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

27 files changed, 876 insertions, 560 deletions

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 07656d8..bc064d7 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -16,12 +16,12 @@
 #include <linux/ieee80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 
 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 				    u16 initiator, u16 reason)
 {
 	struct ieee80211_local *local = sta->local;
-	struct ieee80211_hw *hw = &local->hw;
 	int i;
 
 	/* check if TID is in operational state */
@@ -41,8 +41,8 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 	       sta->sta.addr, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
-	if (local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
-				     &sta->sta, tid, NULL))
+	if (drv_ampdu_action(local, IEEE80211_AMPDU_RX_STOP,
+			     &sta->sta, tid, NULL))
 		printk(KERN_DEBUG "HW problem - can not stop rx "
 				"aggregation for tid %d\n", tid);
 
@@ -68,6 +68,7 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 	spin_lock_bh(&sta->lock);
 	/* free resources */
 	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
+	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_time);
 
 	if (!sta->ampdu_mlme.tid_rx[tid]->shutdown) {
 		kfree(sta->ampdu_mlme.tid_rx[tid]);
@@ -268,19 +269,23 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 	/* prepare reordering buffer */
 	tid_agg_rx->reorder_buf =
 		kcalloc(buf_size, sizeof(struct sk_buff *), GFP_ATOMIC);
-	if (!tid_agg_rx->reorder_buf) {
+	tid_agg_rx->reorder_time =
+		kcalloc(buf_size, sizeof(unsigned long), GFP_ATOMIC);
+	if (!tid_agg_rx->reorder_buf || !tid_agg_rx->reorder_time) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		if (net_ratelimit())
 			printk(KERN_ERR "can not allocate reordering buffer "
 			       "to tid %d\n", tid);
 #endif
+		kfree(tid_agg_rx->reorder_buf);
+		kfree(tid_agg_rx->reorder_time);
 		kfree(sta->ampdu_mlme.tid_rx[tid]);
+		sta->ampdu_mlme.tid_rx[tid] = NULL;
 		goto end;
 	}
 
-	if (local->ops->ampdu_action)
-		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
-					       &sta->sta, tid, &start_seq_num);
+	ret = drv_ampdu_action(local, IEEE80211_AMPDU_RX_START,
+			       &sta->sta, tid, &start_seq_num);
 #ifdef CONFIG_MAC80211_HT_DEBUG
 	printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 947aaaa..43d00ff 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -16,6 +16,7 @@
 #include <linux/ieee80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "wme.h"
 
 /**
@@ -134,8 +135,8 @@ static int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
 
-	ret = local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_STOP,
-				       &sta->sta, tid, NULL);
+	ret = drv_ampdu_action(local, IEEE80211_AMPDU_TX_STOP,
+			       &sta->sta, tid, NULL);
 
 	/* HW shall not deny going back to legacy */
 	if (WARN_ON(ret)) {
@@ -306,8 +307,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 
 	start_seq_num = sta->tid_seq[tid];
 
-	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
-				       &sta->sta, tid, &start_seq_num);
+	ret = drv_ampdu_action(local, IEEE80211_AMPDU_TX_START,
+			       &sta->sta, tid, &start_seq_num);
 
 	if (ret) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -418,8 +419,8 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local,
 	ieee80211_agg_splice_finish(local, sta, tid);
 	spin_unlock(&local->ampdu_lock);
 
-	local->ops->ampdu_action(&local->hw, IEEE80211_AMPDU_TX_OPERATIONAL,
-				 &sta->sta, tid, NULL);
+	drv_ampdu_action(local, IEEE80211_AMPDU_TX_OPERATIONAL,
+			 &sta->sta, tid, NULL);
 }
 
 void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 5e1c230..d0ca6da 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -13,6 +13,7 @@
 #include <linux/rcupdate.h>
 #include <net/cfg80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "cfg.h"
 #include "rate.h"
 #include "mesh.h"
@@ -245,12 +246,10 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 		iv32 = key->u.tkip.tx.iv32;
 		iv16 = key->u.tkip.tx.iv16;
 
-		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
-		    sdata->local->ops->get_tkip_seq)
-			sdata->local->ops->get_tkip_seq(
-				local_to_hw(sdata->local),
-				key->conf.hw_key_idx,
-				&iv32, &iv16);
+		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+			drv_get_tkip_seq(sdata->local,
+					 key->conf.hw_key_idx,
+					 &iv32, &iv16);
 
 		seq[0] = iv16 & 0xff;
 		seq[1] = (iv16 >> 8) & 0xff;
@@ -451,18 +450,11 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 	 * This is a kludge. beacon interval should really be part
 	 * of the beacon information.
 	 */
-	if (params->interval && (sdata->local->hw.conf.beacon_int !=
-				 params->interval)) {
-		sdata->local->hw.conf.beacon_int = params->interval;
-		err = ieee80211_hw_config(sdata->local,
-					IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
-		if (err < 0)
-			return err;
-		/*
-		 * We updated some parameter so if below bails out
-		 * it's not an error.
-		 */
-		err = 0;
+	if (params->interval &&
+	    (sdata->vif.bss_conf.beacon_int != params->interval)) {
+		sdata->vif.bss_conf.beacon_int = params->interval;
+		ieee80211_bss_info_change_notify(sdata,
+						 BSS_CHANGED_BEACON_INT);
 	}
 
 	/* Need to have a beacon head if we don't have one yet */
@@ -528,8 +520,9 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 
 	kfree(old);
 
-	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-					  IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+						BSS_CHANGED_BEACON);
+	return 0;
 }
 
 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
@@ -580,7 +573,8 @@ static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 	synchronize_rcu();
 	kfree(old);
 
-	return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
+	return 0;
 }
 
 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
@@ -1120,7 +1114,7 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 	p.cw_max = params->cwmax;
 	p.cw_min = params->cwmin;
 	p.txop = params->txop;
-	if (local->ops->conf_tx(local_to_hw(local), params->queue, &p)) {
+	if (drv_conf_tx(local, params->queue, &p)) {
 		printk(KERN_DEBUG "%s: failed to set TX queue "
 		       "parameters for queue %d\n", local->mdev->name,
 		       params->queue);
@@ -1301,16 +1295,13 @@ static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
+	int err;
 
 	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
-		int err;
+		err = drv_set_rts_threshold(local, wiphy->rts_threshold);
 
-		if (local->ops->set_rts_threshold) {
-			err = local->ops->set_rts_threshold(
-				local_to_hw(local), wiphy->rts_threshold);
-			if (err)
-				return err;
-		}
+		if (err)
+			return err;
 	}
 
 	if (changed & WIPHY_PARAM_RETRY_SHORT)
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 5001328..ac79320 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -10,6 +10,7 @@
 #include <linux/debugfs.h>
 #include <linux/rtnetlink.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "debugfs.h"
 
@@ -70,11 +71,10 @@ static ssize_t tsf_read(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
 {
 	struct ieee80211_local *local = file->private_data;
-	u64 tsf = 0;
+	u64 tsf;
 	char buf[100];
 
-	if (local->ops->get_tsf)
-		tsf = local->ops->get_tsf(local_to_hw(local));
+	tsf = drv_get_tsf(local);
 
 	snprintf(buf, sizeof(buf), "0x%016llx\n", (unsigned long long) tsf);
 
@@ -97,13 +97,13 @@ static ssize_t tsf_write(struct file *file,
 
 	if (strncmp(buf, "reset", 5) == 0) {
 		if (local->ops->reset_tsf) {
-			local->ops->reset_tsf(local_to_hw(local));
+			drv_reset_tsf(local);
 			printk(KERN_INFO "%s: debugfs reset TSF\n", wiphy_name(local->hw.wiphy));
 		}
 	} else {
 		tsf = simple_strtoul(buf, NULL, 0);
 		if (local->ops->set_tsf) {
-			local->ops->set_tsf(local_to_hw(local), tsf);
+			drv_set_tsf(local, tsf);
 			printk(KERN_INFO "%s: debugfs set TSF to %#018llx\n", wiphy_name(local->hw.wiphy), tsf);
 		}
 	}
@@ -150,14 +150,12 @@ static ssize_t format_devstat_counter(struct ieee80211_local *local,
 	char buf[20];
 	int res;
 
-	if (!local->ops->get_stats)
-		return -EOPNOTSUPP;
-
 	rtnl_lock();
-	res = local->ops->get_stats(local_to_hw(local), &stats);
+	res = drv_get_stats(local, &stats);
 	rtnl_unlock();
-	if (!res)
-		res = printvalue(&stats, buf, sizeof(buf));
+	if (res)
+		return res;
+	res = printvalue(&stats, buf, sizeof(buf));
 	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
 }
 
