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

24 files changed, 562 insertions, 300 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 94787d21282..5de1ca3f17b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -19,33 +19,6 @@
 #include "rate.h"
 #include "mesh.h"
 
-static bool nl80211_type_check(enum nl80211_iftype type)
-{
-	switch (type) {
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_MONITOR:
-#ifdef CONFIG_MAC80211_MESH
-	case NL80211_IFTYPE_MESH_POINT:
-#endif
-	case NL80211_IFTYPE_AP:
-	case NL80211_IFTYPE_AP_VLAN:
-	case NL80211_IFTYPE_WDS:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static bool nl80211_params_check(enum nl80211_iftype type,
-				 struct vif_params *params)
-{
-	if (!nl80211_type_check(type))
-		return false;
-
-	return true;
-}
-
 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 			       enum nl80211_iftype type, u32 *flags,
 			       struct vif_params *params)
@@ -55,9 +28,6 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 	struct ieee80211_sub_if_data *sdata;
 	int err;
 
-	if (!nl80211_params_check(type, params))
-		return -EINVAL;
-
 	err = ieee80211_if_add(local, name, &dev, type, params);
 	if (err || type != NL80211_IFTYPE_MONITOR || !flags)
 		return err;
@@ -82,12 +52,6 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	int ret;
 
-	if (ieee80211_sdata_running(sdata))
-		return -EBUSY;
-
-	if (!nl80211_params_check(type, params))
-		return -EINVAL;
-
 	ret = ieee80211_if_change_type(sdata, type);
 	if (ret)
 		return ret;
@@ -114,16 +78,14 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 			     u8 key_idx, const u8 *mac_addr,
 			     struct key_params *params)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct sta_info *sta = NULL;
 	struct ieee80211_key *key;
 	int err;
 
-	if (!netif_running(dev))
+	if (!ieee80211_sdata_running(sdata))
 		return -ENETDOWN;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
 	/* reject WEP and TKIP keys if WEP failed to initialize */
 	switch (params->cipher) {
 	case WLAN_CIPHER_SUITE_WEP40:
@@ -152,9 +114,10 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 		}
 	}
 
-	ieee80211_key_link(key, sdata, sta);
+	err = ieee80211_key_link(key, sdata, sta);
+	if (err)
+		ieee80211_key_free(sdata->local, key);
 
-	err = 0;
  out_unlock:
 	mutex_unlock(&sdata->local->sta_mtx);
 
@@ -1123,9 +1086,9 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 	p.uapsd = false;
 
 	if (drv_conf_tx(local, params->queue, &p)) {
-		printk(KERN_DEBUG "%s: failed to set TX queue "
-		       "parameters for queue %d\n",
-		       wiphy_name(local->hw.wiphy), params->queue);
+		wiphy_debug(local->hw.wiphy,
+			    "failed to set TX queue parameters for queue %d\n",
+			    params->queue);
 		return -EINVAL;
 	}
 
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index a694c593ff6..e81ef4e8cb3 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -85,13 +85,15 @@ static ssize_t tsf_write(struct file *file,
 	if (strncmp(buf, "reset", 5) == 0) {
 		if (local->ops->reset_tsf) {
 			drv_reset_tsf(local);
-			printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
+			wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
 		}
 	} else {
 		tsf = simple_strtoul(buf, NULL, 0);
 		if (local->ops->set_tsf) {
 			drv_set_tsf(local, tsf);
-			printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
+			wiphy_info(local->hw.wiphy,
+				   "debugfs set TSF to %#018llx\n", tsf);
+
 		}
 	}
 
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 14123dce544..6064b7b09e0 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -54,6 +54,20 @@ static inline int drv_add_interface(struct ieee80211_local *local,
 	return ret;
 }
 
+static inline int drv_change_interface(struct ieee80211_local *local,
+				       struct ieee80211_sub_if_data *sdata,
+				       enum nl80211_iftype type)
+{
+	int ret;
+
+	might_sleep();
+
+	trace_drv_change_interface(local, sdata, type);
+	ret = local->ops->change_interface(&local->hw, &sdata->vif, type);
+	trace_drv_return_int(local, ret);
+	return ret;
+}
+
 static inline void drv_remove_interface(struct ieee80211_local *local,
 					struct ieee80211_vif *vif)
 {
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index b5a95582d81..f6f3d89e43f 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -136,6 +136,31 @@ TRACE_EVENT(drv_add_interface,
 	)
 );
 
+TRACE_EVENT(drv_change_interface,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 enum nl80211_iftype type),
+
+	TP_ARGS(local, sdata, type),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		__field(u32, new_type)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		__entry->new_type = type;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT " new type:%d",
+		LOCAL_PR_ARG, VIF_PR_ARG, __entry->new_type
+	)
+);
+
 TRACE_EVENT(drv_remove_interface,
 	TP_PROTO(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata),
 
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 32af9710842..1a3aae54f0c 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -427,8 +427,8 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 		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->name);
+	wiphy_debug(local->hw.wiphy, "Adding new IBSS station %pM (dev=%s)\n",
+		    addr, sdata->name);
 #endif
 
 	sta = sta_info_alloc(sdata, addr, gfp);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index e73ae51dc03..4e635e2fabd 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -50,12 +50,6 @@ struct ieee80211_local;
  * increased memory use (about 2 kB of RAM per entry). */
 #define IEEE80211_FRAGMENT_MAX 4
 
-/*
- * Time after which we ignore scan results and no longer report/use
- * them in any way.
- */
-#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
-
 #define TU_TO_EXP_TIME(x)	(jiffies + usecs_to_jiffies((x) * 1024))
 
 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
@@ -375,6 +369,13 @@ struct ieee80211_if_managed {
 	int ave_beacon_signal;
 
 	/*
+	 * Number of Beacon frames used in ave_beacon_signal. This can be used
+	 * to avoid generating less reliable cqm events that would be based
+	 * only on couple of received frames.
+	 */
+	unsigned int count_beacon_signal;
+
+	/*
 	 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
 	 * that triggered a cqm event. 0 indicates that no event has been
 	 * generated for the current association.
@@ -478,6 +479,19 @@ enum ieee80211_sub_if_data_flags {
 	IEEE80211_SDATA_DONT_BRIDGE_PACKETS	= BIT(3),
 };
 
+/**
+ * enum ieee80211_sdata_state_bits - virtual interface state bits
+ * @SDATA_STATE_RUNNING: virtual interface is up & running; this
+ *	mirrors netif_running() but is separate for interface type
+ *	change handling while the interface is up
+ * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
+ *	mode, so queues are stopped
+ */
+enum ieee80211_sdata_state_bits {
+	SDATA_STATE_RUNNING,
+	SDATA_STATE_OFFCHANNEL,
+};
+
 struct ieee80211_sub_if_data {
 	struct list_head list;
 
@@ -491,6 +505,8 @@ struct ieee80211_sub_if_data {
 
 	unsigned int flags;
 
+	unsigned long state;
+
 	int drop_unencrypted;
 
 	char name[IFNAMSIZ];
@@ -515,6 +531,8 @@ struct ieee80211_sub_if_data {
 	struct ieee80211_key *default_mgmt_key;
 
 	u16 sequence_number;
+	__be16 control_port_protocol;
+	bool control_port_no_encrypt;
 
 	struct work_struct work;
 	struct sk_buff_head skb_queue;
@@ -602,11 +620,17 @@ enum queue_stop_reason {
  *	determine if we are on the operating channel or not
  * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
  *	gets only set in conjunction with SCAN_SW_SCANNING
+ * @SCAN_COMPLETED: Set for our scan work function when the driver reported
+ *	that the scan completed.
+ * @SCAN_ABORTED: Set for our scan work function when the driver reported
+ *	a scan complete for an aborted scan.
  */
 enum {
 	SCAN_SW_SCANNING,
 	SCAN_HW_SCANNING,
 	SCAN_OFF_CHANNEL,
+	SCAN_COMPLETED,
+	SCAN_ABORTED,
 };
 
