd.ie_reassocreq;
+		e_ies_len = sdata->u.mgd.ie_reassocreq_len;
 	} else {
-		e_ies = sdata->u.sta.ie_assocreq;
-		e_ies_len = sdata->u.sta.ie_assocreq_len;
+		e_ies = sdata->u.mgd.ie_assocreq;
+		e_ies_len = sdata->u.mgd.ie_assocreq_len;
 	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
-			    ifsta->ssid_len + e_ies_len);
+			    sizeof(*mgmt) + 200 + ifmgd->extra_ie_len +
+			    ifmgd->ssid_len + e_ies_len);
 	if (!skb) {
 		printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
 		       "frame\n", sdata->dev->name);
@@ -276,7 +123,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
-	capab = ifsta->capab;
+	capab = ifmgd->capab;
 
 	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
 		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
@@ -285,9 +132,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 			capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
 	}
 
-	bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+	bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
 				   local->hw.conf.channel->center_freq,
-				   ifsta->ssid, ifsta->ssid_len);
+				   ifmgd->ssid, ifmgd->ssid_len);
 	if (bss) {
 		if (bss->cbss.capability & WLAN_CAPABILITY_PRIVACY)
 			capab |= WLAN_CAPABILITY_PRIVACY;
@@ -312,18 +159,18 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
-	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN);
 
-	if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
+	if (ifmgd->flags & IEEE80211_STA_PREV_BSSID_SET) {
 		skb_put(skb, 10);
 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 						  IEEE80211_STYPE_REASSOC_REQ);
 		mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
 		mgmt->u.reassoc_req.listen_interval =
 				cpu_to_le16(local->hw.conf.listen_interval);
-		memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
+		memcpy(mgmt->u.reassoc_req.current_ap, ifmgd->prev_bssid,
 		       ETH_ALEN);
 	} else {
 		skb_put(skb, 4);
@@ -335,10 +182,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	/* SSID */
-	ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
+	ies = pos = skb_put(skb, 2 + ifmgd->ssid_len);
 	*pos++ = WLAN_EID_SSID;
-	*pos++ = ifsta->ssid_len;
-	memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+	*pos++ = ifmgd->ssid_len;
+	memcpy(pos, ifmgd->ssid, ifmgd->ssid_len);
 
 	/* add all rates which were marked to be used above */
 	supp_rates_len = rates_len;
@@ -393,12 +240,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	if (ifsta->extra_ie) {
-		pos = skb_put(skb, ifsta->extra_ie_len);
-		memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
+	if (ifmgd->extra_ie) {
+		pos = skb_put(skb, ifmgd->extra_ie_len);
+		memcpy(pos, ifmgd->extra_ie, ifmgd->extra_ie_len);
 	}
 
-	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+	if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED)) {
 		pos = skb_put(skb, 9);
 		*pos++ = WLAN_EID_VENDOR_SPECIFIC;
 		*pos++ = 7; /* len */
@@ -418,11 +265,11 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	 * mode (11a/b/g) if any one of these ciphers is
 	 * configured as pairwise.
 	 */
-	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
+	if (wmm && (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&
 	    sband->ht_cap.ht_supported &&
 	    (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) &&
 	    ht_ie[1] >= sizeof(struct ieee80211_ht_info) &&
-	    (!(ifsta->flags & IEEE80211_STA_TKIP_WEP_USED))) {
+	    (!(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))) {
 		struct ieee80211_ht_info *ht_info =
 			(struct ieee80211_ht_info *)(ht_ie + 2);
 		u16 cap = sband->ht_cap.cap;
@@ -459,11 +306,11 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 
 	add_extra_ies(skb, e_ies, e_ies_len);
 
-	kfree(ifsta->assocreq_ies);
-	ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
-	ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
-	if (ifsta->assocreq_ies)
-		memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
+	kfree(ifmgd->assocreq_ies);
+	ifmgd->assocreq_ies_len = (skb->data + skb->len) - ies;
+	ifmgd->assocreq_ies = kmalloc(ifmgd->assocreq_ies_len, GFP_KERNEL);
+	if (ifmgd->assocreq_ies)
+		memcpy(ifmgd->assocreq_ies, ies, ifmgd->assocreq_ies_len);
 
 	ieee80211_tx_skb(sdata, skb, 0);
 }
@@ -473,18 +320,18 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 					   u16 stype, u16 reason)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u8 *ies;
 	size_t ies_len;
 
 	if (stype == IEEE80211_STYPE_DEAUTH) {
-		ies = sdata->u.sta.ie_deauth;
-		ies_len = sdata->u.sta.ie_deauth_len;
+		ies = sdata->u.mgd.ie_deauth;
+		ies_len = sdata->u.mgd.ie_deauth_len;
 	} else {
-		ies = sdata->u.sta.ie_disassoc;
-		ies_len = sdata->u.sta.ie_disassoc_len;
+		ies = sdata->u.mgd.ie_disassoc;
+		ies_len = sdata->u.mgd.ie_disassoc_len;
 	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) +
@@ -498,9 +345,9 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
 	memset(mgmt, 0, 24);
-	memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->da, ifmgd->bssid, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+	memcpy(mgmt->bssid, ifmgd->bssid, ETH_ALEN);
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
 	skb_put(skb, 2);
 	/* u.deauth.reason_code == u.disassoc.reason_code */
@@ -508,13 +355,13 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	add_extra_ies(skb, ies, ies_len);
 
-	ieee80211_tx_skb(sdata, skb, ifsta->flags & IEEE80211_STA_MFP_ENABLED);
+	ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
 void ieee80211_send_pspoll(struct ieee80211_local *local,
 			   struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_pspoll *pspoll;
 	struct sk_buff *skb;
 	u16 fc;
@@ -531,43 +378,20 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 	memset(pspoll, 0, sizeof(*pspoll));
 	fc = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL | IEEE80211_FCTL_PM;
 	pspoll->frame_control = cpu_to_le16(fc);
-	pspoll->aid = cpu_to_le16(ifsta->aid);
+	pspoll->aid = cpu_to_le16(ifmgd->aid);
 
 	/* aid in PS-Poll has its two MSBs each set to 1 */
 	pspoll->aid |= cpu_to_le16(1 << 15 | 1 << 14);
 
-	memcpy(pspoll->bssid, ifsta->bssid, ETH_ALEN);
+	memcpy(pspoll->bssid, ifmgd->bssid, ETH_ALEN);
 	memcpy(pspoll->ta, sdata->dev->dev_addr, ETH_ALEN);
 
 	ieee80211_tx_skb(sdata, skb, 0);
-
-	return;
 }
 
 /* MLME */
-static void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
-					 const size_t supp_rates_len,
-					 const u8 *supp_rates)
-{
-	struct ieee80211_local *local = sdata->local;
-	int i, have_higher_than_11mbit = 0;
-
-	/* cf. IEEE 802.11 9.2.12 */
-	for (i = 0; i < supp_rates_len; i++)
-		if ((supp_rates[i] & 0x7f) * 5 > 110)
-			have_higher_than_11mbit = 1;
-
-	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
-	    have_higher_than_11mbit)
-		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
-	else
-		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
-
-	ieee80211_set_wmm_default(sdata);
-}
-
 static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
-				     struct ieee80211_if_sta *ifsta,
+				     struct ieee80211_if_managed *ifmgd,
 				     u8 *wmm_param, size_t wmm_param_len)
 {
 	struct ieee80211_tx_queue_params params;
@@ -575,7 +399,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 	int count;
 	u8 *pos;
 
-	if (!(ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+	if (!(ifmgd->flags & IEEE80211_STA_WMM_ENABLED))
 		return;
 
 	if (!wmm_param)
@@ -584,9 +408,9 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 	if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
 		return;
 	count = wmm_param[6] & 0x0f;
-	if (count == ifsta->wmm_last_param_set)
+	if (count == ifmgd->wmm_last_param_set)
 		return;
-	ifsta->wmm_last_param_set = count;
+	ifmgd->wmm_last_param_set = count;
 
 	pos = wmm_param + 8;
 	left = wmm_param_len - 8;
@@ -671,7 +495,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 #endif
 	u32 changed = 0;
 	bool use_protection;
@@ -694,7 +518,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 			printk(KERN_DEBUG "%s: CTS protection %s (BSSID=%pM)\n",
 			       sdata->dev->name,
 			       use_protection ? "enabled" : "disabled",
-			       ifsta->bssid);
+			       ifmgd->bssid);
 		}
 #endif
 		bss_conf->use_cts_prot = use_protection;
@@ -708,7 +532,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 			       " (BSSID=%pM)\n",
 			       sdata->dev->name,
 			       use_short_preamble ? "short" : "long",
-			       ifsta->bssid);
+			       ifmgd->bssid);
 		}
 #endif
 		bss_conf->use_short_preamble = use_short_preamble;
@@ -722,7 +546,7 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 			       " (BSSID=%pM)\n",
 			       sdata->dev->name,
 			       use_short_slot ? "short" : "long",
-			       ifsta->bssid);
+			       ifmgd->bssid);
 		}
 #endif
 		bss_conf->use_short_slot = use_short_slot;
@@ -732,57 +556,57 @@ static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 	return changed;
 }
 
-static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_if_sta *ifsta)
+static void ieee80211_sta_send_apinfo(struct ieee80211_sub_if_data *sdata)
 {
 	union iwreq_data wrqu;
+
 	memset(&wrqu, 0, sizeof(wrqu));
-	if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
-		memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
+	if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED)
+		memcpy(wrqu.ap_addr.sa_data, sdata->u.mgd.bssid, ETH_ALEN);
 	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
 }
 
-static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata,
-					 struct ieee80211_if_sta *ifsta)
+static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	char *buf;
 	size_t len;
 	int i;
 	union iwreq_data wrqu;
 
-	if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
+	if (!ifmgd->assocreq_ies && !ifmgd->assocresp_ies)
 		return;
 
-	buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
-				ifsta->assocresp_ies_len), GFP_KERNEL);
+	buf = kmalloc(50 + 2 * (ifmgd->assocreq_ies_len +
+				ifmgd->assocresp_ies_len), GFP_KERNEL);
 	if (!buf)
 		return;
 
 	len = sprintf(buf, "ASSOCINFO(");
-	if (ifsta->assocreq_ies) {
+	if (ifmgd->assocreq_ies) {
 		len += sprintf(buf + len, "ReqIEs=");
-		for (i = 0; i < ifsta->assocreq_ies_len; i++) {
+		for (i = 0; i < ifmgd->assocreq_ies_len; i++) {
 			len += sprintf(buf + len, "%02x",
-				       ifsta->assocreq_ies[i]);
+				       ifmgd->assocreq_ies[i]);
 		}
 	}
-	if (ifsta->assocresp_ies) {
-		if (ifsta->assocreq_ies)
+	if (ifmgd->assocresp_ies) {
+		if (ifmgd->assocreq_ies)
 			len += sprintf(buf + len, " ");
 		len += sprintf(buf + len, "RespIEs=");
-		for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+		for (i = 0; i < ifmgd->assocresp_ies_len; i++) {
 			len += sprintf(buf + len, "%02x",
-				       ifsta->assocresp_ies[i]);
+				       ifmgd->assocresp_ies[i]);
 		}
 	}
 	len += sprintf(buf + len, ")");
 
 	if (len > IW_CUSTOM_MAX) {
 		len = sprintf(buf, "ASSOCRESPIE=");
-		for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+		for (i = 0; i < ifmgd->assocresp_ies_len; i++) {
 			len += sprintf(buf + len, "%02x",
-				       ifsta->assocresp_ies[i]);
+				       ifmgd->assocresp_ies[i]);
 		}
 	}
 
@@ -797,20 +621,20 @@ static void ieee80211_sta_send_associnfo(struct ieee80211_sub_if_data *sdata,
 
 
 static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta,
 				     u32 bss_info_changed)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_conf *conf = &local_to_hw(local)->conf;
 
 	struct ieee80211_bss *bss;
 
 	bss_info_changed |= BSS_CHANGED_ASSOC;
-	ifsta->flags |= IEEE80211_STA_ASSOCIATED;
+	ifmgd->flags |= IEEE80211_STA_ASSOCIATED;
 
-	bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+	bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
 				   conf->channel->center_freq,
-				   ifsta->ssid, ifsta->ssid_len);
+				   ifmgd->ssid, ifmgd->ssid_len);
 	if (bss) {
 		/* set timing information */
 		sdata->vif.bss_conf.beacon_int = bss->cbss.beacon_interval;
@@ -823,11 +647,11 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		ieee80211_rx_bss_put(local, bss);
 	}
 
-	ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
-	memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
-	ieee80211_sta_send_associnfo(sdata, ifsta);
+	ifmgd->flags |= IEEE80211_STA_PREV_BSSID_SET;
+	memcpy(ifmgd->prev_bssid, sdata->u.mgd.bssid, ETH_ALEN);
+	ieee80211_sta_send_associnfo(sdata);
 
-	ifsta->last_probe = jiffies;
+	ifmgd->last_probe = jiffies;
 	ieee80211_led_assoc(local, 1);
 
 	sdata->vif.bss_conf.assoc = 1;
@@ -856,70 +680,74 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	netif_tx_start_all_queues(sdata->dev);
 	netif_carrier_on(sdata->dev);
 
-	ieee80211_sta_send_apinfo(sdata, ifsta);
+	ieee80211_sta_send_apinfo(sdata);
 }
 
-static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta)
+static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 {
-	ifsta->direct_probe_tries++;
-	if (ifsta->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	ifmgd->direct_probe_tries++;
+	if (ifmgd->direct_probe_tries > IEEE80211_AUTH_MAX_TRIES) {
 		printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n",
-		       sdata->dev->name, ifsta->bssid);
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata, ifsta);
+		       sdata->dev->name, ifmgd->bssid);
+		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_sta_send_apinfo(sdata);
 
 		/*
 		 * Most likely AP is not in the range so remove the
 		 * bss information associated to the AP
 		 */
-		ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
-				ifsta->ssid, ifsta->ssid_len);
+				ifmgd->ssid, ifmgd->ssid_len);
 		return;
 	}
 
 	printk(KERN_DEBUG "%s: direct probe to AP %pM try %d\n",
-			sdata->dev->name, ifsta->bssid,
-			ifsta->direct_probe_tries);
+			sdata->dev->name, ifmgd->bssid,
+			ifmgd->direct_probe_tries);
 
-	ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+	ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
 
-	set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifsta->request);
+	set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifmgd->request);
 
 	/* Direct probe is sent to broadcast address as some APs
 	 * will not answer to direct packet in unassociated state.
 	 */
 	ieee80211_send_probe_req(sdata, NULL,
-				 ifsta->ssid, ifsta->ssid_len);
+				 ifmgd->ssid, ifmgd->ssid_len, NULL, 0);
 
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
+	mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
 }
 
 
-static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta)
+static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
 {
-	ifsta->auth_tries++;
-	if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	ifmgd->auth_tries++;
+	if (ifmgd->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
 		printk(KERN_DEBUG "%s: authentication with AP %pM"
 		       " timed out\n",
-		       sdata->dev->name, ifsta->bssid);
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata, ifsta);
-		ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+		       sdata->dev->name, ifmgd->bssid);
+		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_sta_send_apinfo(sdata);
+		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
-				ifsta->ssid, ifsta->ssid_len);
+				ifmgd->ssid, ifmgd->ssid_len);
 		return;
 	}
 
-	ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+	ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
 	printk(KERN_DEBUG "%s: authenticate with AP %pM\n",
-	       sdata->dev->name, ifsta->bssid);
+	       sdata->dev->name, ifmgd->bssid);
 
-	ieee80211_send_auth(sdata, ifsta, 1, NULL, 0, 0);
+	ieee80211_send_auth(sdata, 1, ifmgd->auth_alg, NULL, 0,
+			    ifmgd->bssid, 0);
+	ifmgd->auth_transaction = 2;
 
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
+	mod_timer(&ifmgd->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
 }
 
 /*
@@ -927,27 +755,28 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata,
  * if self disconnected or a reason code from the AP.
  */
 static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta, bool deauth,
-				   bool self_disconnected, u16 reason)
+				   bool deauth, bool self_disconnected,
+				   u16 reason)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	u32 changed = 0, config_changed = 0;
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, ifsta->bssid);
+	sta = sta_info_get(local, ifmgd->bssid);
 	if (!sta) {
 		rcu_read_unlock();
 		return;
 	}
 
 	if (deauth) {
-		ifsta->direct_probe_tries = 0;
-		ifsta->auth_tries = 0;
+		ifmgd->direct_probe_tries = 0;
+		ifmgd->auth_tries = 0;
 	}
-	ifsta->assoc_scan_tries = 0;
-	ifsta->assoc_tries = 0;
+	ifmgd->assoc_scan_tries = 0;
+	ifmgd->assoc_tries = 0;
 
 	netif_tx_stop_all_queues(sdata->dev);
 	netif_carrier_off(sdata->dev);
@@ -963,20 +792,20 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 				IEEE80211_STYPE_DISASSOC, reason);
 	}
 
-	ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+	ifmgd->flags &= ~IEEE80211_STA_ASSOCIATED;
 	changed |= ieee80211_reset_erp_info(sdata);
 
 	ieee80211_led_assoc(local, 0);
 	changed |= BSS_CHANGED_ASSOC;
 	sdata->vif.bss_conf.assoc = false;
 
-	ieee80211_sta_send_apinfo(sdata, ifsta);
+	ieee80211_sta_send_apinfo(sdata);
 
 	if (self_disconnected || reason == WLAN_REASON_DISASSOC_STA_HAS_LEFT) {
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
-				ifsta->ssid, ifsta->ssid_len);
+				ifmgd->ssid, ifmgd->ssid_len);
 	}
 
 	rcu_read_unlock();
@@ -999,7 +828,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, ifsta->bssid);
+	sta = sta_info_get(local, ifmgd->bssid);
 	if (!sta) {
 		rcu_read_unlock();
 		return;
@@ -1020,27 +849,27 @@ static int ieee80211_sta_wep_configured(struct ieee80211_sub_if_data *sdata)
 	return 1;
 }
 
-static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata,
-				      struct ieee80211_if_sta *ifsta)
+static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_bss *bss;
 	int bss_privacy;
 	int wep_privacy;
 	int privacy_invoked;
 
-	if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
+	if (!ifmgd || (ifmgd->flags & IEEE80211_STA_MIXED_CELL))
 		return 0;
 
-	bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+	bss = ieee80211_rx_bss_get(local, ifmgd->bssid,
 				   local->hw.conf.channel->center_freq,
-				   ifsta->ssid, ifsta->ssid_len);
+				   ifmgd->ssid, ifmgd->ssid_len);
 	if (!bss)
 		return 0;
 
 	bss_privacy = !!(bss->cbss.capability & WLAN_CAPABILITY_PRIVACY);
 	wep_privacy = !!ieee80211_sta_wep_configured(sdata);
-	privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
+	privacy_invoked = !!(ifmgd->flags & IEEE80211_STA_PRIVACY_INVOKED);
 
 	ieee80211_rx_bss_put(local, bss);
 
@@ -1050,41 +879,42 @@ static int ieee80211_privacy_mismatch(struct ieee80211_sub_if_data *sdata,
 	return 1;
 }
 
-static void ieee80211_associate(struct ieee80211_sub_if_data *sdata,
-				struct ieee80211_if_sta *ifsta)
+static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
 {
-	ifsta->assoc_tries++;
-	if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	ifmgd->assoc_tries++;
+	if (ifmgd->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
 		printk(KERN_DEBUG "%s: association with AP %pM"
 		       " timed out\n",
-		       sdata->dev->name, ifsta->bssid);
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata, ifsta);
-		ieee80211_rx_bss_remove(sdata, ifsta->bssid,
+		       sdata->dev->name, ifmgd->bssid);
+		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_sta_send_apinfo(sdata);
+		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
-				ifsta->ssid, ifsta->ssid_len);
+				ifmgd->ssid, ifmgd->ssid_len);
 		return;
 	}
 
-	ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
+	ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
 	printk(KERN_DEBUG "%s: associate with AP %pM\n",
-	       sdata->dev->name, ifsta->bssid);
-	if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+	       sdata->dev->name, ifmgd->bssid);
+	if (ieee80211_privacy_mismatch(sdata)) {
 		printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
 		       "mixed-cell disabled - abort association\n", sdata->dev->name);
-		ifsta->state = IEEE80211_STA_MLME_DISABLED;
+		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
 		return;
 	}
 
-	ieee80211_send_assoc(sdata, ifsta);
+	ieee80211_send_assoc(sdata);
 
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+	mod_timer(&ifmgd->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
 }
 
 
-static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
-				 struct ieee80211_if_sta *ifsta)
+static void ieee80211_associated(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	int disassoc;
@@ -1094,38 +924,40 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
 	 * for better APs. */
 	/* TODO: remove expired BSSes */
 
-	ifsta->state = IEEE80211_STA_MLME_ASSOCIATED;
+	ifmgd->state = IEEE80211_STA_MLME_ASSOCIATED;
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, ifsta->bssid);
+	sta = sta_info_get(local, ifmgd->bssid);
 	if (!sta) {
 		printk(KERN_DEBUG "%s: No STA entry for own AP %pM\n",
-		       sdata->dev->name, ifsta->bssid);
+		       sdata->dev->name, ifmgd->bssid);
 		disassoc = 1;
 	} else {
 		disassoc = 0;
 		if (time_after(jiffies,
 			       sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
-			if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
+			if (ifmgd->flags & IEEE80211_STA_PROBEREQ_POLL) {
 				printk(KERN_DEBUG "%s: No ProbeResp from "
 				       "current AP %pM - assume out of "
 				       "range\n",
-				       sdata->dev->name, ifsta->bssid);
+				       sdata->dev->name, ifmgd->bssid);
 				disassoc = 1;
 			} else
-				ieee80211_send_probe_req(sdata, ifsta->bssid,
-							 ifsta->ssid,
-							 ifsta->ssid_len);
-			ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
+				ieee80211_send_probe_req(sdata, ifmgd->bssid,
+							 ifmgd->ssid,
+							 ifmgd->ssid_len,
+							 NULL, 0);
+			ifmgd->flags ^= IEEE80211_STA_PROBEREQ_POLL;
 		} else {
-			ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
-			if (time_after(jiffies, ifsta->last_probe +
+			ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+			if (time_after(jiffies, ifmgd->last_probe +
 				       IEEE80211_PROBE_INTERVAL)) {
-				ifsta->last_probe = jiffies;
-				ieee80211_send_probe_req(sdata, ifsta->bssid,
-							 ifsta->ssid,
-							 ifsta->ssid_len);
+				ifmgd->last_probe = jiffies;
+				ieee80211_send_probe_req(sdata, ifmgd->bssid,
+							 ifmgd->ssid,
+							 ifmgd->ssid_len,
+							 NULL, 0);
 			}
 		}
 	}
@@ -1133,25 +965,25 @@ static void ieee80211_associated(struct ieee80211_sub_if_data *sdata,
 	rcu_read_unlock();
 
 	if (disassoc)
-		ieee80211_set_disassoc(sdata, ifsta, true, true,
+		ieee80211_set_disassoc(sdata, true, true,
 					WLAN_REASON_PREV_AUTH_NOT_VALID);
 	else
-		mod_timer(&ifsta->timer, jiffies +
+		mod_timer(&ifmgd->timer, jiffies +
 				      IEEE80211_MONITORING_INTERVAL);
 }
 
 
-static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
+static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
 	printk(KERN_DEBUG "%s: authenticated\n", sdata->dev->name);
-	ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
-	ieee80211_associate(sdata, ifsta);
+	ifmgd->flags |= IEEE80211_STA_AUTHENTICATED;
+	ieee80211_associate(sdata);
 }
 
 
 static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta,
 				     struct ieee80211_mgmt *mgmt,
 				     size_t len)
 {
@@ -1162,59 +994,37 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
 	ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
 	if (!elems.challenge)
 		return;
-	ieee80211_send_auth(sdata, ifsta, 3, elems.challenge - 2,
-			    elems.challenge_len + 2, 1);
-}
-
-static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_if_sta *ifsta,
-					struct ieee80211_mgmt *mgmt,
-					size_t len)
-{
-	u16 auth_alg, auth_transaction, status_code;
-
-	if (len < 24 + 6)
-		return;
-
-	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
-	auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
-	status_code = le16_to_cpu(mgmt->u.auth.status_code);
-
-	/*
-	 * IEEE 802.11 standard does not require authentication in IBSS
-	 * networks and most implementations do not seem to use it.
-	 * However, try to reply to authentication attempts if someone
-	 * has actually implemented this.
-	 */
-	if (auth_alg == WLAN_AUTH_OPEN && auth_transaction == 1)
-		ieee80211_send_auth(sdata, ifsta, 2, NULL, 0, 0);
+	ieee80211_send_auth(sdata, 3, sdata->u.mgd.auth_alg,
+			    elems.challenge - 2, elems.challenge_len + 2,
+			    sdata->u.mgd.bssid, 1);
+	sdata->u.mgd.auth_transaction = 4;
 }
 
 static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta,
 				   struct ieee80211_mgmt *mgmt,
 				   size_t len)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u16 auth_alg, auth_transaction, status_code;
 
-	if (ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE)
+	if (ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE)
 		return;
 
 	if (len < 24 + 6)
 		return;
 
-	if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0)
+	if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0)
 		return;
 
-	if (memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
+	if (memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
 		return;
 