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
new file mode 100644
index 0000000..3912b53
--- /dev/null
+++ b/net/mac80211/driver-ops.h
@@ -0,0 +1,184 @@
+#ifndef __MAC80211_DRIVER_OPS
+#define __MAC80211_DRIVER_OPS
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+
+static inline int drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
+{
+	return local->ops->tx(&local->hw, skb);
+}
+
+static inline int drv_start(struct ieee80211_local *local)
+{
+	return local->ops->start(&local->hw);
+}
+
+static inline void drv_stop(struct ieee80211_local *local)
+{
+	local->ops->stop(&local->hw);
+}
+
+static inline int drv_add_interface(struct ieee80211_local *local,
+				    struct ieee80211_if_init_conf *conf)
+{
+	return local->ops->add_interface(&local->hw, conf);
+}
+
+static inline void drv_remove_interface(struct ieee80211_local *local,
+					struct ieee80211_if_init_conf *conf)
+{
+	local->ops->remove_interface(&local->hw, conf);
+}
+
+static inline int drv_config(struct ieee80211_local *local, u32 changed)
+{
+	return local->ops->config(&local->hw, changed);
+}
+
+static inline void drv_bss_info_changed(struct ieee80211_local *local,
+					struct ieee80211_vif *vif,
+					struct ieee80211_bss_conf *info,
+					u32 changed)
+{
+	if (local->ops->bss_info_changed)
+		local->ops->bss_info_changed(&local->hw, vif, info, changed);
+}
+
+static inline void drv_configure_filter(struct ieee80211_local *local,
+					unsigned int changed_flags,
+					unsigned int *total_flags,
+					int mc_count,
+					struct dev_addr_list *mc_list)
+{
+	local->ops->configure_filter(&local->hw, changed_flags, total_flags,
+				     mc_count, mc_list);
+}
+
+static inline int drv_set_tim(struct ieee80211_local *local,
+			      struct ieee80211_sta *sta, bool set)
+{
+	if (local->ops->set_tim)
+		return local->ops->set_tim(&local->hw, sta, set);
+	return 0;
+}
+
+static inline int drv_set_key(struct ieee80211_local *local,
+			      enum set_key_cmd cmd, struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta,
+			      struct ieee80211_key_conf *key)
+{
+	return local->ops->set_key(&local->hw, cmd, vif, sta, key);
+}
+
+static inline void drv_update_tkip_key(struct ieee80211_local *local,
+				       struct ieee80211_key_conf *conf,
+				       const u8 *address, u32 iv32,
+				       u16 *phase1key)
+{
+	if (local->ops->update_tkip_key)
+		local->ops->update_tkip_key(&local->hw, conf, address,
+					    iv32, phase1key);
+}
+
+static inline int drv_hw_scan(struct ieee80211_local *local,
+			      struct cfg80211_scan_request *req)
+{
+	return local->ops->hw_scan(&local->hw, req);
+}
+
+static inline void drv_sw_scan_start(struct ieee80211_local *local)
+{
+	if (local->ops->sw_scan_start)
+		local->ops->sw_scan_start(&local->hw);
+}
+
+static inline void drv_sw_scan_complete(struct ieee80211_local *local)
+{
+	if (local->ops->sw_scan_complete)
+		local->ops->sw_scan_complete(&local->hw);
+}
+
+static inline int drv_get_stats(struct ieee80211_local *local,
+				struct ieee80211_low_level_stats *stats)
+{
+	if (!local->ops->get_stats)
+		return -EOPNOTSUPP;
+	return local->ops->get_stats(&local->hw, stats);
+}
+
+static inline void drv_get_tkip_seq(struct ieee80211_local *local,
+				    u8 hw_key_idx, u32 *iv32, u16 *iv16)
+{
+	if (local->ops->get_tkip_seq)
+		local->ops->get_tkip_seq(&local->hw, hw_key_idx, iv32, iv16);
+}
+
+static inline int drv_set_rts_threshold(struct ieee80211_local *local,
+					u32 value)
+{
+	if (local->ops->set_rts_threshold)
+		return local->ops->set_rts_threshold(&local->hw, value);
+	return 0;
+}
+
+static inline void drv_sta_notify(struct ieee80211_local *local,
+				  struct ieee80211_vif *vif,
+				  enum sta_notify_cmd cmd,
+				  struct ieee80211_sta *sta)
+{
+	if (local->ops->sta_notify)
+		local->ops->sta_notify(&local->hw, vif, cmd, sta);
+}
+
+static inline int drv_conf_tx(struct ieee80211_local *local, u16 queue,
+			      const struct ieee80211_tx_queue_params *params)
+{
+	if (local->ops->conf_tx)
+		return local->ops->conf_tx(&local->hw, queue, params);
+	return -EOPNOTSUPP;
+}
+
+static inline int drv_get_tx_stats(struct ieee80211_local *local,
+				   struct ieee80211_tx_queue_stats *stats)
+{
+	return local->ops->get_tx_stats(&local->hw, stats);
+}
+
+static inline u64 drv_get_tsf(struct ieee80211_local *local)
+{
+	if (local->ops->get_tsf)
+		return local->ops->get_tsf(&local->hw);
+	return -1ULL;
+}
+
+static inline void drv_set_tsf(struct ieee80211_local *local, u64 tsf)
+{
+	if (local->ops->set_tsf)
+		local->ops->set_tsf(&local->hw, tsf);
+}
+
+static inline void drv_reset_tsf(struct ieee80211_local *local)
+{
+	if (local->ops->reset_tsf)
+		local->ops->reset_tsf(&local->hw);
+}
+
+static inline int drv_tx_last_beacon(struct ieee80211_local *local)
+{
+	if (local->ops->tx_last_beacon)
+		return local->ops->tx_last_beacon(&local->hw);
+	return 1;
+}
+
+static inline int drv_ampdu_action(struct ieee80211_local *local,
+				   enum ieee80211_ampdu_mlme_action action,
+				   struct ieee80211_sta *sta, u16 tid,
+				   u16 *ssn)
+{
+	if (local->ops->ampdu_action)
+		return local->ops->ampdu_action(&local->hw, action,
+						sta, tid, ssn);
+	return -EOPNOTSUPP;
+}
+#endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 6030e00..aa53768 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -22,6 +22,7 @@
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 
 #define IEEE80211_SCAN_INTERVAL (2 * HZ)
@@ -73,11 +74,11 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_mgmt *mgmt;
 	u8 *pos;
 	struct ieee80211_supported_band *sband;
+	u32 bss_change;
 
-	if (local->ops->reset_tsf) {
-		/* Reset own TSF to allow time synchronization work. */
-		local->ops->reset_tsf(local_to_hw(local));
-	}
+
+	/* Reset own TSF to allow time synchronization work. */
+	drv_reset_tsf(local);
 
 	skb = ifibss->skb;
 	rcu_assign_pointer(ifibss->presp, NULL);
@@ -92,15 +93,12 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	memcpy(ifibss->bssid, bssid, ETH_ALEN);
 
-	local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
-
 	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
-
 	local->oper_channel = chan;
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+
 	sband = local->hw.wiphy->bands[chan->band];
 
 	/* Build IBSS probe response */
@@ -111,7 +109,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	memset(mgmt->da, 0xff, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
 	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
-	mgmt->u.beacon.beacon_int = cpu_to_le16(local->hw.conf.beacon_int);
+	mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
 	mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
 	mgmt->u.beacon.capab_info = cpu_to_le16(capability);
 
@@ -156,8 +154,13 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	rcu_assign_pointer(ifibss->presp, skb);
 
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-				   IEEE80211_IFCC_BEACON_ENABLED);
+	sdata->vif.bss_conf.beacon_int = beacon_int;
+	bss_change = BSS_CHANGED_BEACON_INT;
+	bss_change |= ieee80211_reset_erp_info(sdata);
+	bss_change |= BSS_CHANGED_BSSID;
+	bss_change |= BSS_CHANGED_BEACON;
+	bss_change |= BSS_CHANGED_BEACON_ENABLED;
+	ieee80211_bss_info_change_notify(sdata, bss_change);
 
 	rates = 0;
 	for (i = 0; i < supp_rates_len; i++) {
@@ -181,8 +184,13 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_bss *bss)
 {
+	u16 beacon_int = bss->cbss.beacon_interval;
+
+	if (beacon_int < 10)
+		beacon_int = 10;
+
 	__ieee80211_sta_join_ibss(sdata, bss->cbss.bssid,
-				  bss->cbss.beacon_interval,
+				  beacon_int,
 				  bss->cbss.channel,
 				  bss->supp_rates_len, bss->supp_rates,
 				  bss->cbss.capability,
@@ -307,12 +315,13 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				bitrates[rx_status->rate_idx].bitrate;
 
 		rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
-	} else if (local && local->ops && local->ops->get_tsf)
-		/* second best option: get current TSF */
-		rx_timestamp = local->ops->get_tsf(local_to_hw(local));
-	else
-		/* can't merge without knowing the TSF */
-		rx_timestamp = -1LLU;
+	} else {
+		/*
+		 * second best option: get current TSF
+		 * (will return -1 if not supported)
+		 */
+		rx_timestamp = drv_get_tsf(local);
+	}
 
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "RX beacon SA=%pM BSSID="
@@ -432,14 +441,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
 	       "IBSS networks with same SSID (merge)\n", sdata->dev->name);
 
-	/* XXX maybe racy? */
-	if (sdata->local->scan_req)
-		return;
-
-	memcpy(sdata->local->int_scan_req.ssids[0].ssid,
-	       ifibss->ssid, IEEE80211_MAX_SSID_LEN);
-	sdata->local->int_scan_req.ssids[0].ssid_len = ifibss->ssid_len;
-	ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
+	ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len);
 }
 
 static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
@@ -471,9 +473,6 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 
 	sband = local->hw.wiphy->bands[ifibss->channel->band];
 
-	if (local->hw.conf.beacon_int == 0)
-		local->hw.conf.beacon_int = 100;
-
 	capability = WLAN_CAPABILITY_IBSS;
 
 	if (sdata->default_key)
@@ -487,7 +486,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 		*pos++ = (u8) (rate / 5);
 	}
 
-	__ieee80211_sta_join_ibss(sdata, bssid, local->hw.conf.beacon_int,
+	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
 				  ifibss->channel, sband->n_bitrates,
 				  supp_rates, capability, 0);
 }
@@ -552,15 +551,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
 		       "join\n", sdata->dev->name);
 
-		/* XXX maybe racy? */
-		if (local->scan_req)
-			return;
-
-		memcpy(local->int_scan_req.ssids[0].ssid,
-		       ifibss->ssid, IEEE80211_MAX_SSID_LEN);
-		local->int_scan_req.ssids[0].ssid_len =
-			ifibss->ssid_len;
-		ieee80211_request_scan(sdata, &local->int_scan_req);
+		ieee80211_request_internal_scan(sdata, ifibss->ssid,
+						ifibss->ssid_len);
 	} else if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) {
 		int interval = IEEE80211_SCAN_INTERVAL;
 
@@ -600,10 +592,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	    len < 24 + 2 || !ifibss->presp)
 		return;
 
-	if (local->ops->tx_last_beacon)
-		tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
-	else
-		tx_last_beacon = 1;
+	tx_last_beacon = drv_tx_last_beacon(local);
 
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM"
@@ -786,8 +775,12 @@ void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
 		if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
 			continue;
+		if (!sdata->u.ibss.ssid_len)
+			continue;
 		sdata->u.ibss.last_scan_completed = jiffies;
 		ieee80211_sta_find_ibss(sdata);
 	}
@@ -827,15 +820,14 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 {
 	struct sk_buff *skb;
 
-	memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
-	sdata->u.ibss.ssid_len = params->ssid_len;
-
 	if (params->bssid) {
 		memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
 		sdata->u.ibss.fixed_bssid = true;
 	} else
 		sdata->u.ibss.fixed_bssid = false;
 
+	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
+
 	sdata->u.ibss.channel = params->channel;
 	sdata->u.ibss.fixed_channel = params->channel_fixed;
 
