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

17 files changed, 547 insertions, 645 deletions

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 3f79413..c1f4e0d 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -318,7 +318,7 @@ static struct attribute_group netstat_group = {
 	.attrs  = netstat_attrs,
 };
 
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_WIRELESS_EXT_SYSFS
 /* helper function that does all the locking etc for wireless stats */
 static ssize_t wireless_show(struct device *d, char *buf,
 			     ssize_t (*format)(const struct iw_statistics *,
@@ -459,7 +459,7 @@ int netdev_register_kobject(struct net_device *net)
 #ifdef CONFIG_SYSFS
 	*groups++ = &netstat_group;
 
-#ifdef CONFIG_WIRELESS_EXT
+#ifdef CONFIG_WIRELESS_EXT_SYSFS
 	if (net->wireless_handlers && net->wireless_handlers->get_wireless_stats)
 		*groups++ = &wireless_group;
 #endif
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8108728..8e7ba0e 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -50,14 +50,11 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 	struct ieee80211_sub_if_data *sdata;
 	int err;
 
-	if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
-		return -ENODEV;
-
 	itype = nl80211_type_to_mac80211_type(type);
 	if (itype == IEEE80211_IF_TYPE_INVALID)
 		return -EINVAL;
 
-	err = ieee80211_if_add(local->mdev, name, &dev, itype, params);
+	err = ieee80211_if_add(local, name, &dev, itype, params);
 	if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags)
 		return err;
 
@@ -68,54 +65,41 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 
 static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct net_device *dev;
-	char *name;
-
-	if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
-		return -ENODEV;
 
 	/* we're under RTNL */
 	dev = __dev_get_by_index(&init_net, ifindex);
 	if (!dev)
-		return 0;
+		return -ENODEV;
 
-	name = dev->name;
+	ieee80211_if_remove(dev);
 
-	return ieee80211_if_remove(local->mdev, name, -1);
+	return 0;
 }
 
 static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
 				  enum nl80211_iftype type, u32 *flags,
 				  struct vif_params *params)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct net_device *dev;
 	enum ieee80211_if_types itype;
 	struct ieee80211_sub_if_data *sdata;
-
-	if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
-		return -ENODEV;
+	int ret;
 
 	/* we're under RTNL */
 	dev = __dev_get_by_index(&init_net, ifindex);
 	if (!dev)
 		return -ENODEV;
 
-	if (netif_running(dev))
-		return -EBUSY;
-
 	itype = nl80211_type_to_mac80211_type(type);
 	if (itype == IEEE80211_IF_TYPE_INVALID)
 		return -EINVAL;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
-		return -EOPNOTSUPP;
-
-	ieee80211_if_reinit(dev);
-	ieee80211_if_set_type(dev, itype);
+	ret = ieee80211_if_change_type(sdata, itype);
+	if (ret)
+		return ret;
 
 	if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
 		ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
@@ -485,7 +469,7 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 
 	kfree(old);
 
-	return ieee80211_if_config_beacon(sdata->dev);
+	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
 }
 
 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
@@ -539,7 +523,7 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 	synchronize_rcu();
 	kfree(old);
 
-	return ieee80211_if_config_beacon(dev);
+	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
 }
 
 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index d20d90e..ee509f1 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -70,16 +70,6 @@ DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
 
 /* statistics stuff */
 
-static inline int rtnl_lock_local(struct ieee80211_local *local)
-{
-	rtnl_lock();
-	if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
-		rtnl_unlock();
-		return -ENODEV;
-	}
-	return 0;
-}
-
 #define DEBUGFS_STATS_FILE(name, buflen, fmt, value...)			\
 	DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
 
@@ -96,10 +86,7 @@ static ssize_t format_devstat_counter(struct ieee80211_local *local,
 	if (!local->ops->get_stats)
 		return -EOPNOTSUPP;
 
-	res = rtnl_lock_local(local);
-	if (res)
-		return res;
-
+	rtnl_lock();
 	res = local->ops->get_stats(local_to_hw(local), &stats);
 	rtnl_unlock();
 	if (!res)
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index b2089b2..475f89a 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -156,6 +156,8 @@ static const struct file_operations name##_ops = {			\
 
 /* common attributes */
 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);
@@ -191,8 +193,6 @@ __IEEE80211_IF_FILE(flags);
 IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
 IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
 IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
-IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
-IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
 
 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
@@ -248,6 +248,9 @@ IEEE80211_IF_WFILE(min_discovery_timeout,
 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(drop_unencrypted, sta);
+	DEBUGFS_ADD(force_unicast_rateidx, ap);
+	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
+
 	DEBUGFS_ADD(state, sta);
 	DEBUGFS_ADD(bssid, sta);
 	DEBUGFS_ADD(prev_bssid, sta);
@@ -268,23 +271,29 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(drop_unencrypted, ap);
+	DEBUGFS_ADD(force_unicast_rateidx, ap);
+	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
+
 	DEBUGFS_ADD(num_sta_ps, ap);
 	DEBUGFS_ADD(dtim_count, ap);
 	DEBUGFS_ADD(num_beacons, ap);
-	DEBUGFS_ADD(force_unicast_rateidx, ap);
-	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
 	DEBUGFS_ADD(num_buffered_multicast, ap);
 }
 
 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(drop_unencrypted, wds);
+	DEBUGFS_ADD(force_unicast_rateidx, ap);
+	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
+
 	DEBUGFS_ADD(peer, wds);
 }
 
 static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(drop_unencrypted, vlan);
+	DEBUGFS_ADD(force_unicast_rateidx, ap);
+	DEBUGFS_ADD(max_ratectrl_rateidx, ap);
 }
 
 static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
@@ -372,6 +381,9 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
 static void del_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(drop_unencrypted, sta);
+	DEBUGFS_DEL(force_unicast_rateidx, ap);
+	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
+
 	DEBUGFS_DEL(state, sta);
 	DEBUGFS_DEL(bssid, sta);
 	DEBUGFS_DEL(prev_bssid, sta);
@@ -392,23 +404,29 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata)
 static void del_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(drop_unencrypted, ap);
+	DEBUGFS_DEL(force_unicast_rateidx, ap);
+	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
+
 	DEBUGFS_DEL(num_sta_ps, ap);
 	DEBUGFS_DEL(dtim_count, ap);
 	DEBUGFS_DEL(num_beacons, ap);
-	DEBUGFS_DEL(force_unicast_rateidx, ap);
-	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
 	DEBUGFS_DEL(num_buffered_multicast, ap);
 }
 
 static void del_wds_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(drop_unencrypted, wds);
+	DEBUGFS_DEL(force_unicast_rateidx, ap);
+	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
+
 	DEBUGFS_DEL(peer, wds);
 }
 
 static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(drop_unencrypted, vlan);
+	DEBUGFS_DEL(force_unicast_rateidx, ap);
+	DEBUGFS_DEL(max_ratectrl_rateidx, ap);
 }
 
 static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
@@ -458,12 +476,12 @@ static void del_mesh_config(struct ieee80211_sub_if_data *sdata)
 }
 #endif
 
-static void del_files(struct ieee80211_sub_if_data *sdata, int type)
+static void del_files(struct ieee80211_sub_if_data *sdata)
 {
 	if (!sdata->debugfsdir)
 		return;
 
-	switch (type) {
+	switch (sdata->vif.type) {
 	case IEEE80211_IF_TYPE_MESH_POINT:
 #ifdef CONFIG_MAC80211_MESH
 		del_mesh_stats(sdata);
@@ -503,29 +521,23 @@ void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
 	sprintf(buf, "netdev:%s", sdata->dev->name);
 	sdata->debugfsdir = debugfs_create_dir(buf,
 		sdata->local->hw.wiphy->debugfsdir);
+	add_files(sdata);
 }
 
 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
 {
-	del_files(sdata, sdata->vif.type);
+	del_files(sdata);
 	debugfs_remove(sdata->debugfsdir);
 	sdata->debugfsdir = NULL;
 }
 
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
-				      int oldtype)
-{
-	del_files(sdata, oldtype);
-	add_files(sdata);
-}
-
 static int netdev_notify(struct notifier_block *nb,
 			 unsigned long state,
 			 void *ndev)
 {
 	struct net_device *dev = ndev;
 	struct dentry *dir;
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata;
 	char buf[10+IFNAMSIZ];
 
 	if (state != NETDEV_CHANGENAME)
@@ -537,6 +549,8 @@ static int netdev_notify(struct notifier_block *nb,
 	if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
 		return 0;
 
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
 	sprintf(buf, "netdev:%s", dev->name);
 	dir = sdata->debugfsdir;
 	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
diff --git a/net/mac80211/debugfs_netdev.h b/net/mac80211/debugfs_netdev.h
index a690071..7af731f 100644
--- a/net/mac80211/debugfs_netdev.h
+++ b/net/mac80211/debugfs_netdev.h
@@ -6,8 +6,6 @@
 #ifdef CONFIG_MAC80211_DEBUGFS
 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
-				     int oldtype);
 void ieee80211_debugfs_netdev_init(void);
 void ieee80211_debugfs_netdev_exit(void);
 #else
@@ -17,9 +15,6 @@ static inline void ieee80211_debugfs_add_netdev(
 static inline void ieee80211_debugfs_remove_netdev(
 	struct ieee80211_sub_if_data *sdata)
 {}
-static inline void ieee80211_debugfs_change_if_type(
-	struct ieee80211_sub_if_data *sdata, int oldtype)
-{}
 static inline void ieee80211_debugfs_netdev_init(void)
 {}
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 02a8753..cbea015 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -237,8 +237,6 @@ struct ieee80211_if_ap {
 	struct sk_buff_head ps_bc_buf;
 	atomic_t num_sta_ps; /* number of stations in PS mode */
 	int dtim_count;
-	int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
-	int max_ratectrl_rateidx; /* max TX rateidx for rate control */
 	int num_beacons; /* number of TXed beacon frames for this BSS */
 };
 