 	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
 	auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
 	status_code = le16_to_cpu(mgmt->u.auth.status_code);
 
-	if (auth_alg != ifsta->auth_alg ||
-	    auth_transaction != ifsta->auth_transaction)
+	if (auth_alg != ifmgd->auth_alg ||
+	    auth_transaction != ifmgd->auth_transaction)
 		return;
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
@@ -1223,15 +1033,15 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 			const int num_algs = ARRAY_SIZE(algs);
 			int i, pos;
 			algs[0] = algs[1] = algs[2] = 0xff;
-			if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+			if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN)
 				algs[0] = WLAN_AUTH_OPEN;
-			if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+			if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
 				algs[1] = WLAN_AUTH_SHARED_KEY;
-			if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+			if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
 				algs[2] = WLAN_AUTH_LEAP;
-			if (ifsta->auth_alg == WLAN_AUTH_OPEN)
+			if (ifmgd->auth_alg == WLAN_AUTH_OPEN)
 				pos = 0;
-			else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY)
+			else if (ifmgd->auth_alg == WLAN_AUTH_SHARED_KEY)
 				pos = 1;
 			else
 				pos = 2;
@@ -1239,101 +1049,101 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 				pos++;
 				if (pos >= num_algs)
 					pos = 0;
-				if (algs[pos] == ifsta->auth_alg ||
+				if (algs[pos] == ifmgd->auth_alg ||
 				    algs[pos] == 0xff)
 					continue;
 				if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
 				    !ieee80211_sta_wep_configured(sdata))
 					continue;
-				ifsta->auth_alg = algs[pos];
+				ifmgd->auth_alg = algs[pos];
 				break;
 			}
 		}
 		return;
 	}
 
-	switch (ifsta->auth_alg) {
+	switch (ifmgd->auth_alg) {
 	case WLAN_AUTH_OPEN:
 	case WLAN_AUTH_LEAP:
-		ieee80211_auth_completed(sdata, ifsta);
+		ieee80211_auth_completed(sdata);
 		break;
 	case WLAN_AUTH_SHARED_KEY:
-		if (ifsta->auth_transaction == 4)
-			ieee80211_auth_completed(sdata, ifsta);
+		if (ifmgd->auth_transaction == 4)
+			ieee80211_auth_completed(sdata);
 		else
-			ieee80211_auth_challenge(sdata, ifsta, mgmt, len);
+			ieee80211_auth_challenge(sdata, mgmt, len);
 		break;
 	}
 }
 
 
 static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta,
 				     struct ieee80211_mgmt *mgmt,
 				     size_t len)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u16 reason_code;
 
 	if (len < 24 + 2)
 		return;
 
-	if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN))
+	if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN))
 		return;
 
 	reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
 
-	if (ifsta->flags & IEEE80211_STA_AUTHENTICATED)
+	if (ifmgd->flags & IEEE80211_STA_AUTHENTICATED)
 		printk(KERN_DEBUG "%s: deauthenticated (Reason: %u)\n",
 				sdata->dev->name, reason_code);
 
-	if (ifsta->state == IEEE80211_STA_MLME_AUTHENTICATE ||
-	    ifsta->state == IEEE80211_STA_MLME_ASSOCIATE ||
-	    ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) {
-		ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
-		mod_timer(&ifsta->timer, jiffies +
+	if (ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
+	    ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE ||
+	    ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
+		ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+		mod_timer(&ifmgd->timer, jiffies +
 				      IEEE80211_RETRY_AUTH_INTERVAL);
 	}
 
-	ieee80211_set_disassoc(sdata, ifsta, true, false, 0);
-	ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
+	ieee80211_set_disassoc(sdata, true, false, 0);
+	ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
 }
 
 
 static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
-				       struct ieee80211_if_sta *ifsta,
 				       struct ieee80211_mgmt *mgmt,
 				       size_t len)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u16 reason_code;
 
 	if (len < 24 + 2)
 		return;
 
-	if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN))
+	if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN))
 		return;
 
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
-	if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
+	if (ifmgd->flags & IEEE80211_STA_ASSOCIATED)
 		printk(KERN_DEBUG "%s: disassociated (Reason: %u)\n",
 				sdata->dev->name, reason_code);
 
-	if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED) {
-		ifsta->state = IEEE80211_STA_MLME_ASSOCIATE;
-		mod_timer(&ifsta->timer, jiffies +
+	if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED) {
+		ifmgd->state = IEEE80211_STA_MLME_ASSOCIATE;
+		mod_timer(&ifmgd->timer, jiffies +
 				      IEEE80211_RETRY_AUTH_INTERVAL);
 	}
 
-	ieee80211_set_disassoc(sdata, ifsta, false, false, reason_code);
+	ieee80211_set_disassoc(sdata, false, false, reason_code);
 }
 
 
 static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
-					 struct ieee80211_if_sta *ifsta,
 					 struct ieee80211_mgmt *mgmt,
 					 size_t len,
 					 int reassoc)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	struct sta_info *sta;
@@ -1350,13 +1160,13 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	/* AssocResp and ReassocResp have identical structure, so process both
 	 * of them in this function. */
 
-	if (ifsta->state != IEEE80211_STA_MLME_ASSOCIATE)
+	if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE)
 		return;
 
 	if (len < 24 + 6)
 		return;
 
-	if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0)
+	if (memcmp(ifmgd->bssid, mgmt->sa, ETH_ALEN) != 0)
 		return;
 
 	capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
@@ -1381,7 +1191,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		       "comeback duration %u TU (%u ms)\n",
 		       sdata->dev->name, tu, ms);
 		if (ms > IEEE80211_ASSOC_TIMEOUT)
-			mod_timer(&ifsta->timer,
+			mod_timer(&ifmgd->timer,
 				  jiffies + msecs_to_jiffies(ms));
 		return;
 	}
@@ -1392,7 +1202,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		/* if this was a reassociation, ensure we try a "full"
 		 * association next time. This works around some broken APs
 		 * which do not correctly reject reassociation requests. */
-		ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+		ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
 		return;
 	}
 
@@ -1408,23 +1218,23 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	}
 
 	printk(KERN_DEBUG "%s: associated\n", sdata->dev->name);
-	ifsta->aid = aid;
-	ifsta->ap_capab = capab_info;
+	ifmgd->aid = aid;
+	ifmgd->ap_capab = capab_info;
 
-	kfree(ifsta->assocresp_ies);
-	ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt);
-	ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL);
-	if (ifsta->assocresp_ies)
-		memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
+	kfree(ifmgd->assocresp_ies);
+	ifmgd->assocresp_ies_len = len - (pos - (u8 *) mgmt);
+	ifmgd->assocresp_ies = kmalloc(ifmgd->assocresp_ies_len, GFP_KERNEL);
+	if (ifmgd->assocresp_ies)
+		memcpy(ifmgd->assocresp_ies, pos, ifmgd->assocresp_ies_len);
 
 	rcu_read_lock();
 
 	/* Add STA entry for the AP */
-	sta = sta_info_get(local, ifsta->bssid);
+	sta = sta_info_get(local, ifmgd->bssid);
 	if (!sta) {
 		newsta = true;
 
-		sta = sta_info_alloc(sdata, ifsta->bssid, GFP_ATOMIC);
+		sta = sta_info_alloc(sdata, ifmgd->bssid, GFP_ATOMIC);
 		if (!sta) {
 			printk(KERN_DEBUG "%s: failed to alloc STA entry for"
 			       " the AP\n", sdata->dev->name);
@@ -1505,7 +1315,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 
 	rate_control_rate_init(sta);
 
-	if (ifsta->flags & IEEE80211_STA_MFP_ENABLED)
+	if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
 		set_sta_flags(sta, WLAN_STA_MFP);
 
 	if (elems.wmm_param)
@@ -1524,11 +1334,12 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	rcu_read_unlock();
 
 	if (elems.wmm_param)
-		ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
+		ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
 					 elems.wmm_param_len);
 
 	if (elems.ht_info_elem && elems.wmm_param &&
-	    (ifsta->flags & IEEE80211_STA_WMM_ENABLED))
+	    (ifmgd->flags & IEEE80211_STA_WMM_ENABLED) &&
+	    !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED))
 		changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
 					       ap_ht_cap_flags);
 
@@ -1536,162 +1347,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	 * ieee80211_set_associated() will tell the driver */
 	bss_conf->aid = aid;
 	bss_conf->assoc_capability = capab_info;
-	ieee80211_set_associated(sdata, ifsta, changed);
-
-	ieee80211_associated(sdata, ifsta);
-}
-
+	ieee80211_set_associated(sdata, changed);
 
-static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta,
-				     const u8 *bssid, const int beacon_int,
-				     const int freq,
-				     const size_t supp_rates_len,
-				     const u8 *supp_rates,
-				     const u16 capability)
-{
-	struct ieee80211_local *local = sdata->local;
-	int res = 0, rates, i, j;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	u8 *pos;
-	struct ieee80211_supported_band *sband;
-	union iwreq_data wrqu;
-
-	if (local->ops->reset_tsf) {
-		/* Reset own TSF to allow time synchronization work. */
-		local->ops->reset_tsf(local_to_hw(local));
-	}
-
-	if ((ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) &&
-	   memcmp(ifsta->bssid, bssid, ETH_ALEN) == 0)
-		return res;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400 +
-			    sdata->u.sta.ie_proberesp_len);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
-		       "response\n", sdata->dev->name);
-		return -ENOMEM;
-	}
-
-	if (!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) {
-		/* Remove possible STA entries from other IBSS networks. */
-		sta_info_flush_delayed(sdata);
-	}
-
-	memcpy(ifsta->bssid, bssid, ETH_ALEN);
-	res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
-	if (res)
-		return res;
-
-	local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
-
-	sdata->drop_unencrypted = capability &
-		WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
-	res = ieee80211_set_freq(sdata, freq);
-
-	if (res)
-		return res;
-
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	/* Build IBSS probe response */
-
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	mgmt = (struct ieee80211_mgmt *)
-		skb_put(skb, 24 + sizeof(mgmt->u.beacon));
-	memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_PROBE_RESP);
-	memset(mgmt->da, 0xff, ETH_ALEN);
-	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-	mgmt->u.beacon.beacon_int =
-		cpu_to_le16(local->hw.conf.beacon_int);
-	mgmt->u.beacon.capab_info = cpu_to_le16(capability);
-
-	pos = skb_put(skb, 2 + ifsta->ssid_len);
-	*pos++ = WLAN_EID_SSID;
-	*pos++ = ifsta->ssid_len;
-	memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
-	rates = supp_rates_len;
-	if (rates > 8)
-		rates = 8;
-	pos = skb_put(skb, 2 + rates);
-	*pos++ = WLAN_EID_SUPP_RATES;
-	*pos++ = rates;
-	memcpy(pos, supp_rates, rates);
-
-	if (sband->band == IEEE80211_BAND_2GHZ) {
-		pos = skb_put(skb, 2 + 1);
-		*pos++ = WLAN_EID_DS_PARAMS;
-		*pos++ = 1;
-		*pos++ = ieee80211_frequency_to_channel(freq);
-	}
-
-	pos = skb_put(skb, 2 + 2);
-	*pos++ = WLAN_EID_IBSS_PARAMS;
-	*pos++ = 2;
-	/* FIX: set ATIM window based on scan results */
-	*pos++ = 0;
-	*pos++ = 0;
-
-	if (supp_rates_len > 8) {
-		rates = supp_rates_len - 8;
-		pos = skb_put(skb, 2 + rates);
-		*pos++ = WLAN_EID_EXT_SUPP_RATES;
-		*pos++ = rates;
-		memcpy(pos, &supp_rates[8], rates);
-	}
-
-	add_extra_ies(skb, sdata->u.sta.ie_proberesp,
-		      sdata->u.sta.ie_proberesp_len);
-
-	ifsta->probe_resp = skb;
-
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-				   IEEE80211_IFCC_BEACON_ENABLED);
-
-
-	rates = 0;
-	for (i = 0; i < supp_rates_len; i++) {
-		int bitrate = (supp_rates[i] & 0x7f) * 5;
-		for (j = 0; j < sband->n_bitrates; j++)
-			if (sband->bitrates[j].bitrate == bitrate)
-				rates |= BIT(j);
-	}
-	ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
-
-	ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
-
-	ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
-	ifsta->state = IEEE80211_STA_MLME_IBSS_JOINED;
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
-	ieee80211_led_assoc(local, true);
-
-	memset(&wrqu, 0, sizeof(wrqu));
-	memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
-	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
-
-	return res;
+	ieee80211_associated(sdata);
 }
 
-static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta,
-				   struct ieee80211_bss *bss)
-{
-	return __ieee80211_sta_join_ibss(sdata, ifsta,
-					 bss->cbss.bssid,
-					 bss->cbss.beacon_interval,
-					 bss->cbss.channel->center_freq,
-					 bss->supp_rates_len, bss->supp_rates,
-					 bss->cbss.capability);
-}
 
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				  struct ieee80211_mgmt *mgmt,
@@ -1703,11 +1363,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	int freq;
 	struct ieee80211_bss *bss;
-	struct sta_info *sta;
 	struct ieee80211_channel *channel;
-	u64 beacon_timestamp, rx_timestamp;
-	u32 supp_rates = 0;
-	enum ieee80211_band band = rx_status->band;
 
 	if (elems->ds_params && elems->ds_params_len == 1)
 		freq = ieee80211_channel_to_frequency(elems->ds_params[0]);
@@ -1719,133 +1375,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
 		return;
 
-	if (sdata->vif.type == NL80211_IFTYPE_ADHOC && elems->supp_rates &&
-	    memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
-		supp_rates = ieee80211_sta_get_rates(local, elems, band);
-
-		rcu_read_lock();
-
-		sta = sta_info_get(local, mgmt->sa);
-		if (sta) {
-			u32 prev_rates;
-
-			prev_rates = sta->sta.supp_rates[band];
-			/* make sure mandatory rates are always added */
-			sta->sta.supp_rates[band] = supp_rates |
-				ieee80211_mandatory_rates(local, band);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-			if (sta->sta.supp_rates[band] != prev_rates)
-				printk(KERN_DEBUG "%s: updated supp_rates set "
-				    "for %pM based on beacon info (0x%llx | "
-				    "0x%llx -> 0x%llx)\n",
-				    sdata->dev->name,
-				    sta->sta.addr,
-				    (unsigned long long) prev_rates,
-				    (unsigned long long) supp_rates,
-				    (unsigned long long) sta->sta.supp_rates[band]);
-#endif
-		} else {
-			ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
-		}
-
-		rcu_read_unlock();
-	}
-
 	bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
 					channel, beacon);
 	if (!bss)
 		return;
 
 	if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) &&
-	    (memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0)) {
+	    (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN) == 0)) {
 		struct ieee80211_channel_sw_ie *sw_elem =
 			(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
 		ieee80211_process_chanswitch(sdata, sw_elem, bss);
 	}
 
-	/* was just updated in ieee80211_bss_info_update */
-	beacon_timestamp = bss->cbss.tsf;
-
-	if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
-		goto put_bss;
-
-	/* check if we need to merge IBSS */
-
-	/* merge only on beacons (???) */
-	if (!beacon)
-		goto put_bss;
-
-	/* we use a fixed BSSID */
-	if (sdata->u.sta.flags & IEEE80211_STA_BSSID_SET)
-		goto put_bss;
-
-	/* not an IBSS */
-	if (!(bss->cbss.capability & WLAN_CAPABILITY_IBSS))
-		goto put_bss;
-
-	/* different channel */
-	if (bss->cbss.channel != local->oper_channel)
-		goto put_bss;
-
-	/* different SSID */
-	if (elems->ssid_len != sdata->u.sta.ssid_len ||
-	    memcmp(elems->ssid, sdata->u.sta.ssid,
-				sdata->u.sta.ssid_len))
-		goto put_bss;
-
-	if (rx_status->flag & RX_FLAG_TSFT) {
-		/*
-		 * For correct IBSS merging we need mactime; since mactime is
-		 * defined as the time the first data symbol of the frame hits
-		 * the PHY, and the timestamp of the beacon is defined as "the
-		 * time that the data symbol containing the first bit of the
-		 * timestamp is transmitted to the PHY plus the transmitting
-		 * STA's delays through its local PHY from the MAC-PHY
-		 * interface to its interface with the WM" (802.11 11.1.2)
-		 * - equals the time this bit arrives at the receiver - we have
-		 * to take into account the offset between the two.
-		 *
-		 * E.g. at 1 MBit that means mactime is 192 usec earlier
-		 * (=24 bytes * 8 usecs/byte) than the beacon timestamp.
-		 */
-		int rate;
-
-		if (rx_status->flag & RX_FLAG_HT)
-			rate = 65; /* TODO: HT rates */
-		else
-			rate = local->hw.wiphy->bands[band]->
-				bitrates[rx_status->rate_idx].bitrate;
-
-		rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
-	} else if (local && local->ops && local->ops->get_tsf)
-		/* second best option: get current TSF */
-		rx_timestamp = local->ops->get_tsf(local_to_hw(local));
-	else
-		/* can't merge without knowing the TSF */
-		rx_timestamp = -1LLU;
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-	printk(KERN_DEBUG "RX beacon SA=%pM BSSID="
-	       "%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n",
-	       mgmt->sa, mgmt->bssid,
-	       (unsigned long long)rx_timestamp,
-	       (unsigned long long)beacon_timestamp,
-	       (unsigned long long)(rx_timestamp - beacon_timestamp),
-	       jiffies);
-#endif
-
-	if (beacon_timestamp > rx_timestamp) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-		printk(KERN_DEBUG "%s: beacon TSF higher than "
-		       "local TSF - IBSS merge with BSSID %pM\n",
-		       sdata->dev->name, mgmt->bssid);
-#endif
-		ieee80211_sta_join_ibss(sdata, &sdata->u.sta, bss);
-		ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, supp_rates);
-	}
-
- put_bss:
 	ieee80211_rx_bss_put(local, bss);
 }
 
@@ -1857,7 +1398,6 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 {
 	size_t baselen;
 	struct ieee802_11_elems elems;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 
 	if (memcmp(mgmt->da, sdata->dev->dev_addr, ETH_ALEN))
 		return; /* ignore ProbeResp to foreign address */
@@ -1873,20 +1413,19 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 
 	/* direct probe may be part of the association flow */
 	if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
-							&ifsta->request)) {
+	    &sdata->u.mgd.request)) {
 		printk(KERN_DEBUG "%s direct probe responded\n",
 		       sdata->dev->name);
-		ieee80211_authenticate(sdata, ifsta);
+		ieee80211_authenticate(sdata);
 	}
 }
 
-
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt,
 				     size_t len,
 				     struct ieee80211_rx_status *rx_status)
 {
-	struct ieee80211_if_sta *ifsta;
+	struct ieee80211_if_managed *ifmgd;
 	size_t baselen;
 	struct ieee802_11_elems elems;
 	struct ieee80211_local *local = sdata->local;
@@ -1905,21 +1444,22 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return;
-	ifsta = &sdata->u.sta;
 
-	if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) ||
-	    memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
+	ifmgd = &sdata->u.mgd;
+
+	if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED) ||
+	    memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
 		return;
 
 	if (rx_status->freq != local->hw.conf.channel->center_freq)
 		return;
 
-	ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
+	ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
 				 elems.wmm_param_len);
 
 	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK &&
 	    local->hw.conf.flags & IEEE80211_CONF_PS) {
-		directed_tim = ieee80211_check_tim(&elems, ifsta->aid);
+		directed_tim = ieee80211_check_tim(&elems, ifmgd->aid);
 
 		if (directed_tim) {
 			if (local->hw.conf.dynamic_ps_timeout > 0) {
@@ -1954,14 +1494,15 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 			erp_valid, erp_value);
 
 
-	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param) {
+	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
+	    !(ifmgd->flags & IEEE80211_STA_TKIP_WEP_USED)) {
 		struct sta_info *sta;
 		struct ieee80211_supported_band *sband;
 		u16 ap_ht_cap_flags;
 
 		rcu_read_lock();
 
-		sta = sta_info_get(local, ifsta->bssid);
+		sta = sta_info_get(local, ifmgd->bssid);
 		if (!sta) {
 			rcu_read_unlock();
 			return;
@@ -1997,85 +1538,16 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	ieee80211_bss_info_change_notify(sdata, changed);
 }
 
-
-static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
-					struct ieee80211_if_sta *ifsta,
-					struct ieee80211_mgmt *mgmt,
-					size_t len)
+ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
+					  struct sk_buff *skb,
+					  struct ieee80211_rx_status *rx_status)
 {
 	struct ieee80211_local *local = sdata->local;
-	int tx_last_beacon;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *resp;
-	u8 *pos, *end;
-
-	if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED ||
-	    len < 24 + 2 || !ifsta->probe_resp)
-		return;
-
-	if (local->ops->tx_last_beacon)
-		tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
-	else
-		tx_last_beacon = 1;
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-	printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
-	       " (tx_last_beacon=%d)\n",
-	       sdata->dev->name, mgmt->sa, mgmt->da,
-	       mgmt->bssid, tx_last_beacon);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
-	if (!tx_last_beacon)
-		return;
-
-	if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 &&
-	    memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
-		return;
-
-	end = ((u8 *) mgmt) + len;
-	pos = mgmt->u.probe_req.variable;
-	if (pos[0] != WLAN_EID_SSID ||
-	    pos + 2 + pos[1] > end) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-		printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
-		       "from %pM\n",
-		       sdata->dev->name, mgmt->sa);
-#endif
-		return;
-	}
-	if (pos[1] != 0 &&
-	    (pos[1] != ifsta->ssid_len ||
-	     memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) {
-		/* Ignore ProbeReq for foreign SSID */
-		return;
-	}
-
-	/* Reply with ProbeResp */
-	skb = skb_copy(ifsta->probe_resp, GFP_KERNEL);
-	if (!skb)
-		return;
-
-	resp = (struct ieee80211_mgmt *) skb->data;
-	memcpy(resp->da, mgmt->sa, ETH_ALEN);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-	printk(KERN_DEBUG "%s: Sending ProbeResp to %pM\n",
-	       sdata->dev->name, resp->da);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-	ieee80211_tx_skb(sdata, skb, 0);
-}
-
-void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
-			   struct ieee80211_rx_status *rx_status)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta;
 	struct ieee80211_mgmt *mgmt;
 	u16 fc;
 
 	if (skb->len < 24)
-		goto fail;
-
-	ifsta = &sdata->u.sta;
+		return RX_DROP_MONITOR;
 
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
@@ -2090,147 +1562,68 @@ void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *
 	case IEEE80211_STYPE_REASSOC_RESP:
 	case IEEE80211_STYPE_DEAUTH:
 	case IEEE80211_STYPE_DISASSOC:
-		skb_queue_tail(&ifsta->skb_queue, skb);
-		queue_work(local->hw.workqueue, &ifsta->work);
-		return;
+		skb_queue_tail(&sdata->u.mgd.skb_queue, skb);
+		queue_work(local->hw.workqueue, &sdata->u.mgd.work);
+		return RX_QUEUED;
 	}
 
- fail:
-	kfree_skb(skb);
+	return RX_DROP_MONITOR;
 }
 
 static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 					 struct sk_buff *skb)
 {
 	struct ieee80211_rx_status *rx_status;
-	struct ieee80211_if_sta *ifsta;
 	struct ieee80211_mgmt *mgmt;
 	u16 fc;
 
-	ifsta = &sdata->u.sta;
-
 	rx_status = (struct ieee80211_rx_status *) skb->cb;
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
-	if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		switch (fc & IEEE80211_FCTL_STYPE) {
-		case IEEE80211_STYPE_PROBE_REQ:
-			ieee80211_rx_mgmt_probe_req(sdata, ifsta, mgmt,
-						    skb->len);
-			break;
-		case IEEE80211_STYPE_PROBE_RESP:
-			ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len,
-						     rx_status);
-			break;
-		case IEEE80211_STYPE_BEACON:
-			ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
-						 rx_status);
-			break;
-		case IEEE80211_STYPE_AUTH:
-			ieee80211_rx_mgmt_auth_ibss(sdata, ifsta, mgmt,
-						    skb->len);
-			break;
-		}
-	} else { /* NL80211_IFTYPE_STATION */
-		switch (fc & IEEE80211_FCTL_STYPE) {
-		case IEEE80211_STYPE_PROBE_RESP:
-			ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len,
-						     rx_status);
-			break;
-		case IEEE80211_STYPE_BEACON:
-			ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
-						 rx_status);
-			break;
-		case IEEE80211_STYPE_AUTH:
-			ieee80211_rx_mgmt_auth(sdata, ifsta, mgmt, skb->len);
-			break;
-		case IEEE80211_STYPE_ASSOC_RESP:
-			ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt,
-						     skb->len, 0);
-			break;
-		case IEEE80211_STYPE_REASSOC_RESP:
-			ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt,
-						     skb->len, 1);
-			break;
-		case IEEE80211_STYPE_DEAUTH:
-			ieee80211_rx_mgmt_deauth(sdata, ifsta, mgmt, skb->len);
-			break;
-		case IEEE80211_STYPE_DISASSOC:
-			ieee80211_rx_mgmt_disassoc(sdata, ifsta, mgmt,
-						   skb->len);
-			break;
-		}
+	switch (fc & IEEE80211_FCTL_STYPE) {
+	case IEEE80211_STYPE_PROBE_RESP:
+		ieee80211_rx_mgmt_probe_resp(sdata, mgmt, skb->len,
+					     rx_status);
+		break;
+	case IEEE80211_STYPE_BEACON:
+		ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
+					 rx_status);
+		break;
+	case IEEE80211_STYPE_AUTH:
+		ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len);
+		break;
+	case IEEE80211_STYPE_ASSOC_RESP:
+		ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 0);
+		break;
+	case IEEE80211_STYPE_REASSOC_RESP:
+		ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, 1);
+		break;
+	case IEEE80211_STYPE_DEAUTH:
+		ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
+		break;
+	case IEEE80211_STYPE_DISASSOC:
+		ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
+		break;
 	}
 
 	kfree_skb(skb);
 }
 
-
-static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_local *local = sdata->local;
-	int active = 0;
-	struct sta_info *sta;
-
-	rcu_read_lock();
-
-	list_for_each_entry_rcu(sta, &local->sta_list, list) {
-		if (sta->sdata == sdata &&
-		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
-			       jiffies)) {
-			active++;
-			break;
-		}
-	}
-
-	rcu_read_unlock();
-
-	return active;
-}
-
-
-static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
-{
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
-	ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
-	if (ieee80211_sta_active_ibss(sdata))
-		return;
-
-	if ((sdata->u.sta.flags & IEEE80211_STA_BSSID_SET) &&
-	    (!(sdata->u.sta.flags & IEEE80211_STA_AUTO_CHANNEL_SEL)))
-		return;
-
-	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
-	       "IBSS networks with same SSID (merge)\n", sdata->dev->name);
-
-	/* XXX maybe racy? */
-	if (sdata->local->scan_req)
-		return;
-
-	memcpy(sdata->local->int_scan_req.ssids[0].ssid,
-	       ifsta->ssid, IEEE80211_MAX_SSID_LEN);
-	sdata->local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
-	ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
-}
-
-
 static void ieee80211_sta_timer(unsigned long data)
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 
-	set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
-	queue_work(local->hw.workqueue, &ifsta->work);
+	set_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
+	queue_work(local->hw.workqueue, &ifmgd->work);
 }
 