@@ -859,6 +851,19 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 	sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
 	sdata->u.ibss.ibss_join_req = jiffies;
 
+	memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
+
+	/*
+	 * The ssid_len setting below is used to see whether
+	 * we are active, and we need all other settings
+	 * before that may get visible.
+	 */
+	mb();
+
+	sdata->u.ibss.ssid_len = params->ssid_len;
+
+	ieee80211_recalc_idle(sdata->local);
+
 	set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
 	queue_work(sdata->local->hw.workqueue, &sdata->u.ibss.work);
 
@@ -880,12 +885,15 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	kfree(sdata->u.ibss.ie);
 	skb = sdata->u.ibss.presp;
 	rcu_assign_pointer(sdata->u.ibss.presp, NULL);
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 	synchronize_rcu();
 	kfree_skb(skb);
 
 	skb_queue_purge(&sdata->u.ibss.skb_queue);
 	memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
+	sdata->u.ibss.ssid_len = 0;
+
+	ieee80211_recalc_idle(sdata->local);
 
 	return 0;
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 1579bc9..03e0d22 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -248,9 +248,8 @@ struct mesh_preq_queue {
 #define IEEE80211_STA_EXT_SME		BIT(17)
 /* flags for MLME request */
 #define IEEE80211_STA_REQ_SCAN 0
-#define IEEE80211_STA_REQ_DIRECT_PROBE 1
-#define IEEE80211_STA_REQ_AUTH 2
-#define IEEE80211_STA_REQ_RUN  3
+#define IEEE80211_STA_REQ_AUTH 1
+#define IEEE80211_STA_REQ_RUN  2
 
 /* bitfield of allowed auth algs */
 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
@@ -659,6 +658,7 @@ struct ieee80211_local {
 
 
 	/* Scanning and BSS list */
+	struct mutex scan_mtx;
 	bool sw_scanning, hw_scanning;
 	struct cfg80211_ssid scan_ssid;
 	struct cfg80211_scan_request int_scan_req;
@@ -905,7 +905,6 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 
 
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
-int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
@@ -947,6 +946,8 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
 
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
+int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
+				    const u8 *ssid, u8 ssid_len);
 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 			   struct cfg80211_scan_request *req);
 int ieee80211_scan_results(struct ieee80211_local *local,
@@ -960,9 +961,6 @@ int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
 			       const char *ie, size_t len);
 
 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
-void ieee80211_scan_failed(struct ieee80211_local *local);
-int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-			 struct cfg80211_scan_request *req);
 struct ieee80211_bss *
 ieee80211_bss_info_update(struct ieee80211_local *local,
 			  struct ieee80211_rx_status *rx_status,
@@ -987,6 +985,8 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 			     enum nl80211_iftype type);
 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
 void ieee80211_remove_interfaces(struct ieee80211_local *local);
+u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
+void ieee80211_recalc_idle(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 5242597..8b6daf0 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -20,6 +20,7 @@
 #include "debugfs_netdev.h"
 #include "mesh.h"
 #include "led.h"
+#include "driver-ops.h"
 
 /**
  * DOC: Interface list locking
@@ -164,9 +165,7 @@ static int ieee80211_open(struct net_device *dev)
 	}
 
 	if (local->open_count == 0) {
-		res = 0;
-		if (local->ops->start)
-			res = local->ops->start(local_to_hw(local));
+		res = drv_start(local);
 		if (res)
 			goto err_del_bss;
 		/* we're brought up, everything changes */
@@ -199,8 +198,8 @@ static int ieee80211_open(struct net_device *dev)
 	 * Validate the MAC address for this device.
 	 */
 	if (!is_valid_ether_addr(dev->dev_addr)) {
-		if (!local->open_count && local->ops->stop)
-			local->ops->stop(local_to_hw(local));
+		if (!local->open_count)
+			drv_stop(local);
 		return -EADDRNOTAVAIL;
 	}
 
@@ -241,7 +240,7 @@ static int ieee80211_open(struct net_device *dev)
 		conf.vif = &sdata->vif;
 		conf.type = sdata->vif.type;
 		conf.mac_addr = dev->dev_addr;
-		res = local->ops->add_interface(local_to_hw(local), &conf);
+		res = drv_add_interface(local, &conf);
 		if (res)
 			goto err_stop;
 
@@ -302,6 +301,8 @@ static int ieee80211_open(struct net_device *dev)
 	if (sdata->flags & IEEE80211_SDATA_PROMISC)
 		atomic_inc(&local->iff_promiscs);
 
+	hw_reconf_flags |= __ieee80211_recalc_idle(local);
+
 	local->open_count++;
 	if (hw_reconf_flags) {
 		ieee80211_hw_config(local, hw_reconf_flags);
@@ -328,10 +329,10 @@ static int ieee80211_open(struct net_device *dev)
 
 	return 0;
  err_del_interface:
-	local->ops->remove_interface(local_to_hw(local), &conf);
+	drv_remove_interface(local, &conf);
  err_stop:
-	if (!local->open_count && local->ops->stop)
-		local->ops->stop(local_to_hw(local));
+	if (!local->open_count)
+		drv_stop(local);
  err_del_bss:
 	sdata->bss = NULL;
 	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -544,17 +545,20 @@ static int ieee80211_stop(struct net_device *dev)
 		conf.mac_addr = dev->dev_addr;
 		/* disable all keys for as long as this netdev is down */
 		ieee80211_disable_keys(sdata);
-		local->ops->remove_interface(local_to_hw(local), &conf);
+		drv_remove_interface(local, &conf);
 	}
 
 	sdata->bss = NULL;
 
+	hw_reconf_flags |= __ieee80211_recalc_idle(local);
+
+	ieee80211_recalc_ps(local, -1);
+
 	if (local->open_count == 0) {
 		if (netif_running(local->mdev))
 			dev_close(local->mdev);
 
-		if (local->ops->stop)
-			local->ops->stop(local_to_hw(local));
+		drv_stop(local);
 
 		ieee80211_led_radio(local, 0);
 
@@ -567,8 +571,6 @@ static int ieee80211_stop(struct net_device *dev)
 		hw_reconf_flags = 0;
 	}
 
-	ieee80211_recalc_ps(local, -1);
-
 	/* do after stop to avoid reconfiguring when we stop anyway */
 	if (hw_reconf_flags)
 		ieee80211_hw_config(local, hw_reconf_flags);
@@ -894,3 +896,73 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 		unregister_netdevice(sdata->dev);
 	}
 }
+
+static u32 ieee80211_idle_off(struct ieee80211_local *local,
+			      const char *reason)
+{
+	if (!(local->hw.conf.flags & IEEE80211_CONF_IDLE))
+		return 0;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: device no longer idle - %s\n",
+	       wiphy_name(local->hw.wiphy), reason);
+#endif
+
+	local->hw.conf.flags &= ~IEEE80211_CONF_IDLE;
+	return IEEE80211_CONF_CHANGE_IDLE;
+}
+
+static u32 ieee80211_idle_on(struct ieee80211_local *local)
+{
+	if (local->hw.conf.flags & IEEE80211_CONF_IDLE)
+		return 0;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: device now idle\n",
+	       wiphy_name(local->hw.wiphy));
+#endif
+
+	local->hw.conf.flags |= IEEE80211_CONF_IDLE;
+	return IEEE80211_CONF_CHANGE_IDLE;
+}
+
+u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
+{
+	struct ieee80211_sub_if_data *sdata;
+	int count = 0;
+
+	if (local->hw_scanning || local->sw_scanning)
+		return ieee80211_idle_off(local, "scanning");
+
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+		/* do not count disabled managed interfaces */
+		if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+		    sdata->u.mgd.state == IEEE80211_STA_MLME_DISABLED)
+			continue;
+		/* do not count unused IBSS interfaces */
+		if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
+		    !sdata->u.ibss.ssid_len)
+			continue;
+		/* count everything else */
+		count++;
+	}
+
+	if (!count)
+		return ieee80211_idle_on(local);
+	else
+		return ieee80211_idle_off(local, "in use");
+
+	return 0;
+}
+
+void ieee80211_recalc_idle(struct ieee80211_local *local)
+{
+	u32 chg;
+
+	mutex_lock(&local->iflist_mtx);
+	chg = __ieee80211_recalc_idle(local);
+	mutex_unlock(&local->iflist_mtx);
+	ieee80211_hw_config(local, chg);
+}
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 687acf2..b7e1350 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -16,6 +16,7 @@
 #include <linux/rtnetlink.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "debugfs_key.h"
 #include "aes_ccm.h"
 #include "aes_cmac.h"
@@ -136,8 +137,7 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 				     struct ieee80211_sub_if_data,
 				     u.ap);
 
-	ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
-				       &sdata->vif, sta, &key->conf);
+	ret = drv_set_key(key->local, SET_KEY, &sdata->vif, sta, &key->conf);
 
 	if (!ret) {
 		spin_lock(&todo_lock);
@@ -179,8 +179,8 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 				     struct ieee80211_sub_if_data,
 				     u.ap);
 
-	ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
-				       &sdata->vif, sta, &key->conf);
+	ret = drv_set_key(key->local, DISABLE_KEY, &sdata->vif,
+			  sta, &key->conf);
 
 	if (ret)
 		printk(KERN_ERR "mac80211-%s: failed to remove key "
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 5ca62ea..b80bc80 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -26,6 +26,7 @@
 #include <net/cfg80211.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "mesh.h"
 #include "wep.h"
@@ -81,10 +82,9 @@ void ieee80211_configure_filter(struct ieee80211_local *local)
 	/* be a bit nasty */
 	new_flags |= (1<<31);
 
-	local->ops->configure_filter(local_to_hw(local),
-				     changed_flags, &new_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
+	drv_configure_filter(local, changed_flags, &new_flags,
+			     local->mdev->mc_count,
+			     local->mdev->mc_list);
 
 	WARN_ON(new_flags & (1<<31));
 
@@ -152,82 +152,6 @@ static void ieee80211_master_set_multicast_list(struct net_device *dev)
 	ieee80211_configure_filter(local);
 }
 