@@ -248,7 +246,6 @@ struct ieee80211_if_wds {
 };
 
 struct ieee80211_if_vlan {
-	struct ieee80211_sub_if_data *ap;
 	struct list_head list;
 };
 
@@ -422,8 +419,6 @@ struct ieee80211_sub_if_data {
 	 */
 	u64 basic_rates;
 
-	u16 sequence;
-
 	/* Fragment table for host-based reassembly */
 	struct ieee80211_fragment_entry	fragments[IEEE80211_FRAGMENT_MAX];
 	unsigned int fragment_next;
@@ -432,16 +427,18 @@ struct ieee80211_sub_if_data {
 	struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
 	struct ieee80211_key *default_key;
 
+	/* BSS configuration for this interface. */
+	struct ieee80211_bss_conf bss_conf;
+
 	/*
-	 * BSS configuration for this interface.
-	 *
-	 * FIXME: I feel bad putting this here when we already have a
-	 *	  bss pointer, but the bss pointer is just wrong when
-	 *	  you have multiple virtual STA mode interfaces...
-	 *	  This needs to be fixed.
+	 * AP this belongs to: self in AP mode and
+	 * corresponding AP in VLAN mode, NULL for
+	 * all others (might be needed later in IBSS)
 	 */
-	struct ieee80211_bss_conf bss_conf;
-	struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
+	struct ieee80211_if_ap *bss;
+
+	int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
+	int max_ratectrl_rateidx; /* max TX rateidx for rate control */
 
 	union {
 		struct ieee80211_if_ap ap;
@@ -533,8 +530,6 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 	return container_of(p, struct ieee80211_sub_if_data, vif);
 }
 
-#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
-
 enum {
 	IEEE80211_RX_MSG	= 1,
 	IEEE80211_TX_STATUS_MSG	= 2,
@@ -561,12 +556,6 @@ struct ieee80211_local {
 	bool tim_in_locked_section; /* see ieee80211_beacon_get() */
 	int tx_headroom; /* required headroom for hardware/radiotap */
 
-	enum {
-		IEEE80211_DEV_UNINITIALIZED = 0,
-		IEEE80211_DEV_REGISTERED,
-		IEEE80211_DEV_UNREGISTERED,
-	} reg_state;
-
 	/* Tasklet and skb queue to process calls from IRQ mode. All frames
 	 * added to skb_queue will be processed, but frames in
 	 * skb_queue_unreliable may be dropped if the total length of these
@@ -760,6 +749,16 @@ static inline int ieee80211_is_multiqueue(struct ieee80211_local *local)
 #endif
 }
 
+static inline struct ieee80211_sub_if_data *
+IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+	BUG_ON(!local || local->mdev == dev);
+
+	return netdev_priv(dev);
+}
+
 /* this struct represents 802.11n's RA/TID combination */
 struct ieee80211_ra_tid {
 	u8 ra[ETH_ALEN];
@@ -853,10 +852,8 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 
 /* ieee80211.c */
 int ieee80211_hw_config(struct ieee80211_local *local);
-int ieee80211_if_config(struct net_device *dev);
-int ieee80211_if_config_beacon(struct net_device *dev);
+int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
-void ieee80211_if_setup(struct net_device *dev);
 u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
 			struct ieee80211_ht_info *req_ht_cap,
 			struct ieee80211_ht_bss_info *req_bss_cap);
@@ -883,8 +880,8 @@ int ieee80211_sta_scan_results(struct net_device *dev,
 ieee80211_rx_result ieee80211_sta_rx_scan(
 	struct net_device *dev, struct sk_buff *skb,
 	struct ieee80211_rx_status *rx_status);
-void ieee80211_rx_bss_list_init(struct net_device *dev);
-void ieee80211_rx_bss_list_deinit(struct net_device *dev);
+void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
+void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
 struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
 					struct sk_buff *skb, u8 *bssid,
@@ -925,17 +922,15 @@ static inline void ieee80211_start_mesh(struct net_device *dev)
 {}
 #endif
 
-/* ieee80211_iface.c */
-int ieee80211_if_add(struct net_device *dev, const char *name,
-		     struct net_device **new_dev, int type,
+/* interface handling */
+void ieee80211_if_setup(struct net_device *dev);
+int ieee80211_if_add(struct ieee80211_local *local, const char *name,
+		     struct net_device **new_dev, enum ieee80211_if_types type,
 		     struct vif_params *params);
-void ieee80211_if_set_type(struct net_device *dev, int type);
-void ieee80211_if_reinit(struct net_device *dev);
-void __ieee80211_if_del(struct ieee80211_local *local,
-			struct ieee80211_sub_if_data *sdata);
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
-void ieee80211_if_free(struct net_device *dev);
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
+int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
+			     enum ieee80211_if_types type);
+void ieee80211_if_remove(struct net_device *dev);
+void ieee80211_remove_interfaces(struct ieee80211_local *local);
 
 /* tx handling */
 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index eeb1692..610ed1d 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -2,6 +2,7 @@
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005-2006, Devicescape Software, Inc.
  * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2008, 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
@@ -17,145 +18,91 @@
 #include "debugfs_netdev.h"
 #include "mesh.h"
 
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
+/*
+ * Called when the netdev is removed or, by the code below, before
+ * the interface type changes.
+ */
+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;
 
-	/* Default values for sub-interface parameters */
-	sdata->drop_unencrypted = 0;
-	for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
-		skb_queue_head_init(&sdata->fragments[i].skb_list);
-
-	INIT_LIST_HEAD(&sdata->key_list);
-}
+	ieee80211_debugfs_remove_netdev(sdata);
 
-static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
-{
-	int i;
+	/* free extra data */
+	ieee80211_free_keys(sdata);
 
 	for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
 		__skb_queue_purge(&sdata->fragments[i].skb_list);
-}
-
-/* Must be called with rtnl lock held. */
-int ieee80211_if_add(struct net_device *dev, const char *name,
-		     struct net_device **new_dev, int type,
-		     struct vif_params *params)
-{
-	struct net_device *ndev;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata = NULL;
-	int ret;
-
-	ASSERT_RTNL();
-	ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size,
-			    name, ieee80211_if_setup);
-	if (!ndev)
-		return -ENOMEM;
+	sdata->fragment_next = 0;
 
-	ndev->needed_headroom = local->tx_headroom +
-				4*6 /* four MAC addresses */
-				+ 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */
-				+ 6 /* mesh */
-				+ 8 /* rfc1042/bridge tunnel */
-				- ETH_HLEN /* ethernet hard_header_len */
-				+ IEEE80211_ENCRYPT_HEADROOM;
-	ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM;
-
-	ret = dev_alloc_name(ndev, ndev->name);
-	if (ret < 0)
-		goto fail;
-
-	memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
-	ndev->base_addr = dev->base_addr;
-	ndev->irq = dev->irq;
-	ndev->mem_start = dev->mem_start;
-	ndev->mem_end = dev->mem_end;
-	SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
-	ndev->ieee80211_ptr = &sdata->wdev;
-	sdata->wdev.wiphy = local->hw.wiphy;
-	sdata->vif.type = IEEE80211_IF_TYPE_AP;
-	sdata->dev = ndev;
-	sdata->local = local;
-	ieee80211_if_sdata_init(sdata);
-
-	ret = register_netdevice(ndev);
-	if (ret)
-		goto fail;
-
-	ieee80211_debugfs_add_netdev(sdata);
-	ieee80211_if_set_type(ndev, type);
+	switch (sdata->vif.type) {
+	case IEEE80211_IF_TYPE_AP:
+		beacon = sdata->u.ap.beacon;
+		rcu_assign_pointer(sdata->u.ap.beacon, NULL);
+		synchronize_rcu();
+		kfree(beacon);
 
-	if (ieee80211_vif_is_mesh(&sdata->vif) &&
-	    params && params->mesh_id_len)
-		ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
-					     params->mesh_id_len,
-					     params->mesh_id);
+		while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
+			local->total_ps_buffered--;
+			dev_kfree_skb(skb);
+		}
 
-	/* we're under RTNL so all this is fine */
-	if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
-		__ieee80211_if_del(local, sdata);
-		return -ENODEV;
+		break;
+	case IEEE80211_IF_TYPE_MESH_POINT:
+		/* Allow compiler to elide mesh_rmc_free call. */
+		if (ieee80211_vif_is_mesh(&sdata->vif))
+			mesh_rmc_free(dev);
+		/* fall through */
+	case IEEE80211_IF_TYPE_STA:
+	case IEEE80211_IF_TYPE_IBSS:
+		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);
+		break;
+	case IEEE80211_IF_TYPE_WDS:
+	case IEEE80211_IF_TYPE_VLAN:
+	case IEEE80211_IF_TYPE_MNTR:
+		break;
+	case IEEE80211_IF_TYPE_INVALID:
+		BUG();
+		break;
 	}
-	list_add_tail_rcu(&sdata->list, &local->interfaces);
 
-	if (new_dev)
-		*new_dev = ndev;
-
-	return 0;
-
-fail:
-	free_netdev(ndev);
-	return ret;
+	flushed = sta_info_flush(local, sdata);
+	WARN_ON(flushed);
 }
 
-void ieee80211_if_set_type(struct net_device *dev, int type)
+/*
+ * Helper function to initialise an interface to a specific type.
+ */
+static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
+				  enum ieee80211_if_types type)
 {
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	int oldtype = sdata->vif.type;
-
-	/*
-	 * We need to call this function on the master interface
-	 * which already has a hard_start_xmit routine assigned
-	 * which must not be changed.
-	 */
-	if (dev != sdata->local->mdev)
-		dev->hard_start_xmit = ieee80211_subif_start_xmit;
+	struct ieee80211_if_sta *ifsta;
 
-	/*
-	 * Called even when register_netdevice fails, it would
-	 * oops if assigned before initialising the rest.
-	 */
-	dev->uninit = ieee80211_if_reinit;
+	/* clear type-dependent union */
+	memset(&sdata->u, 0, sizeof(sdata->u));
 
-	/* most have no BSS pointer */
-	sdata->bss = NULL;
+	/* and set some type-dependent values */
 	sdata->vif.type = type;
 
-	sdata->basic_rates = 0;
+	/* only monitor differs */
+	sdata->dev->type = ARPHRD_ETHER;
 
 	switch (type) {
-	case IEEE80211_IF_TYPE_WDS:
-		/* nothing special */
-		break;
-	case IEEE80211_IF_TYPE_VLAN:
-		sdata->u.vlan.ap = NULL;
-		break;
 	case IEEE80211_IF_TYPE_AP:
-		sdata->u.ap.force_unicast_rateidx = -1;
-		sdata->u.ap.max_ratectrl_rateidx = -1;
 		skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
-		sdata->bss = &sdata->u.ap;
 		INIT_LIST_HEAD(&sdata->u.ap.vlans);
 		break;
 	case IEEE80211_IF_TYPE_MESH_POINT:
 	case IEEE80211_IF_TYPE_STA:
-	case IEEE80211_IF_TYPE_IBSS: {
-		struct ieee80211_sub_if_data *msdata;
-		struct ieee80211_if_sta *ifsta;
-
+	case IEEE80211_IF_TYPE_IBSS:
 		ifsta = &sdata->u.sta;
 		INIT_WORK(&ifsta->work, ieee80211_sta_work);
 		setup_timer(&ifsta->timer, ieee80211_sta_timer,
@@ -171,153 +118,152 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 		if (ieee80211_num_regular_queues(&sdata->local->hw) >= 4)
 			ifsta->flags |= IEEE80211_STA_WMM_ENABLED;
 
-		msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
-		sdata->bss = &msdata->u.ap;
-
 		if (ieee80211_vif_is_mesh(&sdata->vif))
 			ieee80211_mesh_init_sdata(sdata);
 		break;
-	}
 	case IEEE80211_IF_TYPE_MNTR:
-		dev->type = ARPHRD_IEEE80211_RADIOTAP;
-		dev->hard_start_xmit = ieee80211_monitor_start_xmit;
+		sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP;
+		sdata->dev->hard_start_xmit = ieee80211_monitor_start_xmit;
 		sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
 				      MONITOR_FLAG_OTHER_BSS;
 		break;
+	case IEEE80211_IF_TYPE_WDS:
+	case IEEE80211_IF_TYPE_VLAN:
+		break;
 	case IEEE80211_IF_TYPE_INVALID:
 		BUG();
 		break;
 	}
-	ieee80211_debugfs_change_if_type(sdata, oldtype);
+
+	ieee80211_debugfs_add_netdev(sdata);
 }
 
-/* Must be called with rtnl lock held. */
-void ieee80211_if_reinit(struct net_device *dev)
+int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
+			     enum ieee80211_if_types type)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct sk_buff *skb;
-	int flushed;
+	ASSERT_RTNL();
+
+	if (type == sdata->vif.type)
+		return 0;
+
+	/*
+	 * 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 (netif_running(sdata->dev))
+		return -EBUSY;
+
+	/* 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->basic_rates = 0;
+	sdata->drop_unencrypted = 0;
+
+	return 0;
+}
+
+int ieee80211_if_add(struct ieee80211_local *local, const char *name,
+		     struct net_device **new_dev, enum ieee80211_if_types type,
+		     struct vif_params *params)
+{
+	struct net_device *ndev;
+	struct ieee80211_sub_if_data *sdata = NULL;
+	int ret, i;
 
 	ASSERT_RTNL();
 
-	ieee80211_free_keys(sdata);
+	ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size,
+			    name, ieee80211_if_setup);
+	if (!ndev)
+		return -ENOMEM;
 
-	ieee80211_if_sdata_deinit(sdata);
+	ndev->needed_headroom = local->tx_headroom +
+				4*6 /* four MAC addresses */
+				+ 2 + 2 + 2 + 2 /* ctl, dur, seq, qos */
+				+ 6 /* mesh */
+				+ 8 /* rfc1042/bridge tunnel */
+				- ETH_HLEN /* ethernet hard_header_len */
+				+ IEEE80211_ENCRYPT_HEADROOM;
+	ndev->needed_tailroom = IEEE80211_ENCRYPT_TAILROOM;
 
-	/* Need to handle mesh specially to allow eliding the function call */
-	if (ieee80211_vif_is_mesh(&sdata->vif))
-		mesh_rmc_free(dev);
+	ret = dev_alloc_name(ndev, ndev->name);
+	if (ret < 0)
+		goto fail;
 
-	switch (sdata->vif.type) {
-	case IEEE80211_IF_TYPE_INVALID:
-		/* cannot happen */
-		WARN_ON(1);
-		break;
-	case IEEE80211_IF_TYPE_AP: {
-		/* Remove all virtual interfaces that use this BSS
-		 * as their sdata->bss */
-		struct ieee80211_sub_if_data *tsdata, *n;
-		struct beacon_data *beacon;
-
-		list_for_each_entry_safe(tsdata, n, &local->interfaces, list) {
-			if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
-				printk(KERN_DEBUG "%s: removing virtual "
-				       "interface %s because its BSS interface"
-				       " is being removed\n",
-				       sdata->dev->name, tsdata->dev->name);
-				list_del_rcu(&tsdata->list);
-				/*
-				 * We have lots of time and can afford
-				 * to sync for each interface
-				 */
-				synchronize_rcu();
-				__ieee80211_if_del(local, tsdata);
-			}
-		}
+	memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
+	SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
 
-		beacon = sdata->u.ap.beacon;
-		rcu_assign_pointer(sdata->u.ap.beacon, NULL);
-		synchronize_rcu();
-		kfree(beacon);
+	/* don't use IEEE80211_DEV_TO_SUB_IF because it checks too much */
+	sdata = netdev_priv(ndev);
+	ndev->ieee80211_ptr = &sdata->wdev;
 
-		while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
-			local->total_ps_buffered--;
-			dev_kfree_skb(skb);
-		}
+	/* initialise type-independent data */
+	sdata->wdev.wiphy = local->hw.wiphy;
+	sdata->local = local;
+	sdata->dev = ndev;
 
-		break;
-	}
-	case IEEE80211_IF_TYPE_WDS:
-		/* nothing to do */
-		break;
-	case IEEE80211_IF_TYPE_MESH_POINT:
-	case IEEE80211_IF_TYPE_STA:
-	case IEEE80211_IF_TYPE_IBSS:
-		kfree(sdata->u.sta.extra_ie);
-		sdata->u.sta.extra_ie = NULL;
-		kfree(sdata->u.sta.assocreq_ies);
-		sdata->u.sta.assocreq_ies = NULL;
-		kfree(sdata->u.sta.assocresp_ies);
-		sdata->u.sta.assocresp_ies = NULL;
-		if (sdata->u.sta.probe_resp) {
-			dev_kfree_skb(sdata->u.sta.probe_resp);
-			sdata->u.sta.probe_resp = NULL;
-		}
+	for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
+		skb_queue_head_init(&sdata->fragments[i].skb_list);
 
-		break;
-	case IEEE80211_IF_TYPE_MNTR:
-		dev->type = ARPHRD_ETHER;
-		break;
-	case IEEE80211_IF_TYPE_VLAN:
-		sdata->u.vlan.ap = NULL;
-		break;
-	}
+	INIT_LIST_HEAD(&sdata->key_list);
 
-	flushed = sta_info_flush(local, sdata);
-	WARN_ON(flushed);
+	sdata->force_unicast_rateidx = -1;
+	sdata->max_ratectrl_rateidx = -1;
 
-	memset(&sdata->u, 0, sizeof(sdata->u));
-	ieee80211_if_sdata_init(sdata);
-}
+	/* setup type-dependent data */
+	ieee80211_setup_sdata(sdata, type);
 
-/* Must be called with rtnl lock held. */
-void __ieee80211_if_del(struct ieee80211_local *local,
-			struct ieee80211_sub_if_data *sdata)
-{
-	struct net_device *dev = sdata->dev;
+	ret = register_netdevice(ndev);
+	if (ret)
+		goto fail;
 
-	ieee80211_debugfs_remove_netdev(sdata);
-	unregister_netdevice(dev);
-	/* Except master interface, the net_device will be freed by
-	 * net_device->destructor (i. e. ieee80211_if_free). */
+	ndev->uninit = ieee80211_teardown_sdata;
+
+	if (ieee80211_vif_is_mesh(&sdata->vif) &&
+	    params && params->mesh_id_len)
+		ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
+					     params->mesh_id_len,
+					     params->mesh_id);
+
+	list_add_tail_rcu(&sdata->list, &local->interfaces);
+
+	if (new_dev)
+		*new_dev = ndev;
+
+	return 0;
+
+ fail:
+	free_netdev(ndev);
+	return ret;
 }
 
-/* Must be called with rtnl lock held. */
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
+void ieee80211_if_remove(struct net_device *dev)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata, *n;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
 	ASSERT_RTNL();
 
-	list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
-		if ((sdata->vif.type == id || id == -1) &&
-		    strcmp(name, sdata->dev->name) == 0 &&
-		    sdata->dev != local->mdev) {
-			list_del_rcu(&sdata->list);
-			synchronize_rcu();
-			__ieee80211_if_del(local, sdata);
-			return 0;
-		}
-	}
-	return -ENODEV;
+	list_del_rcu(&sdata->list);
+	synchronize_rcu();
+	unregister_netdevice(dev);
 }
 
-void ieee80211_if_free(struct net_device *dev)
+/*
+ * Remove all interfaces, may only be called at hardware unregistration
+ * time because it doesn't do RCU-safe list removals.
+ */
+void ieee80211_remove_interfaces(struct ieee80211_local *local)
 {
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata, *tmp;
 
-	ieee80211_if_sdata_deinit(sdata);
-	free_netdev(dev);
+	ASSERT_RTNL();
+
+	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+		list_del(&sdata->list);
+		unregister_netdevice(sdata->dev);
+	}
 }
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 1c4d3ba..36859e7 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -105,7 +105,7 @@ static int ieee80211_master_open(struct net_device *dev)
 
 	/* we hold the RTNL here so can safely walk the list */
 	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (sdata->dev != dev && netif_running(sdata->dev)) {
+		if (netif_running(sdata->dev)) {
 			res = 0;
 			break;
 		}
@@ -126,7 +126,7 @@ static int ieee80211_master_stop(struct net_device *dev)
 
 	/* we hold the RTNL here so can safely walk the list */
 	list_for_each_entry(sdata, &local->interfaces, list)
-		if (sdata->dev != dev && netif_running(sdata->dev))
+		if (netif_running(sdata->dev))
 			dev_close(sdata->dev);
 
 	return 0;
@@ -194,7 +194,7 @@ static int ieee80211_open(struct net_device *dev)
 	list_for_each_entry(nsdata, &local->interfaces, list) {
 		struct net_device *ndev = nsdata->dev;
 
-		if (ndev != dev && ndev != local->mdev && netif_running(ndev)) {
+		if (ndev != dev && netif_running(ndev)) {
 			/*
 			 * Allow only a single IBSS interface to be up at any
 			 * time. This is restricted because beacon distribution
@@ -210,30 +210,6 @@ static int ieee80211_open(struct net_device *dev)
 				return -EBUSY;
 
 			/*
-			 * Disallow multiple IBSS/STA mode interfaces.
-			 *
-			 * This is a technical restriction, it is possible although
-			 * most likely not IEEE 802.11 compliant to have multiple
-			 * STAs with just a single hardware (the TSF timer will not
-			 * be adjusted properly.)
-			 *
-			 * However, because mac80211 uses the master device's BSS
-			 * information for each STA/IBSS interface, doing this will
-			 * currently corrupt that BSS information completely, unless,
-			 * a not very useful case, both STAs are associated to the
-			 * same BSS.
-			 *
-			 * To remove this restriction, the BSS information needs to
-			 * be embedded in the STA/IBSS mode sdata instead of using
-			 * the master device's BSS structure.
-			 */
-			if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
-			     sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
-			    (nsdata->vif.type == IEEE80211_IF_TYPE_STA ||
-			     nsdata->vif.type == IEEE80211_IF_TYPE_IBSS))
-				return -EBUSY;
-
-			/*
 			 * The remaining checks are only performed for interfaces
 			 * with the same MAC address.
 			 */
@@ -252,7 +228,7 @@ static int ieee80211_open(struct net_device *dev)
 			 */
 			if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
 			    nsdata->vif.type == IEEE80211_IF_TYPE_AP)
-				sdata->u.vlan.ap = nsdata;
+				sdata->bss = &nsdata->u.ap;
 		}
 	}
 
@@ -262,10 +238,13 @@ static int ieee80211_open(struct net_device *dev)
 			return -ENOLINK;
 		break;
 	case IEEE80211_IF_TYPE_VLAN:
-		if (!sdata->u.vlan.ap)
+		if (!sdata->bss)
 			return -ENOLINK;
+		list_add(&sdata->u.vlan.list, &sdata->bss->vlans);
 		break;
 	case IEEE80211_IF_TYPE_AP:
+		sdata->bss = &sdata->u.ap;
+		break;
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_MNTR:
 	case IEEE80211_IF_TYPE_IBSS:
@@ -283,14 +262,13 @@ static int ieee80211_open(struct net_device *dev)
 		if (local->ops->start)
 			res = local->ops->start(local_to_hw(local));
 		if (res)
-			return res;
+			goto err_del_bss;
 		need_hw_reconfig = 1;
 		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
 	}
 
 	switch (sdata->vif.type) {
 	case IEEE80211_IF_TYPE_VLAN:
-		list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
 		/* no need to tell driver */
 		break;
 	case IEEE80211_IF_TYPE_MNTR:
@@ -329,7 +307,8 @@ static int ieee80211_open(struct net_device *dev)
 		if (res)
 			goto err_stop;
 
-		ieee80211_if_config(dev);
+		if (ieee80211_vif_is_mesh(&sdata->vif))
+			ieee80211_start_mesh(sdata->dev);
 		changed |= ieee80211_reset_erp_info(dev);
 		ieee80211_bss_info_change_notify(sdata, changed);
 		ieee80211_enable_keys(sdata);
@@ -404,6 +383,10 @@ static int ieee80211_open(struct net_device *dev)
  err_stop:
 	if (!local->open_count && local->ops->stop)
 		local->ops->stop(local_to_hw(local));
+ err_del_bss:
+	sdata->bss = NULL;
+	if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+		list_del(&sdata->u.vlan.list);
 	return res;
 }
 
@@ -486,7 +469,6 @@ static int ieee80211_stop(struct net_device *dev)
 	switch (sdata->vif.type) {
 	case IEEE80211_IF_TYPE_VLAN:
 		list_del(&sdata->u.vlan.list);
-		sdata->u.vlan.ap = NULL;
 		/* no need to tell driver */
 		break;
 	case IEEE80211_IF_TYPE_MNTR:
@@ -549,6 +531,8 @@ static int ieee80211_stop(struct net_device *dev)
 		local->ops->remove_interface(local_to_hw(local), &conf);
 	}
 
+	sdata->bss = NULL;
+
 	if (local->open_count == 0) {
 		if (netif_running(local->mdev))
 			dev_close(local->mdev);
@@ -988,7 +972,6 @@ static const struct header_ops ieee80211_header_ops = {
 	.cache_update	= eth_header_cache_update,
 };
 
-/* Must not be called for mdev */
 void ieee80211_if_setup(struct net_device *dev)
 {
 	ether_setup(dev);
@@ -998,62 +981,52 @@ void ieee80211_if_setup(struct net_device *dev)
 	dev->change_mtu = ieee80211_change_mtu;
 	dev->open = ieee80211_open;
 	dev->stop = ieee80211_stop;
-	dev->destructor = ieee80211_if_free;
+	dev->destructor = free_netdev;
 }
 
 /* everything else */
 
-static int __ieee80211_if_config(struct net_device *dev,
-				 struct sk_buff *beacon)
+int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 {
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_conf conf;
 
-	if (!local->ops->config_interface || !netif_running(dev))
+	if (WARN_ON(!netif_running(sdata->dev)))
+		return 0;
+
+	if (!local->ops->config_interface)
 		return 0;
 
 	memset(&conf, 0, sizeof(conf));
-	conf.type = sdata->vif.type;
+	conf.changed = changed;
+
 	if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
 	    sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
 		conf.bssid = sdata->u.sta.bssid;
 		conf.ssid = sdata->u.sta.ssid;
 		conf.ssid_len = sdata->u.sta.ssid_len;
-	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
-		conf.beacon = beacon;
-		ieee80211_start_mesh(dev);
 	} else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+		conf.bssid = sdata->dev->dev_addr;
 		conf.ssid = sdata->u.ap.ssid;
 		conf.ssid_len = sdata->u.ap.ssid_len;
-		conf.beacon = beacon;
+	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		u8 zero[ETH_ALEN] = { 0 };
+		conf.bssid = zero;
+		conf.ssid = zero;
+		conf.ssid_len = 0;
+	} else {
+		WARN_ON(1);
+		return -EINVAL;
 	}
-	return local->ops->config_interface(local_to_hw(local),
-					    &sdata->vif, &conf);
-}
 
-int ieee80211_if_config(struct net_device *dev)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
-	    (local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
-		return ieee80211_if_config_beacon(dev);
-	return __ieee80211_if_config(dev, NULL);
-}
+	if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
+		return -EINVAL;
 
-int ieee80211_if_config_beacon(struct net_device *dev)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct sk_buff *skb;
+	if (WARN_ON(!conf.ssid && (changed & IEEE80211_IFCC_SSID)))
+		return -EINVAL;
 
-	if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
-		return 0;
-	skb = ieee80211_beacon_get(local_to_hw(local), &sdata->vif);
-	if (!skb)
-		return -ENOMEM;
-	return __ieee80211_if_config(dev, skb);
+	return local->ops->config_interface(local_to_hw(local),
+					    &sdata->vif, &conf);
 }
 
 int ieee80211_hw_config(struct ieee80211_local *local)
@@ -1659,7 +1632,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	int result;
 	enum ieee80211_band band;
 	struct net_device *mdev;
-	struct ieee80211_sub_if_data *sdata;
+	struct wireless_dev *mwdev;
 
 	/*
 	 * generic code guarantees at least one band,
@@ -1699,8 +1672,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	hw->ampdu_queues = 0;
 #endif
 
-	/* for now, mdev needs sub_if_data :/ */
-	mdev = alloc_netdev_mq(sizeof(struct ieee80211_sub_if_data),
+	mdev = alloc_netdev_mq(sizeof(struct wireless_dev),
 			       "wmaster%d", ether_setup,
 			       ieee80211_num_queues(hw));
 	if (!mdev)
@@ -1709,13 +1681,13 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if (ieee80211_num_queues(hw) > 1)
 		mdev->features |= NETIF_F_MULTI_QUEUE;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
-	mdev->ieee80211_ptr = &sdata->wdev;
-	sdata->wdev.wiphy = local->hw.wiphy;
+	mwdev = netdev_priv(mdev);
+	mdev->ieee80211_ptr = mwdev;
+	mwdev->wiphy = local->hw.wiphy;
 
 	local->mdev = mdev;
 
-	ieee80211_rx_bss_list_init(mdev);
+	ieee80211_rx_bss_list_init(local);
 
 	mdev->hard_start_xmit = ieee80211_master_start_xmit;
 	mdev->open = ieee80211_master_open;
@@ -1724,16 +1696,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	mdev->header_ops = &ieee80211_header_ops;
 	mdev->set_multicast_list = ieee80211_master_set_multicast_list;
 
-	sdata->vif.type = IEEE80211_IF_TYPE_AP;
-	sdata->dev = mdev;
-	sdata->local = local;
-	sdata->u.ap.force_unicast_rateidx = -1;
-	sdata->u.ap.max_ratectrl_rateidx = -1;
-	ieee80211_if_sdata_init(sdata);
-
-	/* no RCU needed since we're still during init phase */
-	list_add_tail(&sdata->list, &local->interfaces);
-
 	name = wiphy_dev(local->hw.wiphy)->driver->name;
 	local->hw.workqueue = create_freezeable_workqueue(name);
 	if (!local->hw.workqueue) {
@@ -1779,9 +1741,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	if (result < 0)
 		goto fail_dev;
 
-	ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
-	ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
-
 	result = ieee80211_init_rate_ctrl_alg(local,
 					      hw->rate_control_algorithm);
 	if (result < 0) {
@@ -1801,13 +1760,12 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	ieee80211_install_qdisc(local->mdev);
 
 	/* add one default STA interface */
-	result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
+	result = ieee80211_if_add(local, "wlan%d", NULL,
 				  IEEE80211_IF_TYPE_STA, NULL);
 	if (result)
 		printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
 		       wiphy_name(local->hw.wiphy));
 
-	local->reg_state = IEEE80211_DEV_REGISTERED;
 	rtnl_unlock();
 
 	ieee80211_led_init(local);
@@ -1817,7 +1775,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 fail_wep:
 	rate_control_deinitialize(local);
 fail_rate:
-	ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
 	unregister_netdevice(local->mdev);
 	local->mdev = NULL;
 fail_dev:
@@ -1827,10 +1784,8 @@ fail_sta_info:
 	debugfs_hw_del(local);
 	destroy_workqueue(local->hw.workqueue);
 fail_workqueue:
-	if (local->mdev != NULL) {
-		ieee80211_if_free(local->mdev);
-		local->mdev = NULL;
-	}
+	if (local->mdev)
+		free_netdev(local->mdev);
 fail_mdev_alloc:
 	wiphy_unregister(local->hw.wiphy);
 	return result;
@@ -1840,42 +1795,27 @@ EXPORT_SYMBOL(ieee80211_register_hw);
 void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_sub_if_data *sdata, *tmp;
 
 	tasklet_kill(&local->tx_pending_tasklet);
 	tasklet_kill(&local->tasklet);
 
 	rtnl_lock();
 
-	BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
-
-	local->reg_state = IEEE80211_DEV_UNREGISTERED;
-
 	/*
 	 * At this point, interface list manipulations are fine
 	 * because the driver cannot be handing us frames any
 	 * more and the tasklet is killed.
 	 */
 
-	/*
-	 * First, we remove all non-master interfaces. Do this because they
-	 * may have bss pointer dependency on the master, and when we free
-	 * the master these would be freed as well, breaking our list
-	 * iteration completely.
-	 */
-	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
-		if (sdata->dev == local->mdev)
-			continue;
-		list_del(&sdata->list);
-		__ieee80211_if_del(local, sdata);
-	}
+	/* First, we remove all virtual interfaces. */
+	ieee80211_remove_interfaces(local);
 
 	/* then, finally, remove the master interface */
-	__ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
+	unregister_netdevice(local->mdev);
 
 	rtnl_unlock();
 
-	ieee80211_rx_bss_list_deinit(local->mdev);
+	ieee80211_rx_bss_list_deinit(local);
 	ieee80211_clear_tx_pending(local);
 	sta_info_stop(local);
 	rate_control_deinitialize(local);
@@ -1892,8 +1832,7 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 	wiphy_unregister(local->hw.wiphy);
 	ieee80211_wep_free(local);
 	ieee80211_led_exit(local);
-	ieee80211_if_free(local->mdev);
-	local->mdev = NULL;
+	free_netdev(local->mdev);
 }
 EXPORT_SYMBOL(ieee80211_unregister_hw);
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index dbc8cf4..8f51375 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -78,7 +78,7 @@ static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
 static struct ieee80211_sta_bss *
 ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
 		     u8 *ssid, u8 ssid_len);
-static void ieee80211_rx_bss_put(struct net_device *dev,
+static void ieee80211_rx_bss_put(struct ieee80211_local *local,
 				 struct ieee80211_sta_bss *bss);
 static int ieee80211_sta_find_ibss(struct net_device *dev,
 				   struct ieee80211_if_sta *ifsta);
@@ -345,7 +345,7 @@ static void ieee80211_sta_wmm_params(struct net_device *dev,
 		params.aifs = pos[0] & 0x0f;
 		params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
 		params.cw_min = ecw2cw(pos[1] & 0x0f);
-		params.txop = pos[2] | (pos[3] << 8);
+		params.txop = get_unaligned_le16(pos + 2);
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 		printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
 		       "cWmin=%d cWmax=%d txop=%d\n",
@@ -554,7 +554,7 @@ static void ieee80211_set_associated(struct net_device *dev,
 
 			changed |= ieee80211_handle_bss_capability(sdata, bss);
 
-			ieee80211_rx_bss_put(dev, bss);
+			ieee80211_rx_bss_put(local, bss);
 		}
 
 		if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
@@ -760,7 +760,7 @@ static void ieee80211_send_assoc(struct net_device *dev,
 		    (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT))
 			capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
 
-		ieee80211_rx_bss_put(dev, bss);
+		ieee80211_rx_bss_put(local, bss);
 	} else {
 		rates = ~0;
 		rates_len = sband->n_bitrates;
@@ -992,7 +992,7 @@ static int ieee80211_privacy_mismatch(struct net_device *dev,
 	wep_privacy = !!ieee80211_sta_wep_configured(dev);
 	privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
 
-	ieee80211_rx_bss_put(dev, bss);
+	ieee80211_rx_bss_put(local, bss);
 
 	if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
 		return 0;
@@ -2094,7 +2094,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 			sta->last_signal = bss->signal;
 			sta->last_qual = bss->qual;
 			sta->last_noise = bss->noise;
-			ieee80211_rx_bss_put(dev, bss);
+			ieee80211_rx_bss_put(local, bss);
 		}
 
 		err = sta_info_insert(sta);
@@ -2212,10 +2212,9 @@ static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
 
 
 /* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_del(struct net_device *dev,
+static void __ieee80211_rx_bss_hash_del(struct ieee80211_local *local,
 					struct ieee80211_sta_bss *bss)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sta_bss *b, *prev = NULL;
 	b = local->sta_bss_hash[STA_HASH(bss->bssid)];
 	while (b) {
@@ -2367,39 +2366,35 @@ static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
 }
 
 
-static void ieee80211_rx_bss_put(struct net_device *dev,
+static void ieee80211_rx_bss_put(struct ieee80211_local *local,
 				 struct ieee80211_sta_bss *bss)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
 	local_bh_disable();
 	if (!atomic_dec_and_lock(&bss->users, &local->sta_bss_lock)) {
 		local_bh_enable();
 		return;
 	}
 
-	__ieee80211_rx_bss_hash_del(dev, bss);
+	__ieee80211_rx_bss_hash_del(local, bss);
 	list_del(&bss->list);
 	spin_unlock_bh(&local->sta_bss_lock);
 	ieee80211_rx_bss_free(bss);
 }
 
 
-void ieee80211_rx_bss_list_init(struct net_device *dev)
+void ieee80211_rx_bss_list_init(struct ieee80211_local *local)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	spin_lock_init(&local->sta_bss_lock);
 	INIT_LIST_HEAD(&local->sta_bss_list);
 }
 
 
-void ieee80211_rx_bss_list_deinit(struct net_device *dev)
+void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sta_bss *bss, *tmp;
 
 	list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
-		ieee80211_rx_bss_put(dev, bss);
+		ieee80211_rx_bss_put(local, bss);
 }
 
 
@@ -2411,8 +2406,6 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
 	int res, rates, i, j;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	struct ieee80211_tx_info *control;
-	struct rate_selection ratesel;
 	u8 *pos;
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_supported_band *sband;
@@ -2430,7 +2423,7 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
 		local->ops->reset_tsf(local_to_hw(local));
 	}
 	memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
-	res = ieee80211_if_config(dev);
+	res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
 	if (res)
 		return res;
 
@@ -2444,19 +2437,16 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
 	if (res)
 		return res;
 
-	/* Set beacon template */
+	/* Build IBSS probe response */
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
-	do {
-		if (!skb)
-			break;
-
+	if (skb) {
 		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 = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
-						   IEEE80211_STYPE_BEACON);
+						   IEEE80211_STYPE_PROBE_RESP);
 		memset(mgmt->da, 0xff, ETH_ALEN);
 		memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
 		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
@@ -2500,61 +2490,22 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
 			memcpy(pos, &bss->supp_rates[8], rates);
 		}
 
-		control = IEEE80211_SKB_CB(skb);
-
-		rate_control_get_rate(dev, sband, skb, &ratesel);
-		if (ratesel.rate_idx < 0) {
-			printk(KERN_DEBUG "%s: Failed to determine TX rate "
-			       "for IBSS beacon\n", dev->name);
-			break;
-		}
-		control->control.vif = &sdata->vif;
-		control->tx_rate_idx = ratesel.rate_idx;
-		if (sdata->bss_conf.use_short_preamble &&
-		    sband->bitrates[ratesel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
-			control->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
-		control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
-		control->flags |= IEEE80211_TX_CTL_NO_ACK;
-		control->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT;
-		control->control.retry_limit = 1;
-
-		ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
-		if (ifsta->probe_resp) {
-			mgmt = (struct ieee80211_mgmt *)
-				ifsta->probe_resp->data;
-			mgmt->frame_control =
-				IEEE80211_FC(IEEE80211_FTYPE_MGMT,
-					     IEEE80211_STYPE_PROBE_RESP);
-		} else {
-			printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
-			       "template for IBSS\n", dev->name);
-		}
+		ifsta->probe_resp = skb;
 
-		if (local->ops->beacon_update &&
-		    local->ops->beacon_update(local_to_hw(local), skb) == 0) {
-			printk(KERN_DEBUG "%s: Configured IBSS beacon "
-			       "template\n", dev->name);
-			skb = NULL;
-		}
-
-		rates = 0;
-		sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-		for (i = 0; i < bss->supp_rates_len; i++) {
-			int bitrate = (bss->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(dev, bss, 1);
-	} while (0);
+		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+	}
 
-	if (skb) {
-		printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
-		       "template\n", dev->name);
-		dev_kfree_skb(skb);
+	rates = 0;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	for (i = 0; i < bss->supp_rates_len; i++) {
+		int bitrate = (bss->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(dev, bss, 1);
 
 	ifsta->state = IEEE80211_IBSS_JOINED;
 	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
@@ -2775,7 +2726,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 	 */
 	if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
 	    bss->probe_resp && beacon) {
-		ieee80211_rx_bss_put(dev, bss);
+		ieee80211_rx_bss_put(local, bss);
 		return;
 	}
 
@@ -2918,7 +2869,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 		}
 	}
 
-	ieee80211_rx_bss_put(dev, bss);
+	ieee80211_rx_bss_put(local, bss);
 }
 
 
@@ -3338,7 +3289,7 @@ static void ieee80211_mesh_housekeeping(struct net_device *dev,
 
 	free_plinks = mesh_plink_availables(sdata);
 	if (free_plinks != sdata->u.sta.accepting_plinks)
-		ieee80211_if_config_beacon(dev);
+		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
 
 	mod_timer(&ifsta->timer, jiffies +
 			IEEE80211_MESH_HOUSEKEEPING_INTERVAL);
@@ -3578,7 +3529,7 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 					       selected->ssid_len);
 		ieee80211_sta_set_bssid(dev, selected->bssid);
 		ieee80211_sta_def_wmm_params(dev, selected, 0);
-		ieee80211_rx_bss_put(dev, selected);
+		ieee80211_rx_bss_put(local, selected);
 		ifsta->state = IEEE80211_AUTHENTICATE;
 		ieee80211_sta_reset_auth(dev, ifsta);
 		return 0;
@@ -3655,7 +3606,7 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
 	}
 
 	ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
-	ieee80211_rx_bss_put(dev, bss);
+	ieee80211_rx_bss_put(local, bss);
 	return ret;
 }
 
@@ -3711,7 +3662,7 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
 		       " based on configured SSID\n",
 		       dev->name, print_mac(mac, bssid));
 		ret = ieee80211_sta_join_ibss(dev, ifsta, bss);
-		ieee80211_rx_bss_put(dev, bss);
+		ieee80211_rx_bss_put(local, bss);
 		return ret;
 	}
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
@@ -3762,28 +3713,45 @@ int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_if_sta *ifsta;
+	int res;
 
 	if (len > IEEE80211_MAX_SSID_LEN)
 		return -EINVAL;
 
 	ifsta = &sdata->u.sta;
 
-	if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
+	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;
 		ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
-	memcpy(ifsta->ssid, ssid, len);
-	memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len);
-	ifsta->ssid_len = len;
+
+		res = 0;
+		/*
+		 * Hack! MLME code needs to be cleaned up to have different
+		 * entry points for configuration and internal selection change
+		 */
+		if (netif_running(sdata->dev))
+			res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
+		if (res) {
+			printk(KERN_DEBUG "%s: Failed to config new SSID to "
+			       "the low-level driver\n", dev->name);
+			return res;
+		}
+	}
 
 	if (len)
 		ifsta->flags |= IEEE80211_STA_SSID_SET;
 	else
 		ifsta->flags &= ~IEEE80211_STA_SSID_SET;
+
 	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
 	    !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
 		ifsta->ibss_join_req = jiffies;
 		ifsta->state = IEEE80211_IBSS_SEARCH;
 		return ieee80211_sta_find_ibss(dev, ifsta);
 	}
+
 	return 0;
 }
 
@@ -3809,7 +3777,12 @@ int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid)
 
 	if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
 		memcpy(ifsta->bssid, bssid, ETH_ALEN);
-		res = ieee80211_if_config(dev);
+		res = 0;
+		/*
+		 * Hack! See also ieee80211_sta_set_ssid.
+		 */
+		if (netif_running(sdata->dev))
+			res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
 		if (res) {
 			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
 			       "the low-level driver\n", dev->name);
@@ -3907,11 +3880,6 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-
-		/* No need to wake the master device. */
-		if (sdata->dev == local->mdev)
-			continue;
-
 		/* Tell AP we're back */
 		if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
 		    sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
@@ -4077,12 +4045,6 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-
-		/* Don't stop the master interface, otherwise we can't transmit
-		 * probes! */
-		if (sdata->dev == local->mdev)
-			continue;
-
 		netif_stop_queue(sdata->dev);
 		if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
 		    (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
@@ -4398,7 +4360,7 @@ struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
 		return NULL;
 	}
 
-	if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid))
+	if (compare_ether_addr(bssid, sdata->u.sta.bssid))
 		return NULL;
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -4473,12 +4435,10 @@ void ieee80211_notify_mac(struct ieee80211_hw *hw,
 	case IEEE80211_NOTIFY_RE_ASSOC:
 		rcu_read_lock();
 		list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+			if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
+				continue;
 
-			if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
-				ieee80211_sta_req_auth(sdata->dev,
-						       &sdata->u.sta);
-			}
-
+			ieee80211_sta_req_auth(sdata->dev, &sdata->u.sta);
 		}
 		rcu_read_unlock();
 		break;
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 742c5b0..a914ba7 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -259,8 +259,8 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 
 	/* Don't update the state if we're not controlling the rate. */
 	sdata = sta->sdata;
-	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
-		sta->txrate_idx = sdata->bss->max_ratectrl_rateidx;
+	if (sdata->force_unicast_rateidx > -1) {
+		sta->txrate_idx = sdata->max_ratectrl_rateidx;
 		goto unlock;
 	}
 
@@ -337,8 +337,8 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
 
 	/* If a forced rate is in effect, select it. */
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
-		sta->txrate_idx = sdata->bss->force_unicast_rateidx;
+	if (sdata->force_unicast_rateidx > -1)
+		sta->txrate_idx = sdata->force_unicast_rateidx;
 
 	rateidx = sta->txrate_idx;
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index fab443d..6d9ae67c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -334,13 +334,18 @@ static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
 		else
 			rx->flags &= ~IEEE80211_RX_AMSDU;
 	} else {
-		if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
-			/* Separate TID for management frames */
-			tid = NUM_RX_DATA_QUEUES - 1;
-		} else {
-			/* no qos control present */
-			tid = 0; /* 802.1d - Best Effort */
-		}
+		/*
+		 * IEEE 802.11-2007, 7.1.3.4.1 ("Sequence Number field"):
+		 *
+		 *	Sequence numbers for management frames, QoS data
+		 *	frames with a broadcast/multicast address in the
+		 *	Address 1 field, and all non-QoS data frames sent
+		 *	by QoS STAs are assigned using an additional single
+		 *	modulo-4096 counter, [...]
+		 *
+		 * We also use that counter for non-QoS STAs.
+		 */
+		tid = NUM_RX_DATA_QUEUES - 1;
 	}
 
 	rx->queue = tid;
@@ -647,8 +652,7 @@ static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
 
 	sdata = sta->sdata;
 
-	if (sdata->bss)
-		atomic_inc(&sdata->bss->num_sta_ps);
+	atomic_inc(&sdata->bss->num_sta_ps);
 	set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
@@ -667,8 +671,7 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
 
 	sdata = sta->sdata;
 
-	if (sdata->bss)
-		atomic_dec(&sdata->bss->num_sta_ps);
+	atomic_dec(&sdata->bss->num_sta_ps);
 
 	clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL);
 
@@ -742,7 +745,9 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 	sta->last_qual = rx->status->qual;
 	sta->last_noise = rx->status->noise;
 
-	if (!ieee80211_has_morefrags(hdr->frame_control)) {
+	if (!ieee80211_has_morefrags(hdr->frame_control) &&
+	    (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP ||
+	     rx->sdata->vif.type == IEEE80211_IF_TYPE_VLAN)) {
 		/* Change STA power saving mode only in the end of a frame
 		 * exchange sequence */
 		if (test_sta_flags(sta, WLAN_STA_PS) &&
@@ -1772,11 +1777,6 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 				return 0;
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		}
-		if (sdata->dev == sdata->local->mdev &&
-		    !(rx->flags & IEEE80211_RX_IN_SCAN))
-			/* do not receive anything via
-			 * master device when not scanning */
-			return 0;
 		break;
 	case IEEE80211_IF_TYPE_WDS:
 		if (bssid || !ieee80211_is_data(hdr->frame_control))
@@ -2046,8 +2046,8 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 
 	tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
 
-	/* null data frames are excluded */
-	if (unlikely(ieee80211_is_nullfunc(hdr->frame_control)))
+	/* qos null data frames are excluded */
+	if (unlikely(hdr->frame_control & cpu_to_le16(IEEE80211_STYPE_NULLFUNC)))
 		goto end_reorder;
 
 	/* new un-ordered ampdu frame - process it */
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 47d2c1b..f2ba653 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -320,7 +320,9 @@ int sta_info_insert(struct sta_info *sta)
 	/* notify driver */
 	if (local->ops->sta_notify) {
 		if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
-			sdata = sdata->u.vlan.ap;
+			sdata = container_of(sdata->bss,
+					     struct ieee80211_sub_if_data,
+					     u.ap);
 
 		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
 				       STA_NOTIFY_ADD, sta->addr);
@@ -375,8 +377,10 @@ static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
 static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
 				   struct sta_info *sta)
 {
-	if (bss)
-		__bss_tim_set(bss, sta->aid);
+	BUG_ON(!bss);
+
+	__bss_tim_set(bss, sta->aid);
+
 	if (sta->local->ops->set_tim) {
 		sta->local->tim_in_locked_section = true;
 		sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 1);
@@ -388,6 +392,8 @@ void sta_info_set_tim_bit(struct sta_info *sta)
 {
 	unsigned long flags;
 
+	BUG_ON(!sta->sdata->bss);
+
 	spin_lock_irqsave(&sta->local->sta_lock, flags);
 	__sta_info_set_tim_bit(sta->sdata->bss, sta);
 	spin_unlock_irqrestore(&sta->local->sta_lock, flags);
@@ -396,8 +402,10 @@ void sta_info_set_tim_bit(struct sta_info *sta)
 static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
 				     struct sta_info *sta)
 {
-	if (bss)
-		__bss_tim_clear(bss, sta->aid);
+	BUG_ON(!bss);
+
+	__bss_tim_clear(bss, sta->aid);
+
 	if (sta->local->ops->set_tim) {
 		sta->local->tim_in_locked_section = true;
 		sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 0);
@@ -409,6 +417,8 @@ void sta_info_clear_tim_bit(struct sta_info *sta)
 {
 	unsigned long flags;
 
+	BUG_ON(!sta->sdata->bss);
+
 	spin_lock_irqsave(&sta->local->sta_lock, flags);
 	__sta_info_clear_tim_bit(sta->sdata->bss, sta);
 	spin_unlock_irqrestore(&sta->local->sta_lock, flags);
@@ -437,8 +447,9 @@ void __sta_info_unlink(struct sta_info **sta)
 	list_del(&(*sta)->list);
 
 	if (test_and_clear_sta_flags(*sta, WLAN_STA_PS)) {
-		if (sdata->bss)
-			atomic_dec(&sdata->bss->num_sta_ps);
+		BUG_ON(!sdata->bss);
+
+		atomic_dec(&sdata->bss->num_sta_ps);
 		__sta_info_clear_tim_bit(sdata->bss, *sta);
 	}
 
@@ -446,7 +457,9 @@ void __sta_info_unlink(struct sta_info **sta)
 
 	if (local->ops->sta_notify) {
 		if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
-			sdata = sdata->u.vlan.ap;
+			sdata = container_of(sdata->bss,
+					     struct ieee80211_sub_if_data,
+					     u.ap);
 
 		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
 				       STA_NOTIFY_REMOVE, (*sta)->addr);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 94311dc..109db78 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -285,6 +285,7 @@ struct sta_info {
 	unsigned long tx_fragments;
 	int txrate_idx;
 	int last_txrate_idx;
+	u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 	unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
 #endif
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 9bd9faa..0fbadd8 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -38,16 +38,6 @@
 
 /* misc utils */
 
-static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
-					      struct ieee80211_hdr *hdr)
-{
-	/* Set the sequence number for this frame. */
-	hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
-
-	/* Increase the sequence number. */
-	sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
-}
-
 #ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
 static void ieee80211_dump_frame(const char *ifname, const char *title,
 				 const struct sk_buff *skb)
@@ -274,17 +264,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
 	return TX_CONTINUE;
 }
 
-static ieee80211_tx_result debug_noinline
-ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-
-	if (ieee80211_hdrlen(hdr->frame_control) >= 24)
-		ieee80211_include_sequence(tx->sdata, hdr);
-
-	return TX_CONTINUE;
-}
-
 /* This function is called whenever the AP is about to exceed the maximum limit
  * of buffered frames for power saving STAs. This situation should not really
  * happen often during normal operation, so dropping the oldest buffered packet
@@ -303,8 +282,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		struct ieee80211_if_ap *ap;
-		if (sdata->dev == local->mdev ||
-		    sdata->vif.type != IEEE80211_IF_TYPE_AP)
+		if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
 			continue;
 		ap = &sdata->u.ap;
 		skb = skb_dequeue(&ap->ps_bc_buf);
@@ -346,8 +324,12 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 	 * This is done either by the hardware or us.
 	 */
 
-	/* not AP/IBSS or ordered frame */
-	if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
+	/* powersaving STAs only in AP/VLAN mode */
+	if (!tx->sdata->bss)
+		return TX_CONTINUE;
+
+	/* no buffering for ordered frames */
+	if (tx->fc & IEEE80211_FCTL_ORDER)
 		return TX_CONTINUE;
 
 	/* no stations in PS mode */
@@ -639,6 +621,49 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
 }
 
 static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+	u16 *seq;
+	u8 *qc;
+	int tid;
+
+	/* only for injected frames */
+	if (unlikely(ieee80211_is_ctl(hdr->frame_control)))
+		return TX_CONTINUE;
+
+	if (ieee80211_hdrlen(hdr->frame_control) < 24)
+		return TX_CONTINUE;
+
+	if (!ieee80211_is_data_qos(hdr->frame_control)) {
+		info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
+		return TX_CONTINUE;
+	}
+
+	/*
+	 * This should be true for injected/management frames only, for
+	 * management frames we have set the IEEE80211_TX_CTL_ASSIGN_SEQ
+	 * above since they are not QoS-data frames.
+	 */
+	if (!tx->sta)
+		return TX_CONTINUE;
+
+	/* include per-STA, per-TID sequence counter */
+
+	qc = ieee80211_get_qos_ctl(hdr);
+	tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
+	seq = &tx->sta->tid_seq[tid];
+
+	hdr->seq_ctrl = cpu_to_le16(*seq);
+
+	/* Increase the sequence number. */
+	*seq = (*seq + 0x10) & IEEE80211_SCTL_SEQ;
+
+	return TX_CONTINUE;
+}
+
+static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
@@ -1107,12 +1132,12 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
 		goto txh_done;
 
 	CALL_TXH(ieee80211_tx_h_check_assoc)
-	CALL_TXH(ieee80211_tx_h_sequence)
 	CALL_TXH(ieee80211_tx_h_ps_buf)
 	CALL_TXH(ieee80211_tx_h_select_key)
 	CALL_TXH(ieee80211_tx_h_michael_mic_add)
 	CALL_TXH(ieee80211_tx_h_rate_ctrl)
 	CALL_TXH(ieee80211_tx_h_misc)
+	CALL_TXH(ieee80211_tx_h_sequence)
 	CALL_TXH(ieee80211_tx_h_fragment)
 	/* handlers after fragment must be aware of tx info fragmentation! */
 	CALL_TXH(ieee80211_tx_h_encrypt)
@@ -1785,17 +1810,17 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
 	struct ieee80211_tx_info *info;
 	struct net_device *bdev;
 	struct ieee80211_sub_if_data *sdata = NULL;
 	struct ieee80211_if_ap *ap = NULL;
+	struct ieee80211_if_sta *ifsta = NULL;
 	struct rate_selection rsel;
 	struct beacon_data *beacon;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_mgmt *mgmt;
 	int *num_beacons;
-	bool err = true;
 	enum ieee80211_band band = local->hw.conf.channel->band;
 	u8 *pos;
 
@@ -1824,9 +1849,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 			memcpy(skb_put(skb, beacon->head_len), beacon->head,
 			       beacon->head_len);
 
-			ieee80211_include_sequence(sdata,
-					(struct ieee80211_hdr *)skb->data);
-
 			/*
 			 * Not very nice, but we want to allow the driver to call
 			 * ieee80211_beacon_get() as a response to the set_tim()
@@ -1849,9 +1871,24 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 				       beacon->tail, beacon->tail_len);
 
 			num_beacons = &ap->num_beacons;
+		} else
+			goto out;
+	} else if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+		struct ieee80211_hdr *hdr;
+		ifsta = &sdata->u.sta;
 
-			err = false;
-		}
+		if (!ifsta->probe_resp)
+			goto out;
+
+		skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC);
+		if (!skb)
+			goto out;
+
+		hdr = (struct ieee80211_hdr *) skb->data;
+		hdr->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+						  IEEE80211_STYPE_BEACON);
+
+		num_beacons = &ifsta->num_beacons;
 	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		/* headroom, head length, tail length and maximum TIM length */
 		skb = dev_alloc_skb(local->tx_headroom + 400);
@@ -1878,17 +1915,8 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 		mesh_mgmt_ies_add(skb, sdata->dev);
 
 		num_beacons = &sdata->u.sta.num_beacons;
-
-		err = false;
-	}
-
-	if (err) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-		if (net_ratelimit())
-			printk(KERN_DEBUG "no beacon data avail for %s\n",
-			       bdev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-		skb = NULL;
+	} else {
+		WARN_ON(1);
 		goto out;
 	}
 
@@ -1910,14 +1938,18 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 
 	info->control.vif = vif;
 	info->tx_rate_idx = rsel.rate_idx;
+
+	info->flags |= IEEE80211_TX_CTL_NO_ACK;
+	info->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT;
+	info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+	info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
 	if (sdata->bss_conf.use_short_preamble &&
 	    sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
 		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
+
 	info->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
-	info->flags |= IEEE80211_TX_CTL_NO_ACK;
-	info->flags |= IEEE80211_TX_CTL_DO_NOT_ENCRYPT;
 	info->control.retry_limit = 1;
-	info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+
 	(*num_beacons)++;
 out:
 	rcu_read_unlock();
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ce62b16..89ce4e0 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -428,8 +428,6 @@ void ieee80211_iterate_active_interfaces(
 		case IEEE80211_IF_TYPE_MESH_POINT:
 			break;
 		}
-		if (sdata->dev == local->mdev)
-			continue;
 		if (netif_running(sdata->dev))
 			iterator(data, sdata->dev->dev_addr,
 				 &sdata->vif);
@@ -463,8 +461,6 @@ void ieee80211_iterate_active_interfaces_atomic(
 		case IEEE80211_IF_TYPE_MESH_POINT:
 			break;
 		}
-		if (sdata->dev == local->mdev)
-			continue;
 		if (netif_running(sdata->dev))
 			iterator(data, sdata->dev->dev_addr,
 				 &sdata->vif);
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 736c32e..34fa8ed 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -296,15 +296,7 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
 		return -EINVAL;
 	}
 
-	if (type == sdata->vif.type)
-		return 0;
-	if (netif_running(dev))
-		return -EBUSY;
-
-	ieee80211_if_reinit(dev);
-	ieee80211_if_set_type(dev, type);
-
-	return 0;
+	return ieee80211_if_change_type(sdata, type);
 }
 
 
@@ -452,7 +444,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 		memset(sdata->u.ap.ssid + len, 0,
 		       IEEE80211_MAX_SSID_LEN - len);
 		sdata->u.ap.ssid_len = len;
-		return ieee80211_if_config(dev);
+		return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
 	}
 	return -EOPNOTSUPP;
 }
@@ -627,16 +619,14 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 	struct ieee80211_supported_band *sband;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (!sdata->bss)
-		return -ENODEV;
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
 	/* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 	 * target_rate = X, rate->fixed = 1 means only rate X
 	 * target_rate = X, rate->fixed = 0 means all rates <= X */
-	sdata->bss->max_ratectrl_rateidx = -1;
-	sdata->bss->force_unicast_rateidx = -1;
+	sdata->max_ratectrl_rateidx = -1;
+	sdata->force_unicast_rateidx = -1;
 	if (rate->value < 0)
 		return 0;
 
@@ -645,9 +635,9 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 		int this_rate = brate->bitrate;
 
 		if (target_rate == this_rate) {
-			sdata->bss->max_ratectrl_rateidx = i;
+			sdata->max_ratectrl_rateidx = i;
 			if (rate->fixed)
-				sdata->bss->force_unicast_rateidx = i;
+				sdata->force_unicast_rateidx = i;
 			err = 0;
 			break;
 		}
@@ -1009,6 +999,45 @@ static int ieee80211_ioctl_giwencode(struct net_device *dev,
 	return 0;
 }
 
+static int ieee80211_ioctl_siwpower(struct net_device *dev,
+				    struct iw_request_info *info,
+				    struct iw_param *wrq,
+				    char *extra)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_conf *conf = &local->hw.conf;
+
+	if (wrq->disabled) {
+		conf->flags &= ~IEEE80211_CONF_PS;
+		return ieee80211_hw_config(local);
+	}
+
+	switch (wrq->flags & IW_POWER_MODE) {
+	case IW_POWER_ON:       /* If not specified */
+	case IW_POWER_MODE:     /* If set all mask */
+	case IW_POWER_ALL_R:    /* If explicitely state all */
+		conf->flags |= IEEE80211_CONF_PS;
+		break;
+	default:                /* Otherwise we don't support it */
+		return -EINVAL;
+	}
+
+	return ieee80211_hw_config(local);
+}
+
+static int ieee80211_ioctl_giwpower(struct net_device *dev,
+				    struct iw_request_info *info,
+				    union iwreq_data *wrqu,
+				    char *extra)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_conf *conf = &local->hw.conf;
+
+	wrqu->power.disabled = !(conf->flags & IEEE80211_CONF_PS);
+
+	return 0;
+}
+
 static int ieee80211_ioctl_siwauth(struct net_device *dev,
 				   struct iw_request_info *info,
 				   struct iw_param *data, char *extra)
@@ -1211,8 +1240,8 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) ieee80211_ioctl_giwretry,		/* SIOCGIWRETRY */
 	(iw_handler) ieee80211_ioctl_siwencode,		/* SIOCSIWENCODE */
 	(iw_handler) ieee80211_ioctl_giwencode,		/* SIOCGIWENCODE */
-	(iw_handler) NULL,				/* SIOCSIWPOWER */
-	(iw_handler) NULL,				/* SIOCGIWPOWER */
+	(iw_handler) ieee80211_ioctl_siwpower,		/* SIOCSIWPOWER */
+	(iw_handler) ieee80211_ioctl_giwpower,		/* SIOCGIWPOWER */
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) ieee80211_ioctl_siwgenie,		/* SIOCSIWGENIE */
diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index 7927090..ab015c6 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -29,3 +29,14 @@ config WIRELESS_EXT
 
 	  Say N (if you can) unless you know you need wireless
 	  extensions for external modules.
+
+config WIRELESS_EXT_SYSFS
+	bool "Wireless extensions sysfs files"
+	default y
+	depends on WIRELESS_EXT && SYSFS
+	help
+	  This option enables the deprecated wireless statistics
+	  files in /sys/class/net/*/wireless/. The same information
+	  is available via the ioctls as well.
+
+	  Say Y if you have programs using it (we don't know of any).