-static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
+static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 
 	if (local->ops->reset_tsf) {
@@ -2238,191 +1631,39 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata,
 		local->ops->reset_tsf(local_to_hw(local));
 	}
 
-	ifsta->wmm_last_param_set = -1; /* allow any WMM update */
+	ifmgd->wmm_last_param_set = -1; /* allow any WMM update */
 
 
-	if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
-		ifsta->auth_alg = WLAN_AUTH_OPEN;
-	else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
-		ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
-	else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
-		ifsta->auth_alg = WLAN_AUTH_LEAP;
+	if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+		ifmgd->auth_alg = WLAN_AUTH_OPEN;
+	else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+		ifmgd->auth_alg = WLAN_AUTH_SHARED_KEY;
+	else if (ifmgd->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+		ifmgd->auth_alg = WLAN_AUTH_LEAP;
 	else
-		ifsta->auth_alg = WLAN_AUTH_OPEN;
-	ifsta->auth_transaction = -1;
-	ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
-	ifsta->assoc_scan_tries = 0;
-	ifsta->direct_probe_tries = 0;
-	ifsta->auth_tries = 0;
-	ifsta->assoc_tries = 0;
+		ifmgd->auth_alg = WLAN_AUTH_OPEN;
+	ifmgd->auth_transaction = -1;
+	ifmgd->flags &= ~IEEE80211_STA_ASSOCIATED;
+	ifmgd->assoc_scan_tries = 0;
+	ifmgd->direct_probe_tries = 0;
+	ifmgd->auth_tries = 0;
+	ifmgd->assoc_tries = 0;
 	netif_tx_stop_all_queues(sdata->dev);
 	netif_carrier_off(sdata->dev);
 }
 
-static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
-	u8 *pos;
-	u8 bssid[ETH_ALEN];
-	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
-	u16 capability;
-	int i;
-
-	if (sdata->u.sta.flags & IEEE80211_STA_BSSID_SET) {
-		memcpy(bssid, ifsta->bssid, ETH_ALEN);
-	} else {
-		/* Generate random, not broadcast, locally administered BSSID. Mix in
-		 * own MAC address to make sure that devices that do not have proper
-		 * random number generator get different BSSID. */
-		get_random_bytes(bssid, ETH_ALEN);
-		for (i = 0; i < ETH_ALEN; i++)
-			bssid[i] ^= sdata->dev->dev_addr[i];
-		bssid[0] &= ~0x01;
-		bssid[0] |= 0x02;
-	}
-
-	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
-	       sdata->dev->name, bssid);
-
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	if (local->hw.conf.beacon_int == 0)
-		local->hw.conf.beacon_int = 100;
-
-	capability = WLAN_CAPABILITY_IBSS;
-
-	if (sdata->default_key)
-		capability |= WLAN_CAPABILITY_PRIVACY;
-	else
-		sdata->drop_unencrypted = 0;
-
-	pos = supp_rates;
-	for (i = 0; i < sband->n_bitrates; i++) {
-		int rate = sband->bitrates[i].bitrate;
-		*pos++ = (u8) (rate / 5);
-	}
-
-	return __ieee80211_sta_join_ibss(sdata, ifsta,
-					 bssid, local->hw.conf.beacon_int,
-					 local->hw.conf.channel->center_freq,
-					 sband->n_bitrates, supp_rates,
-					 capability);
-}
-
-
-static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_if_sta *ifsta)
+static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_bss *bss;
-	int active_ibss;
-
-	if (ifsta->ssid_len == 0)
-		return -EINVAL;
-
-	active_ibss = ieee80211_sta_active_ibss(sdata);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-	printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
-	       sdata->dev->name, active_ibss);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
-	if (active_ibss)
-		return 0;
-
-	if (ifsta->flags & IEEE80211_STA_BSSID_SET)
-		bss = ieee80211_rx_bss_get(local, ifsta->bssid, 0,
-					   ifsta->ssid, ifsta->ssid_len);
-	else
-		bss = (void *)cfg80211_get_ibss(local->hw.wiphy,
-						NULL,
-						ifsta->ssid, ifsta->ssid_len);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-	if (bss)
-		printk(KERN_DEBUG "   sta_find_ibss: selected %pM current "
-		       "%pM\n", bss->cbss.bssid, ifsta->bssid);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
-	if (bss &&
-	    (!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) ||
-	     memcmp(ifsta->bssid, bss->cbss.bssid, ETH_ALEN))) {
-		int ret;
-
-		printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
-		       " based on configured SSID\n",
-		       sdata->dev->name, bss->cbss.bssid);
-
-		ret = ieee80211_sta_join_ibss(sdata, ifsta, bss);
-		ieee80211_rx_bss_put(local, bss);
-		return ret;
-	} else if (bss)
-		ieee80211_rx_bss_put(local, bss);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-	printk(KERN_DEBUG "   did not try to join ibss\n");
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
-	/* Selected IBSS not found in current scan results - try to scan */
-	if (ifsta->state == IEEE80211_STA_MLME_IBSS_JOINED &&
-	    !ieee80211_sta_active_ibss(sdata)) {
-		mod_timer(&ifsta->timer, jiffies +
-				      IEEE80211_IBSS_MERGE_INTERVAL);
-	} else if (time_after(jiffies, local->last_scan_completed +
-			      IEEE80211_SCAN_INTERVAL)) {
-		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
-		       "join\n", sdata->dev->name);
-
-		/* XXX maybe racy? */
-		if (local->scan_req)
-			return -EBUSY;
-
-		memcpy(local->int_scan_req.ssids[0].ssid,
-		       ifsta->ssid, IEEE80211_MAX_SSID_LEN);
-		local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
-		return ieee80211_request_scan(sdata, &local->int_scan_req);
-	} else if (ifsta->state != IEEE80211_STA_MLME_IBSS_JOINED) {
-		int interval = IEEE80211_SCAN_INTERVAL;
-
-		if (time_after(jiffies, ifsta->ibss_join_req +
-			       IEEE80211_IBSS_JOIN_TIMEOUT)) {
-			if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
-			    (!(local->oper_channel->flags &
-					IEEE80211_CHAN_NO_IBSS)))
-				return ieee80211_sta_create_ibss(sdata, ifsta);
-			if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
-				printk(KERN_DEBUG "%s: IBSS not allowed on"
-				       " %d MHz\n", sdata->dev->name,
-				       local->hw.conf.channel->center_freq);
-			}
-
-			/* No IBSS found - decrease scan interval and continue
-			 * scanning. */
-			interval = IEEE80211_SCAN_INTERVAL_SLOW;
-		}
-
-		ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
-		mod_timer(&ifsta->timer, jiffies + interval);
-		return 0;
-	}
-
-	return 0;
-}
-
-
-static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
-				     struct ieee80211_if_sta *ifsta)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_bss *bss;
-	u8 *bssid = ifsta->bssid, *ssid = ifsta->ssid;
-	u8 ssid_len = ifsta->ssid_len;
+	u8 *bssid = ifmgd->bssid, *ssid = ifmgd->ssid;
+	u8 ssid_len = ifmgd->ssid_len;
 	u16 capa_mask = WLAN_CAPABILITY_ESS;
 	u16 capa_val = WLAN_CAPABILITY_ESS;
 	struct ieee80211_channel *chan = local->oper_channel;
 
-	if (ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+	if (ifmgd->flags & (IEEE80211_STA_AUTO_SSID_SEL |
 			    IEEE80211_STA_AUTO_BSSID_SEL |
 			    IEEE80211_STA_AUTO_CHANNEL_SEL)) {
 		capa_mask |= WLAN_CAPABILITY_PRIVACY;
@@ -2430,13 +1671,13 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
 			capa_val |= WLAN_CAPABILITY_PRIVACY;
 	}
 
-	if (ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
+	if (ifmgd->flags & IEEE80211_STA_AUTO_CHANNEL_SEL)
 		chan = NULL;
 
-	if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
+	if (ifmgd->flags & IEEE80211_STA_AUTO_BSSID_SEL)
 		bssid = NULL;
 
-	if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) {
+	if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL) {
 		ssid = NULL;
 		ssid_len = 0;
 	}
@@ -2447,16 +1688,16 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
 
 	if (bss) {
 		ieee80211_set_freq(sdata, bss->cbss.channel->center_freq);
-		if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
+		if (!(ifmgd->flags & IEEE80211_STA_SSID_SET))
 			ieee80211_sta_set_ssid(sdata, bss->ssid,
 					       bss->ssid_len);
 		ieee80211_sta_set_bssid(sdata, bss->cbss.bssid);
 		ieee80211_sta_def_wmm_params(sdata, bss->supp_rates_len,
 						    bss->supp_rates);
-		if (sdata->u.sta.mfp == IEEE80211_MFP_REQUIRED)
-			sdata->u.sta.flags |= IEEE80211_STA_MFP_ENABLED;
+		if (sdata->u.mgd.mfp == IEEE80211_MFP_REQUIRED)
+			sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
 		else
-			sdata->u.sta.flags &= ~IEEE80211_STA_MFP_ENABLED;
+			sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED;
 
 		/* Send out direct probe if no probe resp was received or
 		 * the one we have is outdated
@@ -2464,31 +1705,31 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
 		if (!bss->last_probe_resp ||
 		    time_after(jiffies, bss->last_probe_resp
 					+ IEEE80211_SCAN_RESULT_EXPIRE))
-			ifsta->state = IEEE80211_STA_MLME_DIRECT_PROBE;
+			ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
 		else
-			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
+			ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
 
 		ieee80211_rx_bss_put(local, bss);
-		ieee80211_sta_reset_auth(sdata, ifsta);
+		ieee80211_sta_reset_auth(sdata);
 		return 0;
 	} else {
-		if (ifsta->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
-			ifsta->assoc_scan_tries++;
+		if (ifmgd->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
+			ifmgd->assoc_scan_tries++;
 			/* XXX maybe racy? */
 			if (local->scan_req)
 				return -1;
 			memcpy(local->int_scan_req.ssids[0].ssid,
-			       ifsta->ssid, IEEE80211_MAX_SSID_LEN);
-			if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
+			       ifmgd->ssid, IEEE80211_MAX_SSID_LEN);
+			if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL)
 				local->int_scan_req.ssids[0].ssid_len = 0;
 			else
-				local->int_scan_req.ssids[0].ssid_len = ifsta->ssid_len;
+				local->int_scan_req.ssids[0].ssid_len = ifmgd->ssid_len;
 			ieee80211_start_scan(sdata, &local->int_scan_req);
-			ifsta->state = IEEE80211_STA_MLME_AUTHENTICATE;
-			set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+			ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
+			set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
 		} else {
-			ifsta->assoc_scan_tries = 0;
-			ifsta->state = IEEE80211_STA_MLME_DISABLED;
+			ifmgd->assoc_scan_tries = 0;
+			ifmgd->state = IEEE80211_STA_MLME_DISABLED;
 		}
 	}
 	return -1;
@@ -2498,9 +1739,9 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata,
 static void ieee80211_sta_work(struct work_struct *work)
 {
 	struct ieee80211_sub_if_data *sdata =
-		container_of(work, struct ieee80211_sub_if_data, u.sta.work);
+		container_of(work, struct ieee80211_sub_if_data, u.mgd.work);
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta;
+	struct ieee80211_if_managed *ifmgd;
 	struct sk_buff *skb;
 
 	if (!netif_running(sdata->dev))
@@ -2509,60 +1750,53 @@ static void ieee80211_sta_work(struct work_struct *work)
 	if (local->sw_scanning || local->hw_scanning)
 		return;
 
-	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION &&
-		    sdata->vif.type != NL80211_IFTYPE_ADHOC))
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return;
-	ifsta = &sdata->u.sta;
+	ifmgd = &sdata->u.mgd;
 
-	while ((skb = skb_dequeue(&ifsta->skb_queue)))
+	while ((skb = skb_dequeue(&ifmgd->skb_queue)))
 		ieee80211_sta_rx_queued_mgmt(sdata, skb);
 
-	if (ifsta->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
-	    ifsta->state != IEEE80211_STA_MLME_AUTHENTICATE &&
-	    ifsta->state != IEEE80211_STA_MLME_ASSOCIATE &&
-	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
+	if (ifmgd->state != IEEE80211_STA_MLME_DIRECT_PROBE &&
+	    ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE &&
+	    ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE &&
+	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request)) {
 		ieee80211_start_scan(sdata, local->scan_req);
 		return;
 	}
 
-	if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
-		if (ieee80211_sta_config_auth(sdata, ifsta))
+	if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request)) {
+		if (ieee80211_sta_config_auth(sdata))
 			return;
-		clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
-	} else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
+		clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request);
+	} else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request))
 		return;
 
-	switch (ifsta->state) {
+	switch (ifmgd->state) {
 	case IEEE80211_STA_MLME_DISABLED:
 		break;
 	case IEEE80211_STA_MLME_DIRECT_PROBE:
-		ieee80211_direct_probe(sdata, ifsta);
+		ieee80211_direct_probe(sdata);
 		break;
 	case IEEE80211_STA_MLME_AUTHENTICATE:
-		ieee80211_authenticate(sdata, ifsta);
+		ieee80211_authenticate(sdata);
 		break;
 	case IEEE80211_STA_MLME_ASSOCIATE:
-		ieee80211_associate(sdata, ifsta);
+		ieee80211_associate(sdata);
 		break;
 	case IEEE80211_STA_MLME_ASSOCIATED:
-		ieee80211_associated(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_IBSS_SEARCH:
-		ieee80211_sta_find_ibss(sdata, ifsta);
-		break;
-	case IEEE80211_STA_MLME_IBSS_JOINED:
-		ieee80211_sta_merge_ibss(sdata, ifsta);
+		ieee80211_associated(sdata);
 		break;
 	default:
 		WARN_ON(1);
 		break;
 	}
 
-	if (ieee80211_privacy_mismatch(sdata, ifsta)) {
+	if (ieee80211_privacy_mismatch(sdata)) {
 		printk(KERN_DEBUG "%s: privacy configuration mismatch and "
 		       "mixed-cell disabled - disassociate\n", sdata->dev->name);
 
-		ieee80211_set_disassoc(sdata, ifsta, false, true,
+		ieee80211_set_disassoc(sdata, false, true,
 					WLAN_REASON_UNSPECIFIED);
 	}
 }
@@ -2571,155 +1805,106 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
 {
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		queue_work(sdata->local->hw.workqueue,
-			   &sdata->u.sta.work);
+			   &sdata->u.mgd.work);
 }
 
 /* interface setup */
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_if_sta *ifsta;
+	struct ieee80211_if_managed *ifmgd;
 
-	ifsta = &sdata->u.sta;
-	INIT_WORK(&ifsta->work, ieee80211_sta_work);
-	INIT_WORK(&ifsta->chswitch_work, ieee80211_chswitch_work);
-	setup_timer(&ifsta->timer, ieee80211_sta_timer,
+	ifmgd = &sdata->u.mgd;
+	INIT_WORK(&ifmgd->work, ieee80211_sta_work);
+	INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
+	setup_timer(&ifmgd->timer, ieee80211_sta_timer,
 		    (unsigned long) sdata);
-	setup_timer(&ifsta->chswitch_timer, ieee80211_chswitch_timer,
+	setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
 		    (unsigned long) sdata);
-	skb_queue_head_init(&ifsta->skb_queue);
+	skb_queue_head_init(&ifmgd->skb_queue);
 
-	ifsta->capab = WLAN_CAPABILITY_ESS;
-	ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
+	ifmgd->capab = WLAN_CAPABILITY_ESS;
+	ifmgd->auth_algs = IEEE80211_AUTH_ALG_OPEN |
 		IEEE80211_AUTH_ALG_SHARED_KEY;
-	ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
+	ifmgd->flags |= IEEE80211_STA_CREATE_IBSS |
 		IEEE80211_STA_AUTO_BSSID_SEL |
 		IEEE80211_STA_AUTO_CHANNEL_SEL;
 	if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
-		ifsta->flags |= IEEE80211_STA_WMM_ENABLED;
-}
-
-/*
- * Add a new IBSS station, will also be called by the RX code when,
- * in IBSS mode, receiving a frame from a yet-unknown station, hence
- * must be callable in atomic context.
- */
-struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
-					u8 *bssid,u8 *addr, u32 supp_rates)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta;
-	int band = local->hw.conf.channel->band;
-
-	/* TODO: Could consider removing the least recently used entry and
-	 * allow new one to be added. */
-	if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: No room for a new IBSS STA "
-			       "entry %pM\n", sdata->dev->name, addr);
-		}
-		return NULL;
-	}
-
-	if (compare_ether_addr(bssid, sdata->u.sta.bssid))
-		return NULL;
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Adding new IBSS station %pM (dev=%s)\n",
-	       wiphy_name(local->hw.wiphy), addr, sdata->dev->name);
-#endif
-
-	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
-	if (!sta)
-		return NULL;
-
-	set_sta_flags(sta, WLAN_STA_AUTHORIZED);
-
-	/* make sure mandatory rates are always added */
-	sta->sta.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(local, band);
-
-	rate_control_rate_init(sta);
-
-	if (sta_info_insert(sta))
-		return NULL;
-
-	return sta;
+		ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
 }
 
 /* configuration hooks */
-void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
-			    struct ieee80211_if_sta *ifsta)
+void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return;
 
-	if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
+	if ((ifmgd->flags & (IEEE80211_STA_BSSID_SET |
 			     IEEE80211_STA_AUTO_BSSID_SEL)) &&
-	    (ifsta->flags & (IEEE80211_STA_SSID_SET |
+	    (ifmgd->flags & (IEEE80211_STA_SSID_SET |
 			     IEEE80211_STA_AUTO_SSID_SEL))) {
 
-		if (ifsta->state == IEEE80211_STA_MLME_ASSOCIATED)
-			ieee80211_set_disassoc(sdata, ifsta, true, true,
+		if (ifmgd->state == IEEE80211_STA_MLME_ASSOCIATED)
+			ieee80211_set_disassoc(sdata, true, true,
 					       WLAN_REASON_DEAUTH_LEAVING);
 
-		set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
-		queue_work(local->hw.workqueue, &ifsta->work);
+		set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
+		queue_work(local->hw.workqueue, &ifmgd->work);
 	}
 }
 
-int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
+int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_if_sta *ifsta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	if (len > IEEE80211_MAX_SSID_LEN)
-		return -EINVAL;
+	ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
 
-	ifsta = &sdata->u.sta;
+	if (ifmgd->ssid_len)
+		ifmgd->flags |= IEEE80211_STA_SSID_SET;
+	else
+		ifmgd->flags &= ~IEEE80211_STA_SSID_SET;
 
-	if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) {
-		memset(ifsta->ssid, 0, sizeof(ifsta->ssid));
-		memcpy(ifsta->ssid, ssid, len);
-		ifsta->ssid_len = len;
-	}
+	return 0;
+}
 
-	ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
+{
+	struct ieee80211_if_managed *ifmgd;
 
-	if (len)
-		ifsta->flags |= IEEE80211_STA_SSID_SET;
-	else
-		ifsta->flags &= ~IEEE80211_STA_SSID_SET;
+	if (len > IEEE80211_MAX_SSID_LEN)
+		return -EINVAL;
+
+	ifmgd = &sdata->u.mgd;
 
-	if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		ifsta->ibss_join_req = jiffies;
-		ifsta->state = IEEE80211_STA_MLME_IBSS_SEARCH;
-		return ieee80211_sta_find_ibss(sdata, ifsta);
+	if (ifmgd->ssid_len != len || memcmp(ifmgd->ssid, ssid, len) != 0) {
+		memset(ifmgd->ssid, 0, sizeof(ifmgd->ssid));
+		memcpy(ifmgd->ssid, ssid, len);
+		ifmgd->ssid_len = len;
 	}
 
-	return 0;
+	return ieee80211_sta_commit(sdata);
 }
 
 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
 {
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-	memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
-	*len = ifsta->ssid_len;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	memcpy(ssid, ifmgd->ssid, ifmgd->ssid_len);
+	*len = ifmgd->ssid_len;
 	return 0;
 }
 
 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 {
-	struct ieee80211_if_sta *ifsta;
-
-	ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
 	if (is_valid_ether_addr(bssid)) {
-		memcpy(ifsta->bssid, bssid, ETH_ALEN);
-		ifsta->flags |= IEEE80211_STA_BSSID_SET;
+		memcpy(ifmgd->bssid, bssid, ETH_ALEN);
+		ifmgd->flags |= IEEE80211_STA_BSSID_SET;
 	} else {
-		memset(ifsta->bssid, 0, ETH_ALEN);
-		ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
+		memset(ifmgd->bssid, 0, ETH_ALEN);
+		ifmgd->flags &= ~IEEE80211_STA_BSSID_SET;
 	}
 
 	if (netif_running(sdata->dev)) {
@@ -2729,47 +1914,44 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 		}
 	}
 
-	return ieee80211_sta_set_ssid(sdata, ifsta->ssid, ifsta->ssid_len);
+	return ieee80211_sta_commit(sdata);
 }
 
 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len)
 {
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	kfree(ifsta->extra_ie);
+	kfree(ifmgd->extra_ie);
 	if (len == 0) {
-		ifsta->extra_ie = NULL;
-		ifsta->extra_ie_len = 0;
+		ifmgd->extra_ie = NULL;
+		ifmgd->extra_ie_len = 0;
 		return 0;
 	}
-	ifsta->extra_ie = kmalloc(len, GFP_KERNEL);
-	if (!ifsta->extra_ie) {
-		ifsta->extra_ie_len = 0;
+	ifmgd->extra_ie = kmalloc(len, GFP_KERNEL);
+	if (!ifmgd->extra_ie) {
+		ifmgd->extra_ie_len = 0;
 		return -ENOMEM;
 	}
-	memcpy(ifsta->extra_ie, ie, len);
-	ifsta->extra_ie_len = len;
+	memcpy(ifmgd->extra_ie, ie, len);
+	ifmgd->extra_ie_len = len;
 	return 0;
 }
 
 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason)
 {
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-
 	printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n",
 	       sdata->dev->name, reason);
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-	    sdata->vif.type != NL80211_IFTYPE_ADHOC)
+	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EINVAL;
 
-	ieee80211_set_disassoc(sdata, ifsta, true, true, reason);
+	ieee80211_set_disassoc(sdata, true, true, reason);
 	return 0;
 }
 
 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
 {
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
 	printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n",
 	       sdata->dev->name, reason);
@@ -2777,10 +1959,10 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EINVAL;
 
-	if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
-		return -1;
+	if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED))
+		return -ENOLINK;
 
-	ieee80211_set_disassoc(sdata, ifsta, false, true, reason);
+	ieee80211_set_disassoc(sdata, false, true, reason);
 	return 0;
 }
 
@@ -2788,14 +1970,6 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
 {
 	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-	struct ieee80211_if_sta *ifsta;
-
-	if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		ifsta = &sdata->u.sta;
-		if ((!(ifsta->flags & IEEE80211_STA_PREV_BSSID_SET)) ||
-		    !ieee80211_sta_active_ibss(sdata))
-			ieee80211_sta_find_ibss(sdata, ifsta);
-	}
 