 /**
@@ -662,6 +686,8 @@ struct ieee80211_local {
 	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
 	unsigned int filter_flags; /* FIF_* */
 
+	bool wiphy_ciphers_allocated;
+
 	/* protects the aggregated multicast list and filter calls */
 	spinlock_t filter_lock;
 
@@ -1083,7 +1109,7 @@ void ieee80211_recalc_idle(struct ieee80211_local *local);
 
 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
 {
-	return netif_running(sdata->dev);
+	return test_bit(SDATA_STATE_RUNNING, &sdata->state);
 }
 
 /* tx handling */
@@ -1160,6 +1186,12 @@ int __ieee80211_suspend(struct ieee80211_hw *hw);
 
 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 {
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
+		"%s: resume with hardware scan still in progress\n",
+		wiphy_name(hw->wiphy));
+
 	return ieee80211_reconfig(hw_to_local(hw));
 }
 #else
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 86f434f234a..c1cc200ac81 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -94,21 +94,14 @@ static inline int identical_mac_addr_allowed(int type1, int type2)
 			 type2 == NL80211_IFTYPE_AP_VLAN));
 }
 
-static int ieee80211_open(struct net_device *dev)
+static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata,
+					    enum nl80211_iftype iftype)
 {
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_sub_if_data *nsdata;
 	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta;
-	u32 changed = 0;
-	int res;
-	u32 hw_reconf_flags = 0;
-	u8 null_addr[ETH_ALEN] = {0};
+	struct ieee80211_sub_if_data *nsdata;
+	struct net_device *dev = sdata->dev;
 
-	/* fail early if user set an invalid address */
-	if (compare_ether_addr(dev->dev_addr, null_addr) &&
-	    !is_valid_ether_addr(dev->dev_addr))
-		return -EADDRNOTAVAIL;
+	ASSERT_RTNL();
 
 	/* we hold the RTNL here so can safely walk the list */
 	list_for_each_entry(nsdata, &local->interfaces, list) {
@@ -125,7 +118,7 @@ static int ieee80211_open(struct net_device *dev)
 			 * belonging to the same hardware. Then, however, we're
 			 * faced with having to adopt two different TSF timers...
 			 */
-			if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+			if (iftype == NL80211_IFTYPE_ADHOC &&
 			    nsdata->vif.type == NL80211_IFTYPE_ADHOC)
 				return -EBUSY;
 
@@ -139,19 +132,36 @@ static int ieee80211_open(struct net_device *dev)
 			/*
 			 * check whether it may have the same address
 			 */
-			if (!identical_mac_addr_allowed(sdata->vif.type,
+			if (!identical_mac_addr_allowed(iftype,
 							nsdata->vif.type))
 				return -ENOTUNIQ;
 
 			/*
 			 * can only add VLANs to enabled APs
 			 */
-			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+			if (iftype == NL80211_IFTYPE_AP_VLAN &&
 			    nsdata->vif.type == NL80211_IFTYPE_AP)
 				sdata->bss = &nsdata->u.ap;
 		}
 	}
 
+	return 0;
+}
+
+/*
+ * NOTE: Be very careful when changing this function, it must NOT return
+ * an error on interface type changes that have been pre-checked, so most
+ * checks should be in ieee80211_check_concurrent_iface.
+ */
+static int ieee80211_do_open(struct net_device *dev, bool coming_up)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
+	u32 changed = 0;
+	int res;
+	u32 hw_reconf_flags = 0;
+
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_WDS:
 		if (!is_valid_ether_addr(sdata->u.wds.remote_addr))
@@ -195,33 +205,22 @@ static int ieee80211_open(struct net_device *dev)
 	}
 
 	/*
-	 * Check all interfaces and copy the hopefully now-present
-	 * MAC address to those that have the special null one.
+	 * Copy the hopefully now-present MAC address to
+	 * this interface, if it has the special null one.
 	 */
-	list_for_each_entry(nsdata, &local->interfaces, list) {
-		struct net_device *ndev = nsdata->dev;
-
-		/*
-		 * No need to check running since we do not allow
-		 * it to start up with this invalid address.
-		 */
-		if (compare_ether_addr(null_addr, ndev->dev_addr) == 0) {
-			memcpy(ndev->dev_addr,
-			       local->hw.wiphy->perm_addr,
-			       ETH_ALEN);
-			memcpy(ndev->perm_addr, ndev->dev_addr, ETH_ALEN);
+	if (is_zero_ether_addr(dev->dev_addr)) {
+		memcpy(dev->dev_addr,
+		       local->hw.wiphy->perm_addr,
+		       ETH_ALEN);
+		memcpy(dev->perm_addr, dev->dev_addr, ETH_ALEN);
+
+		if (!is_valid_ether_addr(dev->dev_addr)) {
+			if (!local->open_count)
+				drv_stop(local);
+			return -EADDRNOTAVAIL;
 		}
 	}
 
-	/*
-	 * Validate the MAC address for this device.
-	 */
-	if (!is_valid_ether_addr(dev->dev_addr)) {
-		if (!local->open_count)
-			drv_stop(local);
-		return -EADDRNOTAVAIL;
-	}
-
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP_VLAN:
 		/* no need to tell driver */
@@ -255,9 +254,11 @@ static int ieee80211_open(struct net_device *dev)
 		netif_carrier_on(dev);
 		break;
 	default:
-		res = drv_add_interface(local, &sdata->vif);
-		if (res)
-			goto err_stop;
+		if (coming_up) {
+			res = drv_add_interface(local, &sdata->vif);
+			if (res)
+				goto err_stop;
+		}
 
 		if (ieee80211_vif_is_mesh(&sdata->vif)) {
 			local->fif_other_bss++;
@@ -313,7 +314,9 @@ static int ieee80211_open(struct net_device *dev)
 	hw_reconf_flags |= __ieee80211_recalc_idle(local);
 	mutex_unlock(&local->mtx);
 
-	local->open_count++;
+	if (coming_up)
+		local->open_count++;
+
 	if (hw_reconf_flags) {
 		ieee80211_hw_config(local, hw_reconf_flags);
 		/*
@@ -328,6 +331,8 @@ static int ieee80211_open(struct net_device *dev)
 
 	netif_tx_start_all_queues(dev);
 
+	set_bit(SDATA_STATE_RUNNING, &sdata->state);
+
 	return 0;
  err_del_interface:
 	drv_remove_interface(local, &sdata->vif);
@@ -341,19 +346,38 @@ static int ieee80211_open(struct net_device *dev)
 	return res;
 }
 
-static int ieee80211_stop(struct net_device *dev)
+static int ieee80211_open(struct net_device *dev)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	int err;
+
+	/* fail early if user set an invalid address */
+	if (!is_zero_ether_addr(dev->dev_addr) &&
+	    !is_valid_ether_addr(dev->dev_addr))
+		return -EADDRNOTAVAIL;
+
+	err = ieee80211_check_concurrent_iface(sdata, sdata->vif.type);
+	if (err)
+		return err;
+
+	return ieee80211_do_open(dev, true);
+}
+
+static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
+			      bool going_down)
+{
 	struct ieee80211_local *local = sdata->local;
 	unsigned long flags;
 	struct sk_buff *skb, *tmp;
 	u32 hw_reconf_flags = 0;
 	int i;
 