-/* everything else */
-
-int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_conf conf;
-
-	if (WARN_ON(!netif_running(sdata->dev)))
-		return 0;
-
-	memset(&conf, 0, sizeof(conf));
-
-	if (sdata->vif.type == NL80211_IFTYPE_STATION)
-		conf.bssid = sdata->u.mgd.bssid;
-	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		conf.bssid = sdata->u.ibss.bssid;
-	else if (sdata->vif.type == NL80211_IFTYPE_AP)
-		conf.bssid = sdata->dev->dev_addr;
-	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
-		static const u8 zero[ETH_ALEN] = { 0 };
-		conf.bssid = zero;
-	} else {
-		WARN_ON(1);
-		return -EINVAL;
-	}
-
-	if (!local->ops->config_interface)
-		return 0;
-
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_AP:
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
-		break;
-	default:
-		/* do not warn to simplify caller in scan.c */
-		changed &= ~IEEE80211_IFCC_BEACON_ENABLED;
-		if (WARN_ON(changed & IEEE80211_IFCC_BEACON))
-			return -EINVAL;
-		changed &= ~IEEE80211_IFCC_BEACON;
-		break;
-	}
-
-	if (changed & IEEE80211_IFCC_BEACON_ENABLED) {
-		if (local->sw_scanning) {
-			conf.enable_beacon = false;
-		} else {
-			/*
-			 * Beacon should be enabled, but AP mode must
-			 * check whether there is a beacon configured.
-			 */
-			switch (sdata->vif.type) {
-			case NL80211_IFTYPE_AP:
-				conf.enable_beacon =
-					!!rcu_dereference(sdata->u.ap.beacon);
-				break;
-			case NL80211_IFTYPE_ADHOC:
-				conf.enable_beacon = !!sdata->u.ibss.presp;
-				break;
-			case NL80211_IFTYPE_MESH_POINT:
-				conf.enable_beacon = true;
-				break;
-			default:
-				/* not reached */
-				WARN_ON(1);
-				break;
-			}
-		}
-	}
-
-	conf.changed = changed;
-
-	return local->ops->config_interface(local_to_hw(local),
-					    &sdata->vif, &conf);
-}
-
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 {
 	struct ieee80211_channel *chan;
@@ -268,7 +192,7 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	}
 
 	if (changed && local->open_count) {
-		ret = local->ops->config(local_to_hw(local), changed);
+		ret = drv_config(local, changed);
 		/*
 		 * Goal:
 		 * HW reconfiguration should never fail, the driver has told
@@ -294,17 +218,77 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 
-	if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN))
+	if (!changed)
 		return;
 
-	if (!changed)
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid;
+	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid;
+	else if (sdata->vif.type == NL80211_IFTYPE_AP)
+		sdata->vif.bss_conf.bssid = sdata->dev->dev_addr;
+	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		static const u8 zero[ETH_ALEN] = { 0 };
+		sdata->vif.bss_conf.bssid = zero;
+	} else {
+		WARN_ON(1);
 		return;
+	}
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_MESH_POINT:
+		break;
+	default:
+		/* do not warn to simplify caller in scan.c */
+		changed &= ~BSS_CHANGED_BEACON_ENABLED;
+		if (WARN_ON(changed & BSS_CHANGED_BEACON))
+			return;
+		break;
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		if (local->sw_scanning) {
+			sdata->vif.bss_conf.enable_beacon = false;
+		} else {
+			/*
+			 * Beacon should be enabled, but AP mode must
+			 * check whether there is a beacon configured.
+			 */
+			switch (sdata->vif.type) {
+			case NL80211_IFTYPE_AP:
+				sdata->vif.bss_conf.enable_beacon =
+					!!rcu_dereference(sdata->u.ap.beacon);
+				break;
+			case NL80211_IFTYPE_ADHOC:
+				sdata->vif.bss_conf.enable_beacon =
+					!!rcu_dereference(sdata->u.ibss.presp);
+				break;
+			case NL80211_IFTYPE_MESH_POINT:
+				sdata->vif.bss_conf.enable_beacon = true;
+				break;
+			default:
+				/* not reached */
+				WARN_ON(1);
+				break;
+			}
+		}
+	}
 
-	if (local->ops->bss_info_changed)
-		local->ops->bss_info_changed(local_to_hw(local),
-					     &sdata->vif,
-					     &sdata->vif.bss_conf,
-					     changed);
+	drv_bss_info_changed(local, &sdata->vif,
+			     &sdata->vif.bss_conf, changed);
+
+	/*
+	 * DEPRECATED
+	 *
+	 * ~changed is just there to not do this at resume time
+	 */
+	if (changed & BSS_CHANGED_BEACON_INT && ~changed) {
+		local->hw.conf.beacon_int = sdata->vif.bss_conf.beacon_int;
+		ieee80211_hw_config(local,
+				    _IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
+	}
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
@@ -783,6 +767,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	INIT_LIST_HEAD(&local->interfaces);
 	mutex_init(&local->iflist_mtx);
+	mutex_init(&local->scan_mtx);
 
 	spin_lock_init(&local->key_lock);
 
@@ -970,9 +955,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	debugfs_hw_add(local);
 
-	if (local->hw.conf.beacon_int < 10)
-		local->hw.conf.beacon_int = 100;
-
 	if (local->hw.max_listen_interval == 0)
 		local->hw.max_listen_interval = 1;
 
@@ -1126,6 +1108,7 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 	struct ieee80211_local *local = hw_to_local(hw);
 
 	mutex_destroy(&local->iflist_mtx);
+	mutex_destroy(&local->scan_mtx);
 
 	wiphy_free(local->hw.wiphy);
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 9a3e5de..9000b01 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -417,7 +417,7 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
 
 	free_plinks = mesh_plink_availables(sdata);
 	if (free_plinks != sdata->u.mesh.accepting_plinks)
-		ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON);
+		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
 
 	ifmsh->housekeeping = false;
 	mod_timer(&ifmsh->housekeeping_timer,
@@ -432,8 +432,8 @@ void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 
 	ifmsh->housekeeping = true;
 	queue_work(local->hw.workqueue, &ifmsh->work);
-	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
-				   IEEE80211_IFCC_BEACON_ENABLED);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON |
+						BSS_CHANGED_BEACON_ENABLED);
 }
 
 void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 3610c11..75c4872 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -23,6 +23,7 @@
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "led.h"
 
@@ -487,6 +488,13 @@ static void ieee80211_enable_ps(struct ieee80211_local *local,
 {
 	struct ieee80211_conf *conf = &local->hw.conf;
 
+	/*
+	 * If we are scanning right now then the parameters will
+	 * take effect when scan finishes.
+	 */
+	if (local->hw_scanning || local->sw_scanning)
+		return;
+
 	if (conf->dynamic_ps_timeout > 0 &&
 	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
 		mod_timer(&local->dynamic_ps_timer, jiffies +
@@ -555,7 +563,7 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
 				maxslp = min_t(int, dtimper,
 						    latency / beaconint_us);
 
-			local->hw.conf.max_sleep_interval = maxslp;
+			local->hw.conf.max_sleep_period = maxslp;
 			local->ps_sdata = found;
 		}
 	} else {
@@ -676,11 +684,10 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 		       local->mdev->name, queue, aci, acm, params.aifs, params.cw_min,
 		       params.cw_max, params.txop);
 #endif
-		if (local->ops->conf_tx &&
-		    local->ops->conf_tx(local_to_hw(local), queue, &params)) {
+		if (drv_conf_tx(local, queue, &params) && local->ops->conf_tx)
 			printk(KERN_DEBUG "%s: failed to set TX queue "
-			       "parameters for queue %d\n", local->mdev->name, queue);
-		}
+			       "parameters for queue %d\n", local->mdev->name,
+			       queue);
 	}
 }
 
@@ -835,6 +842,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		sdata->vif.bss_conf.timestamp = bss->cbss.tsf;
 		sdata->vif.bss_conf.dtim_period = bss->dtim_period;
 
+		bss_info_changed |= BSS_CHANGED_BEACON_INT;
 		bss_info_changed |= ieee80211_handle_bss_capability(sdata,
 			bss->cbss.capability, bss->has_erp_value, bss->erp_value);
 
@@ -882,7 +890,8 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: direct probe to AP %pM timed out\n",
 		       sdata->dev->name, ifmgd->bssid);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
-		ieee80211_sta_send_apinfo(sdata);
+		ieee80211_recalc_idle(local);
+		cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
 
 		/*
 		 * Most likely AP is not in the range so remove the
@@ -907,8 +916,6 @@ static void ieee80211_direct_probe(struct ieee80211_sub_if_data *sdata)
 
 	ifmgd->state = IEEE80211_STA_MLME_DIRECT_PROBE;
 
-	set_bit(IEEE80211_STA_REQ_DIRECT_PROBE, &ifmgd->request);
-
 	/* Direct probe is sent to broadcast address as some APs
 	 * will not answer to direct packet in unassociated state.
 	 */
@@ -932,6 +939,7 @@ static void ieee80211_authenticate(struct ieee80211_sub_if_data *sdata)
 		       " timed out\n",
 		       sdata->dev->name, ifmgd->bssid);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_recalc_idle(local);
 		cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
 		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
@@ -1035,6 +1043,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	rcu_read_unlock();
 
+	ieee80211_recalc_idle(local);
+
 	/* channel(_type) changes are handled by ieee80211_hw_config */
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
 
@@ -1115,6 +1125,7 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
 		       " timed out\n",
 		       sdata->dev->name, ifmgd->bssid);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_recalc_idle(local);
 		cfg80211_send_assoc_timeout(sdata->dev, ifmgd->bssid);
 		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
@@ -1135,6 +1146,7 @@ static void ieee80211_associate(struct ieee80211_sub_if_data *sdata)
 		printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
 		       "mixed-cell disabled - abort association\n", sdata->dev->name);
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_recalc_idle(local);
 		return;
 	}
 
@@ -1273,6 +1285,7 @@ static void ieee80211_auth_completed(struct ieee80211_sub_if_data *sdata)
 	if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
 		/* Wait for SME to request association */
 		ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		ieee80211_recalc_idle(sdata->local);
 	} else
 		ieee80211_associate(sdata);
 }
@@ -1509,6 +1522,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
 			/* Wait for SME to decide what to do next */
 			ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+			ieee80211_recalc_idle(local);
 		}
 		return;
 	}
@@ -1730,8 +1744,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
 
 	/* direct probe may be part of the association flow */
-	if (test_and_clear_bit(IEEE80211_STA_REQ_DIRECT_PROBE,
-			       &ifmgd->request)) {
+	if (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE) {
 		printk(KERN_DEBUG "%s direct probe responded\n",
 		       sdata->dev->name);
 		ieee80211_authenticate(sdata);
@@ -1974,10 +1987,8 @@ static void ieee80211_sta_reset_auth(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_local *local = sdata->local;
 