 	/* Restart STA timers */
 	rcu_read_lock();
@@ -2842,3 +2016,36 @@ void ieee80211_dynamic_ps_timer(unsigned long data)
 
 	queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
 }
+
+void ieee80211_send_nullfunc(struct ieee80211_local *local,
+			     struct ieee80211_sub_if_data *sdata,
+			     int powersave)
+{
+	struct sk_buff *skb;
+	struct ieee80211_hdr *nullfunc;
+	__le16 fc;
+
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
+		return;
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+		       "frame\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+	memset(nullfunc, 0, 24);
+	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+			 IEEE80211_FCTL_TODS);
+	if (powersave)
+		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+	nullfunc->frame_control = fc;
+	memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
+	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 928da625e28..b9164c9a956 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -62,6 +62,18 @@ static inline void rate_control_rate_init(struct sta_info *sta)
 	ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
 }
 
+static inline void rate_control_rate_update(struct ieee80211_local *local,
+				    struct ieee80211_supported_band *sband,
+				    struct sta_info *sta, u32 changed)
+{
+	struct rate_control_ref *ref = local->rate_ctrl;
+	struct ieee80211_sta *ista = &sta->sta;
+	void *priv_sta = sta->rate_ctrl_priv;
+
+	if (ref->ops->rate_update)
+		ref->ops->rate_update(ref->priv, sband, ista,
+				      priv_sta, changed);
+}
 
 static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
 					   struct ieee80211_sta *sta,
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 1327d424bf3..66f7ecf51b9 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -838,7 +838,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 	if (rx->sdata->vif.type == NL80211_IFTYPE_ADHOC) {
 		u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
 						NL80211_IFTYPE_ADHOC);
-		if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
+		if (compare_ether_addr(bssid, rx->sdata->u.ibss.bssid) == 0)
 			sta->last_rx = jiffies;
 	} else
 	if (!is_multicast_ether_addr(hdr->addr1) ||
@@ -1702,13 +1702,13 @@ static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
 		return;
 	}
 
-	if (compare_ether_addr(mgmt->sa, sdata->u.sta.bssid) != 0 ||
-	    compare_ether_addr(mgmt->bssid, sdata->u.sta.bssid) != 0) {
+	if (compare_ether_addr(mgmt->sa, sdata->u.mgd.bssid) != 0 ||
+	    compare_ether_addr(mgmt->bssid, sdata->u.mgd.bssid) != 0) {
 		/* Not from the current AP. */
 		return;
 	}
 
-	if (sdata->u.sta.state == IEEE80211_STA_MLME_ASSOCIATE) {
+	if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATE) {
 		/* Association in progress; ignore SA Query */
 		return;
 	}
@@ -1727,7 +1727,7 @@ static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,
 	memset(resp, 0, 24);
 	memcpy(resp->da, mgmt->sa, ETH_ALEN);
 	memcpy(resp->sa, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(resp->bssid, sdata->u.sta.bssid, ETH_ALEN);
+	memcpy(resp->bssid, sdata->u.mgd.bssid, ETH_ALEN);
 	resp->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 	skb_put(skb, 1 + sizeof(resp->u.action.u.sa_query));
@@ -1745,7 +1745,6 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_local *local = rx->local;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
 	struct ieee80211_bss *bss;
 	int len = rx->skb->len;
@@ -1803,6 +1802,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 	case WLAN_CATEGORY_SPECTRUM_MGMT:
 		if (local->hw.conf.channel->band != IEEE80211_BAND_5GHZ)
 			return RX_DROP_MONITOR;
+
+		if (sdata->vif.type != NL80211_IFTYPE_STATION)
+			return RX_DROP_MONITOR;
+
 		switch (mgmt->u.action.u.measurement.action_code) {
 		case WLAN_ACTION_SPCT_MSR_REQ:
 			if (len < (IEEE80211_MIN_ACTION_SIZE +
@@ -1815,12 +1818,13 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 				   sizeof(mgmt->u.action.u.chan_switch)))
 				return RX_DROP_MONITOR;
 
-			if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0)
+			if (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN))
 				return RX_DROP_MONITOR;
 
-			bss = ieee80211_rx_bss_get(local, ifsta->bssid,
+			bss = ieee80211_rx_bss_get(local, sdata->u.mgd.bssid,
 					   local->hw.conf.channel->center_freq,
-					   ifsta->ssid, ifsta->ssid_len);
+					   sdata->u.mgd.ssid,
+					   sdata->u.mgd.ssid_len);
 			if (!bss)
 				return RX_DROP_MONITOR;
 
@@ -1876,11 +1880,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
 	    sdata->vif.type != NL80211_IFTYPE_ADHOC)
 		return RX_DROP_MONITOR;
 
-	if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
-		return RX_DROP_MONITOR;
 
-	ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
-	return RX_QUEUED;
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+		if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
+			return RX_DROP_MONITOR;
+		return ieee80211_sta_rx_mgmt(sdata, rx->skb, rx->status);
+	}
+
+	return ieee80211_ibss_rx_mgmt(sdata, rx->skb, rx->status);
 }
 
 static void ieee80211_rx_michael_mic_report(struct net_device *dev,
@@ -2083,7 +2090,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 	case NL80211_IFTYPE_STATION:
 		if (!bssid)
 			return 0;
-		if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+		if (!ieee80211_bssid_match(bssid, sdata->u.mgd.bssid)) {
 			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
@@ -2101,7 +2108,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 		if (ieee80211_is_beacon(hdr->frame_control)) {
 			return 1;
 		}
-		else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+		else if (!ieee80211_bssid_match(bssid, sdata->u.ibss.bssid)) {
 			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index f883ab9f1e6..0e81e1633a6 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -63,20 +63,15 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 {
 	struct ieee80211_bss *bss;
 	int clen;
-	enum cfg80211_signal_type sigtype = CFG80211_SIGNAL_TYPE_NONE;
 	s32 signal = 0;
 
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
-		sigtype = CFG80211_SIGNAL_TYPE_MBM;
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
 		signal = rx_status->signal * 100;
-	} else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
-		sigtype = CFG80211_SIGNAL_TYPE_UNSPEC;
+	else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
 		signal = (rx_status->signal * 100) / local->hw.max_signal;
-	}
 
 	bss = (void *)cfg80211_inform_bss_frame(local->hw.wiphy, channel,
-						mgmt, len, signal, sigtype,
-						GFP_ATOMIC);
+						mgmt, len, signal, GFP_ATOMIC);
 
 	if (!bss)
 		return NULL;
@@ -207,36 +202,6 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 	return RX_QUEUED;
 }
 
-void ieee80211_send_nullfunc(struct ieee80211_local *local,
-				    struct ieee80211_sub_if_data *sdata,
-				    int powersave)
-{
-	struct sk_buff *skb;
-	struct ieee80211_hdr *nullfunc;
-	__le16 fc;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
-		       "frame\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
-	memset(nullfunc, 0, 24);
-	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
-			 IEEE80211_FCTL_TODS);
-	if (powersave)
-		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
-	nullfunc->frame_control = fc;
-	memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
-	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
-
-	ieee80211_tx_skb(sdata, skb, 0);
-}
-
 void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -280,6 +245,9 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 	netif_addr_unlock(local->mdev);
 	netif_tx_unlock_bh(local->mdev);
 
+	if (local->ops->sw_scan_complete)
+		local->ops->sw_scan_complete(local_to_hw(local));
+
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		if (!netif_running(sdata->dev))
@@ -287,7 +255,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 
 		/* Tell AP we're back */
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
 				ieee80211_send_nullfunc(local, sdata, 0);
 				netif_tx_wake_all_queues(sdata->dev);
 			}
@@ -305,6 +273,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 
  done:
 	ieee80211_mlme_notify_scan_completed(local);
+	ieee80211_ibss_notify_scan_completed(local);
 	ieee80211_mesh_notify_scan_completed(local);
 }
 EXPORT_SYMBOL(ieee80211_scan_completed);
@@ -367,7 +336,8 @@ void ieee80211_scan_work(struct work_struct *work)
 			ieee80211_send_probe_req(
 				sdata, NULL,
 				local->scan_req->ssids[i].ssid,
-				local->scan_req->ssids[i].ssid_len);
+				local->scan_req->ssids[i].ssid_len,
+				local->scan_req->ie, local->scan_req->ie_len);
 		next_delay = IEEE80211_CHANNEL_TIME;
 		break;
 	}
@@ -428,6 +398,8 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 	}
 
 	local->sw_scanning = true;
+	if (local->ops->sw_scan_start)
+		local->ops->sw_scan_start(local_to_hw(local));
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
@@ -442,7 +414,7 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 					    IEEE80211_IFCC_BEACON_ENABLED);
 
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
 				netif_tx_stop_all_queues(sdata->dev);
 				ieee80211_send_nullfunc(local, sdata, 1);
 			}
@@ -477,7 +449,7 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_scan_request *req)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_sta *ifsta;
+	struct ieee80211_if_managed *ifmgd;
 
 	if (!req)
 		return -EINVAL;
@@ -502,9 +474,9 @@ int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 		return -EBUSY;
 	}
 
-	ifsta = &sdata->u.sta;
-	set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
-	queue_work(local->hw.workqueue, &ifsta->work);
+	ifmgd = &sdata->u.mgd;
+	set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
+	queue_work(local->hw.workqueue, &ifmgd->work);
 
 	return 0;
 }
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 47bb2aed281..5f7a2624ed7 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -88,16 +88,16 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 void ieee80211_chswitch_work(struct work_struct *work)
 {
 	struct ieee80211_sub_if_data *sdata =
-		container_of(work, struct ieee80211_sub_if_data, u.sta.chswitch_work);
+		container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
 	struct ieee80211_bss *bss;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
 	if (!netif_running(sdata->dev))
 		return;
 
-	bss = ieee80211_rx_bss_get(sdata->local, ifsta->bssid,
+	bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
 				   sdata->local->hw.conf.channel->center_freq,
-				   ifsta->ssid, ifsta->ssid_len);
+				   ifmgd->ssid, ifmgd->ssid_len);
 	if (!bss)
 		goto exit;
 
@@ -108,7 +108,7 @@ void ieee80211_chswitch_work(struct work_struct *work)
 
 	ieee80211_rx_bss_put(sdata->local, bss);
 exit:
-	ifsta->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
 }
@@ -117,9 +117,9 @@ void ieee80211_chswitch_timer(unsigned long data)
 {
 	struct ieee80211_sub_if_data *sdata =
 		(struct ieee80211_sub_if_data *) data;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	queue_work(sdata->local->hw.workqueue, &ifsta->chswitch_work);
+	queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
 }
 
 void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
@@ -127,14 +127,14 @@ void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 				  struct ieee80211_bss *bss)
 {
 	struct ieee80211_channel *new_ch;
-	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
 
 	/* FIXME: Handle ADHOC later */
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return;
 
-	if (ifsta->state != IEEE80211_STA_MLME_ASSOCIATED)
+	if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
 		return;
 
 	if (sdata->local->sw_scanning || sdata->local->hw_scanning)
@@ -143,7 +143,7 @@ void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	/* Disregard subsequent beacons if we are already running a timer
 	   processing a CSA */
 
-	if (ifsta->flags & IEEE80211_STA_CSA_RECEIVED)
+	if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
 		return;
 
 	new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
@@ -153,12 +153,12 @@ void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	sdata->local->csa_channel = new_ch;
 
 	if (sw_elem->count <= 1) {
-		queue_work(sdata->local->hw.workqueue, &ifsta->chswitch_work);
+		queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
 	} else {
 		ieee80211_stop_queues_by_reason(&sdata->local->hw,
 						IEEE80211_QUEUE_STOP_REASON_CSA);
-		ifsta->flags |= IEEE80211_STA_CSA_RECEIVED;
-		mod_timer(&ifsta->chswitch_timer,
+		ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+		mod_timer(&ifmgd->chswitch_timer,
 			  jiffies +
 			  msecs_to_jiffies(sw_elem->count *
 					   bss->cbss.beacon_interval));
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 634f65c0130..4ba3c540fcf 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -202,6 +202,18 @@ void sta_info_destroy(struct sta_info *sta)
 		/* Make sure timer won't free the tid_rx struct, see below */
 		if (tid_rx)
 			tid_rx->shutdown = true;
+
+		/*
+		 * The stop callback cannot find this station any more, but
+		 * it didn't complete its work -- start the queue if necessary
+		 */
+		if (sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_INITIATOR_MSK &&
+		    sta->ampdu_mlme.tid_state_tx[i] & HT_AGG_STATE_REQ_STOP_BA_MSK &&
+		    local->hw.ampdu_queues)
+			ieee80211_wake_queue_by_reason(&local->hw,
+				local->hw.queues + sta->tid_to_tx_q[i],
+				IEEE80211_QUEUE_STOP_REASON_AGGREGATION);
+
 		spin_unlock_bh(&sta->lock);
 
 		/*
@@ -275,8 +287,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		 * enable session_timer's data differentiation. refer to
 		 * sta_rx_agg_session_timer_expired for useage */
 		sta->timer_to_tid[i] = i;
-		/* tid to tx queue: initialize according to HW (0 is valid) */
-		sta->tid_to_tx_q[i] = ieee80211_num_queues(&local->hw);
+		sta->tid_to_tx_q[i] = -1;
 		/* rx */
 		sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
 		sta->ampdu_mlme.tid_rx[i] = NULL;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index d9653231992..1f45573c580 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -90,6 +90,7 @@ struct tid_ampdu_tx {
  * @buf_size: buffer size for incoming A-MPDUs
  * @timeout: reset timer value (in TUs).
  * @dialog_token: dialog token for aggregation session
+ * @shutdown: this session is being shut down due to STA removal
  */
 struct tid_ampdu_rx {
 	struct sk_buff **reorder_buf;
@@ -200,7 +201,7 @@ struct sta_ampdu_mlme {
  * @tid_seq: per-TID sequence numbers for sending to this STA
  * @ampdu_mlme: A-MPDU state machine state
  * @timer_to_tid: identity mapping to ID timers
- * @tid_to_tx_q: map tid to tx queue
+ * @tid_to_tx_q: map tid to tx queue (invalid == negative values)
  * @llid: Local link ID
  * @plid: Peer link ID
  * @reason: Cancel reason on PLINK_HOLDING state
@@ -275,7 +276,7 @@ struct sta_info {
 	 */
 	struct sta_ampdu_mlme ampdu_mlme;
 	u8 timer_to_tid[STA_TID_NUM];
-	u8 tid_to_tx_q[STA_TID_NUM];
+	s8 tid_to_tx_q[STA_TID_NUM];
 
 #ifdef CONFIG_MAC80211_MESH
 	/*
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 33926831c64..c3f0e950125 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -876,7 +876,6 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
 	return TX_CONTINUE;
 }
 
-
 /* actual transmit path */
 
 /*
@@ -1016,12 +1015,20 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	tx->sta = sta_info_get(local, hdr->addr1);
 
 	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control)) {
+		unsigned long flags;
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
 
+		spin_lock_irqsave(&tx->sta->lock, flags);
 		state = &tx->sta->ampdu_mlme.tid_state_tx[tid];
-		if (*state == HT_AGG_STATE_OPERATIONAL)
+		if (*state == HT_AGG_STATE_OPERATIONAL) {
 			info->flags |= IEEE80211_TX_CTL_AMPDU;
+			if (local->hw.ampdu_queues)
+				skb_set_queue_mapping(
+					skb, tx->local->hw.queues +
+					     tx->sta->tid_to_tx_q[tid]);
+		}
+		spin_unlock_irqrestore(&tx->sta->lock, flags);
 	}
 
 	if (is_multicast_ether_addr(hdr->addr1)) {
@@ -1085,7 +1092,8 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 	int ret, i;
 
 	if (skb) {
-		if (netif_subqueue_stopped(local->mdev, skb))
+		if (ieee80211_queue_stopped(&local->hw,
+					    skb_get_queue_mapping(skb)))
 			return IEEE80211_TX_PENDING;
 
 		ret = local->ops->tx(local_to_hw(local), skb);
@@ -1101,8 +1109,8 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 			info = IEEE80211_SKB_CB(tx->extra_frag[i]);
 			info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
 					 IEEE80211_TX_CTL_FIRST_FRAGMENT);
-			if (netif_subqueue_stopped(local->mdev,
-						   tx->extra_frag[i]))
+			if (ieee80211_queue_stopped(&local->hw,
+					skb_get_queue_mapping(tx->extra_frag[i])))
 				return IEEE80211_TX_FRAG_AGAIN;
 
 			ret = local->ops->tx(local_to_hw(local),
@@ -1625,7 +1633,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	case NL80211_IFTYPE_STATION:
 		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 		/* BSSID SA DA */
-		memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
+		memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN);
 		memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
 		memcpy(hdr.addr3, skb->data, ETH_ALEN);
 		hdrlen = 24;
@@ -1634,7 +1642,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		/* DA SA BSSID */
 		memcpy(hdr.addr1, skb->data, ETH_ALEN);
 		memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
-		memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
+		memcpy(hdr.addr3, sdata->u.ibss.bssid, ETH_ALEN);
 		hdrlen = 24;
 		break;
 	default:
@@ -1920,7 +1928,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	struct ieee80211_tx_info *info;
 	struct ieee80211_sub_if_data *sdata = NULL;
 	struct ieee80211_if_ap *ap = NULL;
-	struct ieee80211_if_sta *ifsta = NULL;
 	struct beacon_data *beacon;
 	struct ieee80211_supported_band *sband;
 	enum ieee80211_band band = local->hw.conf.channel->band;
@@ -1972,13 +1979,13 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 		} else
 			goto out;
 	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+		struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 		struct ieee80211_hdr *hdr;
-		ifsta = &sdata->u.sta;
 
-		if (!ifsta->probe_resp)
+		if (!ifibss->probe_resp)
 			goto out;
 
-		skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC);
+		skb = skb_copy(ifibss->probe_resp, GFP_ATOMIC);
 		if (!skb)
 			goto out;
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 73c7d7345ab..e0431a1d218 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -344,15 +344,36 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	/* we don't need to track ampdu queues */
-	if (queue < ieee80211_num_regular_queues(hw)) {
-		__clear_bit(reason, &local->queue_stop_reasons[queue]);
+	if (queue >= hw->queues) {
+		if (local->ampdu_ac_queue[queue - hw->queues] < 0)
+			return;
+
+		/*
+		 * for virtual aggregation queues, we need to refcount the
+		 * internal mac80211 disable (multiple times!), keep track of
+		 * driver disable _and_ make sure the regular queue is
+		 * actually enabled.
+		 */
+		if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
+			local->amdpu_ac_stop_refcnt[queue - hw->queues]--;
+		else
+			__clear_bit(reason, &local->queue_stop_reasons[queue]);
 
-		if (local->queue_stop_reasons[queue] != 0)
-			/* someone still has this queue stopped */
+		if (local->queue_stop_reasons[queue] ||
+		    local->amdpu_ac_stop_refcnt[queue - hw->queues])
 			return;
+
+		/* now go on to treat the corresponding regular queue */
+		queue = local->ampdu_ac_queue[queue - hw->queues];
+		reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
 	}
 
+	__clear_bit(reason, &local->queue_stop_reasons[queue]);
+
+	if (local->queue_stop_reasons[queue] != 0)
+		/* someone still has this queue stopped */
+		return;
+
 	if (test_bit(queue, local->queues_pending)) {
 		set_bit(queue, local->queues_pending_run);
 		tasklet_schedule(&local->tx_pending_tasklet);
@@ -361,8 +382,8 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 	}
 }
 
-static void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
-					   enum queue_stop_reason reason)
+void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	unsigned long flags;
@@ -384,15 +405,33 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	/* we don't need to track ampdu queues */
-	if (queue < ieee80211_num_regular_queues(hw))
-		__set_bit(reason, &local->queue_stop_reasons[queue]);
+	if (queue >= hw->queues) {
+		if (local->ampdu_ac_queue[queue - hw->queues] < 0)
+			return;
+
+		/*
+		 * for virtual aggregation queues, we need to refcount the
+		 * internal mac80211 disable (multiple times!), keep track of
+		 * driver disable _and_ make sure the regular queue is
+		 * actually enabled.
+		 */
+		if (reason == IEEE80211_QUEUE_STOP_REASON_AGGREGATION)
+			local->amdpu_ac_stop_refcnt[queue - hw->queues]++;
+		else
+			__set_bit(reason, &local->queue_stop_reasons[queue]);
+
+		/* now go on to treat the corresponding regular queue */
+		queue = local->ampdu_ac_queue[queue - hw->queues];
+		reason = IEEE80211_QUEUE_STOP_REASON_AGGREGATION;
+	}
+
+	__set_bit(reason, &local->queue_stop_reasons[queue]);
 
 	netif_stop_subqueue(local->mdev, queue);
 }
 
-static void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
-					   enum queue_stop_reason reason)
+void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	unsigned long flags;
@@ -418,7 +457,7 @@ void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 
-	for (i = 0; i < ieee80211_num_queues(hw); i++)
+	for (i = 0; i < hw->queues; i++)
 		__ieee80211_stop_queue(hw, i, reason);
 
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
@@ -434,6 +473,16 @@ EXPORT_SYMBOL(ieee80211_stop_queues);
 int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
+	unsigned long flags;
+
+	if (queue >= hw->queues) {
+		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+		queue = local->ampdu_ac_queue[queue - hw->queues];
+		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+		if (queue < 0)
+			return true;
+	}
+
 	return __netif_subqueue_stopped(local->mdev, queue);
 }
 EXPORT_SYMBOL(ieee80211_queue_stopped);
@@ -701,6 +750,27 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
 		local->ops->conf_tx(local_to_hw(local), i, &qparam);
 }
 
+void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
+				  const size_t supp_rates_len,
+				  const u8 *supp_rates)
+{
+	struct ieee80211_local *local = sdata->local;
+	int i, have_higher_than_11mbit = 0;
+
+	/* cf. IEEE 802.11 9.2.12 */
+	for (i = 0; i < supp_rates_len; i++)
+		if ((supp_rates[i] & 0x7f) * 5 > 110)
+			have_higher_than_11mbit = 1;
+
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	    have_higher_than_11mbit)
+		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+	else
+		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
+	ieee80211_set_wmm_default(sdata);
+}
+
 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 		      int encrypt)
 {
@@ -767,3 +837,161 @@ u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			mandatory_rates |= BIT(i);
 	return mandatory_rates;
 }
+
+void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
+			 u16 transaction, u16 auth_alg,
+			 u8 *extra, size_t extra_len,
+			 const u8 *bssid, int encrypt)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	const u8 *ie_auth = NULL;
+	int ie_auth_len = 0;
+
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+		ie_auth_len = sdata->u.mgd.ie_auth_len;
+		ie_auth = sdata->u.mgd.ie_auth;
+	}
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    sizeof(*mgmt) + 6 + extra_len + ie_auth_len);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
+		       "frame\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
+	memset(mgmt, 0, 24 + 6);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_AUTH);
+	if (encrypt)
+		mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+	memcpy(mgmt->da, bssid, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(mgmt->bssid, bssid, ETH_ALEN);
+	mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg);
+	mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
+	mgmt->u.auth.status_code = cpu_to_le16(0);
+	if (extra)
+		memcpy(skb_put(skb, extra_len), extra, extra_len);
+	if (ie_auth)
+		memcpy(skb_put(skb, ie_auth_len), ie_auth, ie_auth_len);
+
+	ieee80211_tx_skb(sdata, skb, encrypt);
+}
+
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+			      u8 *ssid, size_t ssid_len,
+			      u8 *ie, size_t ie_len)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u8 *pos, *supp_rates, *esupp_rates = NULL, *extra_preq_ie = NULL;
+	int i, extra_preq_ie_len = 0;
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_STATION:
+		extra_preq_ie_len = sdata->u.mgd.ie_probereq_len;
+		extra_preq_ie = sdata->u.mgd.ie_probereq;
+		break;
+	default:
+		break;
+	}
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
+			    ie_len + extra_preq_ie_len);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
+		       "request\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+	memset(mgmt, 0, 24);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_PROBE_REQ);
+	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+	if (dst) {
+		memcpy(mgmt->da, dst, ETH_ALEN);
+		memcpy(mgmt->bssid, dst, ETH_ALEN);
+	} else {
+		memset(mgmt->da, 0xff, ETH_ALEN);
+		memset(mgmt->bssid, 0xff, ETH_ALEN);
+	}
+	pos = skb_put(skb, 2 + ssid_len);
+	*pos++ = WLAN_EID_SSID;
+	*pos++ = ssid_len;
+	memcpy(pos, ssid, ssid_len);
+
+	supp_rates = skb_put(skb, 2);
+	supp_rates[0] = WLAN_EID_SUPP_RATES;
+	supp_rates[1] = 0;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	for (i = 0; i < sband->n_bitrates; i++) {
+		struct ieee80211_rate *rate = &sband->bitrates[i];
+		if (esupp_rates) {
+			pos = skb_put(skb, 1);
+			esupp_rates[1]++;
+		} else if (supp_rates[1] == 8) {
+			esupp_rates = skb_put(skb, 3);
+			esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
+			esupp_rates[1] = 1;
+			pos = &esupp_rates[2];
+		} else {
+			pos = skb_put(skb, 1);
+			supp_rates[1]++;
+		}
+		*pos = rate->bitrate / 5;
+	}
+
+	if (ie)
+		memcpy(skb_put(skb, ie_len), ie, ie_len);
+	if (extra_preq_ie)
+		memcpy(skb_put(skb, extra_preq_ie_len), extra_preq_ie,
+		       extra_preq_ie_len);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
+			    struct ieee802_11_elems *elems,
+			    enum ieee80211_band band)
+{
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_rate *bitrates;
+	size_t num_rates;
+	u32 supp_rates;
+	int i, j;
+	sband = local->hw.wiphy->bands[band];
+
+	if (!sband) {
+		WARN_ON(1);
+		sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	}
+
+	bitrates = sband->bitrates;
+	num_rates = sband->n_bitrates;
+	supp_rates = 0;
+	for (i = 0; i < elems->supp_rates_len +
+		     elems->ext_supp_rates_len; i++) {
+		u8 rate = 0;
+		int own_rate;
+		if (i < elems->supp_rates_len)
+			rate = elems->supp_rates[i];
+		else if (elems->ext_supp_rates)
+			rate = elems->ext_supp_rates
+				[i - elems->supp_rates_len];
+		own_rate = 5 * (rate & 0x7f);
+		for (j = 0; j < num_rates; j++)
+			if (bitrates[j].bitrate == own_rate)
+				supp_rates |= BIT(j);
+	}
+	return supp_rates;
+}
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 2b023dce8b2..f6924fc065d 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -132,139 +132,37 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 	if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
 		return -EOPNOTSUPP;
 