+	clear_bit(SDATA_STATE_RUNNING, &sdata->state);
+
 	/*
 	 * Stop TX on this interface first.
 	 */
-	netif_tx_stop_all_queues(dev);
+	netif_tx_stop_all_queues(sdata->dev);
 
 	/*
 	 * Purge work for this interface.
@@ -370,12 +394,9 @@ static int ieee80211_stop(struct net_device *dev)
 	 * (because if we remove a STA after ops->remove_interface()
 	 * the driver will have removed the vif info already!)
 	 *
-	 * We could relax this and only unlink the stations from the
-	 * hash table and list but keep them on a per-sdata list that
-	 * will be inserted back again when the interface is brought
-	 * up again, but I don't currently see a use case for that,
-	 * except with WDS which gets a STA entry created when it is
-	 * brought up.
+	 * This is relevant only in AP, WDS and mesh modes, since in
+	 * all other modes we've already removed all stations when
+	 * disconnecting etc.
 	 */
 	sta_info_flush(local, sdata);
 
@@ -394,11 +415,12 @@ static int ieee80211_stop(struct net_device *dev)
 	if (sdata->vif.type == NL80211_IFTYPE_AP)
 		local->fif_pspoll--;
 
-	netif_addr_lock_bh(dev);
+	netif_addr_lock_bh(sdata->dev);
 	spin_lock_bh(&local->filter_lock);
-	__hw_addr_unsync(&local->mc_list, &dev->mc, dev->addr_len);
+	__hw_addr_unsync(&local->mc_list, &sdata->dev->mc,
+			 sdata->dev->addr_len);
 	spin_unlock_bh(&local->filter_lock);
-	netif_addr_unlock_bh(dev);
+	netif_addr_unlock_bh(sdata->dev);
 
 	ieee80211_configure_filter(local);
 
@@ -410,11 +432,21 @@ static int ieee80211_stop(struct net_device *dev)
 		struct ieee80211_sub_if_data *vlan, *tmpsdata;
 		struct beacon_data *old_beacon = sdata->u.ap.beacon;
 
+		/* sdata_running will return false, so this will disable */
+		ieee80211_bss_info_change_notify(sdata,
+						 BSS_CHANGED_BEACON_ENABLED);
+
 		/* remove beacon */
 		rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 		synchronize_rcu();
 		kfree(old_beacon);
 
+		/* free all potentially still buffered bcast frames */
+		while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
+			local->total_ps_buffered--;
+			dev_kfree_skb(skb);
+		}
+
 		/* down all dependent devices, that is VLANs */
 		list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans,
 					 u.vlan.list)
@@ -422,7 +454,8 @@ static int ieee80211_stop(struct net_device *dev)
 		WARN_ON(!list_empty(&sdata->u.ap.vlans));
 	}
 
-	local->open_count--;
+	if (going_down)
+		local->open_count--;
 
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP_VLAN:
@@ -454,27 +487,6 @@ static int ieee80211_stop(struct net_device *dev)
 
 		ieee80211_configure_filter(local);
 		break;
-	case NL80211_IFTYPE_STATION:
-		del_timer_sync(&sdata->u.mgd.chswitch_timer);
-		del_timer_sync(&sdata->u.mgd.timer);
-		del_timer_sync(&sdata->u.mgd.conn_mon_timer);
-		del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
-		/*
-		 * If any of the timers fired while we waited for it, it will
-		 * have queued its work. Now the work will be running again
-		 * but will not rearm the timer again because it checks
-		 * whether the interface is running, which, at this point,
-		 * it no longer is.
-		 */
-		cancel_work_sync(&sdata->u.mgd.chswitch_work);
-		cancel_work_sync(&sdata->u.mgd.monitor_work);
-		cancel_work_sync(&sdata->u.mgd.beacon_connection_loss_work);
-
-		/* fall through */
-	case NL80211_IFTYPE_ADHOC:
-		if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-			del_timer_sync(&sdata->u.ibss.timer);
-		/* fall through */
 	case NL80211_IFTYPE_MESH_POINT:
 		if (ieee80211_vif_is_mesh(&sdata->vif)) {
 			/* other_bss and allmulti are always set on mesh
@@ -502,18 +514,21 @@ static int ieee80211_stop(struct net_device *dev)
 			ieee80211_scan_cancel(local);
 
 		/*
-		 * Disable beaconing for AP and mesh, IBSS can't
-		 * still be joined to a network at this point.
+		 * Disable beaconing here for mesh only, AP and IBSS
+		 * are already taken care of.
 		 */
-		if (sdata->vif.type == NL80211_IFTYPE_AP ||
-		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT) {
+		if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
 			ieee80211_bss_info_change_notify(sdata,
 				BSS_CHANGED_BEACON_ENABLED);
-		}
 
-		/* free all remaining keys, there shouldn't be any */
+		/*
+		 * Free all remaining keys, there shouldn't be any,
+		 * except maybe group keys in AP more or WDS?
+		 */
 		ieee80211_free_keys(sdata);
-		drv_remove_interface(local, &sdata->vif);
+
+		if (going_down)
+			drv_remove_interface(local, &sdata->vif);
 	}
 
 	sdata->bss = NULL;
@@ -549,6 +564,13 @@ static int ieee80211_stop(struct net_device *dev)
 		}
 	}
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+static int ieee80211_stop(struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	ieee80211_do_stop(sdata, true);
 
 	return 0;
 }
@@ -593,8 +615,6 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
-	struct beacon_data *beacon;
-	struct sk_buff *skb;
 	int flushed;
 	int i;
 
@@ -607,37 +627,8 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 		__skb_queue_purge(&sdata->fragments[i].skb_list);
 	sdata->fragment_next = 0;
 
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_AP:
-		beacon = sdata->u.ap.beacon;
-		rcu_assign_pointer(sdata->u.ap.beacon, NULL);
-		synchronize_rcu();
-		kfree(beacon);
-
-		while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
-			local->total_ps_buffered--;
-			dev_kfree_skb(skb);
-		}
-
-		break;
-	case NL80211_IFTYPE_MESH_POINT:
-		if (ieee80211_vif_is_mesh(&sdata->vif))
-			mesh_rmc_free(sdata);
-		break;
-	case NL80211_IFTYPE_ADHOC:
-		if (WARN_ON(sdata->u.ibss.presp))
-			kfree_skb(sdata->u.ibss.presp);
-		break;
-	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_WDS:
-	case NL80211_IFTYPE_AP_VLAN:
-	case NL80211_IFTYPE_MONITOR:
-		break;
-	case NL80211_IFTYPE_UNSPECIFIED:
-	case NUM_NL80211_IFTYPES:
-		BUG();
-		break;
-	}
+	if (ieee80211_vif_is_mesh(&sdata->vif))
+		mesh_rmc_free(sdata);
 
 	flushed = sta_info_flush(local, sdata);
 	WARN_ON(flushed);
@@ -855,6 +846,9 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	sdata->dev->netdev_ops = &ieee80211_dataif_ops;
 	sdata->wdev.iftype = type;
 
+	sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
+	sdata->control_port_no_encrypt = false;
+
 	/* only monitor differs */
 	sdata->dev->type = ARPHRD_ETHER;
 
@@ -894,9 +888,72 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	ieee80211_debugfs_add_netdev(sdata);
 }
 