-	if (local->ops->reset_tsf) {
-		/* Reset own TSF to allow time synchronization work. */
-		local->ops->reset_tsf(local_to_hw(local));
-	}
+	/* Reset own TSF to allow time synchronization work. */
+	drv_reset_tsf(local);
 
 	ifmgd->wmm_last_param_set = -1; /* allow any WMM update */
 
@@ -2065,25 +2076,18 @@ static int ieee80211_sta_config_auth(struct ieee80211_sub_if_data *sdata)
 		return 0;
 	} else {
 		if (ifmgd->assoc_scan_tries < IEEE80211_ASSOC_SCANS_MAX_TRIES) {
+
 			ifmgd->assoc_scan_tries++;
-			/* XXX maybe racy? */
-			if (local->scan_req)
-				return -1;
-			memcpy(local->int_scan_req.ssids[0].ssid,
-			       ifmgd->ssid, IEEE80211_MAX_SSID_LEN);
-			if (ifmgd->flags & IEEE80211_STA_AUTO_SSID_SEL)
-				local->int_scan_req.ssids[0].ssid_len = 0;
-			else
-				local->int_scan_req.ssids[0].ssid_len = ifmgd->ssid_len;
 
-			if (ieee80211_start_scan(sdata, &local->int_scan_req))
-				ieee80211_scan_failed(local);
+			ieee80211_request_internal_scan(sdata, ifmgd->ssid,
+							ssid_len);
 
 			ifmgd->state = IEEE80211_STA_MLME_AUTHENTICATE;
 			set_bit(IEEE80211_STA_REQ_AUTH, &ifmgd->request);
 		} else {
 			ifmgd->assoc_scan_tries = 0;
 			ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+			ieee80211_recalc_idle(local);
 		}
 	}
 	return -1;
@@ -2115,14 +2119,8 @@ static void ieee80211_sta_work(struct work_struct *work)
 	    ifmgd->state != IEEE80211_STA_MLME_AUTHENTICATE &&
 	    ifmgd->state != IEEE80211_STA_MLME_ASSOCIATE &&
 	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request)) {
-		/*
-		 * The call to ieee80211_start_scan can fail but ieee80211_request_scan
-		 * (which queued ieee80211_sta_work) did not return an error. Thus, call
-		 * ieee80211_scan_failed here if ieee80211_start_scan fails in order to
-		 * notify the scan requester.
-		 */
-		if (ieee80211_start_scan(sdata, local->scan_req))
-			ieee80211_scan_failed(local);
+		queue_delayed_work(local->hw.workqueue, &local->scan_work,
+				   round_jiffies_relative(0));
 		return;
 	}
 
@@ -2133,6 +2131,8 @@ static void ieee80211_sta_work(struct work_struct *work)
 	} else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifmgd->request))
 		return;
 
+	ieee80211_recalc_idle(local);
+
 	switch (ifmgd->state) {
 	case IEEE80211_STA_MLME_DISABLED:
 		break;
@@ -2291,12 +2291,8 @@ int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
 		ifmgd->flags &= ~IEEE80211_STA_BSSID_SET;
 	}
 
-	if (netif_running(sdata->dev)) {
-		if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
-			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
-			       "the low-level driver\n", sdata->dev->name);
-		}
-	}
+	if (netif_running(sdata->dev))
+		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 
 	return ieee80211_sta_commit(sdata);
 }
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index b38986c..9d3d89a 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -2,6 +2,7 @@
 #include <net/rtnetlink.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "led.h"
 
 int __ieee80211_suspend(struct ieee80211_hw *hw)
@@ -43,8 +44,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-			local->ops->sta_notify(hw, &sdata->vif,
-				STA_NOTIFY_REMOVE, &sta->sta);
+			drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+				       &sta->sta);
 		}
 		spin_unlock_irqrestore(&local->sta_lock, flags);
 	}
@@ -57,7 +58,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 			conf.vif = &sdata->vif;
 			conf.type = sdata->vif.type;
 			conf.mac_addr = sdata->dev->dev_addr;
-			local->ops->remove_interface(hw, &conf);
+			drv_remove_interface(local, &conf);
 		}
 	}
 
@@ -67,7 +68,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 	/* stop hardware */
 	if (local->open_count) {
 		ieee80211_led_radio(local, false);
-		local->ops->stop(hw);
+		drv_stop(local);
 	}
 	return 0;
 }
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 70df3dc..efaf383 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -80,8 +80,7 @@ use_low_rate(struct sk_buff *skb)
 	fc = le16_to_cpu(hdr->frame_control);
 
 	return ((info->flags & IEEE80211_TX_CTL_NO_ACK) ||
-		(fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-		is_multicast_ether_addr(hdr->addr1));
+		(fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA);
 }
 
 
@@ -245,7 +244,10 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
 
 	if (!sta || !mi || use_low_rate(skb)) {
 		ar[0].idx = rate_lowest_index(sband, sta);
-		ar[0].count = mp->max_retry;
+		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+			ar[0].count = 1;
+		else
+			ar[0].count = mp->max_retry;
 		return;
 	}
 
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 01d59a8..6704fb5 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -289,13 +289,15 @@ rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta,
 		info->control.rates[0].count =
 			txrc->hw->conf.short_frame_max_tx_count;
 
-	/* Send management frames and broadcast/multicast data using lowest
-	 * rate. */
+	/* Send management frames and NO_ACK data using lowest rate. */
 	fc = le16_to_cpu(hdr->frame_control);
 	if (!sta || !spinfo ||
 	    (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-	    is_multicast_ether_addr(hdr->addr1)) {
+	    info->flags & IEEE80211_TX_CTL_NO_ACK) {
 		info->control.rates[0].idx = rate_lowest_index(sband, sta);
+		if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+			info->control.rates[0].count = 1;
+
 		return;
 	}
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a5afb79..d052f40 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -19,6 +19,7 @@
 #include <net/ieee80211_radiotap.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "led.h"
 #include "mesh.h"
 #include "wep.h"
@@ -773,9 +774,7 @@ static void ap_sta_ps_start(struct sta_info *sta)
 
 	atomic_inc(&sdata->bss->num_sta_ps);
 	set_and_clear_sta_flags(sta, WLAN_STA_PS, WLAN_STA_PSPOLL);
-	if (local->ops->sta_notify)
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-					STA_NOTIFY_SLEEP, &sta->sta);
+	drv_sta_notify(local, &sdata->vif, STA_NOTIFY_SLEEP, &sta->sta);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n",
 	       sdata->dev->name, sta->sta.addr, sta->sta.aid);
@@ -792,9 +791,7 @@ static int ap_sta_ps_end(struct sta_info *sta)
 	atomic_dec(&sdata->bss->num_sta_ps);
 
 	clear_sta_flags(sta, WLAN_STA_PS | WLAN_STA_PSPOLL);
-	if (local->ops->sta_notify)
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-					STA_NOTIFY_AWAKE, &sta->sta);
+	drv_sta_notify(local, &sdata->vif, STA_NOTIFY_AWAKE, &sta->sta);
 
 	if (!skb_queue_empty(&sta->ps_tx_buf))
 		sta_info_clear_tim_bit(sta);
@@ -2287,6 +2284,43 @@ static inline u16 seq_sub(u16 sq1, u16 sq2)
 }
 
 
+static void ieee80211_release_reorder_frame(struct ieee80211_hw *hw,
+					    struct tid_ampdu_rx *tid_agg_rx,
+					    int index)
+{
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_rate *rate;
+	struct ieee80211_rx_status status;
+
+	if (!tid_agg_rx->reorder_buf[index])
+		goto no_frame;
+
+	/* release the reordered frames to stack */
+	memcpy(&status, tid_agg_rx->reorder_buf[index]->cb, sizeof(status));
+	sband = hw->wiphy->bands[status.band];
+	if (status.flag & RX_FLAG_HT)
+		rate = sband->bitrates; /* TODO: HT rates */
+	else
+		rate = &sband->bitrates[status.rate_idx];
+	__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
+				     &status, rate);
+	tid_agg_rx->stored_mpdu_num--;
+	tid_agg_rx->reorder_buf[index] = NULL;
+
+no_frame:
+	tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+}
+
+
+/*
+ * Timeout (in jiffies) for skb's that are waiting in the RX reorder buffer. If
+ * the skb was added to the buffer longer than this time ago, the earlier
+ * frames that have not yet been received are assumed to be lost and the skb
+ * can be released for processing. This may also release other skb's from the
+ * reorder buffer if there are no additional gaps between the frames.
+ */
+#define HT_RX_REORDER_BUF_TIMEOUT (HZ / 10)
+
 /*
  * As it function blongs to Rx path it must be called with
  * the proper rcu_read_lock protection for its flow.
@@ -2298,12 +2332,8 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 					   u16 mpdu_seq_num,
 					   int bar_req)
 {
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_rx_status status;
 	u16 head_seq_num, buf_size;
 	int index;
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_rate *rate;
 