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
 		if (ret)
 			return ret;
-		sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
-		ieee80211_sta_req_auth(sdata, &sdata->u.sta);
+		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+		ieee80211_sta_req_auth(sdata);
 		return 0;
 	}
 
 	return -EOPNOTSUPP;
 }
 
-static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
-{
-	u8 wstats_flags = 0;
-
-	wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
-					   IEEE80211_HW_SIGNAL_DBM) ?
-				IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
-	wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
-				IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-		wstats_flags |= IW_QUAL_DBM;
-
-	return wstats_flags;
-}
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
-				 struct iw_request_info *info,
-				 struct iw_point *data, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct iw_range *range = (struct iw_range *) extra;
-	enum ieee80211_band band;
-	int c = 0;
-
-	data->length = sizeof(struct iw_range);
-	memset(range, 0, sizeof(struct iw_range));
-
-	range->we_version_compiled = WIRELESS_EXT;
-	range->we_version_source = 21;
-	range->retry_capa = IW_RETRY_LIMIT;
-	range->retry_flags = IW_RETRY_LIMIT;
-	range->min_retry = 0;
-	range->max_retry = 255;
-	range->min_rts = 0;
-	range->max_rts = 2347;
-	range->min_frag = 256;
-	range->max_frag = 2346;
-
-	range->encoding_size[0] = 5;
-	range->encoding_size[1] = 13;
-	range->num_encoding_sizes = 2;
-	range->max_encoding_tokens = NUM_DEFAULT_KEYS;
-
-	/* cfg80211 requires this, and enforces 0..100 */
-	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
-		range->max_qual.level = 100;
-	else if  (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-		range->max_qual.level = -110;
-	else
-		range->max_qual.level = 0;
-
-	if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
-		range->max_qual.noise = -110;
-	else
-		range->max_qual.noise = 0;
-
-	range->max_qual.qual = 100;
-	range->max_qual.updated = ieee80211_get_wstats_flags(local);
-
-	range->avg_qual.qual = 50;
-	/* not always true but better than nothing */
-	range->avg_qual.level = range->max_qual.level / 2;
-	range->avg_qual.noise = range->max_qual.noise / 2;
-	range->avg_qual.updated = ieee80211_get_wstats_flags(local);
-
-	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
-			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
-
-
-	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
-		int i;
-		struct ieee80211_supported_band *sband;
-
-		sband = local->hw.wiphy->bands[band];
-
-		if (!sband)
-			continue;
-
-		for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
-			struct ieee80211_channel *chan = &sband->channels[i];
-
-			if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
-				range->freq[c].i =
-					ieee80211_frequency_to_channel(
-						chan->center_freq);
-				range->freq[c].m = chan->center_freq;
-				range->freq[c].e = 6;
-				c++;
-			}
-		}
-	}
-	range->num_channels = c;
-	range->num_frequency = c;
-
-	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
-	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
-	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
-	range->scan_capa |= IW_SCAN_CAPA_ESSID;
-
-	return 0;
-}
-
-
 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 				   struct iw_request_info *info,
 				   struct iw_freq *freq, char *extra)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (sdata->vif.type == NL80211_IFTYPE_ADHOC ||
-	    sdata->vif.type == NL80211_IFTYPE_STATION)
-		sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 
 	/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 	if (freq->e == 0) {
 		if (freq->m < 0) {
-			if (sdata->vif.type == NL80211_IFTYPE_ADHOC ||
-			    sdata->vif.type == NL80211_IFTYPE_STATION)
-				sdata->u.sta.flags |=
+			if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+				sdata->u.ibss.flags |=
+					IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+			else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+				sdata->u.mgd.flags |=
 					IEEE80211_STA_AUTO_CHANNEL_SEL;
 			return 0;
 		} else
@@ -301,32 +199,35 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata;
 	size_t len = data->length;
+	int ret;
 
 	/* iwconfig uses nul termination in SSID.. */
 	if (len > 0 && ssid[len - 1] == '\0')
 		len--;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		int ret;
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
 			if (len > IEEE80211_MAX_SSID_LEN)
 				return -EINVAL;
-			memcpy(sdata->u.sta.ssid, ssid, len);
-			sdata->u.sta.ssid_len = len;
+			memcpy(sdata->u.mgd.ssid, ssid, len);
+			sdata->u.mgd.ssid_len = len;
 			return 0;
 		}
+
 		if (data->flags)
-			sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
+			sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
 		else
-			sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
+			sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
+
 		ret = ieee80211_sta_set_ssid(sdata, ssid, len);
 		if (ret)
 			return ret;
-		ieee80211_sta_req_auth(sdata, &sdata->u.sta);
+
+		ieee80211_sta_req_auth(sdata);
 		return 0;
-	}
+	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return ieee80211_ibss_set_ssid(sdata, ssid, len);
 
 	return -EOPNOTSUPP;
 }
@@ -340,8 +241,7 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 
 	struct ieee80211_sub_if_data *sdata;
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
 		if (res == 0) {
 			data->length = len;
@@ -349,6 +249,14 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 		} else
 			data->flags = 0;
 		return res;
+	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+		int res = ieee80211_ibss_get_ssid(sdata, ssid, &len);
+		if (res == 0) {
+			data->length = len;
+			data->flags = 1;
+		} else
+			data->flags = 0;
+		return res;
 	}
 
 	return -EOPNOTSUPP;
@@ -362,26 +270,35 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 	struct ieee80211_sub_if_data *sdata;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int ret;
 		if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
-			memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
+			memcpy(sdata->u.mgd.bssid, (u8 *) &ap_addr->sa_data,
 			       ETH_ALEN);
 			return 0;
 		}
 		if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
-			sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
+			sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
 				IEEE80211_STA_AUTO_CHANNEL_SEL;
 		else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
-			sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
+			sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
 		else
-			sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+			sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 		ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
 		if (ret)
 			return ret;
-		ieee80211_sta_req_auth(sdata, &sdata->u.sta);
+		ieee80211_sta_req_auth(sdata);
 		return 0;
+	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+		if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
+			sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
+					       IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+		else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
+			sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL;
+		else
+			sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_BSSID_SEL;
+
+		return ieee80211_ibss_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
 		/*
 		 * If it is necessary to update the WDS peer address
@@ -410,17 +327,20 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 	struct ieee80211_sub_if_data *sdata;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		if (sdata->u.sta.state == IEEE80211_STA_MLME_ASSOCIATED ||
-		    sdata->u.sta.state == IEEE80211_STA_MLME_IBSS_JOINED) {
+	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+		if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
 			ap_addr->sa_family = ARPHRD_ETHER;
-			memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
-			return 0;
-		} else {
+			memcpy(&ap_addr->sa_data, sdata->u.mgd.bssid, ETH_ALEN);
+		} else
 			memset(&ap_addr->sa_data, 0, ETH_ALEN);
-			return 0;
-		}
+		return 0;
+	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+		if (sdata->u.ibss.state == IEEE80211_IBSS_MLME_JOINED) {
+			ap_addr->sa_family = ARPHRD_ETHER;
+			memcpy(&ap_addr->sa_data, sdata->u.ibss.bssid, ETH_ALEN);
+		} else
+			memset(&ap_addr->sa_data, 0, ETH_ALEN);
+		return 0;
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
 		ap_addr->sa_family = ARPHRD_ETHER;
 		memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
@@ -486,7 +406,7 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
 
 	rcu_read_lock();
 
-	sta = sta_info_get(local, sdata->u.sta.bssid);
+	sta = sta_info_get(local, sdata->u.mgd.bssid);
 
 	if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS))
 		rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate;
@@ -687,8 +607,7 @@ static int ieee80211_ioctl_siwmlme(struct net_device *dev,
 	struct iw_mlme *mlme = (struct iw_mlme *) extra;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-	    sdata->vif.type != NL80211_IFTYPE_ADHOC)
+	if (!(sdata->vif.type == NL80211_IFTYPE_STATION))
 		return -EINVAL;
 
 	switch (mlme->cmd) {
@@ -784,8 +703,7 @@ static int ieee80211_ioctl_giwencode(struct net_device *dev,
 	erq->flags |= IW_ENCODE_ENABLED;
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-		struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-		switch (ifsta->auth_alg) {
+		switch (sdata->u.mgd.auth_alg) {
 		case WLAN_AUTH_OPEN:
 		case WLAN_AUTH_LEAP:
 			erq->flags |= IW_ENCODE_OPEN;
@@ -849,7 +767,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 		ret = ieee80211_hw_config(local,
 					  IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
 
-	if (!(sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
+	if (!(sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
 		return ret;
 
 	if (conf->dynamic_ps_timeout > 0 &&
@@ -908,10 +826,10 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (data->value & (IW_AUTH_CIPHER_WEP40 |
 			    IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_TKIP))
-				sdata->u.sta.flags |=
+				sdata->u.mgd.flags |=
 					IEEE80211_STA_TKIP_WEP_USED;
 			else
-				sdata->u.sta.flags &=
+				sdata->u.mgd.flags &=
 					~IEEE80211_STA_TKIP_WEP_USED;
 		}
 		break;
@@ -922,21 +840,20 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 		if (sdata->vif.type != NL80211_IFTYPE_STATION)
 			ret = -EINVAL;
 		else {
-			sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+			sdata->u.mgd.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
 			/*
 			 * Privacy invoked by wpa_supplicant, store the
 			 * value and allow associating to a protected
 			 * network without having a key up front.
 			 */
 			if (data->value)
-				sdata->u.sta.flags |=
+				sdata->u.mgd.flags |=
 					IEEE80211_STA_PRIVACY_INVOKED;
 		}
 		break;
 	case IW_AUTH_80211_AUTH_ALG:
-		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-		    sdata->vif.type == NL80211_IFTYPE_ADHOC)
-			sdata->u.sta.auth_algs = data->value;
+		if (sdata->vif.type == NL80211_IFTYPE_STATION)
+			sdata->u.mgd.auth_algs = data->value;
 		else
 			ret = -EOPNOTSUPP;
 		break;
@@ -945,17 +862,16 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 			ret = -EOPNOTSUPP;
 			break;
 		}
-		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-		    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			switch (data->value) {
 			case IW_AUTH_MFP_DISABLED:
-				sdata->u.sta.mfp = IEEE80211_MFP_DISABLED;
+				sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
 				break;
 			case IW_AUTH_MFP_OPTIONAL:
-				sdata->u.sta.mfp = IEEE80211_MFP_OPTIONAL;
+				sdata->u.mgd.mfp = IEEE80211_MFP_OPTIONAL;
 				break;
 			case IW_AUTH_MFP_REQUIRED:
-				sdata->u.sta.mfp = IEEE80211_MFP_REQUIRED;
+				sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
 				break;
 			default:
 				ret = -EINVAL;
@@ -970,6 +886,21 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
 	return ret;
 }
 
+static u8 ieee80211_get_wstats_flags(struct ieee80211_local *local)
+{
+	u8 wstats_flags = 0;
+
+	wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
+					   IEEE80211_HW_SIGNAL_DBM) ?
+				IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
+	wstats_flags |= local->hw.flags & IEEE80211_HW_NOISE_DBM ?
+				IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
+	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
+		wstats_flags |= IW_QUAL_DBM;
+
+	return wstats_flags;
+}
+
 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
 {
@@ -980,9 +911,9 @@ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev
 
 	rcu_read_lock();
 
-	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		sta = sta_info_get(local, sdata->u.sta.bssid);
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		sta = sta_info_get(local, sdata->u.mgd.bssid);
+
 	if (!sta) {
 		wstats->discard.fragment = 0;
 		wstats->discard.misc = 0;
@@ -1011,9 +942,8 @@ static int ieee80211_ioctl_giwauth(struct net_device *dev,
 
 	switch (data->flags & IW_AUTH_INDEX) {
 	case IW_AUTH_80211_AUTH_ALG:
-		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-		    sdata->vif.type == NL80211_IFTYPE_ADHOC)
-			data->value = sdata->u.sta.auth_algs;
+		if (sdata->vif.type == NL80211_IFTYPE_STATION)
+			data->value = sdata->u.mgd.auth_algs;
 		else
 			ret = -EOPNOTSUPP;
 		break;
@@ -1116,7 +1046,7 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* SIOCSIWSENS */
 	(iw_handler) NULL,				/* SIOCGIWSENS */
 	(iw_handler) NULL /* not used */,		/* SIOCSIWRANGE */
-	(iw_handler) ieee80211_ioctl_giwrange,		/* SIOCGIWRANGE */
+	(iw_handler) cfg80211_wext_giwrange,		/* SIOCGIWRANGE */
 	(iw_handler) NULL /* not used */,		/* SIOCSIWPRIV */
 	(iw_handler) NULL /* kernel code */,		/* SIOCGIWPRIV */
 	(iw_handler) NULL /* not used */,		/* SIOCSIWSTATS */
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index ac71b38f7cb..093a4ab7f28 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -114,9 +114,7 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 {
 	struct ieee80211_master_priv *mpriv = netdev_priv(dev);
 	struct ieee80211_local *local = mpriv->local;
-	struct ieee80211_hw *hw = &local->hw;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct sta_info *sta;
 	u16 queue;
 	u8 tid;
 
@@ -124,29 +122,11 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 	if (unlikely(queue >= local->hw.queues))
 		queue = local->hw.queues - 1;
 
-	if (skb->requeue) {
-		if (!hw->ampdu_queues)
-			return queue;
-
-		rcu_read_lock();
-		sta = sta_info_get(local, hdr->addr1);
-		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
-		if (sta) {
-			int ampdu_queue = sta->tid_to_tx_q[tid];
-
-			if ((ampdu_queue < ieee80211_num_queues(hw)) &&
-			    test_bit(ampdu_queue, local->queue_pool))
-				queue = ampdu_queue;
-		}
-		rcu_read_unlock();
-
-		return queue;
-	}
-
-	/* Now we know the 1d priority, fill in the QoS header if
-	 * there is one.
+	/*
+	 * Now we know the 1d priority, fill in the QoS header if
+	 * there is one (and we haven't done this before).
 	 */
-	if (ieee80211_is_data_qos(hdr->frame_control)) {
+	if (!skb->requeue && ieee80211_is_data_qos(hdr->frame_control)) {
 		u8 *p = ieee80211_get_qos_ctl(hdr);
 		u8 ack_policy = 0;
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
@@ -156,140 +136,7 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 		/* qos header is 2 bytes, second reserved */
 		*p++ = ack_policy | tid;
 		*p = 0;
-
-		if (!hw->ampdu_queues)
-			return queue;
-
-		rcu_read_lock();
-
-		sta = sta_info_get(local, hdr->addr1);
-		if (sta) {
-			int ampdu_queue = sta->tid_to_tx_q[tid];
-
-			if ((ampdu_queue < ieee80211_num_queues(hw)) &&
-			    test_bit(ampdu_queue, local->queue_pool))
-				queue = ampdu_queue;
-		}
-
-		rcu_read_unlock();
 	}
 
 	return queue;
 }
-
-int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
-			       struct sta_info *sta, u16 tid)
-{
-	int i;
-
-	/* XXX: currently broken due to cb/requeue use */
-	return -EPERM;
-
-	/* prepare the filter and save it for the SW queue
-	 * matching the received HW queue */
-
-	if (!local->hw.ampdu_queues)
-		return -EPERM;
-
-	/* try to get a Qdisc from the pool */
-	for (i = local->hw.queues; i < ieee80211_num_queues(&local->hw); i++)
-		if (!test_and_set_bit(i, local->queue_pool)) {
-			ieee80211_stop_queue(local_to_hw(local), i);
-			sta->tid_to_tx_q[tid] = i;
-
-			/* IF there are already pending packets
-			 * on this tid first we need to drain them
-			 * on the previous queue
-			 * since HT is strict in order */
-#ifdef CONFIG_MAC80211_HT_DEBUG
-			if (net_ratelimit())
-				printk(KERN_DEBUG "allocated aggregation queue"
-					" %d tid %d addr %pM pool=0x%lX\n",
-					i, tid, sta->sta.addr,
-					local->queue_pool[0]);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-			return 0;
-		}
-
-	return -EAGAIN;
-}
-
-/**
- * the caller needs to hold netdev_get_tx_queue(local->mdev, X)->lock
- */
-void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
-				   struct sta_info *sta, u16 tid,
-				   u8 requeue)
-{
-	int agg_queue = sta->tid_to_tx_q[tid];
-	struct ieee80211_hw *hw = &local->hw;
-
-	/* return the qdisc to the pool */
-	clear_bit(agg_queue, local->queue_pool);
-	sta->tid_to_tx_q[tid] = ieee80211_num_queues(hw);
-
-	if (requeue) {
-		ieee80211_requeue(local, agg_queue);
-	} else {
-		struct netdev_queue *txq;
-		spinlock_t *root_lock;
-		struct Qdisc *q;
-
-		txq = netdev_get_tx_queue(local->mdev, agg_queue);
-		q = rcu_dereference(txq->qdisc);
-		root_lock = qdisc_lock(q);
-
-		spin_lock_bh(root_lock);
-		qdisc_reset(q);
-		spin_unlock_bh(root_lock);
-	}
-}
-
-void ieee80211_requeue(struct ieee80211_local *local, int queue)
-{
-	struct netdev_queue *txq = netdev_get_tx_queue(local->mdev, queue);
-	struct sk_buff_head list;
-	spinlock_t *root_lock;
-	struct Qdisc *qdisc;
-	u32 len;
-
-	rcu_read_lock_bh();
-
-	qdisc = rcu_dereference(txq->qdisc);
-	if (!qdisc || !qdisc->dequeue)
-		goto out_unlock;
-
-	skb_queue_head_init(&list);
-
-	root_lock = qdisc_root_lock(qdisc);
-	spin_lock(root_lock);
-	for (len = qdisc->q.qlen; len > 0; len--) {
-		struct sk_buff *skb = qdisc->dequeue(qdisc);
-
-		if (skb)
-			__skb_queue_tail(&list, skb);
-	}
-	spin_unlock(root_lock);
-
-	for (len = list.qlen; len > 0; len--) {
-		struct sk_buff *skb = __skb_dequeue(&list);
-		u16 new_queue;
-
-		BUG_ON(!skb);
-		new_queue = ieee80211_select_queue(local->mdev, skb);
-		skb_set_queue_mapping(skb, new_queue);
-
-		txq = netdev_get_tx_queue(local->mdev, new_queue);
-
-
-		qdisc = rcu_dereference(txq->qdisc);
-		root_lock = qdisc_root_lock(qdisc);
-
-		spin_lock(root_lock);
-		qdisc_enqueue_root(skb, qdisc);
-		spin_unlock(root_lock);
-	}
-
-out_unlock:
-	rcu_read_unlock_bh();
-}
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index bc62f28a4d3..7520d2e014d 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -21,11 +21,5 @@
 extern const int ieee802_1d_to_ac[8];
 
 u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb);
-int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
-			       struct sta_info *sta, u16 tid);
-void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
-				   struct sta_info *sta, u16 tid,
-				   u8 requeue);
-void ieee80211_requeue(struct ieee80211_local *local, int queue);
 
 #endif /* _WME_H */
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 0668b2bfc1d..dd7f222919f 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -7,7 +7,6 @@
 #include <linux/if.h>
 #include <linux/module.h>
 #include <linux/err.h>
-#include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/nl80211.h>
 #include <linux/debugfs.h>
@@ -31,18 +30,29 @@ MODULE_DESCRIPTION("wireless configuration support");
  * only read the list, and that can happen quite
  * often because we need to do it for each command */
 LIST_HEAD(cfg80211_drv_list);
-DEFINE_MUTEX(cfg80211_drv_mutex);
+
+/*
+ * This is used to protect the cfg80211_drv_list, cfg80211_regdomain,
+ * country_ie_regdomain, the reg_beacon_list and the the last regulatory
+ * request receipt (last_request).
+ */
+DEFINE_MUTEX(cfg80211_mutex);
 
 /* for debugfs */
 static struct dentry *ieee80211_debugfs_dir;
 
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
+/* requires cfg80211_mutex to be held! */
+struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx)
 {
 	struct cfg80211_registered_device *result = NULL, *drv;
 
+	if (!wiphy_idx_valid(wiphy_idx))
+		return NULL;
+
+	assert_cfg80211_lock();
+
 	list_for_each_entry(drv, &cfg80211_drv_list, list) {
-		if (drv->idx == wiphy) {
+		if (drv->wiphy_idx == wiphy_idx) {
 			result = drv;
 			break;
 		}
@@ -51,17 +61,44 @@ static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
 	return result;
 }
 
+int get_wiphy_idx(struct wiphy *wiphy)
+{
+	struct cfg80211_registered_device *drv;
+	if (!wiphy)
+		return WIPHY_IDX_STALE;
+	drv = wiphy_to_dev(wiphy);
+	return drv->wiphy_idx;
+}
+
 /* requires cfg80211_drv_mutex to be held! */
+struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx)
+{
+	struct cfg80211_registered_device *drv;
+
+	if (!wiphy_idx_valid(wiphy_idx))
+		return NULL;
+
+	assert_cfg80211_lock();
+
+	drv = cfg80211_drv_by_wiphy_idx(wiphy_idx);
+	if (!drv)
+		return NULL;
+	return &drv->wiphy;
+}
+
+/* requires cfg80211_mutex to be held! */
 static struct cfg80211_registered_device *
 __cfg80211_drv_from_info(struct genl_info *info)
 {
 	int ifindex;
-	struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
+	struct cfg80211_registered_device *bywiphyidx = NULL, *byifidx = NULL;
 	struct net_device *dev;
 	int err = -EINVAL;
 
+	assert_cfg80211_lock();
+
 	if (info->attrs[NL80211_ATTR_WIPHY]) {
-		bywiphy = cfg80211_drv_by_wiphy(
+		bywiphyidx = cfg80211_drv_by_wiphy_idx(
 				nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
 		err = -ENODEV;
 	}
@@ -78,14 +115,14 @@ __cfg80211_drv_from_info(struct genl_info *info)
 		err = -ENODEV;
 	}
 
-	if (bywiphy && byifidx) {
-		if (bywiphy != byifidx)
+	if (bywiphyidx && byifidx) {
+		if (bywiphyidx != byifidx)
 			return ERR_PTR(-EINVAL);
 		else
-			return bywiphy; /* == byifidx */
+			return bywiphyidx; /* == byifidx */
 	}
-	if (bywiphy)
-		return bywiphy;
+	if (bywiphyidx)
+		return bywiphyidx;
 
 	if (byifidx)
 		return byifidx;
@@ -98,7 +135,7 @@ cfg80211_get_dev_from_info(struct genl_info *info)
 {
 	struct cfg80211_registered_device *drv;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 	drv = __cfg80211_drv_from_info(info);
 
 	/* if it is not an error we grab the lock on
@@ -107,7 +144,7 @@ cfg80211_get_dev_from_info(struct genl_info *info)
 	if (!IS_ERR(drv))
 		mutex_lock(&drv->mtx);
 
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 
 	return drv;
 }
@@ -118,7 +155,7 @@ cfg80211_get_dev_from_ifindex(int ifindex)
 	struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
 	struct net_device *dev;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 	dev = dev_get_by_index(&init_net, ifindex);
 	if (!dev)
 		goto out;
@@ -129,7 +166,7 @@ cfg80211_get_dev_from_ifindex(int ifindex)
 		drv = ERR_PTR(-ENODEV);
 	dev_put(dev);
  out:
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 	return drv;
 }
 
@@ -143,16 +180,16 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 			char *newname)
 {
 	struct cfg80211_registered_device *drv;
-	int idx, taken = -1, result, digits;
+	int wiphy_idx, taken = -1, result, digits;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 
 	/* prohibit calling the thing phy%d when %d is not its number */
-	sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
-	if (taken == strlen(newname) && idx != rdev->idx) {
-		/* count number of places needed to print idx */
+	sscanf(newname, PHY_NAME "%d%n", &wiphy_idx, &taken);
+	if (taken == strlen(newname) && wiphy_idx != rdev->wiphy_idx) {
+		/* count number of places needed to print wiphy_idx */
 		digits = 1;
-		while (idx /= 10)
+		while (wiphy_idx /= 10)
 			digits++;
 		/*
 		 * deny the name if it is phy<idx> where <idx> is printed
@@ -193,7 +230,7 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 
 	result = 0;
 out_unlock:
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 	if (result == 0)
 		nl80211_notify_dev_rename(rdev);
 