+static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
+					   enum nl80211_iftype type)
+{
+	struct ieee80211_local *local = sdata->local;
+	int ret, err;
+
+	ASSERT_RTNL();
+
+	if (!local->ops->change_interface)
+		return -EBUSY;
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+		/*
+		 * Could maybe also all others here?
+		 * Just not sure how that interacts
+		 * with the RX/config path e.g. for
+		 * mesh.
+		 */
+		break;
+	default:
+		return -EBUSY;
+	}
+
+	switch (type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_STATION:
+	case NL80211_IFTYPE_ADHOC:
+		/*
+		 * Could probably support everything
+		 * but WDS here (WDS do_open can fail
+		 * under memory pressure, which this
+		 * code isn't prepared to handle).
+		 */
+		break;
+	default:
+		return -EBUSY;
+	}
+
+	ret = ieee80211_check_concurrent_iface(sdata, type);
+	if (ret)
+		return ret;
+
+	ieee80211_do_stop(sdata, false);
+
+	ieee80211_teardown_sdata(sdata->dev);
+
+	ret = drv_change_interface(local, sdata, type);
+	if (ret)
+		type = sdata->vif.type;
+
+	ieee80211_setup_sdata(sdata, type);
+
+	err = ieee80211_do_open(sdata->dev, false);
+	WARN(err, "type change: do_open returned %d", err);
+
+	return ret;
+}
+
 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 			     enum nl80211_iftype type)
 {
+	int ret;
+
 	ASSERT_RTNL();
 
 	if (type == sdata->vif.type)
@@ -907,18 +964,15 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 	    type == NL80211_IFTYPE_ADHOC)
 		return -EOPNOTSUPP;
 
-	/*
-	 * We could, here, on changes between IBSS/STA/MESH modes,
-	 * invoke an MLME function instead that disassociates etc.
-	 * and goes into the requested mode.
-	 */
-
-	if (ieee80211_sdata_running(sdata))
-		return -EBUSY;
-
-	/* Purge and reset type-dependent state. */
-	ieee80211_teardown_sdata(sdata->dev);
-	ieee80211_setup_sdata(sdata, type);
+	if (ieee80211_sdata_running(sdata)) {
+		ret = ieee80211_runtime_change_iftype(sdata, type);
+		if (ret)
+			return ret;
+	} else {
+		/* Purge and reset type-dependent state. */
+		ieee80211_teardown_sdata(sdata->dev);
+		ieee80211_setup_sdata(sdata, type);
+	}
 
 	/* reset some values that shouldn't be kept across type changes */
 	sdata->vif.bss_conf.basic_rates =
@@ -1175,8 +1229,7 @@ static u32 ieee80211_idle_off(struct ieee80211_local *local,
 		return 0;
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: device no longer idle - %s\n",
-	       wiphy_name(local->hw.wiphy), reason);
+	wiphy_debug(local->hw.wiphy, "device no longer idle - %s\n", reason);
 #endif
 
 	local->hw.conf.flags &= ~IEEE80211_CONF_IDLE;
@@ -1189,8 +1242,7 @@ static u32 ieee80211_idle_on(struct ieee80211_local *local)
 		return 0;
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: device now idle\n",
-	       wiphy_name(local->hw.wiphy));
+	wiphy_debug(local->hw.wiphy, "device now idle\n");
 #endif
 
 	drv_flush(local, false);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 9c27c53cfae..3570f8c2bb4 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -60,7 +60,7 @@ static struct ieee80211_sta *get_sta_for_key(struct ieee80211_key *key)
 	return NULL;
 }
 
-static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
+static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_sta *sta;
@@ -68,8 +68,10 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 
 	might_sleep();
 
-	if (!key->local->ops->set_key)
-		return;
+	if (!key->local->ops->set_key) {
+		ret = -EOPNOTSUPP;
+		goto out_unsupported;
+	}
 
 	assert_key_lock(key->local);
 
@@ -87,10 +89,27 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 		key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
 
 	if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
-		printk(KERN_ERR "mac80211-%s: failed to set key "
-		       "(%d, %pM) to hardware (%d)\n",
-		       wiphy_name(key->local->hw.wiphy),
-		       key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
+		wiphy_err(key->local->hw.wiphy,
+			  "failed to set key (%d, %pM) to hardware (%d)\n",
+			  key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
+
+out_unsupported:
+	if (ret) {
+		switch (key->conf.cipher) {
+		case WLAN_CIPHER_SUITE_WEP40:
+		case WLAN_CIPHER_SUITE_WEP104:
+		case WLAN_CIPHER_SUITE_TKIP:
+		case WLAN_CIPHER_SUITE_CCMP:
+		case WLAN_CIPHER_SUITE_AES_CMAC:
+			/* all of these we can do in software */
+			ret = 0;
+			break;
+		default:
+			ret = -EINVAL;
+		}
+	}
+
+	return ret;
 }
 
 static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
@@ -121,10 +140,9 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 			  sta, &key->conf);
 
 	if (ret)
-		printk(KERN_ERR "mac80211-%s: failed to remove key "
-		       "(%d, %pM) from hardware (%d)\n",
-		       wiphy_name(key->local->hw.wiphy),
-		       key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
+		wiphy_err(key->local->hw.wiphy,
+			  "failed to remove key (%d, %pM) from hardware (%d)\n",
+			  key->conf.keyidx, sta ? sta->addr : bcast_addr, ret);
 
 	key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
 }
@@ -331,12 +349,12 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key)
 	kfree(key);
 }
 
-void ieee80211_key_link(struct ieee80211_key *key,
-			struct ieee80211_sub_if_data *sdata,
-			struct sta_info *sta)
+int ieee80211_key_link(struct ieee80211_key *key,
+		       struct ieee80211_sub_if_data *sdata,
+		       struct sta_info *sta)
 {
 	struct ieee80211_key *old_key;
-	int idx;
+	int idx, ret;
 
 	BUG_ON(!sdata);
 	BUG_ON(!key);
@@ -391,9 +409,11 @@ void ieee80211_key_link(struct ieee80211_key *key,
 
 	ieee80211_debugfs_key_add(key);
 
-	ieee80211_key_enable_hw_accel(key);
+	ret = ieee80211_key_enable_hw_accel(key);
 
 	mutex_unlock(&sdata->local->key_mtx);
+
+	return ret;
 }
 
 static void __ieee80211_key_free(struct ieee80211_key *key)
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 53b5ce12536..cb9a4a65cc6 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -130,9 +130,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
  * Insert a key into data structures (sdata, sta if necessary)
  * to make it used, free old key.
  */
-void ieee80211_key_link(struct ieee80211_key *key,
-			struct ieee80211_sub_if_data *sdata,
-			struct sta_info *sta);
+int __must_check ieee80211_key_link(struct ieee80211_key *key,
+				    struct ieee80211_sub_if_data *sdata,
+				    struct sta_info *sta);
 void ieee80211_key_free(struct ieee80211_local *local,
 			struct ieee80211_key *key);
 void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a53feac4618..a06b6ee63c0 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -305,7 +305,13 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
 
 	trace_api_restart_hw(local);
 
-	/* use this reason, __ieee80211_resume will unblock it */
+	WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
+		"%s called with hardware scan in progress\n", __func__);
+
+	if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)))
+		ieee80211_scan_cancel(local);
+
+	/* use this reason, ieee80211_reconfig will unblock it */
 	ieee80211_stop_queues_by_reason(hw,
 		IEEE80211_QUEUE_STOP_REASON_SUSPEND);
 
@@ -339,9 +345,6 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 	struct ieee80211_if_managed *ifmgd;
 	int c = 0;
 