 	buf_size = tid_agg_rx->buf_size;
 	head_seq_num = tid_agg_rx->head_seq_num;
@@ -2328,28 +2358,8 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 			index = seq_sub(tid_agg_rx->head_seq_num,
 				tid_agg_rx->ssn)
 				% tid_agg_rx->buf_size;
-
-			if (tid_agg_rx->reorder_buf[index]) {
-				/* release the reordered frames to stack */
-				memcpy(&status,
-					tid_agg_rx->reorder_buf[index]->cb,
-					sizeof(status));
-				sband = local->hw.wiphy->bands[status.band];
-				if (status.flag & RX_FLAG_HT) {
-					/* TODO: HT rates */
-					rate = sband->bitrates;
-				} else {
-					rate = &sband->bitrates
-						[status.rate_idx];
-				}
-				__ieee80211_rx_handle_packet(hw,
-					tid_agg_rx->reorder_buf[index],
-					&status, rate);
-				tid_agg_rx->stored_mpdu_num--;
-				tid_agg_rx->reorder_buf[index] = NULL;
-			}
-			tid_agg_rx->head_seq_num =
-				seq_inc(tid_agg_rx->head_seq_num);
+			ieee80211_release_reorder_frame(hw, tid_agg_rx,
+							index);
 		}
 		if (bar_req)
 			return 1;
@@ -2376,26 +2386,50 @@ static u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 
 	/* put the frame in the reordering buffer */
 	tid_agg_rx->reorder_buf[index] = skb;
+	tid_agg_rx->reorder_time[index] = jiffies;
 	memcpy(tid_agg_rx->reorder_buf[index]->cb, rxstatus,
 	       sizeof(*rxstatus));
 	tid_agg_rx->stored_mpdu_num++;
 	/* release the buffer until next missing frame */
 	index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn)
 						% tid_agg_rx->buf_size;
-	while (tid_agg_rx->reorder_buf[index]) {
-		/* release the reordered frame back to stack */
-		memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
-			sizeof(status));
-		sband = local->hw.wiphy->bands[status.band];
-		if (status.flag & RX_FLAG_HT)
-			rate = sband->bitrates; /* TODO: HT rates */
-		else
-			rate = &sband->bitrates[status.rate_idx];
-		__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
-					     &status, rate);
-		tid_agg_rx->stored_mpdu_num--;
-		tid_agg_rx->reorder_buf[index] = NULL;
-		tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+	if (!tid_agg_rx->reorder_buf[index] &&
+	    tid_agg_rx->stored_mpdu_num > 1) {
+		/*
+		 * No buffers ready to be released, but check whether any
+		 * frames in the reorder buffer have timed out.
+		 */
+		int j;
+		int skipped = 1;
+		for (j = (index + 1) % tid_agg_rx->buf_size; j != index;
+		     j = (j + 1) % tid_agg_rx->buf_size) {
+			if (tid_agg_rx->reorder_buf[j] == NULL) {
+				skipped++;
+				continue;
+			}
+			if (!time_after(jiffies, tid_agg_rx->reorder_time[j] +
+					HZ / 10))
+				break;
+
+#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));
+#endif
+			ieee80211_release_reorder_frame(hw, tid_agg_rx, j);
+
+			/*
+			 * Increment the head seq# also for the skipped slots.
+			 */
+			tid_agg_rx->head_seq_num =
+				(tid_agg_rx->head_seq_num + skipped) &
+				SEQ_MASK;
+			skipped = 0;
+		}
+	} else while (tid_agg_rx->reorder_buf[index]) {
+		ieee80211_release_reorder_frame(hw, tid_agg_rx, index);
 		index =	seq_sub(tid_agg_rx->head_seq_num,
 			tid_agg_rx->ssn) % tid_agg_rx->buf_size;
 	}
@@ -2517,6 +2551,18 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 		return;
 	}
 
+	/*
+	 * In theory, the block ack reordering should happen after duplicate
+	 * removal (ieee80211_rx_h_check(), which is an RX handler). As such,
+	 * the call to ieee80211_rx_reorder_ampdu() should really be moved to
+	 * happen as a new RX handler between ieee80211_rx_h_check and
+	 * ieee80211_rx_h_decrypt. This cleanup may eventually happen, but for
+	 * the time being, the call can be here since RX reorder buf processing
+	 * will implicitly skip duplicates. We could, in theory at least,
+	 * process frames that ieee80211_rx_h_passive_scan would drop (e.g.,
+	 * frames from other than operational channel), but that should not
+	 * happen in normal networks.
+	 */
 	if (!ieee80211_rx_reorder_ampdu(local, skb, status))
 		__ieee80211_rx_handle_packet(hw, skb, status, rate);
 
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index f25b07f..c99ef8d 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -21,6 +21,7 @@
 #include <net/iw_handler.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "mesh.h"
 
 #define IEEE80211_PROBE_DELAY (HZ / 33)
@@ -202,18 +203,6 @@ ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 	return RX_QUEUED;
 }
 
-void ieee80211_scan_failed(struct ieee80211_local *local)
-{
-	if (WARN_ON(!local->scan_req))
-		return;
-
-	/* notify cfg80211 about the failed scan */
-	if (local->scan_req != &local->int_scan_req)
-		cfg80211_scan_done(local->scan_req, true);
-
-	local->scan_req = NULL;
-}
-
 /*
  * inform AP that we will go to sleep so that it will buffer the frames
  * while we scan
@@ -274,55 +263,61 @@ static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata)
 	}
 }
 
+static void ieee80211_restore_scan_ies(struct ieee80211_local *local)
+{
+	kfree(local->scan_req->ie);
+	local->scan_req->ie = local->orig_ies;
+	local->scan_req->ie_len = local->orig_ies_len;
+}
+
 void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
+	bool was_hw_scan;
 
-	if (WARN_ON(!local->hw_scanning && !local->sw_scanning))
-		return;
+	mutex_lock(&local->scan_mtx);
 
-	if (WARN_ON(!local->scan_req))
+	if (WARN_ON(!local->hw_scanning && !local->sw_scanning)) {
+		mutex_unlock(&local->scan_mtx);
 		return;
+	}
 
-	if (local->hw_scanning) {
-		kfree(local->scan_req->ie);
-		local->scan_req->ie = local->orig_ies;
-		local->scan_req->ie_len = local->orig_ies_len;
+	if (WARN_ON(!local->scan_req)) {
+		mutex_unlock(&local->scan_mtx);
+		return;
 	}
 
+	if (local->hw_scanning)
+		ieee80211_restore_scan_ies(local);
+
 	if (local->scan_req != &local->int_scan_req)
 		cfg80211_scan_done(local->scan_req, aborted);
 	local->scan_req = NULL;
 
-	if (local->hw_scanning) {
-		local->hw_scanning = false;
-		/*
-		 * Somebody might have requested channel change during scan
-		 * that we won't have acted upon, try now. ieee80211_hw_config
-		 * will set the flag based on actual changes.
-		 */
-		ieee80211_hw_config(local, 0);
-		goto done;
-	}
-
+	was_hw_scan = local->hw_scanning;
+	local->hw_scanning = false;
 	local->sw_scanning = false;
+
+	/* we only have to protect scan_req and hw/sw scan */
+	mutex_unlock(&local->scan_mtx);
+
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+	if (was_hw_scan)
+		goto done;
 
 	netif_tx_lock_bh(local->mdev);
 	netif_addr_lock(local->mdev);
 	local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
-	local->ops->configure_filter(local_to_hw(local),
-				     FIF_BCN_PRBRESP_PROMISC,
-				     &local->filter_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
+	drv_configure_filter(local, FIF_BCN_PRBRESP_PROMISC,
+			     &local->filter_flags,
+			     local->mdev->mc_count,
+			     local->mdev->mc_list);
 
 	netif_addr_unlock(local->mdev);
 	netif_tx_unlock_bh(local->mdev);
 
-	if (local->ops->sw_scan_complete)
-		local->ops->sw_scan_complete(local_to_hw(local));
+	drv_sw_scan_complete(local);
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(sdata, &local->interfaces, list) {
@@ -342,18 +337,160 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 		if (sdata->vif.type == NL80211_IFTYPE_AP ||
 		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
 		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-			ieee80211_if_config(sdata,
-					    IEEE80211_IFCC_BEACON_ENABLED);
+			ieee80211_bss_info_change_notify(
+				sdata, BSS_CHANGED_BEACON_ENABLED);
 	}
 	mutex_unlock(&local->iflist_mtx);
 
  done:
+	ieee80211_recalc_idle(local);
 	ieee80211_mlme_notify_scan_completed(local);
 	ieee80211_ibss_notify_scan_completed(local);
 	ieee80211_mesh_notify_scan_completed(local);
 }
 EXPORT_SYMBOL(ieee80211_scan_completed);
 
+static int ieee80211_start_sw_scan(struct ieee80211_local *local)
+{
+	struct ieee80211_sub_if_data *sdata;
+
+	/*
+	 * Hardware/driver doesn't support hw_scan, so use software
+	 * scanning instead. First send a nullfunc frame with power save
+	 * bit on so that AP will buffer the frames for us while we are not
+	 * listening, then send probe requests to each channel and wait for
+	 * the responses. After all channels are scanned, tune back to the
+	 * original channel and send a nullfunc frame with power save bit
+	 * off to trigger the AP to send us all the buffered frames.
+	 *
+	 * Note that while local->sw_scanning is true everything else but
+	 * nullfunc frames and probe requests will be dropped in
+	 * ieee80211_tx_h_check_assoc().
+	 */
+	drv_sw_scan_start(local);
+
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+
+		/* disable beaconing */
+		if (sdata->vif.type == NL80211_IFTYPE_AP ||
+		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
+		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
+			ieee80211_bss_info_change_notify(
+				sdata, BSS_CHANGED_BEACON_ENABLED);
+
+		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
+				netif_tx_stop_all_queues(sdata->dev);
+				ieee80211_scan_ps_enable(sdata);
+			}
+		} else
+			netif_tx_stop_all_queues(sdata->dev);
+	}
+	mutex_unlock(&local->iflist_mtx);
+
+	local->scan_state = SCAN_SET_CHANNEL;
+	local->scan_channel_idx = 0;
+
+	netif_addr_lock_bh(local->mdev);
+	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
+	drv_configure_filter(local, FIF_BCN_PRBRESP_PROMISC,
+			     &local->filter_flags,
+			     local->mdev->mc_count,
+			     local->mdev->mc_list);
+	netif_addr_unlock_bh(local->mdev);
+
+	/* TODO: start scan as soon as all nullfunc frames are ACKed */
+	queue_delayed_work(local->hw.workqueue, &local->scan_work,
+			   IEEE80211_CHANNEL_TIME);
+
+	return 0;
+}
+
+
+static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
+				  struct cfg80211_scan_request *req)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	int rc;
+
+	if (local->scan_req)
+		return -EBUSY;
+
+	if (local->ops->hw_scan) {
+		u8 *ies;
+		int ielen;
+
+		ies = kmalloc(2 + IEEE80211_MAX_SSID_LEN +
+			      local->scan_ies_len + req->ie_len, GFP_KERNEL);
+		if (!ies)
+			return -ENOMEM;
+
+		ielen = ieee80211_build_preq_ies(local, ies,
+						 req->ie, req->ie_len);
+		local->orig_ies = req->ie;
+		local->orig_ies_len = req->ie_len;
+		req->ie = ies;
+		req->ie_len = ielen;
+	}
+
+	local->scan_req = req;
+	local->scan_sdata = sdata;
+
+	if (req != &local->int_scan_req &&
+	    sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    (ifmgd->state == IEEE80211_STA_MLME_DIRECT_PROBE ||
+	     ifmgd->state == IEEE80211_STA_MLME_AUTHENTICATE ||
+	     ifmgd->state == IEEE80211_STA_MLME_ASSOCIATE)) {
+		/* actually wait for the assoc to finish/time out */
+		set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
+		return 0;
+	}
+
+	if (local->ops->hw_scan)
+		local->hw_scanning = true;
+	else
+		local->sw_scanning = true;
+	/*
+	 * Kicking off the scan need not be protected,
+	 * only the scan variable stuff, since now
+	 * local->scan_req is assigned and other callers
+	 * will abort their scan attempts.
+	 *
+	 * This avoids getting a scan_mtx -> iflist_mtx
+	 * dependency, so that the scan completed calls
+	 * have more locking freedom.
+	 */
+
+	ieee80211_recalc_idle(local);
+	mutex_unlock(&local->scan_mtx);
+
+	if (local->ops->hw_scan)
+		rc = drv_hw_scan(local, local->scan_req);
+	else
+		rc = ieee80211_start_sw_scan(local);
+
+	mutex_lock(&local->scan_mtx);
+
+	if (rc) {
+		if (local->ops->hw_scan) {
+			local->hw_scanning = false;
+			ieee80211_restore_scan_ies(local);
+		} else
+			local->sw_scanning = false;
+
+		ieee80211_recalc_idle(local);
+
+		local->scan_req = NULL;
+		local->scan_sdata = NULL;
+	}
+
+	return rc;
+}
+
 void ieee80211_scan_work(struct work_struct *work)
 {
 	struct ieee80211_local *local =
@@ -363,17 +500,41 @@ void ieee80211_scan_work(struct work_struct *work)
 	int skip, i;
 	unsigned long next_delay = 0;
 