@@ -220,22 +257,22 @@ struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
 
 	drv->ops = ops;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 
-	drv->idx = wiphy_counter++;
+	drv->wiphy_idx = wiphy_counter++;
 
-	if (unlikely(drv->idx < 0)) {
+	if (unlikely(!wiphy_idx_valid(drv->wiphy_idx))) {
 		wiphy_counter--;
-		mutex_unlock(&cfg80211_drv_mutex);
+		mutex_unlock(&cfg80211_mutex);
 		/* ugh, wrapped! */
 		kfree(drv);
 		return NULL;
 	}
 
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 
 	/* give it a proper name */
-	dev_set_name(&drv->wiphy.dev, PHY_NAME "%d", drv->idx);
+	dev_set_name(&drv->wiphy.dev, PHY_NAME "%d", drv->wiphy_idx);
 
 	mutex_init(&drv->mtx);
 	mutex_init(&drv->devlist_mtx);
@@ -310,7 +347,7 @@ int wiphy_register(struct wiphy *wiphy)
 	/* check and set up bitrates */
 	ieee80211_set_bitrate_flags(wiphy);
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 
 	/* set up regulatory info */
 	wiphy_update_regulatory(wiphy, REGDOM_SET_BY_CORE);
@@ -330,7 +367,7 @@ int wiphy_register(struct wiphy *wiphy)
 
 	res = 0;
 out_unlock:
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 	return res;
 }
 EXPORT_SYMBOL(wiphy_register);
@@ -340,7 +377,7 @@ void wiphy_unregister(struct wiphy *wiphy)
 	struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
 
 	/* protect the device list */
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 
 	BUG_ON(!list_empty(&drv->netdev_list));
 
@@ -366,7 +403,7 @@ void wiphy_unregister(struct wiphy *wiphy)
 	device_del(&drv->wiphy.dev);
 	debugfs_remove(drv->wiphy.debugfsdir);
 
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 }
 EXPORT_SYMBOL(wiphy_unregister);
 
diff --git a/net/wireless/core.h b/net/wireless/core.h
index e29ad4cd464..f6c53f5807f 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -10,6 +10,7 @@
 #include <linux/netdevice.h>
 #include <linux/kref.h>
 #include <linux/rbtree.h>
+#include <linux/mutex.h>
 #include <net/genetlink.h>
 #include <net/wireless.h>
 #include <net/cfg80211.h>
@@ -37,7 +38,7 @@ struct cfg80211_registered_device {
 	enum environment_cap env;
 
 	/* wiphy index, internal only */
-	int idx;
+	int wiphy_idx;
 
 	/* associate netdev list */
 	struct mutex devlist_mtx;
@@ -49,6 +50,7 @@ struct cfg80211_registered_device {
 	struct rb_root bss_tree;
 	u32 bss_generation;
 	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
+	unsigned long suspend_at;
 
 	/* must be last because of the way we do wiphy_priv(),
 	 * and it should at least be aligned to NETDEV_ALIGN */
@@ -62,9 +64,27 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
 	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
 }
 
-extern struct mutex cfg80211_drv_mutex;
+/* Note 0 is valid, hence phy0 */
+static inline
+bool wiphy_idx_valid(int wiphy_idx)
+{
+	return (wiphy_idx >= 0);
+}
+
+extern struct mutex cfg80211_mutex;
 extern struct list_head cfg80211_drv_list;
 
+static inline void assert_cfg80211_lock(void)
+{
+	WARN_ON(!mutex_is_locked(&cfg80211_mutex));
+}
+
+/*
+ * You can use this to mark a wiphy_idx as not having an associated wiphy.
+ * It guarantees cfg80211_drv_by_wiphy_idx(wiphy_idx) will return NULL
+ */
+#define WIPHY_IDX_STALE -1
+
 struct cfg80211_internal_bss {
 	struct list_head list;
 	struct rb_node rbn;
@@ -74,6 +94,9 @@ struct cfg80211_internal_bss {
 	struct cfg80211_bss pub;
 };
 
+struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx);
+int get_wiphy_idx(struct wiphy *wiphy);
+
 /*
  * This function returns a pointer to the driver
  * that the genl_info item that is passed refers to.
@@ -81,13 +104,13 @@ struct cfg80211_internal_bss {
  * the driver's mutex!
  *
  * This means that you need to call cfg80211_put_dev()
- * before being allowed to acquire &cfg80211_drv_mutex!
+ * before being allowed to acquire &cfg80211_mutex!
  *
  * This is necessary because we need to lock the global
  * mutex to get an item off the list safely, and then
  * we lock the drv mutex so it doesn't go away under us.
  *
- * We don't want to keep cfg80211_drv_mutex locked
+ * We don't want to keep cfg80211_mutex locked
  * for all the time in order to allow requests on
  * other interfaces to go through at the same time.
  *
@@ -97,6 +120,9 @@ struct cfg80211_internal_bss {
 extern struct cfg80211_registered_device *
 cfg80211_get_dev_from_info(struct genl_info *info);
 
+/* requires cfg80211_drv_mutex to be held! */
+struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
+
 /* identical to cfg80211_get_dev_from_info but only operate on ifindex */
 extern struct cfg80211_registered_device *
 cfg80211_get_dev_from_ifindex(int ifindex);
@@ -113,5 +139,7 @@ void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
 void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby);
 
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
+void cfg80211_bss_age(struct cfg80211_registered_device *dev,
+                      unsigned long age_secs);
 
 #endif /* __NET_WIRELESS_CORE_H */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 298a4de5994..531bb67cf50 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -7,7 +7,6 @@
 #include <linux/if.h>
 #include <linux/module.h>
 #include <linux/err.h>
-#include <linux/mutex.h>
 #include <linux/list.h>
 #include <linux/if_ether.h>
 #include <linux/ieee80211.h>
@@ -142,7 +141,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	if (!hdr)
 		return -1;
 
-	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
 	NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
 	NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
 		   dev->wiphy.max_scan_ssids);
@@ -256,7 +255,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 	int start = cb->args[0];
 	struct cfg80211_registered_device *dev;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 	list_for_each_entry(dev, &cfg80211_drv_list, list) {
 		if (++idx <= start)
 			continue;
@@ -267,7 +266,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 			break;
 		}
 	}
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 
 	cb->args[0] = idx;
 
@@ -470,7 +469,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 	struct cfg80211_registered_device *dev;
 	struct wireless_dev *wdev;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 	list_for_each_entry(dev, &cfg80211_drv_list, list) {
 		if (wp_idx < wp_start) {
 			wp_idx++;
@@ -497,7 +496,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 		wp_idx++;
 	}
  out:
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 
 	cb->args[0] = wp_idx;
 	cb->args[1] = if_idx;
@@ -1206,6 +1205,12 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
 
 		nla_nest_end(msg, txrate);
 	}
+	if (sinfo->filled & STATION_INFO_RX_PACKETS)
+		NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
+			    sinfo->rx_packets);
+	if (sinfo->filled & STATION_INFO_TX_PACKETS)
+		NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
+			    sinfo->tx_packets);
 	nla_nest_end(msg, sinfoattr);
 
 	return genlmsg_end(msg, hdr);
@@ -1900,6 +1905,19 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
 	int r;
 	char *data = NULL;
 
+	/*
+	 * You should only get this when cfg80211 hasn't yet initialized
+	 * completely when built-in to the kernel right between the time
+	 * window between nl80211_init() and regulatory_init(), if that is
+	 * even possible.
+	 */
+	mutex_lock(&cfg80211_mutex);
+	if (unlikely(!cfg80211_regdomain)) {
+		mutex_unlock(&cfg80211_mutex);
+		return -EINPROGRESS;
+	}
+	mutex_unlock(&cfg80211_mutex);
+
 	if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
 		return -EINVAL;
 
@@ -1910,14 +1928,9 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
 	if (is_world_regdom(data))
 		return -EINVAL;
 #endif
-	mutex_lock(&cfg80211_drv_mutex);
-	r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
-	mutex_unlock(&cfg80211_drv_mutex);
-	/* This means the regulatory domain was already set, however
-	 * we don't want to confuse userspace with a "successful error"
-	 * message so lets just treat it as a success */
-	if (r == -EALREADY)
-		r = 0;
+
+	r = regulatory_hint_user(data);
+
 	return r;
 }
 
@@ -2106,7 +2119,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
 	unsigned int i;
 	int err = -EINVAL;
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 
 	if (!cfg80211_regdomain)
 		goto out;
@@ -2169,7 +2182,7 @@ nla_put_failure:
 	genlmsg_cancel(msg, hdr);
 	err = -EMSGSIZE;
 out:
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 	return err;
 }
 
@@ -2228,9 +2241,9 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
 
 	BUG_ON(rule_idx != num_rules);
 
-	mutex_lock(&cfg80211_drv_mutex);
+	mutex_lock(&cfg80211_mutex);
 	r = set_regdom(rd);
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 	return r;
 
  bad_reg:
@@ -2286,6 +2299,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	struct wiphy *wiphy;
 	int err, tmp, n_ssids = 0, n_channels = 0, i;
 	enum ieee80211_band band;
+	size_t ie_len;
 
 	err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
 	if (err)
@@ -2327,9 +2341,15 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 		goto out_unlock;
 	}
 
+	if (info->attrs[NL80211_ATTR_IE])
+		ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+	else
+		ie_len = 0;
+
 	request = kzalloc(sizeof(*request)
 			+ sizeof(*ssid) * n_ssids
-			+ sizeof(channel) * n_channels, GFP_KERNEL);
+			+ sizeof(channel) * n_channels
+			+ ie_len, GFP_KERNEL);
 	if (!request) {
 		err = -ENOMEM;
 		goto out_unlock;
@@ -2340,6 +2360,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 	if (n_ssids)
 		request->ssids = (void *)(request->channels + n_channels);
 	request->n_ssids = n_ssids;
+	if (ie_len) {
+		if (request->ssids)
+			request->ie = (void *)(request->ssids + n_ssids);
+		else
+			request->ie = (void *)(request->channels + n_channels);
+	}
 
 	if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
 		/* user specified, bail out if channel not found */
@@ -2380,6 +2406,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
+	if (info->attrs[NL80211_ATTR_IE]) {
+		request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+		memcpy(request->ie, nla_data(info->attrs[NL80211_ATTR_IE]),
+		       request->ie_len);
+	}
+
 	request->ifidx = dev->ifindex;
 	request->wiphy = &drv->wiphy;
 
@@ -2432,7 +2464,7 @@ static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
 	NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
 
-	switch (res->signal_type) {
+	switch (rdev->wiphy.signal_type) {
 	case CFG80211_SIGNAL_TYPE_MBM:
 		NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
 		break;
@@ -2601,7 +2633,6 @@ static struct genl_ops nl80211_ops[] = {
 		.doit = nl80211_get_station,
 		.dumpit = nl80211_dump_station,
 		.policy = nl80211_policy,
-		.flags = GENL_ADMIN_PERM,
 	},
 	{
 		.cmd = NL80211_CMD_SET_STATION,
@@ -2739,7 +2770,7 @@ static int nl80211_send_scan_donemsg(struct sk_buff *msg,
 	if (!hdr)
 		return -1;
 
-	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
 
 	/* XXX: we should probably bounce back the request? */
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index b565a5f84e9..69787b62136 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -27,6 +27,10 @@ static inline void
 nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 		       struct net_device *netdev)
 {}
+static inline void nl80211_send_scan_aborted(
+					struct cfg80211_registered_device *rdev,
+					struct net_device *netdev)
+{}
 #endif /* CONFIG_NL80211 */
 
 #endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 2323644330c..ce66bfdf57e 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -54,22 +54,52 @@ static u32 supported_bandwidths[] = {
 	MHZ_TO_KHZ(20),
 };
 
-/* Central wireless core regulatory domains, we only need two,
+/*
+ * Central wireless core regulatory domains, we only need two,
  * the current one and a world regulatory domain in case we have no
- * information to give us an alpha2 */
+ * information to give us an alpha2
+ */
 const struct ieee80211_regdomain *cfg80211_regdomain;
 
-/* We use this as a place for the rd structure built from the
+/*
+ * We use this as a place for the rd structure built from the
  * last parsed country IE to rest until CRDA gets back to us with
- * what it thinks should apply for the same country */
+ * what it thinks should apply for the same country
+ */
 static const struct ieee80211_regdomain *country_ie_regdomain;
 
+/* Used to queue up regulatory hints */
+static LIST_HEAD(reg_requests_list);
+static spinlock_t reg_requests_lock;
+
+/* Used to queue up beacon hints for review */
+static LIST_HEAD(reg_pending_beacons);
+static spinlock_t reg_pending_beacons_lock;
+
+/* Used to keep track of processed beacon hints */
+static LIST_HEAD(reg_beacon_list);
+
+struct reg_beacon {
+	struct list_head list;
+	struct ieee80211_channel chan;
+};
+
 /* We keep a static world regulatory domain in case of the absence of CRDA */
 static const struct ieee80211_regdomain world_regdom = {
-	.n_reg_rules = 1,
+	.n_reg_rules = 3,
 	.alpha2 =  "00",
 	.reg_rules = {
-		REG_RULE(2412-10, 2462+10, 40, 6, 20,
+		/* IEEE 802.11b/g, channels 1..11 */
+		REG_RULE(2412-10, 2462+10, 40, 6, 20, 0),
+		/* IEEE 802.11a, channel 36..48 */
+		REG_RULE(5180-10, 5240+10, 40, 6, 23,
+			NL80211_RRF_PASSIVE_SCAN |
+			NL80211_RRF_NO_IBSS),
+
+		/* NB: 5260 MHz - 5700 MHz requies DFS */
+
+		/* IEEE 802.11a, channel 149..165 */
+		REG_RULE(5745-10, 5825+10, 40, 6, 23,
 			NL80211_RRF_PASSIVE_SCAN |
 			NL80211_RRF_NO_IBSS),
 	}
@@ -83,9 +113,11 @@ static char *ieee80211_regdom = "US";
 module_param(ieee80211_regdom, charp, 0444);
 MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
 
-/* We assume 40 MHz bandwidth for the old regulatory work.
+/*
+ * We assume 40 MHz bandwidth for the old regulatory work.
  * We make emphasis we are using the exact same frequencies
- * as before */
+ * as before
+ */
 
 static const struct ieee80211_regdomain us_regdom = {
 	.n_reg_rules = 6,
@@ -124,8 +156,10 @@ static const struct ieee80211_regdomain jp_regdom = {
 
 static const struct ieee80211_regdomain eu_regdom = {
 	.n_reg_rules = 6,
-	/* This alpha2 is bogus, we leave it here just for stupid
-	 * backward compatibility */
+	/*
+	 * This alpha2 is bogus, we leave it here just for stupid
+	 * backward compatibility
+	 */
 	.alpha2 =  "EU",
 	.reg_rules = {
 		/* IEEE 802.11b/g, channels 1..13 */
@@ -194,8 +228,10 @@ static void reset_regdomains(void)
 	cfg80211_regdomain = NULL;
 }
 
-/* Dynamic world regulatory domain requested by the wireless
- * core upon initialization */
+/*
+ * Dynamic world regulatory domain requested by the wireless
+ * core upon initialization
+ */
 static void update_world_regdomain(const struct ieee80211_regdomain *rd)
 {
 	BUG_ON(!last_request);
@@ -236,8 +272,10 @@ static bool is_unknown_alpha2(const char *alpha2)
 {
 	if (!alpha2)
 		return false;
-	/* Special case where regulatory domain was built by driver
-	 * but a specific alpha2 cannot be determined */
+	/*
+	 * Special case where regulatory domain was built by driver
+	 * but a specific alpha2 cannot be determined
+	 */
 	if (alpha2[0] == '9' && alpha2[1] == '9')
 		return true;
 	return false;
@@ -247,9 +285,11 @@ static bool is_intersected_alpha2(const char *alpha2)
 {
 	if (!alpha2)
 		return false;
-	/* Special case where regulatory domain is the
+	/*
+	 * Special case where regulatory domain is the
 	 * result of an intersection between two regulatory domain
-	 * structures */
+	 * structures
+	 */
 	if (alpha2[0] == '9' && alpha2[1] == '8')
 		return true;
 	return false;
@@ -274,8 +314,10 @@ static bool alpha2_equal(const char *alpha2_x, const char *alpha2_y)
 	return false;
 }
 
-static bool regdom_changed(const char *alpha2)
+static bool regdom_changes(const char *alpha2)
 {
+	assert_cfg80211_lock();
+
 	if (!cfg80211_regdomain)
 		return true;
 	if (alpha2_equal(cfg80211_regdomain->alpha2, alpha2))
@@ -302,8 +344,10 @@ static bool country_ie_integrity_changes(u32 checksum)
 	return false;
 }
 
-/* This lets us keep regulatory code which is updated on a regulatory
- * basis in userspace. */
+/*
+ * This lets us keep regulatory code which is updated on a regulatory
+ * basis in userspace.
+ */
 static int call_crda(const char *alpha2)
 {
 	char country_env[9 + 2] = "COUNTRY=";
@@ -414,10 +458,12 @@ static bool freq_in_rule_band(const struct ieee80211_freq_range *freq_range,
 #undef ONE_GHZ_IN_KHZ
 }
 
-/* Converts a country IE to a regulatory domain. A regulatory domain
+/*
+ * Converts a country IE to a regulatory domain. A regulatory domain
  * structure has a lot of information which the IE doesn't yet have,
  * so for the other values we use upper max values as we will intersect
- * with our userspace regulatory agent to get lower bounds. */
+ * with our userspace regulatory agent to get lower bounds.
+ */
 static struct ieee80211_regdomain *country_ie_2_rd(
 				u8 *country_ie,
 				u8 country_ie_len,
@@ -462,9 +508,11 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 
 	*checksum ^= ((flags ^ alpha2[0] ^ alpha2[1]) << 8);
 
-	/* We need to build a reg rule for each triplet, but first we must
+	/*
+	 * We need to build a reg rule for each triplet, but first we must
 	 * calculate the number of reg rules we will need. We will need one
-	 * for each channel subband */
+	 * for each channel subband
+	 */
 	while (country_ie_len >= 3) {
 		int end_channel = 0;
 		struct ieee80211_country_ie_triplet *triplet =
@@ -502,9 +550,11 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 		if (cur_sub_max_channel < cur_channel)
 			return NULL;
 
-		/* Do not allow overlapping channels. Also channels
+		/*
+		 * Do not allow overlapping channels. Also channels
 		 * passed in each subband must be monotonically
-		 * increasing */
+		 * increasing
+		 */
 		if (last_sub_max_channel) {
 			if (cur_channel <= last_sub_max_channel)
 				return NULL;
@@ -512,10 +562,12 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 				return NULL;
 		}
 
-		/* When dot11RegulatoryClassesRequired is supported
+		/*
+		 * When dot11RegulatoryClassesRequired is supported
 		 * we can throw ext triplets as part of this soup,
 		 * for now we don't care when those change as we
-		 * don't support them */
+		 * don't support them
+		 */
 		*checksum ^= ((cur_channel ^ cur_sub_max_channel) << 8) |
 		  ((cur_sub_max_channel ^ cur_sub_max_channel) << 16) |
 		  ((triplet->chans.max_power ^ cur_sub_max_channel) << 24);
@@ -526,8 +578,10 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 		country_ie_len -= 3;
 		num_rules++;
 
-		/* Note: this is not a IEEE requirement but
-		 * simply a memory requirement */
+		/*
+		 * Note: this is not a IEEE requirement but
+		 * simply a memory requirement
+		 */
 		if (num_rules > NL80211_MAX_SUPP_REG_RULES)
 			return NULL;
 	}
@@ -555,8 +609,10 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 		struct ieee80211_freq_range *freq_range = NULL;
 		struct ieee80211_power_rule *power_rule = NULL;
 
-		/* Must parse if dot11RegulatoryClassesRequired is true,
-		 * we don't support this yet */
+		/*
+		 * Must parse if dot11RegulatoryClassesRequired is true,
+		 * we don't support this yet
+		 */
 		if (triplet->ext.reg_extension_id >=
 				IEEE80211_COUNTRY_EXTENSION_ID) {
 			country_ie += 3;
@@ -578,10 +634,12 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 			end_channel =  triplet->chans.first_channel +
 				(4 * (triplet->chans.num_channels - 1));
 
-		/* The +10 is since the regulatory domain expects
+		/*
+		 * The +10 is since the regulatory domain expects
 		 * the actual band edge, not the center of freq for
 		 * its start and end freqs, assuming 20 MHz bandwidth on
-		 * the channels passed */
+		 * the channels passed
+		 */
 		freq_range->start_freq_khz =
 			MHZ_TO_KHZ(ieee80211_channel_to_frequency(
 				triplet->chans.first_channel) - 10);
@@ -589,9 +647,11 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 			MHZ_TO_KHZ(ieee80211_channel_to_frequency(
 				end_channel) + 10);
 
-		/* Large arbitrary values, we intersect later */
-		/* Increment this if we ever support >= 40 MHz channels
-		 * in IEEE 802.11 */
+		/*
+		 * These are large arbitrary values we use to intersect later.
+		 * Increment this if we ever support >= 40 MHz channels
+		 * in IEEE 802.11
+		 */
 		freq_range->max_bandwidth_khz = MHZ_TO_KHZ(40);
 		power_rule->max_antenna_gain = DBI_TO_MBI(100);
 		power_rule->max_eirp = DBM_TO_MBM(100);
@@ -607,8 +667,10 @@ static struct ieee80211_regdomain *country_ie_2_rd(
 }
 
 
-/* Helper for regdom_intersect(), this does the real
- * mathematical intersection fun */
+/*
+ * Helper for regdom_intersect(), this does the real
+ * mathematical intersection fun
+ */
 static int reg_rules_intersect(
 	const struct ieee80211_reg_rule *rule1,
 	const struct ieee80211_reg_rule *rule2,
@@ -686,11 +748,13 @@ static struct ieee80211_regdomain *regdom_intersect(
 	if (!rd1 || !rd2)
 		return NULL;
 
-	/* First we get a count of the rules we'll need, then we actually
+	/*
+	 * First we get a count of the rules we'll need, then we actually
 	 * build them. This is to so we can malloc() and free() a
 	 * regdomain once. The reason we use reg_rules_intersect() here
 	 * is it will return -EINVAL if the rule computed makes no sense.
-	 * All rules that do check out OK are valid. */
+	 * All rules that do check out OK are valid.
+	 */
 
 	for (x = 0; x < rd1->n_reg_rules; x++) {
 		rule1 = &rd1->reg_rules[x];
@@ -718,14 +782,18 @@ static struct ieee80211_regdomain *regdom_intersect(
 		rule1 = &rd1->reg_rules[x];
 		for (y = 0; y < rd2->n_reg_rules; y++) {
 			rule2 = &rd2->reg_rules[y];
-			/* This time around instead of using the stack lets
+			/*
+			 * This time around instead of using the stack lets
 			 * write to the target rule directly saving ourselves
-			 * a memcpy() */
+			 * a memcpy()
+			 */
 			intersected_rule = &rd->reg_rules[rule_idx];
 			r = reg_rules_intersect(rule1, rule2,
 				intersected_rule);
-			/* No need to memset here the intersected rule here as
-			 * we're not using the stack anymore */
+			/*
+			 * No need to memset here the intersected rule here as
+			 * we're not using the stack anymore
+			 */
 			if (r)
 				continue;
 			rule_idx++;
@@ -744,8 +812,10 @@ static struct ieee80211_regdomain *regdom_intersect(
 	return rd;
 }
 
-/* XXX: add support for the rest of enum nl80211_reg_rule_flags, we may
- * want to just have the channel structure use these */
+/*
+ * XXX: add support for the rest of enum nl80211_reg_rule_flags, we may
+ * want to just have the channel structure use these
+ */
 static u32 map_regdom_flags(u32 rd_flags)
 {
 	u32 channel_flags = 0;
@@ -771,8 +841,10 @@ static int freq_reg_info_regd(struct wiphy *wiphy,
 
 	regd = custom_regd ? custom_regd : cfg80211_regdomain;
 
-	/* Follow the driver's regulatory domain, if present, unless a country
-	 * IE has been processed or a user wants to help complaince further */
+	/*
+	 * Follow the driver's regulatory domain, if present, unless a country
+	 * IE has been processed or a user wants to help complaince further
+	 */
 	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
 	    last_request->initiator != REGDOM_SET_BY_USER &&
 	    wiphy->regd)
@@ -790,9 +862,11 @@ static int freq_reg_info_regd(struct wiphy *wiphy,
 		fr = &rr->freq_range;
 		pr = &rr->power_rule;
 
-		/* We only need to know if one frequency rule was
+		/*
+		 * We only need to know if one frequency rule was
 		 * was in center_freq's band, that's enough, so lets
-		 * not overwrite it once found */
+		 * not overwrite it once found
+		 */
 		if (!band_rule_found)
 			band_rule_found = freq_in_rule_band(fr, center_freq);
 