-	if (!netif_running(ndev))
-		return NOTIFY_DONE;
-
 	/* Make sure it's our interface that got changed */
 	if (!wdev)
 		return NOTIFY_DONE;
@@ -352,6 +355,9 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 	sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
 	bss_conf = &sdata->vif.bss_conf;
 
+	if (!ieee80211_sdata_running(sdata))
+		return NOTIFY_DONE;
+
 	/* ARP filtering is only supported in managed mode */
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return NOTIFY_DONE;
@@ -622,6 +628,14 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	/* mac80211 always supports monitor */
 	local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
 
+#ifndef CONFIG_MAC80211_MESH
+	/* mesh depends on Kconfig, but drivers should set it if they want */
+	local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT);
+#endif
+
+	/* mac80211 supports control port protocol changing */
+	local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL;
+
 	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)
@@ -657,13 +671,40 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if (local->hw.wiphy->max_scan_ie_len)
 		local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len;
 
-	local->hw.wiphy->cipher_suites = cipher_suites;
-	local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
-	if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE))
-		local->hw.wiphy->n_cipher_suites--;
+	/* Set up cipher suites unless driver already did */
+	if (!local->hw.wiphy->cipher_suites) {
+		local->hw.wiphy->cipher_suites = cipher_suites;
+		local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+		if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE))
+			local->hw.wiphy->n_cipher_suites--;
+	}
 	if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) {
-		local->hw.wiphy->cipher_suites += 2;
-		local->hw.wiphy->n_cipher_suites -= 2;
+		if (local->hw.wiphy->cipher_suites == cipher_suites) {
+			local->hw.wiphy->cipher_suites += 2;
+			local->hw.wiphy->n_cipher_suites -= 2;
+		} else {
+			u32 *suites;
+			int r, w = 0;
+
+			/* Filter out WEP */
+
+			suites = kmemdup(
+				local->hw.wiphy->cipher_suites,
+				sizeof(u32) * local->hw.wiphy->n_cipher_suites,
+				GFP_KERNEL);
+			if (!suites)
+				return -ENOMEM;
+			for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) {
+				u32 suite = local->hw.wiphy->cipher_suites[r];
+				if (suite == WLAN_CIPHER_SUITE_WEP40 ||
+				    suite == WLAN_CIPHER_SUITE_WEP104)
+					continue;
+				suites[w++] = suite;
+			}
+			local->hw.wiphy->cipher_suites = suites;
+			local->hw.wiphy->n_cipher_suites = w;
+			local->wiphy_ciphers_allocated = true;
+		}
 	}
 
 	result = wiphy_register(local->hw.wiphy);
@@ -713,16 +754,16 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	result = ieee80211_wep_init(local);
 	if (result < 0)
-		printk(KERN_DEBUG "%s: Failed to initialize wep: %d\n",
-		       wiphy_name(local->hw.wiphy), result);
+		wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n",
+			    result);
 
 	rtnl_lock();
 
 	result = ieee80211_init_rate_ctrl_alg(local,
 					      hw->rate_control_algorithm);
 	if (result < 0) {
-		printk(KERN_DEBUG "%s: Failed to initialize rate control "
-		       "algorithm\n", wiphy_name(local->hw.wiphy));
+		wiphy_debug(local->hw.wiphy,
+			    "Failed to initialize rate control algorithm\n");
 		goto fail_rate;
 	}
 
@@ -731,8 +772,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		result = ieee80211_if_add(local, "wlan%d", NULL,
 					  NL80211_IFTYPE_STATION, NULL);
 		if (result)
-			printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
-			       wiphy_name(local->hw.wiphy));
+			wiphy_warn(local->hw.wiphy,
+				   "Failed to add default virtual iface\n");
 	}
 
 	rtnl_unlock();
@@ -778,6 +819,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
  fail_workqueue:
 	wiphy_unregister(local->hw.wiphy);
  fail_wiphy_register:
+	if (local->wiphy_ciphers_allocated)
+		kfree(local->hw.wiphy->cipher_suites);
 	kfree(local->int_scan_req);
 	return result;
 }
@@ -807,6 +850,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
 	rtnl_unlock();
 
+	cancel_work_sync(&local->restart_work);
 	cancel_work_sync(&local->reconfig_filter);
 
 	ieee80211_clear_tx_pending(local);
@@ -815,8 +859,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 
 	if (skb_queue_len(&local->skb_queue) ||
 	    skb_queue_len(&local->skb_queue_unreliable))
-		printk(KERN_WARNING "%s: skb_queue not empty\n",
-		       wiphy_name(local->hw.wiphy));
+		wiphy_warn(local->hw.wiphy, "skb_queue not empty\n");
 	skb_queue_purge(&local->skb_queue);
 	skb_queue_purge(&local->skb_queue_unreliable);
 
@@ -835,6 +878,9 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 	mutex_destroy(&local->iflist_mtx);
 	mutex_destroy(&local->mtx);
 
+	if (local->wiphy_ciphers_allocated)
+		kfree(local->hw.wiphy->cipher_suites);
+
 	wiphy_free(local->hw.wiphy);
 }
 EXPORT_SYMBOL(ieee80211_free_hw);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 38996a44aa8..0cb822cc12e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -54,6 +54,12 @@
  */
 #define IEEE80211_SIGNAL_AVE_WEIGHT	3
 
+/*
+ * How many Beacon frames need to have been used in average signal strength
+ * before starting to indicate signal change events.
+ */
+#define IEEE80211_SIGNAL_AVE_MIN_COUNT	4
+
 #define TMR_RUNNING_TIMER	0
 #define TMR_RUNNING_CHANSW	1
 
@@ -778,16 +784,17 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 		params.uapsd = uapsd;
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-		printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
-		       "cWmin=%d cWmax=%d txop=%d uapsd=%d\n",
-		       wiphy_name(local->hw.wiphy), queue, aci, acm,
-		       params.aifs, params.cw_min, params.cw_max, params.txop,
-		       params.uapsd);
+		wiphy_debug(local->hw.wiphy,
+			    "WMM queue=%d aci=%d acm=%d aifs=%d "
+			    "cWmin=%d cWmax=%d txop=%d uapsd=%d\n",
+			    queue, aci, acm,
+			    params.aifs, params.cw_min, params.cw_max,
+			    params.txop, params.uapsd);
 #endif
 		if (drv_conf_tx(local, queue, &params))
-			printk(KERN_DEBUG "%s: failed to set TX queue "
-			       "parameters for queue %d\n",
-			       wiphy_name(local->hw.wiphy), queue);
+			wiphy_debug(local->hw.wiphy,
+				    "failed to set TX queue parameters for queue %d\n",
+				    queue);
 	}
 
 	/* enable WMM or activate new settings */
@@ -990,6 +997,11 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	if (remove_sta)
 		sta_info_destroy_addr(sdata, bssid);
+
+	del_timer_sync(&sdata->u.mgd.conn_mon_timer);
+	del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
+	del_timer_sync(&sdata->u.mgd.timer);
+	del_timer_sync(&sdata->u.mgd.chswitch_timer);
 }
 
 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
@@ -1547,15 +1559,18 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	ifmgd->last_beacon_signal = rx_status->signal;
 	if (ifmgd->flags & IEEE80211_STA_RESET_SIGNAL_AVE) {
 		ifmgd->flags &= ~IEEE80211_STA_RESET_SIGNAL_AVE;
-		ifmgd->ave_beacon_signal = rx_status->signal;
+		ifmgd->ave_beacon_signal = rx_status->signal * 16;
 		ifmgd->last_cqm_event_signal = 0;
+		ifmgd->count_beacon_signal = 1;
 	} else {
 		ifmgd->ave_beacon_signal =
 			(IEEE80211_SIGNAL_AVE_WEIGHT * rx_status->signal * 16 +
 			 (16 - IEEE80211_SIGNAL_AVE_WEIGHT) *
 			 ifmgd->ave_beacon_signal) / 16;
+		ifmgd->count_beacon_signal++;
 	}
 	if (bss_conf->cqm_rssi_thold &&
+	    ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT &&
 	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
 		int sig = ifmgd->ave_beacon_signal / 16;
 		int last_event = ifmgd->last_cqm_event_signal;
@@ -2261,6 +2276,9 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	else
 		ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT;
 