+	mutex_lock(&local->scan_mtx);
+	if (!sdata || !local->scan_req) {
+		mutex_unlock(&local->scan_mtx);
+		return;
+	}
+
+	if (local->scan_req && !(local->sw_scanning || local->hw_scanning)) {
+		struct cfg80211_scan_request *req = local->scan_req;
+		int rc;
+
+		local->scan_req = NULL;
+
+		rc = __ieee80211_start_scan(sdata, req);
+		mutex_unlock(&local->scan_mtx);
+
+		if (rc)
+			ieee80211_scan_completed(&local->hw, true);
+		return;
+	}
+
+	mutex_unlock(&local->scan_mtx);
+
 	/*
 	 * Avoid re-scheduling when the sdata is going away.
 	 */
-	if (!netif_running(sdata->dev))
+	if (!netif_running(sdata->dev)) {
+		ieee80211_scan_completed(&local->hw, true);
 		return;
+	}
 
 	switch (local->scan_state) {
 	case SCAN_SET_CHANNEL:
 		/* if no more bands/channels left, complete scan */
 		if (local->scan_channel_idx >= local->scan_req->n_channels) {
-			ieee80211_scan_completed(local_to_hw(local), false);
+			ieee80211_scan_completed(&local->hw, false);
 			return;
 		}
 		skip = 0;
@@ -422,166 +583,35 @@ void ieee80211_scan_work(struct work_struct *work)
 			   next_delay);
 }
 
-
-int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
-			 struct cfg80211_scan_request *req)
+int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
+			   struct cfg80211_scan_request *req)
 {
-	struct ieee80211_local *local = scan_sdata->local;
-	struct ieee80211_sub_if_data *sdata;
-
-	if (!req)
-		return -EINVAL;
-
-	if (local->scan_req && local->scan_req != req)
-		return -EBUSY;
-
-	local->scan_req = req;
+	int res;
 
-	/* MLME-SCAN.request (page 118)  page 144 (11.1.3.1)
-	 * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
-	 * BSSID: MACAddress
-	 * SSID
-	 * ScanType: ACTIVE, PASSIVE
-	 * ProbeDelay: delay (in microseconds) to be used prior to transmitting
-	 *    a Probe frame during active scanning
-	 * ChannelList
-	 * MinChannelTime (>= ProbeDelay), in TU
-	 * MaxChannelTime: (>= MinChannelTime), in TU
-	 */
+	mutex_lock(&sdata->local->scan_mtx);
+	res = __ieee80211_start_scan(sdata, req);
+	mutex_unlock(&sdata->local->scan_mtx);
 
-	 /* MLME-SCAN.confirm
-	  * BSSDescriptionSet
-	  * ResultCode: SUCCESS, INVALID_PARAMETERS
-	 */
-
-	if (local->sw_scanning || local->hw_scanning) {
-		if (local->scan_sdata == scan_sdata)
-			return 0;
-		return -EBUSY;
-	}
-
-	if (local->ops->hw_scan) {
-		u8 *ies;
-		int rc, ielen;
-
-		ies = kmalloc(2 + IEEE80211_MAX_SSID_LEN +
-			      local->scan_ies_len + req->ie_len, GFP_KERNEL);
-		if (!ies)
-			return -ENOMEM;
-
-		ielen = ieee80211_build_preq_ies(local, ies,
-						 req->ie, req->ie_len);
-		local->orig_ies = req->ie;
-		local->orig_ies_len = req->ie_len;
-		req->ie = ies;
-		req->ie_len = ielen;
-
-		local->hw_scanning = true;
-		rc = local->ops->hw_scan(local_to_hw(local), req);
-		if (rc) {
-			local->hw_scanning = false;
-			kfree(ies);
-			req->ie_len = local->orig_ies_len;
-			req->ie = local->orig_ies;
-			return rc;
-		}
-		local->scan_sdata = scan_sdata;
-		return 0;
-	}
-
-	/*
-	 * Hardware/driver doesn't support hw_scan, so use software
-	 * scanning instead. First send a nullfunc frame with power save
-	 * bit on so that AP will buffer the frames for us while we are not
-	 * listening, then send probe requests to each channel and wait for
-	 * the responses. After all channels are scanned, tune back to the
-	 * original channel and send a nullfunc frame with power save bit
-	 * off to trigger the AP to send us all the buffered frames.
-	 *
-	 * Note that while local->sw_scanning is true everything else but
-	 * nullfunc frames and probe requests will be dropped in
-	 * ieee80211_tx_h_check_assoc().
-	 */
-	local->sw_scanning = true;
-	if (local->ops->sw_scan_start)
-		local->ops->sw_scan_start(local_to_hw(local));
-
-	mutex_lock(&local->iflist_mtx);
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (!netif_running(sdata->dev))
-			continue;
-
-		/* disable beaconing */
-		if (sdata->vif.type == NL80211_IFTYPE_AP ||
-		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
-		    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-			ieee80211_if_config(sdata,
-					    IEEE80211_IFCC_BEACON_ENABLED);
-
-		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			if (sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED) {
-				netif_tx_stop_all_queues(sdata->dev);
-				ieee80211_scan_ps_enable(sdata);
-			}
-		} else
-			netif_tx_stop_all_queues(sdata->dev);
-	}
-	mutex_unlock(&local->iflist_mtx);
-
-	local->scan_state = SCAN_SET_CHANNEL;
-	local->scan_channel_idx = 0;
-	local->scan_sdata = scan_sdata;
-	local->scan_req = req;
-
-	netif_addr_lock_bh(local->mdev);
-	local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
-	local->ops->configure_filter(local_to_hw(local),
-				     FIF_BCN_PRBRESP_PROMISC,
-				     &local->filter_flags,
-				     local->mdev->mc_count,
-				     local->mdev->mc_list);
-	netif_addr_unlock_bh(local->mdev);
-
-	/* TODO: start scan as soon as all nullfunc frames are ACKed */
-	queue_delayed_work(local->hw.workqueue, &local->scan_work,
-			   IEEE80211_CHANNEL_TIME);
-
-	return 0;
+	return res;
 }
 
-
-int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
-			   struct cfg80211_scan_request *req)
+int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
+				    const u8 *ssid, u8 ssid_len)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_if_managed *ifmgd;
-
-	if (!req)
-		return -EINVAL;
-
-	if (local->scan_req && local->scan_req != req)
-		return -EBUSY;
-
-	local->scan_req = req;
+	int ret = -EBUSY;
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return ieee80211_start_scan(sdata, req);
+	mutex_lock(&local->scan_mtx);
 
-	/*
-	 * STA has a state machine that might need to defer scanning
-	 * while it's trying to associate/authenticate, therefore we
-	 * queue it up to the state machine in that case.
-	 */
+	/* busy scanning */
+	if (local->scan_req)
+		goto unlock;
 
-	if (local->sw_scanning || local->hw_scanning) {
-		if (local->scan_sdata == sdata)
-			return 0;
-		return -EBUSY;
-	}
-
-	ifmgd = &sdata->u.mgd;
-	set_bit(IEEE80211_STA_REQ_SCAN, &ifmgd->request);
-	queue_work(local->hw.workqueue, &ifmgd->work);
+	memcpy(local->int_scan_req.ssids[0].ssid, ssid, IEEE80211_MAX_SSID_LEN);
+	local->int_scan_req.ssids[0].ssid_len = ssid_len;
 
-	return 0;
+	ret = __ieee80211_start_scan(sdata, &sdata->local->int_scan_req);
+ unlock:
+	mutex_unlock(&local->scan_mtx);
+	return ret;
 }
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 654a8e9..a98ea27 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -19,6 +19,7 @@
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "sta_info.h"
 #include "debugfs_sta.h"
@@ -346,8 +347,7 @@ int sta_info_insert(struct sta_info *sta)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-				       STA_NOTIFY_ADD, &sta->sta);
+		drv_sta_notify(local, &sdata->vif, STA_NOTIFY_ADD, &sta->sta);
 	}
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -405,8 +405,7 @@ static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
 
 	if (sta->local->ops->set_tim) {
 		sta->local->tim_in_locked_section = true;
-		sta->local->ops->set_tim(local_to_hw(sta->local),
-					 &sta->sta, true);
+		drv_set_tim(sta->local, &sta->sta, true);
 		sta->local->tim_in_locked_section = false;
 	}
 }
@@ -431,8 +430,7 @@ static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
 
 	if (sta->local->ops->set_tim) {
 		sta->local->tim_in_locked_section = true;
-		sta->local->ops->set_tim(local_to_hw(sta->local),
-					 &sta->sta, false);
+		drv_set_tim(sta->local, &sta->sta, false);
 		sta->local->tim_in_locked_section = false;
 	}
 }
@@ -482,8 +480,8 @@ static void __sta_info_unlink(struct sta_info **sta)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-				       STA_NOTIFY_REMOVE, &(*sta)->sta);
+		drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+			       &(*sta)->sta);
 	}
 