@@ -829,6 +903,11 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 	const struct ieee80211_power_rule *power_rule = NULL;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
+	struct wiphy *request_wiphy = NULL;
+
+	assert_cfg80211_lock();
+
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
 
 	sband = wiphy->bands[band];
 	BUG_ON(chan_idx >= sband->n_channels);
@@ -840,7 +919,8 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 		&max_bandwidth, &reg_rule);
 
 	if (r) {
-		/* This means no regulatory rule was found in the country IE
+		/*
+		 * This means no regulatory rule was found in the country IE
 		 * with a frequency range on the center_freq's band, since
 		 * IEEE-802.11 allows for a country IE to have a subset of the
 		 * regulatory information provided in a country we ignore
@@ -859,8 +939,10 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 				chan->center_freq, wiphy_name(wiphy));
 #endif
 		} else {
-		/* In this case we know the country IE has at least one reg rule
-		 * for the band so we respect its band definitions */
+		/*
+		 * In this case we know the country IE has at least one reg rule
+		 * for the band so we respect its band definitions
+		 */
 #ifdef CONFIG_CFG80211_REG_DEBUG
 			if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
 				printk(KERN_DEBUG "cfg80211: Disabling "
@@ -877,11 +959,13 @@ static void handle_channel(struct wiphy *wiphy, enum ieee80211_band band,
 	power_rule = &reg_rule->power_rule;
 
 	if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
-	    last_request->wiphy && last_request->wiphy == wiphy &&
-	    last_request->wiphy->strict_regulatory) {
-		/* This gaurantees the driver's requested regulatory domain
+	    request_wiphy && request_wiphy == wiphy &&
+	    request_wiphy->strict_regulatory) {
+		/*
+		 * This gaurantees the driver's requested regulatory domain
 		 * will always be used as a base for further regulatory
-		 * settings */
+		 * settings
+		 */
 		chan->flags = chan->orig_flags =
 			map_regdom_flags(reg_rule->flags);
 		chan->max_antenna_gain = chan->orig_mag =
@@ -922,8 +1006,10 @@ static bool ignore_reg_update(struct wiphy *wiphy, enum reg_set_by setby)
 	if (setby == REGDOM_SET_BY_CORE &&
 		  wiphy->custom_regulatory)
 		return true;
-	/* wiphy->regd will be set once the device has its own
-	 * desired regulatory domain set */
+	/*
+	 * wiphy->regd will be set once the device has its own
+	 * desired regulatory domain set
+	 */
 	if (wiphy->strict_regulatory && !wiphy->regd &&
 	    !is_world_regdom(last_request->alpha2))
 		return true;
@@ -938,16 +1024,120 @@ static void update_all_wiphy_regulatory(enum reg_set_by setby)
 		wiphy_update_regulatory(&drv->wiphy, setby);
 }
 
+static void handle_reg_beacon(struct wiphy *wiphy,
+			      unsigned int chan_idx,
+			      struct reg_beacon *reg_beacon)
+{
+#ifdef CONFIG_CFG80211_REG_DEBUG
+#define REG_DEBUG_BEACON_FLAG(desc) \
+	printk(KERN_DEBUG "cfg80211: Enabling " desc " on " \
+		"frequency: %d MHz (Ch %d) on %s\n", \
+		reg_beacon->chan.center_freq, \
+		ieee80211_frequency_to_channel(reg_beacon->chan.center_freq), \
+		wiphy_name(wiphy));
+#else
+#define REG_DEBUG_BEACON_FLAG(desc) do {} while (0)
+#endif
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_channel *chan;
+
+	assert_cfg80211_lock();
+
+	sband = wiphy->bands[reg_beacon->chan.band];
+	chan = &sband->channels[chan_idx];
+
+	if (likely(chan->center_freq != reg_beacon->chan.center_freq))
+		return;
+
+	if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
+		chan->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
+		REG_DEBUG_BEACON_FLAG("active scanning");
+	}
+
+	if (chan->flags & IEEE80211_CHAN_NO_IBSS) {
+		chan->flags &= ~IEEE80211_CHAN_NO_IBSS;
+		REG_DEBUG_BEACON_FLAG("beaconing");
+	}
+
+	chan->beacon_found = true;
+#undef REG_DEBUG_BEACON_FLAG
+}
+
+/*
+ * Called when a scan on a wiphy finds a beacon on
+ * new channel
+ */
+static void wiphy_update_new_beacon(struct wiphy *wiphy,
+				    struct reg_beacon *reg_beacon)
+{
+	unsigned int i;
+	struct ieee80211_supported_band *sband;
+
+	assert_cfg80211_lock();
+
+	if (!wiphy->bands[reg_beacon->chan.band])
+		return;
+
+	sband = wiphy->bands[reg_beacon->chan.band];
+
+	for (i = 0; i < sband->n_channels; i++)
+		handle_reg_beacon(wiphy, i, reg_beacon);
+}
+
+/*
+ * Called upon reg changes or a new wiphy is added
+ */
+static void wiphy_update_beacon_reg(struct wiphy *wiphy)
+{
+	unsigned int i;
+	struct ieee80211_supported_band *sband;
+	struct reg_beacon *reg_beacon;
+
+	assert_cfg80211_lock();
+
+	if (list_empty(&reg_beacon_list))
+		return;
+
+	list_for_each_entry(reg_beacon, &reg_beacon_list, list) {
+		if (!wiphy->bands[reg_beacon->chan.band])
+			continue;
+		sband = wiphy->bands[reg_beacon->chan.band];
+		for (i = 0; i < sband->n_channels; i++)
+			handle_reg_beacon(wiphy, i, reg_beacon);
+	}
+}
+
+static bool reg_is_world_roaming(struct wiphy *wiphy)
+{
+	if (is_world_regdom(cfg80211_regdomain->alpha2) ||
+	    (wiphy->regd && is_world_regdom(wiphy->regd->alpha2)))
+		return true;
+	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE &&
+	    wiphy->custom_regulatory)
+		return true;
+	return false;
+}
+
+/* Reap the advantages of previously found beacons */
+static void reg_process_beacons(struct wiphy *wiphy)
+{
+	if (!reg_is_world_roaming(wiphy))
+		return;
+	wiphy_update_beacon_reg(wiphy);
+}
+
 void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby)
 {
 	enum ieee80211_band band;
 
 	if (ignore_reg_update(wiphy, setby))
-		return;
+		goto out;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		if (wiphy->bands[band])
 			handle_band(wiphy, band);
 	}
+out:
+	reg_process_beacons(wiphy);
 	if (wiphy->reg_notifier)
 		wiphy->reg_notifier(wiphy, last_request);
 }
@@ -1033,48 +1223,53 @@ static int reg_copy_regd(const struct ieee80211_regdomain **dst_regd,
 	return 0;
 }
 
-/* Return value which can be used by ignore_request() to indicate
- * it has been determined we should intersect two regulatory domains */
+/*
+ * Return value which can be used by ignore_request() to indicate
+ * it has been determined we should intersect two regulatory domains
+ */
 #define REG_INTERSECT	1
 
 /* This has the logic which determines when a new request
  * should be ignored. */
-static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
-			  const char *alpha2)
+static int ignore_request(struct wiphy *wiphy,
+			  struct regulatory_request *pending_request)
 {
+	struct wiphy *last_wiphy = NULL;
+
+	assert_cfg80211_lock();
+
 	/* All initial requests are respected */
 	if (!last_request)
 		return 0;
 
-	switch (set_by) {
+	switch (pending_request->initiator) {
 	case REGDOM_SET_BY_INIT:
 		return -EINVAL;
 	case REGDOM_SET_BY_CORE:
-		/*
-		 * Always respect new wireless core hints, should only happen
-		 * when updating the world regulatory domain at init.
-		 */
-		return 0;
+		return -EINVAL;
 	case REGDOM_SET_BY_COUNTRY_IE:
-		if (unlikely(!is_an_alpha2(alpha2)))
+
+		last_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
+		if (unlikely(!is_an_alpha2(pending_request->alpha2)))
 			return -EINVAL;
 		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
-			if (last_request->wiphy != wiphy) {
+			if (last_wiphy != wiphy) {
 				/*
 				 * Two cards with two APs claiming different
 				 * different Country IE alpha2s. We could
 				 * intersect them, but that seems unlikely
 				 * to be correct. Reject second one for now.
 				 */
-				if (!alpha2_equal(alpha2,
-						  cfg80211_regdomain->alpha2))
+				if (regdom_changes(pending_request->alpha2))
 					return -EOPNOTSUPP;
 				return -EALREADY;
 			}
-			/* Two consecutive Country IE hints on the same wiphy.
-			 * This should be picked up early by the driver/stack */
-			if (WARN_ON(!alpha2_equal(cfg80211_regdomain->alpha2,
-				  alpha2)))
+			/*
+			 * Two consecutive Country IE hints on the same wiphy.
+			 * This should be picked up early by the driver/stack
+			 */
+			if (WARN_ON(regdom_changes(pending_request->alpha2)))
 				return 0;
 			return -EALREADY;
 		}
@@ -1083,31 +1278,44 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
 		if (last_request->initiator == REGDOM_SET_BY_CORE) {
 			if (is_old_static_regdom(cfg80211_regdomain))
 				return 0;
-			if (!alpha2_equal(cfg80211_regdomain->alpha2, alpha2))
+			if (regdom_changes(pending_request->alpha2))
 				return 0;
 			return -EALREADY;
 		}
+
+		/*
+		 * This would happen if you unplug and plug your card
+		 * back in or if you add a new device for which the previously
+		 * loaded card also agrees on the regulatory domain.
+		 */
+		if (last_request->initiator == REGDOM_SET_BY_DRIVER &&
+		    !regdom_changes(pending_request->alpha2))
+			return -EALREADY;
+
 		return REG_INTERSECT;
 	case REGDOM_SET_BY_USER:
 		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE)
 			return REG_INTERSECT;
-		/* If the user knows better the user should set the regdom
-		 * to their country before the IE is picked up */
+		/*
+		 * If the user knows better the user should set the regdom
+		 * to their country before the IE is picked up
+		 */
 		if (last_request->initiator == REGDOM_SET_BY_USER &&
 			  last_request->intersect)
 			return -EOPNOTSUPP;
-		/* Process user requests only after previous user/driver/core
-		 * requests have been processed */
+		/*
+		 * Process user requests only after previous user/driver/core
+		 * requests have been processed
+		 */
 		if (last_request->initiator == REGDOM_SET_BY_CORE ||
 		    last_request->initiator == REGDOM_SET_BY_DRIVER ||
 		    last_request->initiator == REGDOM_SET_BY_USER) {
-			if (!alpha2_equal(last_request->alpha2,
-			    cfg80211_regdomain->alpha2))
+			if (regdom_changes(last_request->alpha2))
 				return -EAGAIN;
 		}
 
 		if (!is_old_static_regdom(cfg80211_regdomain) &&
-		    alpha2_equal(cfg80211_regdomain->alpha2, alpha2))
+		    !regdom_changes(pending_request->alpha2))
 			return -EALREADY;
 
 		return 0;
@@ -1116,55 +1324,66 @@ static int ignore_request(struct wiphy *wiphy, enum reg_set_by set_by,
 	return -EINVAL;
 }
 
-/* Caller must hold &cfg80211_drv_mutex */
-int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
-			const char *alpha2,
-			u32 country_ie_checksum,
-			enum environment_cap env)
+/**
+ * __regulatory_hint - hint to the wireless core a regulatory domain
+ * @wiphy: if the hint comes from country information from an AP, this
+ *	is required to be set to the wiphy that received the information
+ * @pending_request: the regulatory request currently being processed
+ *
+ * The Wireless subsystem can use this function to hint to the wireless core
+ * what it believes should be the current regulatory domain.
+ *
+ * Returns zero if all went fine, %-EALREADY if a regulatory domain had
+ * already been set or other standard error codes.
+ *
+ * Caller must hold &cfg80211_mutex
+ */
+static int __regulatory_hint(struct wiphy *wiphy,
+			     struct regulatory_request *pending_request)
 {
-	struct regulatory_request *request;
 	bool intersect = false;
 	int r = 0;
 
-	r = ignore_request(wiphy, set_by, alpha2);
+	assert_cfg80211_lock();
+
+	r = ignore_request(wiphy, pending_request);
 
 	if (r == REG_INTERSECT) {
-		if (set_by == REGDOM_SET_BY_DRIVER) {
+		if (pending_request->initiator == REGDOM_SET_BY_DRIVER) {
 			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
-			if (r)
+			if (r) {
+				kfree(pending_request);
 				return r;
+			}
 		}
 		intersect = true;
 	} else if (r) {
-		/* If the regulatory domain being requested by the
+		/*
+		 * If the regulatory domain being requested by the
 		 * driver has already been set just copy it to the
-		 * wiphy */
-		if (r == -EALREADY && set_by == REGDOM_SET_BY_DRIVER) {
+		 * wiphy
+		 */
+		if (r == -EALREADY &&
+		    pending_request->initiator == REGDOM_SET_BY_DRIVER) {
 			r = reg_copy_regd(&wiphy->regd, cfg80211_regdomain);
-			if (r)
+			if (r) {
+				kfree(pending_request);
 				return r;
+			}
 			r = -EALREADY;
 			goto new_request;
 		}
+		kfree(pending_request);
 		return r;
 	}
 
 new_request:
-	request = kzalloc(sizeof(struct regulatory_request),
-			  GFP_KERNEL);
-	if (!request)
-		return -ENOMEM;
+	kfree(last_request);
 
-	request->alpha2[0] = alpha2[0];
-	request->alpha2[1] = alpha2[1];
-	request->initiator = set_by;
-	request->wiphy = wiphy;
-	request->intersect = intersect;
-	request->country_ie_checksum = country_ie_checksum;
-	request->country_ie_env = env;
+	last_request = pending_request;
+	last_request->intersect = intersect;
 
-	kfree(last_request);
-	last_request = request;
+	pending_request = NULL;
 
 	/* When r == REG_INTERSECT we do need to call CRDA */
 	if (r < 0)
@@ -1180,34 +1399,194 @@ new_request:
 	 *
 	 * to intersect with the static rd
 	 */
-	return call_crda(alpha2);
+	return call_crda(last_request->alpha2);
 }
 
-void regulatory_hint(struct wiphy *wiphy, const char *alpha2)
+/* This currently only processes user and driver regulatory hints */
+static void reg_process_hint(struct regulatory_request *reg_request)
 {
-	int r;
-	BUG_ON(!alpha2);
+	int r = 0;
+	struct wiphy *wiphy = NULL;
+
+	BUG_ON(!reg_request->alpha2);
+
+	mutex_lock(&cfg80211_mutex);
+
+	if (wiphy_idx_valid(reg_request->wiphy_idx))
+		wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
+
+	if (reg_request->initiator == REGDOM_SET_BY_DRIVER &&
+	    !wiphy) {
+		kfree(reg_request);
+		goto out;
+	}
 
-	mutex_lock(&cfg80211_drv_mutex);
-	r = __regulatory_hint(wiphy, REGDOM_SET_BY_DRIVER,
-		alpha2, 0, ENVIRON_ANY);
+	r = __regulatory_hint(wiphy, reg_request);
 	/* This is required so that the orig_* parameters are saved */
-	if (r == -EALREADY && wiphy->strict_regulatory)
-		wiphy_update_regulatory(wiphy, REGDOM_SET_BY_DRIVER);
-	mutex_unlock(&cfg80211_drv_mutex);
+	if (r == -EALREADY && wiphy && wiphy->strict_regulatory)
+		wiphy_update_regulatory(wiphy, reg_request->initiator);
+out:
+	mutex_unlock(&cfg80211_mutex);
+}
+
+/* Processes regulatory hints, this is all the REGDOM_SET_BY_* */
+static void reg_process_pending_hints(void)
+	{
+	struct regulatory_request *reg_request;
+
+	spin_lock(&reg_requests_lock);
+	while (!list_empty(&reg_requests_list)) {
+		reg_request = list_first_entry(&reg_requests_list,
+					       struct regulatory_request,
+					       list);
+		list_del_init(&reg_request->list);
+
+		spin_unlock(&reg_requests_lock);
+		reg_process_hint(reg_request);
+		spin_lock(&reg_requests_lock);
+	}
+	spin_unlock(&reg_requests_lock);
+}
+
+/* Processes beacon hints -- this has nothing to do with country IEs */
+static void reg_process_pending_beacon_hints(void)
+{
+	struct cfg80211_registered_device *drv;
+	struct reg_beacon *pending_beacon, *tmp;
+
+	mutex_lock(&cfg80211_mutex);
+
+	/* This goes through the _pending_ beacon list */
+	spin_lock_bh(&reg_pending_beacons_lock);
+
+	if (list_empty(&reg_pending_beacons)) {
+		spin_unlock_bh(&reg_pending_beacons_lock);
+		goto out;
+	}
+
+	list_for_each_entry_safe(pending_beacon, tmp,
+				 &reg_pending_beacons, list) {
+
+		list_del_init(&pending_beacon->list);
+
+		/* Applies the beacon hint to current wiphys */
+		list_for_each_entry(drv, &cfg80211_drv_list, list)
+			wiphy_update_new_beacon(&drv->wiphy, pending_beacon);
+
+		/* Remembers the beacon hint for new wiphys or reg changes */
+		list_add_tail(&pending_beacon->list, &reg_beacon_list);
+	}
+
+	spin_unlock_bh(&reg_pending_beacons_lock);
+out:
+	mutex_unlock(&cfg80211_mutex);
+}
+
+static void reg_todo(struct work_struct *work)
+{
+	reg_process_pending_hints();
+	reg_process_pending_beacon_hints();
+}
+
+static DECLARE_WORK(reg_work, reg_todo);
+
+static void queue_regulatory_request(struct regulatory_request *request)
+{
+	spin_lock(&reg_requests_lock);
+	list_add_tail(&request->list, &reg_requests_list);
+	spin_unlock(&reg_requests_lock);
+
+	schedule_work(&reg_work);
+}
+
+/* Core regulatory hint -- happens once during cfg80211_init() */
+static int regulatory_hint_core(const char *alpha2)
+{
+	struct regulatory_request *request;
+
+	BUG_ON(last_request);
+
+	request = kzalloc(sizeof(struct regulatory_request),
+			  GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->alpha2[0] = alpha2[0];
+	request->alpha2[1] = alpha2[1];
+	request->initiator = REGDOM_SET_BY_CORE;
+
+	queue_regulatory_request(request);
+
+	return 0;
+}
+
+/* User hints */
+int regulatory_hint_user(const char *alpha2)
+{
+	struct regulatory_request *request;
+
+	BUG_ON(!alpha2);
+
+	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->wiphy_idx = WIPHY_IDX_STALE;
+	request->alpha2[0] = alpha2[0];
+	request->alpha2[1] = alpha2[1];
+	request->initiator = REGDOM_SET_BY_USER,
+
+	queue_regulatory_request(request);
+
+	return 0;
+}
+
+/* Driver hints */
+int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
+{
+	struct regulatory_request *request;
+
+	BUG_ON(!alpha2);
+	BUG_ON(!wiphy);
+
+	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
+	if (!request)
+		return -ENOMEM;
+
+	request->wiphy_idx = get_wiphy_idx(wiphy);
+
+	/* Must have registered wiphy first */
+	BUG_ON(!wiphy_idx_valid(request->wiphy_idx));
+
+	request->alpha2[0] = alpha2[0];
+	request->alpha2[1] = alpha2[1];
+	request->initiator = REGDOM_SET_BY_DRIVER;
+
+	queue_regulatory_request(request);
+
+	return 0;
 }
 EXPORT_SYMBOL(regulatory_hint);
 
 static bool reg_same_country_ie_hint(struct wiphy *wiphy,
 			u32 country_ie_checksum)
 {
-	if (!last_request->wiphy)
+	struct wiphy *request_wiphy;
+
+	assert_cfg80211_lock();
+
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
+	if (!request_wiphy)
 		return false;
-	if (likely(last_request->wiphy != wiphy))
+
+	if (likely(request_wiphy != wiphy))
 		return !country_ie_integrity_changes(country_ie_checksum);
-	/* We should not have let these through at this point, they
+	/*
+	 * We should not have let these through at this point, they
 	 * should have been picked up earlier by the first alpha2 check
-	 * on the device */
+	 * on the device
+	 */
 	if (WARN_ON(!country_ie_integrity_changes(country_ie_checksum)))
 		return true;
 	return false;
@@ -1221,11 +1600,14 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	char alpha2[2];
 	u32 checksum = 0;
 	enum environment_cap env = ENVIRON_ANY;
+	struct regulatory_request *request;
 
-	if (!last_request)
-		return;
+	mutex_lock(&cfg80211_mutex);
 
-	mutex_lock(&cfg80211_drv_mutex);
+	if (unlikely(!last_request)) {
+		mutex_unlock(&cfg80211_mutex);
+		return;
+	}
 
 	/* IE len must be evenly divisible by 2 */
 	if (country_ie_len & 0x01)
@@ -1234,9 +1616,11 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN)
 		goto out;
 
-	/* Pending country IE processing, this can happen after we
+	/*
+	 * Pending country IE processing, this can happen after we
 	 * call CRDA and wait for a response if a beacon was received before
-	 * we were able to process the last regulatory_hint_11d() call */
+	 * we were able to process the last regulatory_hint_11d() call
+	 */
 	if (country_ie_regdomain)
 		goto out;
 
@@ -1248,33 +1632,44 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	else if (country_ie[2] == 'O')
 		env = ENVIRON_OUTDOOR;
 
-	/* We will run this for *every* beacon processed for the BSSID, so
+	/*
+	 * We will run this for *every* beacon processed for the BSSID, so
 	 * we optimize an early check to exit out early if we don't have to
-	 * do anything */
-	if (likely(last_request->wiphy)) {
+	 * do anything
+	 */
+	if (likely(wiphy_idx_valid(last_request->wiphy_idx))) {
 		struct cfg80211_registered_device *drv_last_ie;
 
-		drv_last_ie = wiphy_to_dev(last_request->wiphy);
+		drv_last_ie =
+			cfg80211_drv_by_wiphy_idx(last_request->wiphy_idx);
 
-		/* Lets keep this simple -- we trust the first AP
-		 * after we intersect with CRDA */
-		if (likely(last_request->wiphy == wiphy)) {
-			/* Ignore IEs coming in on this wiphy with
-			 * the same alpha2 and environment cap */
+		/*
+		 * Lets keep this simple -- we trust the first AP
+		 * after we intersect with CRDA
+		 */
+		if (likely(&drv_last_ie->wiphy == wiphy)) {
+			/*
+			 * Ignore IEs coming in on this wiphy with
+			 * the same alpha2 and environment cap
+			 */
 			if (likely(alpha2_equal(drv_last_ie->country_ie_alpha2,
 				  alpha2) &&
 				  env == drv_last_ie->env)) {
 				goto out;
 			}
-			/* the wiphy moved on to another BSSID or the AP
+			/*
+			 * the wiphy moved on to another BSSID or the AP
 			 * was reconfigured. XXX: We need to deal with the
 			 * case where the user suspends and goes to goes
 			 * to another country, and then gets IEs from an
-			 * AP with different settings */
+			 * AP with different settings
+			 */
 			goto out;
 		} else {
-			/* Ignore IEs coming in on two separate wiphys with
-			 * the same alpha2 and environment cap */
+			/*
+			 * Ignore IEs coming in on two separate wiphys with
+			 * the same alpha2 and environment cap
+			 */
 			if (likely(alpha2_equal(drv_last_ie->country_ie_alpha2,
 				  alpha2) &&
 				  env == drv_last_ie->env)) {
@@ -1289,28 +1684,97 @@ void regulatory_hint_11d(struct wiphy *wiphy,
 	if (!rd)
 		goto out;
 
-	/* This will not happen right now but we leave it here for the
+	/*
+	 * This will not happen right now but we leave it here for the
 	 * the future when we want to add suspend/resume support and having
 	 * the user move to another country after doing so, or having the user
-	 * move to another AP. Right now we just trust the first AP. This is why
-	 * this is marked as likley(). If we hit this before we add this support
-	 * we want to be informed of it as it would indicate a mistake in the
-	 * current design  */
-	if (likely(WARN_ON(reg_same_country_ie_hint(wiphy, checksum))))
-		goto out;
+	 * move to another AP. Right now we just trust the first AP.
+	 *
+	 * If we hit this before we add this support we want to be informed of
+	 * it as it would indicate a mistake in the current design
+	 */
+	if (WARN_ON(reg_same_country_ie_hint(wiphy, checksum)))
+		goto free_rd_out;
+
+	request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
+	if (!request)
+		goto free_rd_out;
 
-	/* We keep this around for when CRDA comes back with a response so
-	 * we can intersect with that */
+	/*
+	 * We keep this around for when CRDA comes back with a response so
+	 * we can intersect with that
+	 */
 	country_ie_regdomain = rd;
 
-	__regulatory_hint(wiphy, REGDOM_SET_BY_COUNTRY_IE,
-		country_ie_regdomain->alpha2, checksum, env);
+	request->wiphy_idx = get_wiphy_idx(wiphy);
+	request->alpha2[0] = rd->alpha2[0];
+	request->alpha2[1] = rd->alpha2[1];
+	request->initiator = REGDOM_SET_BY_COUNTRY_IE;
+	request->country_ie_checksum = checksum;
+	request->country_ie_env = env;
+
+	mutex_unlock(&cfg80211_mutex);
+
+	queue_regulatory_request(request);
 
+	return;
+
+free_rd_out:
+	kfree(rd);
 out:
-	mutex_unlock(&cfg80211_drv_mutex);
+	mutex_unlock(&cfg80211_mutex);
 }
 EXPORT_SYMBOL(regulatory_hint_11d);
 