+	sdata->control_port_protocol = req->crypto.control_port_ethertype;
+	sdata->control_port_no_encrypt = req->crypto.control_port_no_encrypt;
+
 	ieee80211_add_work(wk);
 	return 0;
 }
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index c36b1911987..eeacaa59380 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -112,8 +112,10 @@ void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local)
 		 * used from user space controlled off-channel operations.
 		 */
 		if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-		    sdata->vif.type != NL80211_IFTYPE_MONITOR)
+		    sdata->vif.type != NL80211_IFTYPE_MONITOR) {
+			set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
 			netif_tx_stop_all_queues(sdata->dev);
+		}
 	}
 	mutex_unlock(&local->iflist_mtx);
 }
@@ -131,6 +133,7 @@ void ieee80211_offchannel_stop_station(struct ieee80211_local *local)
 			continue;
 
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+			set_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
 			netif_tx_stop_all_queues(sdata->dev);
 			if (sdata->u.mgd.associated)
 				ieee80211_offchannel_ps_enable(sdata);
@@ -155,8 +158,20 @@ void ieee80211_offchannel_return(struct ieee80211_local *local,
 				ieee80211_offchannel_ps_disable(sdata);
 		}
 
-		if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
+		if (sdata->vif.type != NL80211_IFTYPE_MONITOR) {
+			clear_bit(SDATA_STATE_OFFCHANNEL, &sdata->state);
+			/*
+			 * This may wake up queues even though the driver
+			 * currently has them stopped. This is not very
+			 * likely, since the driver won't have gotten any
+			 * (or hardly any) new packets while we weren't
+			 * on the right channel, and even if it happens
+			 * it will at most lead to queueing up one more
+			 * packet per queue in mac80211 rather than on
+			 * the interface qdisc.
+			 */
 			netif_tx_wake_all_queues(sdata->dev);
+		}
 
 		/* re-enable beaconing */
 		if (enable_beaconing &&
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index d287fde0431..ce671dfd238 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -12,7 +12,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
 
-	ieee80211_scan_cancel(local);
+	if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)))
+		ieee80211_scan_cancel(local);
 
 	ieee80211_stop_queues_by_reason(hw,
 			IEEE80211_QUEUE_STOP_REASON_SUSPEND);
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index be04d46110f..4f772de2f21 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -368,8 +368,8 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
 
 	ref = rate_control_alloc(name, local);
 	if (!ref) {
-		printk(KERN_WARNING "%s: Failed to select rate control "
-		       "algorithm\n", wiphy_name(local->hw.wiphy));
+		wiphy_warn(local->hw.wiphy,
+			   "Failed to select rate control algorithm\n");
 		return -ENOENT;
 	}
 
@@ -380,9 +380,8 @@ int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
 		sta_info_flush(local, NULL);
 	}
 
-	printk(KERN_DEBUG "%s: Selected rate control "
-	       "algorithm '%s'\n", wiphy_name(local->hw.wiphy),
-	       ref->ops->name);
+	wiphy_debug(local->hw.wiphy, "Selected rate control algorithm '%s'\n",
+		    ref->ops->name);
 
 	return 0;
 }
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index aa41e382bbb..ac205a33690 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -605,10 +605,8 @@ static void ieee80211_sta_reorder_release(struct ieee80211_hw *hw,
 
 #ifdef CONFIG_MAC80211_HT_DEBUG
 			if (net_ratelimit())
-				printk(KERN_DEBUG "%s: release an RX reorder "
-				       "frame due to timeout on earlier "
-				       "frames\n",
-				       wiphy_name(hw->wiphy));
+				wiphy_debug(hw->wiphy,
+					    "release an RX reorder frame due to timeout on earlier frames\n");
 #endif
 			ieee80211_release_reorder_frame(hw, tid_agg_rx,
 							j, frames);
@@ -1002,6 +1000,12 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		result = ieee80211_crypto_aes_cmac_decrypt(rx);
 		break;
+	default:
+		/*
+		 * We can reach here only with HW-only algorithms
+		 * but why didn't it decrypt the frame?!
+		 */
+		return RX_DROP_UNUSABLE;
 	}
 
 	/* either the frame has been decrypted or will be dropped */
@@ -1523,7 +1527,7 @@ static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
 	 * Allow EAPOL frames to us/the PAE group address regardless
 	 * of whether the frame was encrypted or not.
 	 */
-	if (ehdr->h_proto == htons(ETH_P_PAE) &&
+	if (ehdr->h_proto == rx->sdata->control_port_protocol &&
 	    (compare_ether_addr(ehdr->h_dest, rx->sdata->vif.addr) == 0 ||
 	     compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0))
 		return true;
@@ -2481,6 +2485,11 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
 {
 	struct sk_buff_head frames;
 	struct ieee80211_rx_data rx = { };
+	struct tid_ampdu_rx *tid_agg_rx;
+
+	tid_agg_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[tid]);
+	if (!tid_agg_rx)
+		return;
 
 	__skb_queue_head_init(&frames);
 
@@ -2495,10 +2504,9 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid)
 		     test_bit(SCAN_OFF_CHANNEL, &sta->local->scanning)))
 		rx.flags |= IEEE80211_RX_IN_SCAN;
 
-	spin_lock(&sta->ampdu_mlme.tid_rx[tid]->reorder_lock);
-	ieee80211_sta_reorder_release(&sta->local->hw,
-		sta->ampdu_mlme.tid_rx[tid], &frames);
-	spin_unlock(&sta->ampdu_mlme.tid_rx[tid]->reorder_lock);
+	spin_lock(&tid_agg_rx->reorder_lock);
+	ieee80211_sta_reorder_release(&sta->local->hw, tid_agg_rx, &frames);
+	spin_unlock(&tid_agg_rx->reorder_lock);
 
 	ieee80211_rx_handlers(&rx, &frames);
 }
@@ -2698,10 +2706,9 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 			skb_new = skb_copy(skb, GFP_ATOMIC);
 			if (!skb_new) {
 				if (net_ratelimit())
-					printk(KERN_DEBUG "%s: failed to copy "
-					       "multicast frame for %s\n",
-					       wiphy_name(local->hw.wiphy),
-					       prev->name);
+					wiphy_debug(local->hw.wiphy,
+						    "failed to copy multicast frame for %s\n",
+						    prev->name);
 				goto next;
 			}
 			ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 31f233f7f51..d60389ba9b9 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -248,13 +248,11 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
 	return true;
 }
 
-void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
+static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	bool was_hw_scan;
 
-	trace_api_scan_completed(local, aborted);
-
 	mutex_lock(&local->mtx);
 
 	/*
@@ -312,6 +310,18 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 	ieee80211_mesh_notify_scan_completed(local);
 	ieee80211_queue_work(&local->hw, &local->work_work);
 }
+
+void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	trace_api_scan_completed(local, aborted);
+
+	set_bit(SCAN_COMPLETED, &local->scanning);
+	if (aborted)
+		set_bit(SCAN_ABORTED, &local->scanning);
+	ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0);
+}
 EXPORT_SYMBOL(ieee80211_scan_completed);
 
 static int ieee80211_start_sw_scan(struct ieee80211_local *local)
@@ -449,7 +459,7 @@ static int ieee80211_scan_state_decision(struct ieee80211_local *local,
 