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -543,9 +541,8 @@ void sta_info_unlink(struct sta_info **sta)
 	spin_unlock_irqrestore(&local->sta_lock, flags);
 }
 
-static inline int sta_info_buffer_expired(struct ieee80211_local *local,
-					  struct sta_info *sta,
-					  struct sk_buff *skb)
+static int sta_info_buffer_expired(struct sta_info *sta,
+				   struct sk_buff *skb)
 {
 	struct ieee80211_tx_info *info;
 	int timeout;
@@ -556,8 +553,9 @@ static inline int sta_info_buffer_expired(struct ieee80211_local *local,
 	info = IEEE80211_SKB_CB(skb);
 
 	/* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
-	timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
-		   15625) * HZ;
+	timeout = (sta->listen_interval *
+		   sta->sdata->vif.bss_conf.beacon_int *
+		   32 / 15625) * HZ;
 	if (timeout < STA_TX_BUFFER_EXPIRE)
 		timeout = STA_TX_BUFFER_EXPIRE;
 	return time_after(jiffies, info->control.jiffies + timeout);
@@ -577,7 +575,7 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
 	for (;;) {
 		spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
 		skb = skb_peek(&sta->ps_tx_buf);
-		if (sta_info_buffer_expired(local, sta, skb))
+		if (sta_info_buffer_expired(sta, skb))
 			skb = __skb_dequeue(&sta->ps_tx_buf);
 		else
 			skb = NULL;
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 31a8990..164b16c 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -88,6 +88,7 @@ struct tid_ampdu_tx {
  * struct tid_ampdu_rx - TID aggregation information (Rx).
  *
  * @reorder_buf: buffer to reorder incoming aggregated MPDUs
+ * @reorder_time: jiffies when skb was added
  * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
  * @head_seq_num: head sequence number in reordering buffer.
  * @stored_mpdu_num: number of MPDUs in reordering buffer
@@ -99,6 +100,7 @@ struct tid_ampdu_tx {
  */
 struct tid_ampdu_rx {
 	struct sk_buff **reorder_buf;
+	unsigned long *reorder_time;
 	struct timer_list session_timer;
 	u16 head_seq_num;
 	u16 stored_mpdu_num;
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index 38fa111..964b7fa 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -13,6 +13,7 @@
 #include <asm/unaligned.h>
 
 #include <net/mac80211.h>
+#include "driver-ops.h"
 #include "key.h"
 #include "tkip.h"
 #include "wep.h"
@@ -307,9 +308,8 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 			if (is_multicast_ether_addr(ra))
 				sta_addr = bcast;
 
-			key->local->ops->update_tkip_key(
-				local_to_hw(key->local), &key->conf,
-				sta_addr, iv32, key->u.tkip.rx[queue].p1k);
+			drv_update_tkip_key(key->local, &key->conf, sta_addr,
+					    iv32, key->u.tkip.rx[queue].p1k);
 		}
 	}
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index e5b148f..5f9a8d7 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -25,6 +25,7 @@
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "led.h"
 #include "mesh.h"
 #include "wep.h"
@@ -557,6 +558,10 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	if (unlikely(!info->control.rates[0].count))
 		info->control.rates[0].count = 1;
 
+	if (WARN_ON_ONCE((info->control.rates[0].count > 1) &&
+			 (info->flags & IEEE80211_TX_CTL_NO_ACK)))
+		info->control.rates[0].count = 1;
+
 	if (is_multicast_ether_addr(hdr->addr1)) {
 		/*
 		 * XXX: verify the rate is in the basic rateset
@@ -1162,7 +1167,7 @@ static int __ieee80211_tx(struct ieee80211_local *local,
 
 		next = skb->next;
 		len = skb->len;
-		ret = local->ops->tx(local_to_hw(local), skb);
+		ret = drv_tx(local, skb);
 		if (WARN_ON(ret != NETDEV_TX_OK && skb->len != len)) {
 			dev_kfree_skb(skb);
 			ret = NETDEV_TX_OK;
@@ -2132,7 +2137,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 		memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
 		/* BSSID is left zeroed, wildcard value */
 		mgmt->u.beacon.beacon_int =
-			cpu_to_le16(local->hw.conf.beacon_int);
+			cpu_to_le16(sdata->vif.bss_conf.beacon_int);
 		mgmt->u.beacon.capab_info = 0x0; /* 0x0 for MPs */
 
 		pos = skb_put(skb, 2);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 61876eb..97b613a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -26,6 +26,7 @@
 #include <net/rtnetlink.h>
 
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 #include "rate.h"
 #include "mesh.h"
 #include "wme.h"
@@ -726,7 +727,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
 	qparam.txop = 0;
 
 	for (i = 0; i < local_to_hw(local)->queues; i++)
-		local->ops->conf_tx(local_to_hw(local), i, &qparam);
+		drv_conf_tx(local, i, &qparam);
 }
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
@@ -1000,7 +1001,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 
 	/* restart hardware */
 	if (local->open_count) {
-		res = local->ops->start(hw);
+		res = drv_start(local);
 
 		ieee80211_led_radio(local, hw->conf.radio_enabled);
 	}
@@ -1013,7 +1014,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 			conf.vif = &sdata->vif;
 			conf.type = sdata->vif.type;
 			conf.mac_addr = sdata->dev->dev_addr;
-			res = local->ops->add_interface(hw, &conf);
+			res = drv_add_interface(local, &conf);
 		}
 	}
 
@@ -1026,8 +1027,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-			local->ops->sta_notify(hw, &sdata->vif,
-				STA_NOTIFY_ADD, &sta->sta);
+			drv_sta_notify(local, &sdata->vif, STA_NOTIFY_ADD,
+				       &sta->sta);
 		}
 		spin_unlock_irqrestore(&local->sta_lock, flags);
 	}
@@ -1045,8 +1046,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	rcu_read_unlock();
 
 	/* setup RTS threshold */
-	if (local->ops->set_rts_threshold)
-		local->ops->set_rts_threshold(hw, hw->wiphy->rts_threshold);
+	drv_set_rts_threshold(local, hw->wiphy->rts_threshold);
 
 	/* reconfigure hardware */
 	ieee80211_hw_config(local, ~0);
@@ -1063,24 +1063,13 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_STATION:
 			/* disable beacon change bits */
-			changed &= ~IEEE80211_IFCC_BEACON;
+			changed &= ~(BSS_CHANGED_BEACON |
+				     BSS_CHANGED_BEACON_ENABLED);
 			/* fall through */
 		case NL80211_IFTYPE_ADHOC:
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_MESH_POINT:
-			/*
-			 * Driver's config_interface can fail if rfkill is
-			 * enabled. Accommodate this return code.
-			 * FIXME: When mac80211 has knowledge of rfkill
-			 * state the code below can change back to:
-			 *   WARN(ieee80211_if_config(sdata, changed));
-			 *   ieee80211_bss_info_change_notify(sdata, ~0);
-			 */
-			if (ieee80211_if_config(sdata, changed))
-				printk(KERN_DEBUG "%s: failed to configure interface during resume\n",
-				       sdata->dev->name);
-			else
-				ieee80211_bss_info_change_notify(sdata, ~0);
+			ieee80211_bss_info_change_notify(sdata, changed);
 			break;
 		case NL80211_IFTYPE_WDS:
 			break;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 1a649da..6b4eb8d 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -185,7 +185,7 @@ static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
 		return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 
-	freq->m = local->hw.conf.channel->center_freq;
+	freq->m = local->oper_channel->center_freq;
 	freq->e = 6;
 
 	return 0;
diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c
index e2d4510..4f5a831 100644
--- a/net/rfkill/rfkill.c
+++ b/net/rfkill/rfkill.c
@@ -75,6 +75,11 @@ static void rfkill_led_trigger_activate(struct led_classdev *led)
 
 	rfkill_led_trigger(rfkill, rfkill->state);
 }
+#else
+static inline void rfkill_led_trigger(struct rfkill *rfkill,
+					enum rfkill_state state)
+{
+}
 #endif /* CONFIG_RFKILL_LEDS */
 
 static void rfkill_uevent(struct rfkill *rfkill)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b1fc982..3c53c5c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3696,9 +3696,9 @@ void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
 				NL80211_CMD_DISASSOCIATE);
 }
 
-void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
-			       struct net_device *netdev, int cmd,
-			       const u8 *addr)
+static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
+				      struct net_device *netdev, int cmd,
+				      const u8 *addr)
 {
 	struct sk_buff *msg;
 	void *hdr;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 139d13f..537af62 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2113,14 +2113,14 @@ void reg_device_remove(struct wiphy *wiphy)
 
 	assert_cfg80211_lock();
 
+	kfree(wiphy->regd);
+
 	if (last_request)
 		request_wiphy = wiphy_idx_to_wiphy(last_request->wiphy_idx);
 
-	kfree(wiphy->regd);
-	if (!last_request || !request_wiphy)
-		return;
-	if (request_wiphy != wiphy)
+	if (!request_wiphy || request_wiphy != wiphy)
 		return;
+
 	last_request->wiphy_idx = WIPHY_IDX_STALE;
 	last_request->country_ie_env = ENVIRON_ANY;
 }
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index dfb53d1..df59440 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -377,18 +377,16 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev,
 			size_t used = dev->wiphy.bss_priv_size + sizeof(*res);
 			size_t ielen = res->pub.len_information_elements;
 
-			if (ksize(found) >= used + ielen) {
+			if (!found->ies_allocated && ksize(found) >= used + ielen) {
 				memcpy(found->pub.information_elements,
 				       res->pub.information_elements, ielen);
 				found->pub.len_information_elements = ielen;
 			} else {
 				u8 *ies = found->pub.information_elements;
 
-				if (found->ies_allocated) {
-					if (ksize(ies) < ielen)
-						ies = krealloc(ies, ielen,
-							       GFP_ATOMIC);
-				} else
+				if (found->ies_allocated)
+					ies = krealloc(ies, ielen, GFP_ATOMIC);
+				else
 					ies = kmalloc(ielen, GFP_ATOMIC);
 
 				if (ies) {