+static bool freq_is_chan_12_13_14(u16 freq)
+{
+	if (freq == ieee80211_channel_to_frequency(12) ||
+	    freq == ieee80211_channel_to_frequency(13) ||
+	    freq == ieee80211_channel_to_frequency(14))
+		return true;
+	return false;
+}
+
+int regulatory_hint_found_beacon(struct wiphy *wiphy,
+				 struct ieee80211_channel *beacon_chan,
+				 gfp_t gfp)
+{
+	struct reg_beacon *reg_beacon;
+
+	if (likely((beacon_chan->beacon_found ||
+	    (beacon_chan->flags & IEEE80211_CHAN_RADAR) ||
+	    (beacon_chan->band == IEEE80211_BAND_2GHZ &&
+	     !freq_is_chan_12_13_14(beacon_chan->center_freq)))))
+		return 0;
+
+	reg_beacon = kzalloc(sizeof(struct reg_beacon), gfp);
+	if (!reg_beacon)
+		return -ENOMEM;
+
+#ifdef CONFIG_CFG80211_REG_DEBUG
+	printk(KERN_DEBUG "cfg80211: Found new beacon on "
+		"frequency: %d MHz (Ch %d) on %s\n",
+		beacon_chan->center_freq,
+		ieee80211_frequency_to_channel(beacon_chan->center_freq),
+		wiphy_name(wiphy));
+#endif
+	memcpy(&reg_beacon->chan, beacon_chan,
+		sizeof(struct ieee80211_channel));
+
+
+	/*
+	 * Since we can be called from BH or and non-BH context
+	 * we must use spin_lock_bh()
+	 */
+	spin_lock_bh(&reg_pending_beacons_lock);
+	list_add_tail(&reg_beacon->list, &reg_pending_beacons);
+	spin_unlock_bh(&reg_pending_beacons_lock);
+
+	schedule_work(&reg_work);
+
+	return 0;
+}
+
 static void print_rd_rules(const struct ieee80211_regdomain *rd)
 {
 	unsigned int i;
@@ -1326,8 +1790,10 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
 		freq_range = &reg_rule->freq_range;
 		power_rule = &reg_rule->power_rule;
 
-		/* There may not be documentation for max antenna gain
-		 * in certain regions */
+		/*
+		 * There may not be documentation for max antenna gain
+		 * in certain regions
+		 */
 		if (power_rule->max_antenna_gain)
 			printk(KERN_INFO "\t(%d KHz - %d KHz @ %d KHz), "
 				"(%d mBi, %d mBm)\n",
@@ -1350,13 +1816,12 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 {
 
 	if (is_intersected_alpha2(rd->alpha2)) {
-		struct wiphy *wiphy = NULL;
-		struct cfg80211_registered_device *drv;
 
 		if (last_request->initiator == REGDOM_SET_BY_COUNTRY_IE) {
-			if (last_request->wiphy) {
-				wiphy = last_request->wiphy;
-				drv = wiphy_to_dev(wiphy);
+			struct cfg80211_registered_device *drv;
+			drv = cfg80211_drv_by_wiphy_idx(
+				last_request->wiphy_idx);
+			if (drv) {
 				printk(KERN_INFO "cfg80211: Current regulatory "
 					"domain updated by AP to: %c%c\n",
 					drv->country_ie_alpha2[0],
@@ -1422,7 +1887,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 {
 	const struct ieee80211_regdomain *intersected_rd = NULL;
 	struct cfg80211_registered_device *drv = NULL;
-	struct wiphy *wiphy = NULL;
+	struct wiphy *request_wiphy;
 	/* Some basic sanity checks first */
 
 	if (is_world_regdom(rd->alpha2)) {
@@ -1439,23 +1904,27 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	if (!last_request)
 		return -EINVAL;
 
-	/* Lets only bother proceeding on the same alpha2 if the current
+	/*
+	 * Lets only bother proceeding on the same alpha2 if the current
 	 * rd is non static (it means CRDA was present and was used last)
-	 * and the pending request came in from a country IE */
+	 * and the pending request came in from a country IE
+	 */
 	if (last_request->initiator != REGDOM_SET_BY_COUNTRY_IE) {
-		/* If someone else asked us to change the rd lets only bother
-		 * checking if the alpha2 changes if CRDA was already called */
+		/*
+		 * If someone else asked us to change the rd lets only bother
+		 * checking if the alpha2 changes if CRDA was already called
+		 */
 		if (!is_old_static_regdom(cfg80211_regdomain) &&
-		    !regdom_changed(rd->alpha2))
+		    !regdom_changes(rd->alpha2))
 			return -EINVAL;
 	}
 
-	wiphy = last_request->wiphy;
-
-	/* Now lets set the regulatory domain, update all driver channels
+	/*
+	 * Now lets set the regulatory domain, update all driver channels
 	 * and finally inform them of what we have done, in case they want
 	 * to review or adjust their own settings based on their own
-	 * internal EEPROM data */
+	 * internal EEPROM data
+	 */
 
 	if (WARN_ON(!reg_is_valid_request(rd->alpha2)))
 		return -EINVAL;
@@ -1467,6 +1936,8 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		return -EINVAL;
 	}
 
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
 	if (!last_request->intersect) {
 		int r;
 
@@ -1476,12 +1947,14 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 			return 0;
 		}
 
-		/* For a driver hint, lets copy the regulatory domain the
-		 * driver wanted to the wiphy to deal with conflicts */
+		/*
+		 * For a driver hint, lets copy the regulatory domain the
+		 * driver wanted to the wiphy to deal with conflicts
+		 */
 
-		BUG_ON(last_request->wiphy->regd);
+		BUG_ON(request_wiphy->regd);
 
-		r = reg_copy_regd(&last_request->wiphy->regd, rd);
+		r = reg_copy_regd(&request_wiphy->regd, rd);
 		if (r)
 			return r;
 
@@ -1498,11 +1971,13 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		if (!intersected_rd)
 			return -EINVAL;
 
-		/* We can trash what CRDA provided now.
+		/*
+		 * We can trash what CRDA provided now.
 		 * However if a driver requested this specific regulatory
-		 * domain we keep it for its private use */
+		 * domain we keep it for its private use
+		 */
 		if (last_request->initiator == REGDOM_SET_BY_DRIVER)
-			last_request->wiphy->regd = rd;
+			request_wiphy->regd = rd;
 		else
 			kfree(rd);
 
@@ -1522,8 +1997,10 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 	BUG_ON(!country_ie_regdomain);
 
 	if (rd != country_ie_regdomain) {
-		/* Intersect what CRDA returned and our what we
-		 * had built from the Country IE received */
+		/*
+		 * Intersect what CRDA returned and our what we
+		 * had built from the Country IE received
+		 */
 
 		intersected_rd = regdom_intersect(rd, country_ie_regdomain);
 
@@ -1533,16 +2010,18 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		kfree(country_ie_regdomain);
 		country_ie_regdomain = NULL;
 	} else {
-		/* This would happen when CRDA was not present and
+		/*
+		 * This would happen when CRDA was not present and
 		 * OLD_REGULATORY was enabled. We intersect our Country
-		 * IE rd and what was set on cfg80211 originally */
+		 * IE rd and what was set on cfg80211 originally
+		 */
 		intersected_rd = regdom_intersect(rd, cfg80211_regdomain);
 	}
 
 	if (!intersected_rd)
 		return -EINVAL;
 
-	drv = wiphy_to_dev(wiphy);
+	drv = wiphy_to_dev(request_wiphy);
 
 	drv->country_ie_alpha2[0] = rd->alpha2[0];
 	drv->country_ie_alpha2[1] = rd->alpha2[1];
@@ -1560,13 +2039,17 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 }
 
 
-/* Use this call to set the current regulatory domain. Conflicts with
+/*
+ * Use this call to set the current regulatory domain. Conflicts with
  * multiple drivers can be ironed out later. Caller must've already
- * kmalloc'd the rd structure. Caller must hold cfg80211_drv_mutex */
+ * kmalloc'd the rd structure. Caller must hold cfg80211_mutex
+ */
 int set_regdom(const struct ieee80211_regdomain *rd)
 {
 	int r;
 
+	assert_cfg80211_lock();
+
 	/* Note that this doesn't update the wiphys, this is done below */
 	r = __set_regdom(rd);
 	if (r) {
@@ -1586,54 +2069,82 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 	return r;
 }
 
-/* Caller must hold cfg80211_drv_mutex */
+/* Caller must hold cfg80211_mutex */
 void reg_device_remove(struct wiphy *wiphy)
 {
+	struct wiphy *request_wiphy;
+
+	assert_cfg80211_lock();
+
+	request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
+
 	kfree(wiphy->regd);
-	if (!last_request || !last_request->wiphy)
+	if (!last_request || !request_wiphy)
 		return;
-	if (last_request->wiphy != wiphy)
+	if (request_wiphy != wiphy)
 		return;
-	last_request->wiphy = NULL;
+	last_request->wiphy_idx = WIPHY_IDX_STALE;
 	last_request->country_ie_env = ENVIRON_ANY;
 }
 
 int regulatory_init(void)
 {
-	int err;
+	int err = 0;
 
 	reg_pdev = platform_device_register_simple("regulatory", 0, NULL, 0);
 	if (IS_ERR(reg_pdev))
 		return PTR_ERR(reg_pdev);
 
+	spin_lock_init(&reg_requests_lock);
+	spin_lock_init(&reg_pending_beacons_lock);
+
 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
 	cfg80211_regdomain = static_regdom(ieee80211_regdom);
 
 	printk(KERN_INFO "cfg80211: Using static regulatory domain info\n");
 	print_regdomain_info(cfg80211_regdomain);
-	/* The old code still requests for a new regdomain and if
+	/*
+	 * The old code still requests for a new regdomain and if
 	 * you have CRDA you get it updated, otherwise you get
 	 * stuck with the static values. We ignore "EU" code as
-	 * that is not a valid ISO / IEC 3166 alpha2 */
+	 * that is not a valid ISO / IEC 3166 alpha2
+	 */
 	if (ieee80211_regdom[0] != 'E' || ieee80211_regdom[1] != 'U')
-		err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE,
-					ieee80211_regdom, 0, ENVIRON_ANY);
+		err = regulatory_hint_core(ieee80211_regdom);
 #else
 	cfg80211_regdomain = cfg80211_world_regdom;
 
-	err = __regulatory_hint(NULL, REGDOM_SET_BY_CORE, "00", 0, ENVIRON_ANY);
-	if (err)
-		printk(KERN_ERR "cfg80211: calling CRDA failed - "
-		       "unable to update world regulatory domain, "
-		       "using static definition\n");
+	err = regulatory_hint_core("00");
 #endif
+	if (err) {
+		if (err == -ENOMEM)
+			return err;
+		/*
+		 * N.B. kobject_uevent_env() can fail mainly for when we're out
+		 * memory which is handled and propagated appropriately above
+		 * but it can also fail during a netlink_broadcast() or during
+		 * early boot for call_usermodehelper(). For now treat these
+		 * errors as non-fatal.
+		 */
+		printk(KERN_ERR "cfg80211: kobject_uevent_env() was unable "
+			"to call CRDA during init");
+#ifdef CONFIG_CFG80211_REG_DEBUG
+		/* We want to find out exactly why when debugging */
+		WARN_ON(err);
+#endif
+	}
 
 	return 0;
 }
 
 void regulatory_exit(void)
 {
-	mutex_lock(&cfg80211_drv_mutex);
+	struct regulatory_request *reg_request, *tmp;
+	struct reg_beacon *reg_beacon, *btmp;
+
+	cancel_work_sync(&reg_work);
+
+	mutex_lock(&cfg80211_mutex);
 
 	reset_regdomains();
 
@@ -1644,5 +2155,33 @@ void regulatory_exit(void)
 
 	platform_device_unregister(reg_pdev);
 
-	mutex_unlock(&cfg80211_drv_mutex);
+	spin_lock_bh(&reg_pending_beacons_lock);
+	if (!list_empty(&reg_pending_beacons)) {
+		list_for_each_entry_safe(reg_beacon, btmp,
+					 &reg_pending_beacons, list) {
+			list_del(&reg_beacon->list);
+			kfree(reg_beacon);
+		}
+	}
+	spin_unlock_bh(&reg_pending_beacons_lock);
+
+	if (!list_empty(&reg_beacon_list)) {
+		list_for_each_entry_safe(reg_beacon, btmp,
+					 &reg_beacon_list, list) {
+			list_del(&reg_beacon->list);
+			kfree(reg_beacon);
+		}
+	}
+
+	spin_lock(&reg_requests_lock);
+	if (!list_empty(&reg_requests_list)) {
+		list_for_each_entry_safe(reg_request, tmp,
+					 &reg_requests_list, list) {
+			list_del(&reg_request->list);
+			kfree(reg_request);
+		}
+	}
+	spin_unlock(&reg_requests_lock);
+
+	mutex_unlock(&cfg80211_mutex);
 }
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index fe8c83f34fb..e37829a49dc 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -6,6 +6,8 @@ extern const struct ieee80211_regdomain *cfg80211_regdomain;
 bool is_world_regdom(const char *alpha2);
 bool reg_is_valid_request(const char *alpha2);
 
+int regulatory_hint_user(const char *alpha2);
+
 void reg_device_remove(struct wiphy *wiphy);
 
 int regulatory_init(void);
@@ -14,26 +16,24 @@ void regulatory_exit(void);
 int set_regdom(const struct ieee80211_regdomain *rd);
 
 /**
- * __regulatory_hint - hint to the wireless core a regulatory domain
- * @wiphy: if the hint comes from country information from an AP, this
- *	is required to be set to the wiphy that received the information
- * @alpha2: the ISO/IEC 3166 alpha2 being claimed the regulatory domain
- *	should be in.
- * @country_ie_checksum: checksum of processed country IE, set this to 0
- * 	if the hint did not come from a country IE
- * @country_ie_env: the environment the IE told us we are in, %ENVIRON_*
- *
- * The Wireless subsystem can use this function to hint to the wireless core
- * what it believes should be the current regulatory domain by giving it an
- * ISO/IEC 3166 alpha2 country code it knows its regulatory domain should be
- * in.
+ * regulatory_hint_found_beacon - hints a beacon was found on a channel
+ * @wiphy: the wireless device where the beacon was found on
+ * @beacon_chan: the channel on which the beacon was found on
+ * @gfp: context flags
  *
- * Returns zero if all went fine, %-EALREADY if a regulatory domain had
- * already been set or other standard error codes.
+ * This informs the wireless core that a beacon from an AP was found on
+ * the channel provided. This allows the wireless core to make educated
+ * guesses on regulatory to help with world roaming. This is only used for
+ * world roaming -- when we do not know our current location. This is
+ * only useful on channels 12, 13 and 14 on the 2 GHz band as channels
+ * 1-11 are already enabled by the world regulatory domain; and on
+ * non-radar 5 GHz channels.
  *
+ * Drivers do not need to call this, cfg80211 will do it for after a scan
+ * on a newly found BSS.
  */
-extern int __regulatory_hint(struct wiphy *wiphy, enum reg_set_by set_by,
-			     const char *alpha2, u32 country_ie_checksum,
-			     enum environment_cap country_ie_env);
+int regulatory_hint_found_beacon(struct wiphy *wiphy,
+					struct ieee80211_channel *beacon_chan,
+					gfp_t gfp);
 
 #endif  /* __NET_WIRELESS_REG_H */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index b1893c863b9..280dbcd02c1 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -62,6 +62,18 @@ static void bss_release(struct kref *ref)
 }
 
 /* must hold dev->bss_lock! */
+void cfg80211_bss_age(struct cfg80211_registered_device *dev,
+                      unsigned long age_secs)
+{
+	struct cfg80211_internal_bss *bss;
+	unsigned long age_jiffies = msecs_to_jiffies(age_secs * MSEC_PER_SEC);
+
+	list_for_each_entry(bss, &dev->bss_list, list) {
+		bss->ts -= age_jiffies;
+	}
+}
+
+/* must hold dev->bss_lock! */
 void cfg80211_bss_expire(struct cfg80211_registered_device *dev)
 {
 	struct cfg80211_internal_bss *bss, *tmp;
@@ -358,7 +370,6 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 		found->pub.beacon_interval = res->pub.beacon_interval;
 		found->pub.tsf = res->pub.tsf;
 		found->pub.signal = res->pub.signal;
-		found->pub.signal_type = res->pub.signal_type;
 		found->pub.capability = res->pub.capability;
 		found->ts = res->ts;
 		kref_put(&res->ref, bss_release);
@@ -380,8 +391,7 @@ struct cfg80211_bss *
 cfg80211_inform_bss_frame(struct wiphy *wiphy,
 			  struct ieee80211_channel *channel,
 			  struct ieee80211_mgmt *mgmt, size_t len,
-			  s32 signal, enum cfg80211_signal_type sigtype,
-			  gfp_t gfp)
+			  s32 signal, gfp_t gfp)
 {
 	struct cfg80211_internal_bss *res;
 	size_t ielen = len - offsetof(struct ieee80211_mgmt,
@@ -389,7 +399,7 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 	bool overwrite;
 	size_t privsz = wiphy->bss_priv_size;
 
-	if (WARN_ON(sigtype == NL80211_BSS_SIGNAL_UNSPEC &&
+	if (WARN_ON(wiphy->signal_type == NL80211_BSS_SIGNAL_UNSPEC &&
 	            (signal < 0 || signal > 100)))
 		return NULL;
 
@@ -403,7 +413,6 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 
 	memcpy(res->pub.bssid, mgmt->bssid, ETH_ALEN);
 	res->pub.channel = channel;
-	res->pub.signal_type = sigtype;
 	res->pub.signal = signal;
 	res->pub.tsf = le64_to_cpu(mgmt->u.probe_resp.timestamp);
 	res->pub.beacon_interval = le16_to_cpu(mgmt->u.probe_resp.beacon_int);
@@ -421,6 +430,9 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 	if (!res)
 		return NULL;
 
+	if (res->pub.capability & WLAN_CAPABILITY_ESS)
+		regulatory_hint_found_beacon(wiphy, channel, gfp);
+
 	/* cfg80211_bss_update gives us a referenced result */
 	return &res->pub;
 }
@@ -584,16 +596,25 @@ static void ieee80211_scan_add_ies(struct iw_request_info *info,
 	}
 }
 
+static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
+{
+	unsigned long end = jiffies;
+
+	if (end >= start)
+		return jiffies_to_msecs(end - start);
+
+	return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
+}
 
 static char *
-ieee80211_bss(struct iw_request_info *info,
-		      struct cfg80211_internal_bss *bss,
-		      char *current_ev, char *end_buf)
+ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
+	      struct cfg80211_internal_bss *bss, char *current_ev,
+	      char *end_buf)
 {
 	struct iw_event iwe;
 	u8 *buf, *cfg, *p;
 	u8 *ie = bss->pub.information_elements;
-	int rem = bss->pub.len_information_elements, i;
+	int rem = bss->pub.len_information_elements, i, sig;
 	bool ismesh = false;
 
 	memset(&iwe, 0, sizeof(iwe));
@@ -617,19 +638,28 @@ ieee80211_bss(struct iw_request_info *info,
 	current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe,
 					  IW_EV_FREQ_LEN);
 
-	if (bss->pub.signal_type != CFG80211_SIGNAL_TYPE_NONE) {
+	if (wiphy->signal_type != CFG80211_SIGNAL_TYPE_NONE) {
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVQUAL;
 		iwe.u.qual.updated = IW_QUAL_LEVEL_UPDATED |
 				     IW_QUAL_NOISE_INVALID |
-				     IW_QUAL_QUAL_INVALID;
-		switch (bss->pub.signal_type) {
+				     IW_QUAL_QUAL_UPDATED;
+		switch (wiphy->signal_type) {
 		case CFG80211_SIGNAL_TYPE_MBM:
-			iwe.u.qual.level = bss->pub.signal / 100;
+			sig = bss->pub.signal / 100;
+			iwe.u.qual.level = sig;
 			iwe.u.qual.updated |= IW_QUAL_DBM;
+			if (sig < -110)		/* rather bad */
+				sig = -110;
+			else if (sig > -40)	/* perfect */
+				sig = -40;
+			/* will give a range of 0 .. 70 */
+			iwe.u.qual.qual = sig + 110;
 			break;
 		case CFG80211_SIGNAL_TYPE_UNSPEC:
 			iwe.u.qual.level = bss->pub.signal;
+			/* will give range 0 .. 100 */
+			iwe.u.qual.qual = bss->pub.signal;
 			break;
 		default:
 			/* not reached */
@@ -763,8 +793,8 @@ ieee80211_bss(struct iw_request_info *info,
 						  &iwe, buf);
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVCUSTOM;
-		sprintf(buf, " Last beacon: %dms ago",
-			jiffies_to_msecs(jiffies - bss->ts));
+		sprintf(buf, " Last beacon: %ums ago",
+			elapsed_jiffies_msecs(bss->ts));
 		iwe.u.data.length = strlen(buf);
 		current_ev = iwe_stream_add_point(info, current_ev,
 						  end_buf, &iwe, buf);
@@ -793,8 +823,8 @@ static int ieee80211_scan_results(struct cfg80211_registered_device *dev,
 			spin_unlock_bh(&dev->bss_lock);
 			return -E2BIG;
 		}
-		current_ev = ieee80211_bss(info, bss,
-						   current_ev, end_buf);
+		current_ev = ieee80211_bss(&dev->wiphy, info, bss,
+					   current_ev, end_buf);
 	}
 	spin_unlock_bh(&dev->bss_lock);
 	return current_ev - buf;
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 26a72b0797a..efe3c5c92b2 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -31,7 +31,7 @@ static ssize_t name ## _show(struct device *dev,			\
 	return sprintf(buf, fmt "\n", dev_to_rdev(dev)->member);	\
 }
 
-SHOW_FMT(index, "%d", idx);
+SHOW_FMT(index, "%d", wiphy_idx);
 SHOW_FMT(macaddress, "%pM", wiphy.perm_addr);
 
 static struct device_attribute ieee80211_dev_attrs[] = {
@@ -60,6 +60,8 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
 	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
 	int ret = 0;
 
+	rdev->suspend_at = get_seconds();
+
 	if (rdev->ops->suspend) {
 		rtnl_lock();
 		ret = rdev->ops->suspend(&rdev->wiphy);
@@ -74,6 +76,11 @@ static int wiphy_resume(struct device *dev)
 	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
 	int ret = 0;
 
+	/* Age scan results with time spent in suspend */
+	spin_lock_bh(&rdev->bss_lock);
+	cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
+	spin_unlock_bh(&rdev->bss_lock);
+
 	if (rdev->ops->resume) {
 		rtnl_lock();
 		ret = rdev->ops->resume(&rdev->wiphy);
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 58e489fd4ae..b84a9b4fe96 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -137,3 +137,100 @@ int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 	return 0;
 }
 EXPORT_SYMBOL(cfg80211_wext_giwmode);
+
+
+int cfg80211_wext_giwrange(struct net_device *dev,
+			   struct iw_request_info *info,
+			   struct iw_point *data, char *extra)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct iw_range *range = (struct iw_range *) extra;
+	enum ieee80211_band band;
+	int c = 0;
+
+	if (!wdev)
+		return -EOPNOTSUPP;
+
+	data->length = sizeof(struct iw_range);
+	memset(range, 0, sizeof(struct iw_range));
+
+	range->we_version_compiled = WIRELESS_EXT;
+	range->we_version_source = 21;
+	range->retry_capa = IW_RETRY_LIMIT;
+	range->retry_flags = IW_RETRY_LIMIT;
+	range->min_retry = 0;
+	range->max_retry = 255;
+	range->min_rts = 0;
+	range->max_rts = 2347;
+	range->min_frag = 256;
+	range->max_frag = 2346;
+
+	range->encoding_size[0] = 5;
+	range->encoding_size[1] = 13;
+	range->num_encoding_sizes = 2;
+	range->max_encoding_tokens = 4;
+
+	range->max_qual.updated = IW_QUAL_NOISE_INVALID;
+
+	switch (wdev->wiphy->signal_type) {
+	case CFG80211_SIGNAL_TYPE_NONE:
+		break;
+	case CFG80211_SIGNAL_TYPE_MBM:
+		range->max_qual.level = -110;
+		range->max_qual.qual = 70;
+		range->avg_qual.qual = 35;
+		range->max_qual.updated |= IW_QUAL_DBM;
+		range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
+		range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
+		break;
+	case CFG80211_SIGNAL_TYPE_UNSPEC:
+		range->max_qual.level = 100;
+		range->max_qual.qual = 100;
+		range->avg_qual.qual = 50;
+		range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
+		range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
+		break;
+	}
+
+	range->avg_qual.level = range->max_qual.level / 2;
+	range->avg_qual.noise = range->max_qual.noise / 2;
+	range->avg_qual.updated = range->max_qual.updated;
+
+	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
+			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
+
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
+		int i;
+		struct ieee80211_supported_band *sband;
+
+		sband = wdev->wiphy->bands[band];
+
+		if (!sband)
+			continue;
+
+		for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
+			struct ieee80211_channel *chan = &sband->channels[i];
+
+			if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
+				range->freq[c].i =
+					ieee80211_frequency_to_channel(
+						chan->center_freq);
+				range->freq[c].m = chan->center_freq;
+				range->freq[c].e = 6;
+				c++;
+			}
+		}
+	}
+	range->num_channels = c;
+	range->num_frequency = c;
+
+	IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
+	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
+	IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
+
+	range->scan_capa |= IW_SCAN_CAPA_ESSID;
+
+	return 0;
+}
+EXPORT_SYMBOL(cfg80211_wext_giwrange);