 	/* if no more bands/channels left, complete scan and advance to the idle state */
 	if (local->scan_channel_idx >= local->scan_req->n_channels) {
-		ieee80211_scan_completed(&local->hw, false);
+		__ieee80211_scan_completed(&local->hw, false);
 		return 1;
 	}
 
@@ -641,6 +651,14 @@ void ieee80211_scan_work(struct work_struct *work)
 	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
 	unsigned long next_delay = 0;
 
+	if (test_and_clear_bit(SCAN_COMPLETED, &local->scanning)) {
+		bool aborted;
+
+		aborted = test_and_clear_bit(SCAN_ABORTED, &local->scanning);
+		__ieee80211_scan_completed(&local->hw, aborted);
+		return;
+	}
+
 	mutex_lock(&local->mtx);
 	if (!sdata || !local->scan_req) {
 		mutex_unlock(&local->mtx);
@@ -651,7 +669,7 @@ void ieee80211_scan_work(struct work_struct *work)
 		int rc = drv_hw_scan(local, sdata, local->hw_scan_req);
 		mutex_unlock(&local->mtx);
 		if (rc)
-			ieee80211_scan_completed(&local->hw, true);
+			__ieee80211_scan_completed(&local->hw, true);
 		return;
 	}
 
@@ -666,7 +684,7 @@ void ieee80211_scan_work(struct work_struct *work)
 		mutex_unlock(&local->mtx);
 
 		if (rc)
-			ieee80211_scan_completed(&local->hw, true);
+			__ieee80211_scan_completed(&local->hw, true);
 		return;
 	}
 
@@ -676,7 +694,7 @@ void ieee80211_scan_work(struct work_struct *work)
 	 * Avoid re-scheduling when the sdata is going away.
 	 */
 	if (!ieee80211_sdata_running(sdata)) {
-		ieee80211_scan_completed(&local->hw, true);
+		__ieee80211_scan_completed(&local->hw, true);
 		return;
 	}
 
@@ -783,5 +801,5 @@ void ieee80211_scan_cancel(struct ieee80211_local *local)
 	mutex_unlock(&local->mtx);
 
 	if (abortscan)
-		ieee80211_scan_completed(&local->hw, true);
+		__ieee80211_scan_completed(&local->hw, true);
 }
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6d86f0c1ad0..687077e49dc 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -174,8 +174,7 @@ static void __sta_info_free(struct ieee80211_local *local,
 	}
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Destroyed STA %pM\n",
-	       wiphy_name(local->hw.wiphy), sta->sta.addr);
+	wiphy_debug(local->hw.wiphy, "Destroyed STA %pM\n", sta->sta.addr);
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 
 	kfree(sta);
@@ -262,8 +261,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX);
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Allocated STA %pM\n",
-	       wiphy_name(local->hw.wiphy), sta->sta.addr);
+	wiphy_debug(local->hw.wiphy, "Allocated STA %pM\n", sta->sta.addr);
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 
 #ifdef CONFIG_MAC80211_MESH
@@ -300,8 +298,9 @@ static int sta_info_finish_insert(struct sta_info *sta, bool async)
 		sta->uploaded = true;
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 		if (async)
-			printk(KERN_DEBUG "%s: Finished adding IBSS STA %pM\n",
-			       wiphy_name(local->hw.wiphy), sta->sta.addr);
+			wiphy_debug(local->hw.wiphy,
+				    "Finished adding IBSS STA %pM\n",
+				    sta->sta.addr);
 #endif
 	}
 
@@ -411,8 +410,8 @@ int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU)
 		spin_unlock_irqrestore(&local->sta_lock, flags);
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-		printk(KERN_DEBUG "%s: Added IBSS STA %pM\n",
-		       wiphy_name(local->hw.wiphy), sta->sta.addr);
+		wiphy_debug(local->hw.wiphy, "Added IBSS STA %pM\n",
+			    sta->sta.addr);
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 
 		ieee80211_queue_work(&local->hw, &local->sta_finish_work);
@@ -459,8 +458,7 @@ int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU)
 	}
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Inserted STA %pM\n",
-	       wiphy_name(local->hw.wiphy), sta->sta.addr);
+	wiphy_debug(local->hw.wiphy, "Inserted STA %pM\n", sta->sta.addr);
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 
 	/* move reference to rcu-protected */
@@ -690,8 +688,7 @@ static int __must_check __sta_info_destroy(struct sta_info *sta)
 #endif
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Removed STA %pM\n",
-	       wiphy_name(local->hw.wiphy), sta->sta.addr);
+	wiphy_debug(local->hw.wiphy, "Removed STA %pM\n", sta->sta.addr);
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 	cancel_work_sync(&sta->drv_unblock_wk);
 
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 67a35841bef..571b32bfc54 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -114,11 +114,10 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	if (net_ratelimit())
-		printk(KERN_DEBUG "%s: dropped TX filtered frame, "
-		       "queue_len=%d PS=%d @%lu\n",
-		       wiphy_name(local->hw.wiphy),
-		       skb_queue_len(&sta->tx_filtered),
-		       !!test_sta_flags(sta, WLAN_STA_PS_STA), jiffies);
+		wiphy_debug(local->hw.wiphy,
+			    "dropped TX filtered frame, queue_len=%d PS=%d @%lu\n",
+			    skb_queue_len(&sta->tx_filtered),
+			    !!test_sta_flags(sta, WLAN_STA_PS_STA), jiffies);
 #endif
 	dev_kfree_skb(skb);
 }
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index bc4fefc9166..ccf373788ce 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -351,8 +351,8 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 
 	local->total_ps_buffered = total;
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
-	printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
-	       wiphy_name(local->hw.wiphy), purged);
+	wiphy_debug(local->hw.wiphy, "PS buffers full - purged %d frames\n",
+		    purged);
 #endif
 }
 
@@ -509,6 +509,18 @@ ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
 }
 
 static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
+	if (unlikely(tx->sdata->control_port_protocol == tx->skb->protocol &&
+		     tx->sdata->control_port_no_encrypt))
+		info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
+
+	return TX_CONTINUE;
+}
+
+static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_key *key = NULL;
@@ -527,7 +539,7 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 	else if ((key = rcu_dereference(tx->sdata->default_key)))
 		tx->key = key;
 	else if (tx->sdata->drop_unencrypted &&
-		 (tx->skb->protocol != cpu_to_be16(ETH_P_PAE)) &&
+		 (tx->skb->protocol != tx->sdata->control_port_protocol) &&
 		 !(info->flags & IEEE80211_TX_CTL_INJECTED) &&
 		 (!ieee80211_is_robust_mgmt_frame(hdr) ||
 		  (ieee80211_is_action(hdr->frame_control) &&
@@ -947,6 +959,8 @@ ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
 {
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
 	if (!tx->key)
 		return TX_CONTINUE;
 
@@ -960,10 +974,16 @@ ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
 		return ieee80211_crypto_ccmp_encrypt(tx);
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		return ieee80211_crypto_aes_cmac_encrypt(tx);
+	default:
+		/* handle hw-only algorithm */
+		if (info->control.hw_key) {
+			ieee80211_tx_set_protected(tx);
+			return TX_CONTINUE;
+		}
+		break;
+
 	}
 
-	/* not reached */
-	WARN_ON(1);
 	return TX_DROP;
 }
 
@@ -1341,6 +1361,7 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
 	CALL_TXH(ieee80211_tx_h_dynamic_ps);
 	CALL_TXH(ieee80211_tx_h_check_assoc);
 	CALL_TXH(ieee80211_tx_h_ps_buf);
+	CALL_TXH(ieee80211_tx_h_check_control_port_protocol);
 	CALL_TXH(ieee80211_tx_h_select_key);
 	if (!(tx->local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL))
 		CALL_TXH(ieee80211_tx_h_rate_ctrl);
@@ -1513,8 +1534,8 @@ static int ieee80211_skb_resize(struct ieee80211_local *local,
 		I802_DEBUG_INC(local->tx_expand_skb_head);
 
 	if (pskb_expand_head(skb, head_need, tail_need, GFP_ATOMIC)) {
-		printk(KERN_DEBUG "%s: failed to reallocate TX buffer\n",
-		       wiphy_name(local->hw.wiphy));
+		wiphy_debug(local->hw.wiphy,
+			    "failed to reallocate TX buffer\n");
 		return -ENOMEM;
 	}
 
@@ -1701,7 +1722,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	u16 ethertype, hdrlen,  meshhdrlen = 0;
 	__le16 fc;
 	struct ieee80211_hdr hdr;
-	struct ieee80211s_hdr mesh_hdr;
+	struct ieee80211s_hdr mesh_hdr __maybe_unused;
 	const u8 *encaps_data;
 	int encaps_len, skip_header_bytes;
 	int nh_pos, h_pos;
@@ -1818,7 +1839,8 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 #endif
 	case NL80211_IFTYPE_STATION:
 		memcpy(hdr.addr1, sdata->u.mgd.bssid, ETH_ALEN);
-		if (sdata->u.mgd.use_4addr && ethertype != ETH_P_PAE) {
+		if (sdata->u.mgd.use_4addr &&
+		    cpu_to_be16(ethertype) != sdata->control_port_protocol) {
 			fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
 			/* RA TA DA SA */
 			memcpy(hdr.addr2, sdata->vif.addr, ETH_ALEN);
@@ -1871,7 +1893,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	if (!ieee80211_vif_is_mesh(&sdata->vif) &&
 		unlikely(!is_multicast_ether_addr(hdr.addr1) &&
 		      !(sta_flags & WLAN_STA_AUTHORIZED) &&
-		      !(ethertype == ETH_P_PAE &&
+		      !(cpu_to_be16(ethertype) == sdata->control_port_protocol &&
 		       compare_ether_addr(sdata->vif.addr,
 					  skb->data + ETH_ALEN) == 0))) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -2070,8 +2092,7 @@ void ieee80211_tx_pending(unsigned long data)
 
 		if (skb_queue_empty(&local->pending[i]))
 			list_for_each_entry_rcu(sdata, &local->interfaces, list)
-				netif_tx_wake_queue(
-					netdev_get_tx_queue(sdata->dev, i));
+				netif_wake_subqueue(sdata->dev, i);
 	}
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index cd2b485fed4..bd40b11d5ab 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -283,8 +283,11 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 
 	if (skb_queue_empty(&local->pending[queue])) {
 		rcu_read_lock();
-		list_for_each_entry_rcu(sdata, &local->interfaces, list)
-			netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue));
+		list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+			if (test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
+				continue;
+			netif_wake_subqueue(sdata->dev, queue);
+		}
 		rcu_read_unlock();
 	} else
 		tasklet_schedule(&local->tx_pending_tasklet);
@@ -323,7 +326,7 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list)
-		netif_tx_stop_queue(netdev_get_tx_queue(sdata->dev, queue));
+		netif_stop_subqueue(sdata->dev, queue);
 	rcu_read_unlock();
 }
 
@@ -1308,7 +1311,7 @@ void ieee80211_recalc_smps(struct ieee80211_local *local,
 	 */
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (!netif_running(sdata->dev))
+		if (!ieee80211_sdata_running(sdata))
 			continue;
 		if (sdata->vif.type != NL80211_IFTYPE_STATION)
 			goto set;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 927ffbd2aeb..85a23de7bff 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -136,6 +136,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 		.len = sizeof(struct nl80211_sta_flag_update),
 	},
 	[NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
+	[NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
+	[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
 	[NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
 	[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
 	[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
@@ -474,6 +476,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
 		   dev->wiphy.max_num_pmkids);
 
+	if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
+		NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
+
 	nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
 	if (!nl_modes)
 		goto nla_put_failure;
@@ -636,6 +641,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 			nla_nest_end(msg, nl_ftypes);
 		}
 
+		nla_nest_end(msg, nl_ifs);
+
 		nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
 		if (!nl_ifs)
 			goto nla_put_failure;
@@ -3689,7 +3696,8 @@ unlock_rtnl:
 	return err;
 }
 
-static int nl80211_crypto_settings(struct genl_info *info,
+static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
+				   struct genl_info *info,
 				   struct cfg80211_crypto_settings *settings,
 				   int cipher_limit)
 {
@@ -3697,6 +3705,19 @@ static int nl80211_crypto_settings(struct genl_info *info,
 
 	settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
 
+	if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
+		u16 proto;
+		proto = nla_get_u16(
+			info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
+		settings->control_port_ethertype = cpu_to_be16(proto);
+		if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
+		    proto != ETH_P_PAE)
+			return -EINVAL;
+		if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
+			settings->control_port_no_encrypt = true;
+	} else
+		settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
+
 	if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
 		void *data;
 		int len, i;
@@ -3824,7 +3845,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
 	if (info->attrs[NL80211_ATTR_PREV_BSSID])
 		prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
 
-	err = nl80211_crypto_settings(info, &crypto, 1);
+	err = nl80211_crypto_settings(rdev, info, &crypto, 1);
 	if (!err)
 		err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
 					  ssid, ssid_len, ie, ie_len, use_mfp,
@@ -4301,7 +4322,7 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 
 	connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
 
-	err = nl80211_crypto_settings(info, &connect.crypto,
+	err = nl80211_crypto_settings(rdev, info, &connect.crypto,
 				      NL80211_MAX_NR_CIPHER_SUITES);
 	if (err)
 		return err;
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 8d961cc4ae9..bca32eb8f44 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -183,7 +183,14 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
 			return -EINVAL;
 		break;
 	default:
-		return -EINVAL;
+		/*
+		 * We don't know anything about this algorithm,
+		 * allow using it -- but the driver must check
+		 * all parameters! We still check below whether
+		 * or not the driver supports this algorithm,
+		 * of course.
+		 */
+		break;
 	}
 
 	if (params->seq) {
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index 0ef17bc42ba..40385936e28 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -611,7 +611,7 @@ struct iw_statistics *get_wireless_stats(struct net_device *dev)
 #endif
 
 #ifdef CONFIG_CFG80211_WEXT
-	if (dev->ieee80211_ptr && dev->ieee80211_ptr &&
+	if (dev->ieee80211_ptr &&
 	    dev->ieee80211_ptr->wiphy &&
 	    dev->ieee80211_ptr->wiphy->wext &&
 	    dev->ieee80211_ptr->wiphy->wext->get_wireless_stats)
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index 9818198add8..6fffe62d7c2 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -197,6 +197,8 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
 	wdev->wext.connect.ssid_len = len;
 
 	wdev->wext.connect.crypto.control_port = false;
+	wdev->wext.connect.crypto.control_port_ethertype =
+					cpu_to_be16(ETH_P_PAE);
 
 	err = cfg80211_mgd_wext_connect(rdev, wdev);
  out: