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

Conflicts:
	net/mac80211/pm.c

20 files changed, 1032 insertions, 941 deletions

diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index ecc3faf9f11..9cbf545e95a 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -11,6 +11,22 @@ config MAC80211
 	  This option enables the hardware independent IEEE 802.11
 	  networking stack.
 
+config MAC80211_DEFAULT_PS
+	bool "enable powersave by default"
+	depends on MAC80211
+	default y
+	help
+	  This option enables powersave mode by default.
+
+	  If this causes your applications to misbehave you should fix your
+	  applications instead -- they need to register their network
+	  latency requirement, see Documentation/power/pm_qos_interface.txt.
+
+config MAC80211_DEFAULT_PS_VALUE
+	int
+	default 1 if MAC80211_DEFAULT_PS
+	default 0
+
 menu "Rate control algorithm selection"
 	depends on MAC80211 != n
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e677b751d46..5e1c230744b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1167,7 +1167,8 @@ static int ieee80211_scan(struct wiphy *wiphy,
 
 	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 	    sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
+	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+	    (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
 		return -EOPNOTSUPP;
 
 	return ieee80211_request_scan(sdata, req);
@@ -1267,25 +1268,62 @@ static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
 			    struct cfg80211_deauth_request *req)
 {
-	struct ieee80211_sub_if_data *sdata;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	/* TODO: req->ie */
+	/* TODO: req->ie, req->peer_addr */
 	return ieee80211_sta_deauthenticate(sdata, req->reason_code);
 }
 
 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
 			      struct cfg80211_disassoc_request *req)
 {
-	struct ieee80211_sub_if_data *sdata;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	/* TODO: req->ie */
+	/* TODO: req->ie, req->peer_addr */
 	return ieee80211_sta_disassociate(sdata, req->reason_code);
 }
 
+static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
+			       struct cfg80211_ibss_params *params)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	return ieee80211_ibss_join(sdata, params);
+}
+
+static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	return ieee80211_ibss_leave(sdata);
+}
+
+static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
+		int err;
+
+		if (local->ops->set_rts_threshold) {
+			err = local->ops->set_rts_threshold(
+				local_to_hw(local), wiphy->rts_threshold);
+			if (err)
+				return err;
+		}
+	}
+
+	if (changed & WIPHY_PARAM_RETRY_SHORT)
+		local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
+	if (changed & WIPHY_PARAM_RETRY_LONG)
+		local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+	if (changed &
+	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
+
+	return 0;
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1322,4 +1360,7 @@ struct cfg80211_ops mac80211_config_ops = {
 	.assoc = ieee80211_assoc,
 	.deauth = ieee80211_deauth,
 	.disassoc = ieee80211_disassoc,
+	.join_ibss = ieee80211_join_ibss,
+	.leave_ibss = ieee80211_leave_ibss,
+	.set_wiphy_params = ieee80211_set_wiphy_params,
 };
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 210b9b6fecd..5001328be46 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -52,13 +52,13 @@ static const struct file_operations name## _ops = {			\
 DEBUGFS_READONLY_FILE(frequency, 20, "%d",
 		      local->hw.conf.channel->center_freq);
 DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
-		      local->rts_threshold);
+		      local->hw.wiphy->rts_threshold);
 DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
-		      local->fragmentation_threshold);
+		      local->hw.wiphy->frag_threshold);
 DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
-		      local->hw.conf.short_frame_max_tx_count);
+		      local->hw.wiphy->retry_short);
 DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
-		      local->hw.conf.long_frame_max_tx_count);
+		      local->hw.wiphy->retry_long);
 DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
 		      local->total_ps_buffered);
 DEBUGFS_READONLY_FILE(wep_iv, 20, "%#08x",
diff --git a/net/mac80211/event.c b/net/mac80211/event.c
index 0d95561c0ee..f288d01a634 100644
--- a/net/mac80211/event.c
+++ b/net/mac80211/event.c
@@ -12,12 +12,12 @@
 #include "ieee80211_i.h"
 
 /*
- * indicate a failed Michael MIC to userspace; the passed packet
- * (in the variable hdr) must be long enough to extract the TKIP
- * fields like TSC
+ * Indicate a failed Michael MIC to userspace. If the caller knows the TSC of
+ * the frame that generated the MIC failure (i.e., if it was provided by the
+ * driver or is still in the frame), it should provide that information.
  */
 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
-				     struct ieee80211_hdr *hdr)
+				     struct ieee80211_hdr *hdr, const u8 *tsc)
 {
 	union iwreq_data wrqu;
 	char *buf = kmalloc(128, GFP_ATOMIC);
@@ -34,8 +34,9 @@ void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int ke
 		kfree(buf);
 	}
 
-	/*
-	 * TODO: re-add support for sending MIC failure indication
-	 * with all info via nl80211
-	 */
+	cfg80211_michael_mic_failure(sdata->dev, hdr->addr2,
+				     (hdr->addr1[0] & 0x01) ?
+				     NL80211_KEYTYPE_GROUP :
+				     NL80211_KEYTYPE_PAIRWISE,
+				     keyidx, tsc);
 }
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 4e3c72f20de..0891bfb0699 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -14,7 +14,6 @@
  */
 
 #include <linux/ieee80211.h>
-#include <net/wireless.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 #include "rate.h"
@@ -83,89 +82,6 @@ void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 		ht_cap->mcs.rx_mask[32/8] |= 1;
 }
 
-/*
- * ieee80211_enable_ht should be called only after the operating band
- * has been determined as ht configuration depends on the hw's
- * HT abilities for a specific band.
- */
-u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
-			struct ieee80211_ht_info *hti,
-			u16 ap_ht_cap_flags)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
-	struct ieee80211_bss_ht_conf ht;
-	struct sta_info *sta;
-	u32 changed = 0;
-	bool enable_ht = true, ht_changed;
-	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
-
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	memset(&ht, 0, sizeof(ht));
-
-	/* HT is not supported */
-	if (!sband->ht_cap.ht_supported)
-		enable_ht = false;
-
-	/* check that channel matches the right operating channel */
-	if (local->hw.conf.channel->center_freq !=
-	    ieee80211_channel_to_frequency(hti->control_chan))
-		enable_ht = false;
-
-	if (enable_ht) {
-		channel_type = NL80211_CHAN_HT20;
-
-		if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
-		    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
-		    (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
-			switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
-			case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-				channel_type = NL80211_CHAN_HT40PLUS;
-				break;
-			case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-				channel_type = NL80211_CHAN_HT40MINUS;
-				break;
-			}
-		}
-	}
-
-	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
-		     channel_type != local->hw.conf.channel_type;
-
-	local->oper_channel_type = channel_type;
-
-	if (ht_changed) {
-                /* channel_type change automatically detected */
-		ieee80211_hw_config(local, 0);
-
-		rcu_read_lock();
-
-		sta = sta_info_get(local, ifmgd->bssid);
-		if (sta)
-			rate_control_rate_update(local, sband, sta,
-						 IEEE80211_RC_HT_CHANGED);
-
-		rcu_read_unlock();
-
-        }
-
-	/* disable HT */
-	if (!enable_ht)
-		return 0;
-
-	ht.operation_mode = le16_to_cpu(hti->operation_mode);
-
-	/* if bss configuration changed store the new one */
-	if (memcmp(&sdata->vif.bss_conf.ht, &ht, sizeof(ht))) {
-		changed |= BSS_CHANGED_HT;
-		sdata->vif.bss_conf.ht = ht;
-	}
-
-	return changed;
-}
-
 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta)
 {
 	int i;
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 3201e1f9636..6030e003180 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -59,74 +59,59 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 				    sdata->u.ibss.bssid, 0);
 }
 
-static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
-				     const u8 *bssid, const int beacon_int,
-				     const int freq,
-				     const size_t supp_rates_len,
-				     const u8 *supp_rates,
-				     const u16 capability, u64 tsf)
+static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+				      const u8 *bssid, const int beacon_int,
+				      struct ieee80211_channel *chan,
+				      const size_t supp_rates_len,
+				      const u8 *supp_rates,
+				      const u16 capability, u64 tsf)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
-	int res = 0, rates, i, j;
+	int rates, i, j;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u8 *pos;
 	struct ieee80211_supported_band *sband;
-	union iwreq_data wrqu;
 
 	if (local->ops->reset_tsf) {
 		/* Reset own TSF to allow time synchronization work. */
 		local->ops->reset_tsf(local_to_hw(local));
 	}
 
-	if ((ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) &&
-	   memcmp(ifibss->bssid, bssid, ETH_ALEN) == 0)
-		return res;
+	skb = ifibss->skb;
+	rcu_assign_pointer(ifibss->presp, NULL);
+	synchronize_rcu();
+	skb->data = skb->head;
+	skb->len = 0;
+	skb_reset_tail_pointer(skb);
+	skb_reserve(skb, sdata->local->hw.extra_tx_headroom);
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
-		       "response\n", sdata->dev->name);
-		return -ENOMEM;
-	}
-
-	if (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) {
-		/* Remove possible STA entries from other IBSS networks. */
-		sta_info_flush_delayed(sdata);
-	}
+	if (memcmp(ifibss->bssid, bssid, ETH_ALEN))
+		sta_info_flush(sdata->local, sdata);
 
 	memcpy(ifibss->bssid, bssid, ETH_ALEN);
-	res = ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
-	if (res)
-		return res;
 
 	local->hw.conf.beacon_int = beacon_int >= 10 ? beacon_int : 10;
 
-	sdata->drop_unencrypted = capability &
-		WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
-	res = ieee80211_set_freq(sdata, freq);
+	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-	if (res)
-		return res;
+	ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID);
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	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 */
-
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	mgmt = (struct ieee80211_mgmt *)
-		skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+	mgmt = (void *) skb_put(skb, 24 + sizeof(mgmt->u.beacon));
 	memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_PROBE_RESP);
 	memset(mgmt->da, 0xff, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
 	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
-	mgmt->u.beacon.beacon_int =
-		cpu_to_le16(local->hw.conf.beacon_int);
+	mgmt->u.beacon.beacon_int = cpu_to_le16(local->hw.conf.beacon_int);
 	mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
 	mgmt->u.beacon.capab_info = cpu_to_le16(capability);
 
@@ -147,7 +132,7 @@ static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		pos = skb_put(skb, 2 + 1);
 		*pos++ = WLAN_EID_DS_PARAMS;
 		*pos++ = 1;
-		*pos++ = ieee80211_frequency_to_channel(freq);
+		*pos++ = ieee80211_frequency_to_channel(chan->center_freq);
 	}
 
 	pos = skb_put(skb, 2 + 2);
@@ -165,12 +150,15 @@ static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		memcpy(pos, &supp_rates[8], rates);
 	}
 
-	ifibss->probe_resp = skb;
+	if (ifibss->ie_len)
+		memcpy(skb_put(skb, ifibss->ie_len),
+		       ifibss->ie, ifibss->ie_len);
+
+	rcu_assign_pointer(ifibss->presp, skb);
 
 	ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
 				   IEEE80211_IFCC_BEACON_ENABLED);
 
-
 	rates = 0;
 	for (i = 0; i < supp_rates_len; i++) {
 		int bitrate = (supp_rates[i] & 0x7f) * 5;
@@ -181,27 +169,24 @@ static int __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_sta_def_wmm_params(sdata, supp_rates_len, supp_rates);
 
-	ifibss->flags |= IEEE80211_IBSS_PREV_BSSID_SET;
 	ifibss->state = IEEE80211_IBSS_MLME_JOINED;
-	mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+	mod_timer(&ifibss->timer,
+		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
-	memset(&wrqu, 0, sizeof(wrqu));
-	memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
-	wireless_send_event(sdata->dev, SIOCGIWAP, &wrqu, NULL);
-
-	return res;
+	cfg80211_inform_bss_frame(local->hw.wiphy, local->hw.conf.channel,
+				  mgmt, skb->len, 0, GFP_KERNEL);
+	cfg80211_ibss_joined(sdata->dev, ifibss->bssid, GFP_KERNEL);
 }
 
-static int ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
-				   struct ieee80211_bss *bss)
+static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
+				    struct ieee80211_bss *bss)
 {
-	return __ieee80211_sta_join_ibss(sdata,
-					 bss->cbss.bssid,
-					 bss->cbss.beacon_interval,
-					 bss->cbss.channel->center_freq,
-					 bss->supp_rates_len, bss->supp_rates,
-					 bss->cbss.capability,
-					 bss->cbss.tsf);
+	__ieee80211_sta_join_ibss(sdata, bss->cbss.bssid,
+				  bss->cbss.beacon_interval,
+				  bss->cbss.channel,
+				  bss->supp_rates_len, bss->supp_rates,
+				  bss->cbss.capability,
+				  bss->cbss.tsf);
 }
 
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
@@ -277,7 +262,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		goto put_bss;
 
 	/* we use a fixed BSSID */
-	if (sdata->u.ibss.flags & IEEE80211_IBSS_BSSID_SET)
+	if (sdata->u.ibss.bssid)
 		goto put_bss;
 
 	/* not an IBSS */
@@ -369,13 +354,14 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	struct sta_info *sta;
 	int band = local->hw.conf.channel->band;
 
-	/* TODO: Could consider removing the least recently used entry and
-	 * allow new one to be added. */
+	/*
+	 * XXX: Consider removing the least recently used entry and
+	 * 	allow new one to be added.
+	 */
 	if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: No room for a new IBSS STA "
-			       "entry %pM\n", sdata->dev->name, addr);
-		}
+		if (net_ratelimit())
+			printk(KERN_DEBUG "%s: No room for a new IBSS STA entry %pM\n",
+			       sdata->dev->name, addr);
 		return NULL;
 	}
 
@@ -432,14 +418,15 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	mod_timer(&ifibss->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+	mod_timer(&ifibss->timer,
+		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
 	ieee80211_sta_expire(sdata, IEEE80211_IBSS_INACTIVITY_LIMIT);
+
 	if (ieee80211_sta_active_ibss(sdata))
 		return;
 
-	if ((ifibss->flags & IEEE80211_IBSS_BSSID_SET) &&
-	    (!(ifibss->flags & IEEE80211_IBSS_AUTO_CHANNEL_SEL)))
+	if (ifibss->fixed_channel)
 		return;
 
 	printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
@@ -455,7 +442,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 	ieee80211_request_scan(sdata, &sdata->local->int_scan_req);
 }
 
-static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
@@ -466,7 +453,7 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	u16 capability;
 	int i;
 
-	if (ifibss->flags & IEEE80211_IBSS_BSSID_SET) {
+	if (ifibss->fixed_bssid) {
 		memcpy(bssid, ifibss->bssid, ETH_ALEN);
 	} else {
 		/* Generate random, not broadcast, locally administered BSSID. Mix in
@@ -482,7 +469,7 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n",
 	       sdata->dev->name, bssid);
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	sband = local->hw.wiphy->bands[ifibss->channel->band];
 
 	if (local->hw.conf.beacon_int == 0)
 		local->hw.conf.beacon_int = 100;
@@ -500,24 +487,20 @@ static int ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 		*pos++ = (u8) (rate / 5);
 	}
 
-	return __ieee80211_sta_join_ibss(sdata,
-					 bssid, local->hw.conf.beacon_int,
-					 local->hw.conf.channel->center_freq,
-					 sband->n_bitrates, supp_rates,
-					 capability, 0);
+	__ieee80211_sta_join_ibss(sdata, bssid, local->hw.conf.beacon_int,
+				  ifibss->channel, sband->n_bitrates,
+				  supp_rates, capability, 0);
 }
 
-static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
+static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_bss *bss;
+	struct ieee80211_channel *chan = NULL;
 	const u8 *bssid = NULL;
 	int active_ibss;
 
-	if (ifibss->ssid_len == 0)
-		return -EINVAL;
-
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 #ifdef CONFIG_MAC80211_IBSS_DEBUG
 	printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
@@ -525,11 +508,15 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 
 	if (active_ibss)
-		return 0;
+		return;
 
-	if (ifibss->flags & IEEE80211_IBSS_BSSID_SET)
+	if (ifibss->fixed_bssid)
+		bssid = ifibss->bssid;
+	if (ifibss->fixed_channel)
+		chan = ifibss->channel;
+	if (!is_zero_ether_addr(ifibss->bssid))
 		bssid = ifibss->bssid;
-	bss = (void *)cfg80211_get_bss(local->hw.wiphy, NULL, bssid,
+	bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, bssid,
 				       ifibss->ssid, ifibss->ssid_len,
 				       WLAN_CAPABILITY_IBSS,
 				       WLAN_CAPABILITY_IBSS);
@@ -540,18 +527,14 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		       "%pM\n", bss->cbss.bssid, ifibss->bssid);
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 
-	if (bss &&
-	    (!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET) ||
-	     memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN))) {
-		int ret;
-
+	if (bss && memcmp(ifibss->bssid, bss->cbss.bssid, ETH_ALEN)) {
 		printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM"
 		       " based on configured SSID\n",
 		       sdata->dev->name, bss->cbss.bssid);
 
-		ret = ieee80211_sta_join_ibss(sdata, bss);
+		ieee80211_sta_join_ibss(sdata, bss);
 		ieee80211_rx_bss_put(local, bss);
-		return ret;
+		return;
 	} else if (bss)
 		ieee80211_rx_bss_put(local, bss);
 
@@ -562,29 +545,31 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	/* Selected IBSS not found in current scan results - try to scan */
 	if (ifibss->state == IEEE80211_IBSS_MLME_JOINED &&
 	    !ieee80211_sta_active_ibss(sdata)) {
-		mod_timer(&ifibss->timer, jiffies +
-					  IEEE80211_IBSS_MERGE_INTERVAL);
-	} else if (time_after(jiffies, local->last_scan_completed +
+		mod_timer(&ifibss->timer,
+			  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
+	} else if (time_after(jiffies, ifibss->last_scan_completed +
 					IEEE80211_SCAN_INTERVAL)) {
 		printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
 		       "join\n", sdata->dev->name);
 
 		/* XXX maybe racy? */
 		if (local->scan_req)
-			return -EBUSY;
+			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;
-		return ieee80211_request_scan(sdata, &local->int_scan_req);
+		local->int_scan_req.ssids[0].ssid_len =
+			ifibss->ssid_len;
+		ieee80211_request_scan(sdata, &local->int_scan_req);
 	} else if (ifibss->state != IEEE80211_IBSS_MLME_JOINED) {
 		int interval = IEEE80211_SCAN_INTERVAL;
 
 		if (time_after(jiffies, ifibss->ibss_join_req +
 			       IEEE80211_IBSS_JOIN_TIMEOUT)) {
-			if (!(local->oper_channel->flags &
-						IEEE80211_CHAN_NO_IBSS))
-				return ieee80211_sta_create_ibss(sdata);
+			if (!(local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS)) {
+				ieee80211_sta_create_ibss(sdata);
+				return;
+			}
 			printk(KERN_DEBUG "%s: IBSS not allowed on"
 			       " %d MHz\n", sdata->dev->name,
 			       local->hw.conf.channel->center_freq);
@@ -595,11 +580,9 @@ static int ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 		}
 
 		ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
-		mod_timer(&ifibss->timer, jiffies + interval);
-		return 0;
+		mod_timer(&ifibss->timer,
+			  round_jiffies(jiffies + interval));
 	}
-
-	return 0;
 }
 
 static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
@@ -614,7 +597,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	u8 *pos, *end;
 
 	if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
-	    len < 24 + 2 || !ifibss->probe_resp)
+	    len < 24 + 2 || !ifibss->presp)
 		return;
 
 	if (local->ops->tx_last_beacon)
@@ -649,13 +632,13 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	}
 	if (pos[1] != 0 &&
 	    (pos[1] != ifibss->ssid_len ||
-	     memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len) != 0)) {
+	     !memcmp(pos + 2, ifibss->ssid, ifibss->ssid_len))) {
 		/* Ignore ProbeReq for foreign SSID */
 		return;
 	}
 
 	/* Reply with ProbeResp */
-	skb = skb_copy(ifibss->probe_resp, GFP_KERNEL);
+	skb = skb_copy(ifibss->presp, GFP_KERNEL);
 	if (!skb)
 		return;
 
@@ -794,89 +777,21 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
 		    (unsigned long) sdata);
 	skb_queue_head_init(&ifibss->skb_queue);
-
-	ifibss->flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
-			IEEE80211_IBSS_AUTO_CHANNEL_SEL;
-}
-
-int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	ifibss->flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
-
-	if (ifibss->ssid_len)
-		ifibss->flags |= IEEE80211_IBSS_SSID_SET;
-	else
-		ifibss->flags &= ~IEEE80211_IBSS_SSID_SET;
-
-	ifibss->ibss_join_req = jiffies;
-	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
-	set_bit(IEEE80211_IBSS_REQ_RUN, &ifibss->request);
-
-	return 0;
-}
-
-int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	if (len > IEEE80211_MAX_SSID_LEN)
-		return -EINVAL;
-
-	if (ifibss->ssid_len != len || memcmp(ifibss->ssid, ssid, len) != 0) {
-		memset(ifibss->ssid, 0, sizeof(ifibss->ssid));
-		memcpy(ifibss->ssid, ssid, len);
-		ifibss->ssid_len = len;
-	}
-
-	return ieee80211_ibss_commit(sdata);
-}
-
-int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	memcpy(ssid, ifibss->ssid, ifibss->ssid_len);
-	*len = ifibss->ssid_len;
-
-	return 0;
-}
-
-int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid)
-{
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-
-	if (is_valid_ether_addr(bssid)) {
-		memcpy(ifibss->bssid, bssid, ETH_ALEN);
-		ifibss->flags |= IEEE80211_IBSS_BSSID_SET;
-	} else {
-		memset(ifibss->bssid, 0, ETH_ALEN);
-		ifibss->flags &= ~IEEE80211_IBSS_BSSID_SET;
-	}
-
-	if (netif_running(sdata->dev)) {
-		if (ieee80211_if_config(sdata, IEEE80211_IFCC_BSSID)) {
-			printk(KERN_DEBUG "%s: Failed to config new BSSID to "
-			       "the low-level driver\n", sdata->dev->name);
-		}
-	}
-
-	return ieee80211_ibss_commit(sdata);
 }
 
 /* scan finished notification */
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local)
 {
-	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-	struct ieee80211_if_ibss *ifibss;
+	struct ieee80211_sub_if_data *sdata;
 
-	if (sdata && sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		ifibss = &sdata->u.ibss;
-		if ((!(ifibss->flags & IEEE80211_IBSS_PREV_BSSID_SET)) ||
-		    !ieee80211_sta_active_ibss(sdata))
-			ieee80211_sta_find_ibss(sdata);
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
+			continue;
+		sdata->u.ibss.last_scan_completed = jiffies;
+		ieee80211_sta_find_ibss(sdata);
 	}
+	mutex_unlock(&local->iflist_mtx);
 }
 
 ieee80211_rx_result
@@ -906,3 +821,71 @@ ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 
 	return RX_DROP_MONITOR;
 }
+
+int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
+			struct cfg80211_ibss_params *params)
+{
+	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->u.ibss.channel = params->channel;
+	sdata->u.ibss.fixed_channel = params->channel_fixed;
+
+	if (params->ie) {
+		sdata->u.ibss.ie = kmemdup(params->ie, params->ie_len,
+					   GFP_KERNEL);
+		if (sdata->u.ibss.ie)
+			sdata->u.ibss.ie_len = params->ie_len;
+	}
+
+	skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
+			    36 /* bitrates */ +
+			    34 /* SSID */ +
+			    3  /* DS params */ +
+			    4  /* IBSS params */ +
+			    params->ie_len);
+	if (!skb)
+		return -ENOMEM;
+
+	sdata->u.ibss.skb = skb;
+	sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
+	sdata->u.ibss.ibss_join_req = jiffies;
+
+	set_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+	queue_work(sdata->local->hw.workqueue, &sdata->u.ibss.work);
+
+	return 0;
+}
+
+int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
+{
+	struct sk_buff *skb;
+
+	del_timer_sync(&sdata->u.ibss.timer);
+	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+	cancel_work_sync(&sdata->u.ibss.work);
+	clear_bit(IEEE80211_IBSS_REQ_RUN, &sdata->u.ibss.request);
+
+	sta_info_flush(sdata->local, sdata);
+
+	/* remove beacon */
+	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);
+	synchronize_rcu();
+	kfree_skb(skb);
+
+	skb_queue_purge(&sdata->u.ibss.skb_queue);
+	memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
+
+	return 0;
+}
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index e6ed78cb16b..1579bc92c88 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -24,7 +24,6 @@
 #include <linux/spinlock.h>
 #include <linux/etherdevice.h>
 #include <net/cfg80211.h>
-#include <net/wireless.h>
 #include <net/iw_handler.h>
 #include <net/mac80211.h>
 #include "key.h"
@@ -295,6 +294,8 @@ struct ieee80211_if_managed {
 	int auth_tries; /* retries for auth req */
 	int assoc_tries; /* retries for assoc req */
 
+	bool powersave; /* powersave requested for this iface */
+
 	unsigned long request;
 
 	unsigned long last_probe;
@@ -306,6 +307,8 @@ struct ieee80211_if_managed {
 	int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 	int auth_transaction;
 
+	u32 beacon_crc;
+
 	enum {
 		IEEE80211_MFP_DISABLED,
 		IEEE80211_MFP_OPTIONAL,
@@ -319,14 +322,6 @@ struct ieee80211_if_managed {
 	size_t sme_auth_ie_len;
 };
 
-enum ieee80211_ibss_flags {
-	IEEE80211_IBSS_AUTO_CHANNEL_SEL		= BIT(0),
-	IEEE80211_IBSS_AUTO_BSSID_SEL		= BIT(1),
-	IEEE80211_IBSS_BSSID_SET		= BIT(2),
-	IEEE80211_IBSS_PREV_BSSID_SET		= BIT(3),
-	IEEE80211_IBSS_SSID_SET			= BIT(4),
-};
-
 enum ieee80211_ibss_request {
 	IEEE80211_IBSS_REQ_RUN	= 0,
 };
@@ -337,17 +332,20 @@ struct ieee80211_if_ibss {
 
 	struct sk_buff_head skb_queue;
 
-	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	u8 ssid_len;
-
-	u32 flags;
+	unsigned long request;
+	unsigned long last_scan_completed;
+	bool fixed_bssid;
+	bool fixed_channel;
 
 	u8 bssid[ETH_ALEN];
-
-	unsigned long request;
+	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	u8 ssid_len, ie_len;
+	u8 *ie;
+	struct ieee80211_channel *channel;
 
 	unsigned long ibss_join_req;
-	struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
+	/* probe response/beacon for IBSS */
+	struct sk_buff *presp, *skb;
 
 	enum {
 		IEEE80211_IBSS_MLME_SEARCH,
@@ -626,8 +624,6 @@ struct ieee80211_local {
 	spinlock_t sta_lock;
 	unsigned long num_sta;
 	struct list_head sta_list;
-	struct list_head sta_flush_list;
-	struct work_struct sta_flush_work;
 	struct sta_info *sta_hash[STA_HASH_SIZE];
 	struct timer_list sta_cleanup;
 
@@ -647,9 +643,6 @@ struct ieee80211_local {
 
 	struct rate_control_ref *rate_ctrl;
 
-	int rts_threshold;
-	int fragmentation_threshold;
-
 	struct crypto_blkcipher *wep_tx_tfm;
 	struct crypto_blkcipher *wep_rx_tfm;
 	u32 wep_iv;
@@ -671,10 +664,12 @@ struct ieee80211_local {
 	struct cfg80211_scan_request int_scan_req;
 	struct cfg80211_scan_request *scan_req;
 	struct ieee80211_channel *scan_channel;
+	const u8 *orig_ies;
+	int orig_ies_len;
 	int scan_channel_idx;
+	int scan_ies_len;
 
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
-	unsigned long last_scan_completed;
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data *scan_sdata;
 	enum nl80211_channel_type oper_channel_type;
@@ -736,15 +731,22 @@ struct ieee80211_local {
 	int wifi_wme_noack_test;
 	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
-	bool powersave;
 	bool pspolling;
+	/*
+	 * PS can only be enabled when we have exactly one managed
+	 * interface (and monitors) in PS, this then points there.
+	 */
+	struct ieee80211_sub_if_data *ps_sdata;
 	struct work_struct dynamic_ps_enable_work;
 	struct work_struct dynamic_ps_disable_work;
 	struct timer_list dynamic_ps_timer;
+	struct notifier_block network_latency_notifier;
 
 	int user_power_level; /* in dBm */
 	int power_constr_level; /* in dBm */
 
+	struct work_struct restart_work;
+
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
 		struct dentry *rcdir;
@@ -830,7 +832,7 @@ struct ieee802_11_elems {
 	u8 *fh_params;
 	u8 *ds_params;
 	u8 *cf_params;
-	u8 *tim;
+	struct ieee80211_tim_ie *tim;
 	u8 *ibss_params;
 	u8 *challenge;
 	u8 *wpa;
@@ -927,12 +929,11 @@ int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason
 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
 void ieee80211_send_pspoll(struct ieee80211_local *local,
 			   struct ieee80211_sub_if_data *sdata);
+void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
+int ieee80211_max_network_latency(struct notifier_block *nb,
+				  unsigned long data, void *dummy);
 
 /* IBSS code */
-int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata);
-int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
-int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
-int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
 ieee80211_rx_result
@@ -940,6 +941,9 @@ ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 		       struct ieee80211_rx_status *rx_status);
 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 					u8 *bssid, u8 *addr, u32 supp_rates);
+int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
+			struct cfg80211_ibss_params *params);
+int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
 
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
@@ -995,9 +999,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
 				       struct ieee80211_ht_cap *ht_cap_ie,
 				       struct ieee80211_sta_ht_cap *ht_cap);
-u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
-			struct ieee80211_ht_info *hti,
-			u16 ap_ht_cap_flags);
 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 			  const u8 *da, u16 tid,
@@ -1036,15 +1037,22 @@ void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
 				 u16 capab_info, u8 *pwr_constr_elem,
 				 u8 pwr_constr_elem_len);
 
-/* Suspend/resume */
+/* Suspend/resume and hw reconfiguration */
+int ieee80211_reconfig(struct ieee80211_local *local);
+
 #ifdef CONFIG_PM
 int __ieee80211_suspend(struct ieee80211_hw *hw);
-int __ieee80211_resume(struct ieee80211_hw *hw);
+
+static inline int __ieee80211_resume(struct ieee80211_hw *hw)
+{
+	return ieee80211_reconfig(hw_to_local(hw));
+}
 #else
 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
 {
 	return 0;
 }
+
 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
 {
 	return 0;
@@ -1060,12 +1068,15 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
 			     int rate, int erp, int short_preamble);
 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
-				     struct ieee80211_hdr *hdr);
+				     struct ieee80211_hdr *hdr, const u8 *tsc);
 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 		      int encrypt);
 void ieee802_11_parse_elems(u8 *start, size_t len,
 			    struct ieee802_11_elems *elems);
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+			       struct ieee802_11_elems *elems,
+			       u64 filter, u32 crc);
 int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band);
@@ -1093,9 +1104,11 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u16 transaction, u16 auth_alg,
 			 u8 *extra, size_t extra_len,
 			 const u8 *bssid, int encrypt);
+int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
+			     const u8 *ie, size_t ie_len);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len,
-			      u8 *ie, size_t ie_len);
+			      const u8 *ssid, size_t ssid_len,
+			      const u8 *ie, size_t ie_len);
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 91e8e1bacaa..52425975bbb 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -235,11 +235,7 @@ static int ieee80211_open(struct net_device *dev)
 		netif_addr_unlock_bh(local->mdev);
 		break;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
-		if (sdata->vif.type == NL80211_IFTYPE_STATION)
-			sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
-		else
-			sdata->u.ibss.flags &= ~IEEE80211_IBSS_PREV_BSSID_SET;
+		sdata->u.mgd.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
 		/* fall through */
 	default:
 		conf.vif = &sdata->vif;
@@ -317,6 +313,8 @@ static int ieee80211_open(struct net_device *dev)
 		ieee80211_set_wmm_default(sdata);
 	}
 
+	ieee80211_recalc_ps(local, -1);
+
 	/*
 	 * ieee80211_sta_work is disabled while network interface
 	 * is down. Therefore, some configuration changes may not
@@ -325,8 +323,6 @@ static int ieee80211_open(struct net_device *dev)
 	 */
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		queue_work(local->hw.workqueue, &sdata->u.mgd.work);
-	else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		queue_work(local->hw.workqueue, &sdata->u.ibss.work);
 
 	netif_tx_start_all_queues(dev);
 
@@ -497,7 +493,6 @@ static int ieee80211_stop(struct net_device *dev)
 		/* fall through */
 	case NL80211_IFTYPE_ADHOC:
 		if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-			memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
 			del_timer_sync(&sdata->u.ibss.timer);
 			cancel_work_sync(&sdata->u.ibss.work);
 			synchronize_rcu();
@@ -572,6 +567,8 @@ 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);
@@ -649,7 +646,8 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 			mesh_rmc_free(sdata);
 		break;
 	case NL80211_IFTYPE_ADHOC:
-		kfree_skb(sdata->u.ibss.probe_resp);
+		if (WARN_ON(sdata->u.ibss.presp))
+			kfree_skb(sdata->u.ibss.presp);
 		break;
 	case NL80211_IFTYPE_STATION:
 		kfree(sdata->u.mgd.extra_ie);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fbcbed6cad0..5320e08434a 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -21,6 +21,7 @@
 #include <linux/wireless.h>
 #include <linux/rtnetlink.h>
 #include <linux/bitmap.h>
+#include <linux/pm_qos_params.h>
 #include <net/net_namespace.h>
 #include <net/cfg80211.h>
 
@@ -208,7 +209,7 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 					!!rcu_dereference(sdata->u.ap.beacon);
 				break;
 			case NL80211_IFTYPE_ADHOC:
-				conf.enable_beacon = !!sdata->u.ibss.probe_resp;
+				conf.enable_beacon = !!sdata->u.ibss.presp;
 				break;
 			case NL80211_IFTYPE_MESH_POINT:
 				conf.enable_beacon = true;
@@ -696,6 +697,28 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ieee80211_tx_status);
 
+static void ieee80211_restart_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, restart_work);
+
+	rtnl_lock();
+	ieee80211_reconfig(local);
+	rtnl_unlock();
+}
+
+void ieee80211_restart_hw(struct ieee80211_hw *hw)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	/* use this reason, __ieee80211_resume will unblock it */
+	ieee80211_stop_queues_by_reason(hw,
+		IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+	schedule_work(&local->restart_work);
+}
+EXPORT_SYMBOL(ieee80211_restart_hw);
+
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
@@ -728,12 +751,13 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 		return NULL;
 
 	wiphy->privid = mac80211_wiphy_privid;
-	wiphy->max_scan_ssids = 4;
+
 	/* Yes, putting cfg80211_bss into ieee80211_bss is a hack */
 	wiphy->bss_priv_size = sizeof(struct ieee80211_bss) -
 			       sizeof(struct cfg80211_bss);
 
 	local = wiphy_priv(wiphy);
+
 	local->hw.wiphy = wiphy;
 
 	local->hw.priv = (char *)local +
@@ -752,10 +776,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	/* set up some defaults */
 	local->hw.queues = 1;
 	local->hw.max_rates = 1;
-	local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
-	local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	local->hw.conf.long_frame_max_tx_count = 4;
-	local->hw.conf.short_frame_max_tx_count = 7;
+	local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+	local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
 	local->hw.conf.radio_enabled = true;
 
 	INIT_LIST_HEAD(&local->interfaces);
@@ -767,6 +789,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
 
+	INIT_WORK(&local->restart_work, ieee80211_restart_work);
+
 	INIT_WORK(&local->dynamic_ps_enable_work,
 		  ieee80211_dynamic_ps_enable_work);
 	INIT_WORK(&local->dynamic_ps_disable_work,
@@ -820,7 +844,17 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	enum ieee80211_band band;
 	struct net_device *mdev;
 	struct ieee80211_master_priv *mpriv;
-	int channels, i, j;
+	int channels, i, j, max_bitrates;
+	bool supp_ht;
+	static const u32 cipher_suites[] = {
+		WLAN_CIPHER_SUITE_WEP40,
+		WLAN_CIPHER_SUITE_WEP104,
+		WLAN_CIPHER_SUITE_TKIP,
+		WLAN_CIPHER_SUITE_CCMP,
+
+		/* keep last -- depends on hw flags! */
+		WLAN_CIPHER_SUITE_AES_CMAC
+	};
 
 	/*
 	 * generic code guarantees at least one band,
@@ -828,18 +862,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	 * that hw.conf.channel is assigned
 	 */
 	channels = 0;
+	max_bitrates = 0;
+	supp_ht = false;
 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
 		struct ieee80211_supported_band *sband;
 
 		sband = local->hw.wiphy->bands[band];
-		if (sband && !local->oper_channel) {
+		if (!sband)
+			continue;
+		if (!local->oper_channel) {
 			/* init channel we're on */
 			local->hw.conf.channel =
 			local->oper_channel =
 			local->scan_channel = &sband->channels[0];
 		}
-		if (sband)
-			channels += sband->n_channels;
+		channels += sband->n_channels;
+
+		if (max_bitrates < sband->n_bitrates)
+			max_bitrates = sband->n_bitrates;
+		supp_ht = supp_ht || sband->ht_cap.ht_supported;
 	}
 
 	local->int_scan_req.n_channels = channels;
@@ -859,6 +900,37 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
 		local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
 
+	/*
+	 * Calculate scan IE length -- we need this to alloc
+	 * memory and to subtract from the driver limit. It
+	 * includes the (extended) supported rates and HT
+	 * information -- SSID is the driver's responsibility.
+	 */
+	local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */
+	if (supp_ht)
+		local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap);
+
+	if (!local->ops->hw_scan) {
+		/* For hw_scan, driver needs to set these up. */
+		local->hw.wiphy->max_scan_ssids = 4;
+		local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+	}
+
+	/*
+	 * If the driver supports any scan IEs, then assume the
+	 * limit includes the IEs mac80211 will add, otherwise
+	 * leave it at zero and let the driver sort it out; we
+	 * still pass our IEs to the driver but userspace will
+	 * not be allowed to in that case.
+	 */
+	if (local->hw.wiphy->max_scan_ie_len)
+		local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len;
+
+	local->hw.wiphy->cipher_suites = cipher_suites;
+	local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+	if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE))
+		local->hw.wiphy->n_cipher_suites--;
+
 	result = wiphy_register(local->hw.wiphy);
 	if (result < 0)
 		goto fail_wiphy_register;
@@ -965,25 +1037,38 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		}
 	}
 
+	local->network_latency_notifier.notifier_call =
+		ieee80211_max_network_latency;
+	result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY,
+				     &local->network_latency_notifier);
+
+	if (result) {
+		rtnl_lock();
+		goto fail_pm_qos;
+	}
+
 	return 0;
 
-fail_wep:
+ fail_pm_qos:
+	ieee80211_led_exit(local);
+	ieee80211_remove_interfaces(local);
+ fail_wep:
 	rate_control_deinitialize(local);
-fail_rate:
+ fail_rate:
 	unregister_netdevice(local->mdev);
 	local->mdev = NULL;
-fail_dev:
+ fail_dev:
 	rtnl_unlock();
 	sta_info_stop(local);
-fail_sta_info:
+ fail_sta_info:
 	debugfs_hw_del(local);
 	destroy_workqueue(local->hw.workqueue);
-fail_workqueue:
+ fail_workqueue:
 	if (local->mdev)
 		free_netdev(local->mdev);
-fail_mdev_alloc:
+ fail_mdev_alloc:
 	wiphy_unregister(local->hw.wiphy);
-fail_wiphy_register:
+ fail_wiphy_register:
 	kfree(local->int_scan_req.channels);
 	return result;
 }
@@ -996,6 +1081,9 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 	tasklet_kill(&local->tx_pending_tasklet);
 	tasklet_kill(&local->tasklet);
 
+	pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY,
+			       &local->network_latency_notifier);
+
 	rtnl_lock();
 
 	/*
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 132938b073d..3610c11286b 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -17,6 +17,8 @@
 #include <linux/if_arp.h>
 #include <linux/etherdevice.h>
 #include <linux/rtnetlink.h>
+#include <linux/pm_qos_params.h>
+#include <linux/crc32.h>
 #include <net/mac80211.h>
 #include <asm/unaligned.h>
 
@@ -80,6 +82,89 @@ static int ieee80211_compatible_rates(struct ieee80211_bss *bss,
 	return count;
 }
 
+/*
+ * ieee80211_enable_ht should be called only after the operating band
+ * has been determined as ht configuration depends on the hw's
+ * HT abilities for a specific band.
+ */
+static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
+			       struct ieee80211_ht_info *hti,
+			       u16 ap_ht_cap_flags)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	struct ieee80211_bss_ht_conf ht;
+	struct sta_info *sta;
+	u32 changed = 0;
+	bool enable_ht = true, ht_changed;
+	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	memset(&ht, 0, sizeof(ht));
+
+	/* HT is not supported */
+	if (!sband->ht_cap.ht_supported)
+		enable_ht = false;
+
+	/* check that channel matches the right operating channel */
+	if (local->hw.conf.channel->center_freq !=
+	    ieee80211_channel_to_frequency(hti->control_chan))
+		enable_ht = false;
+
+	if (enable_ht) {
+		channel_type = NL80211_CHAN_HT20;
+
+		if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+		    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+		    (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
+			switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+			case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+				channel_type = NL80211_CHAN_HT40PLUS;
+				break;
+			case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+				channel_type = NL80211_CHAN_HT40MINUS;
+				break;
+			}
+		}
+	}
+
+	ht_changed = conf_is_ht(&local->hw.conf) != enable_ht ||
+		     channel_type != local->hw.conf.channel_type;
+
+	local->oper_channel_type = channel_type;
+
+	if (ht_changed) {
+                /* channel_type change automatically detected */
+		ieee80211_hw_config(local, 0);
+
+		rcu_read_lock();
+
+		sta = sta_info_get(local, ifmgd->bssid);
+		if (sta)
+			rate_control_rate_update(local, sband, sta,
+						 IEEE80211_RC_HT_CHANGED);
+
+		rcu_read_unlock();
+
+        }
+
+	/* disable HT */
+	if (!enable_ht)
+		return 0;
+
+	ht.operation_mode = le16_to_cpu(hti->operation_mode);
+
+	/* if bss configuration changed store the new one */
+	if (memcmp(&sdata->vif.bss_conf.ht, &ht, sizeof(ht))) {
+		changed |= BSS_CHANGED_HT;
+		sdata->vif.bss_conf.ht = ht;
+	}
+
+	return changed;
+}
+
 /* frame sending functions */
 
 static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
@@ -325,6 +410,10 @@ static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
 	/* u.deauth.reason_code == u.disassoc.reason_code */
 	mgmt->u.deauth.reason_code = cpu_to_le16(reason);
 
+	if (stype == IEEE80211_STYPE_DEAUTH)
+		cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, skb->len);
+	else
+		cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, skb->len);
 	ieee80211_tx_skb(sdata, skb, ifmgd->flags & IEEE80211_STA_MFP_ENABLED);
 }
 
@@ -359,6 +448,166 @@ void ieee80211_send_pspoll(struct ieee80211_local *local,
 	ieee80211_tx_skb(sdata, skb, 0);
 }
 
+void ieee80211_send_nullfunc(struct ieee80211_local *local,
+			     struct ieee80211_sub_if_data *sdata,
+			     int powersave)
+{
+	struct sk_buff *skb;
+	struct ieee80211_hdr *nullfunc;
+	__le16 fc;
+
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
+		return;
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+	if (!skb) {
+		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+		       "frame\n", sdata->dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+
+	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+	memset(nullfunc, 0, 24);
+	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+			 IEEE80211_FCTL_TODS);
+	if (powersave)
+		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
+	nullfunc->frame_control = fc;
+	memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
+	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+	memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
+
+	ieee80211_tx_skb(sdata, skb, 0);
+}
+
+/* powersave */
+static void ieee80211_enable_ps(struct ieee80211_local *local,
+				struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_conf *conf = &local->hw.conf;
+
+	if (conf->dynamic_ps_timeout > 0 &&
+	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
+		mod_timer(&local->dynamic_ps_timer, jiffies +
+			  msecs_to_jiffies(conf->dynamic_ps_timeout));
+	} else {
+		if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+			ieee80211_send_nullfunc(local, sdata, 1);
+		conf->flags |= IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+}
+
+static void ieee80211_change_ps(struct ieee80211_local *local)
+{
+	struct ieee80211_conf *conf = &local->hw.conf;
+
+	if (local->ps_sdata) {
+		if (!(local->ps_sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
+			return;
+
+		ieee80211_enable_ps(local, local->ps_sdata);
+	} else if (conf->flags & IEEE80211_CONF_PS) {
+		conf->flags &= ~IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+		del_timer_sync(&local->dynamic_ps_timer);
+		cancel_work_sync(&local->dynamic_ps_enable_work);
+	}
+}
+
+/* need to hold RTNL or interface lock */
+void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
+{
+	struct ieee80211_sub_if_data *sdata, *found = NULL;
+	int count = 0;
+
+	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) {
+		local->ps_sdata = NULL;
+		return;
+	}
+
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+		if (sdata->vif.type != NL80211_IFTYPE_STATION)
+			continue;
+		found = sdata;
+		count++;
+	}
+
+	if (count == 1 && found->u.mgd.powersave) {
+		s32 beaconint_us;
+
+		if (latency < 0)
+			latency = pm_qos_requirement(PM_QOS_NETWORK_LATENCY);
+
+		beaconint_us = ieee80211_tu_to_usec(
+					found->vif.bss_conf.beacon_int);
+
+		if (beaconint_us > latency) {
+			local->ps_sdata = NULL;
+		} else {
+			u8 dtimper = found->vif.bss_conf.dtim_period;
+			int maxslp = 1;
+
+			if (dtimper > 1)
+				maxslp = min_t(int, dtimper,
+						    latency / beaconint_us);
+
+			local->hw.conf.max_sleep_interval = maxslp;
+			local->ps_sdata = found;
+		}
+	} else {
+		local->ps_sdata = NULL;
+	}
+
+	ieee80211_change_ps(local);
+}
+
+void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local,
+			     dynamic_ps_disable_work);
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+
+	ieee80211_wake_queues_by_reason(&local->hw,
+					IEEE80211_QUEUE_STOP_REASON_PS);
+}
+
+void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local,
+			     dynamic_ps_enable_work);
+	struct ieee80211_sub_if_data *sdata = local->ps_sdata;
+
+	/* can only happen when PS was just disabled anyway */
+	if (!sdata)
+		return;
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS)
+		return;
+
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+		ieee80211_send_nullfunc(local, sdata, 1);
+
+	local->hw.conf.flags |= IEEE80211_CONF_PS;
+	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+}
+
+void ieee80211_dynamic_ps_timer(unsigned long data)
+{
+	struct ieee80211_local *local = (void *) data;
+
+	queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
+}
+
 /* MLME */
 static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 				     struct ieee80211_if_managed *ifmgd,
@@ -435,30 +684,6 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 	}
 }
 
-static bool ieee80211_check_tim(struct ieee802_11_elems *elems, u16 aid)
-{
-	u8 mask;
-	u8 index, indexn1, indexn2;
-	struct ieee80211_tim_ie *tim = (struct ieee80211_tim_ie *) elems->tim;
-
-	if (unlikely(!tim || elems->tim_len < 4))
-		return false;
-
-	aid &= 0x3fff;
-	index = aid / 8;
-	mask  = 1 << (aid & 7);
-
-	indexn1 = tim->bitmap_ctrl & 0xfe;
-	indexn2 = elems->tim_len + indexn1 - 4;
-
-	if (index < indexn1 || index > indexn2)
-		return false;
-
-	index -= indexn1;
-
-	return !!(tim->virtual_map[index] & mask);
-}
-
 static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 					   u16 capab, bool erp_valid, u8 erp)
 {
@@ -634,18 +859,11 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	bss_info_changed |= BSS_CHANGED_BASIC_RATES;
 	ieee80211_bss_info_change_notify(sdata, bss_info_changed);
 
-	if (local->powersave) {
-		if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) &&
-		    local->hw.conf.dynamic_ps_timeout > 0) {
-			mod_timer(&local->dynamic_ps_timer, jiffies +
-				  msecs_to_jiffies(
-					local->hw.conf.dynamic_ps_timeout));
-		} else {
-			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-				ieee80211_send_nullfunc(local, sdata, 1);
-			conf->flags |= IEEE80211_CONF_PS;
-			ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-		}
+	/* will be same as sdata */
+	if (local->ps_sdata) {
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
 	}
 
 	netif_tx_start_all_queues(sdata->dev);
@@ -714,7 +932,7 @@ 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_sta_send_apinfo(sdata);
+		cfg80211_send_auth_timeout(sdata->dev, ifmgd->bssid);
 		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
 				ifmgd->ssid, ifmgd->ssid_len);
@@ -897,7 +1115,7 @@ 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_sta_send_apinfo(sdata);
+		cfg80211_send_assoc_timeout(sdata->dev, ifmgd->bssid);
 		ieee80211_rx_bss_remove(sdata, ifmgd->bssid,
 				sdata->local->hw.conf.channel->center_freq,
 				ifmgd->ssid, ifmgd->ssid_len);
@@ -1187,7 +1405,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, true, false, 0);
 	ifmgd->flags &= ~IEEE80211_STA_AUTHENTICATED;
-	cfg80211_send_rx_deauth(sdata->dev, (u8 *) mgmt, len);
+	cfg80211_send_deauth(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1218,7 +1436,7 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ieee80211_set_disassoc(sdata, false, false, reason_code);
-	cfg80211_send_rx_disassoc(sdata->dev, (u8 *) mgmt, len);
+	cfg80211_send_disassoc(sdata->dev, (u8 *) mgmt, len);
 }
 
 
@@ -1287,6 +1505,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		 * association next time. This works around some broken APs
 		 * which do not correctly reject reassociation requests. */
 		ifmgd->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+		cfg80211_send_rx_assoc(sdata->dev, (u8 *) mgmt, len);
+		if (ifmgd->flags & IEEE80211_STA_EXT_SME) {
+			/* Wait for SME to decide what to do next */
+			ifmgd->state = IEEE80211_STA_MLME_DISABLED;
+		}
 		return;
 	}
 
@@ -1518,46 +1741,74 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 		ifmgd->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
 }
 
+/*
+ * This is the canonical list of information elements we care about,
+ * the filter code also gives us all changes to the Microsoft OUI
+ * (00:50:F2) vendor IE which is used for WMM which we need to track.
+ *
+ * We implement beacon filtering in software since that means we can
+ * avoid processing the frame here and in cfg80211, and userspace
+ * will not be able to tell whether the hardware supports it or not.
+ *
+ * XXX: This list needs to be dynamic -- userspace needs to be able to
+ *	add items it requires. It also needs to be able to tell us to
+ *	look out for other vendor IEs.
+ */
+static const u64 care_about_ies =
+	(1ULL << WLAN_EID_COUNTRY) |
+	(1ULL << WLAN_EID_ERP_INFO) |
+	(1ULL << WLAN_EID_CHANNEL_SWITCH) |
+	(1ULL << WLAN_EID_PWR_CONSTRAINT) |
+	(1ULL << WLAN_EID_HT_CAPABILITY) |
+	(1ULL << WLAN_EID_HT_INFORMATION);
+
 static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				     struct ieee80211_mgmt *mgmt,
 				     size_t len,
 				     struct ieee80211_rx_status *rx_status)
 {
-	struct ieee80211_if_managed *ifmgd;
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	size_t baselen;
 	struct ieee802_11_elems elems;
 	struct ieee80211_local *local = sdata->local;
 	u32 changed = 0;
-	bool erp_valid, directed_tim;
+	bool erp_valid, directed_tim = false;
 	u8 erp_value = 0;
+	u32 ncrc;
 
 	/* Process beacon from the current BSS */
 	baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
 	if (baselen > len)
 		return;
 
-	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
-
-	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
-
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+	if (rx_status->freq != local->hw.conf.channel->center_freq)
 		return;
 
-	ifmgd = &sdata->u.mgd;
-
 	if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED) ||
 	    memcmp(ifmgd->bssid, mgmt->bssid, ETH_ALEN) != 0)
 		return;
 
-	if (rx_status->freq != local->hw.conf.channel->center_freq)
+	ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
+	ncrc = ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
+					  len - baselen, &elems,
+					  care_about_ies, ncrc);
+
+	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
+		directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len,
+						   ifmgd->aid);
+
+	ncrc = crc32_be(ncrc, (void *)&directed_tim, sizeof(directed_tim));
+
+	if (ncrc == ifmgd->beacon_crc)
 		return;
+	ifmgd->beacon_crc = ncrc;
+
+	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, true);
 
 	ieee80211_sta_wmm_params(local, ifmgd, elems.wmm_param,
 				 elems.wmm_param_len);
 
 	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
-		directed_tim = ieee80211_check_tim(&elems, ifmgd->aid);
-
 		if (directed_tim) {
 			if (local->hw.conf.dynamic_ps_timeout > 0) {
 				local->hw.conf.flags &= ~IEEE80211_CONF_PS;
@@ -1930,6 +2181,7 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd;
+	u32 hw_flags;
 
 	ifmgd = &sdata->u.mgd;
 	INIT_WORK(&ifmgd->work, ieee80211_sta_work);
@@ -1949,6 +2201,13 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 		IEEE80211_STA_AUTO_CHANNEL_SEL;
 	if (sdata->local->hw.queues >= 4)
 		ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
+
+	hw_flags = sdata->local->hw.flags;
+
+	if (hw_flags & IEEE80211_HW_SUPPORTS_PS) {
+		ifmgd->powersave = CONFIG_MAC80211_DEFAULT_PS_VALUE;
+		sdata->local->hw.conf.dynamic_ps_timeout = 500;
+	}
 }
 
 /* configuration hooks */
@@ -2068,9 +2327,6 @@ int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason
 	printk(KERN_DEBUG "%s: deauthenticating by local choice (reason=%d)\n",
 	       sdata->dev->name, reason);
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return -EINVAL;
-
 	ieee80211_set_disassoc(sdata, true, true, reason);
 	return 0;
 }
@@ -2082,9 +2338,6 @@ int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason)
 	printk(KERN_DEBUG "%s: disassociating by local choice (reason=%d)\n",
 	       sdata->dev->name, reason);
 
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return -EINVAL;
-
 	if (!(ifmgd->flags & IEEE80211_STA_ASSOCIATED))
 		return -ENOLINK;
 
@@ -2104,75 +2357,17 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
 	rcu_read_unlock();
 }
 
-void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
+int ieee80211_max_network_latency(struct notifier_block *nb,
+				  unsigned long data, void *dummy)
 {
+	s32 latency_usec = (s32) data;
 	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local,
-			     dynamic_ps_disable_work);
+		container_of(nb, struct ieee80211_local,
+			     network_latency_notifier);
 
-	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
-		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-	}
-
-	ieee80211_wake_queues_by_reason(&local->hw,
-					IEEE80211_QUEUE_STOP_REASON_PS);
-}
-
-void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
-{
-	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local,
-			     dynamic_ps_enable_work);
-	/* XXX: using scan_sdata is completely broken! */
-	struct ieee80211_sub_if_data *sdata = local->scan_sdata;
-
-	if (local->hw.conf.flags & IEEE80211_CONF_PS)
-		return;
-
-	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK && sdata)
-		ieee80211_send_nullfunc(local, sdata, 1);
-
-	local->hw.conf.flags |= IEEE80211_CONF_PS;
-	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
-}
+	mutex_lock(&local->iflist_mtx);
+	ieee80211_recalc_ps(local, latency_usec);
+	mutex_unlock(&local->iflist_mtx);
 
-void ieee80211_dynamic_ps_timer(unsigned long data)
-{
-	struct ieee80211_local *local = (void *) data;
-
-	queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
-}
-
-void ieee80211_send_nullfunc(struct ieee80211_local *local,
-			     struct ieee80211_sub_if_data *sdata,
-			     int powersave)
-{
-	struct sk_buff *skb;
-	struct ieee80211_hdr *nullfunc;
-	__le16 fc;
-
-	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
-		return;
-
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
-	if (!skb) {
-		printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
-		       "frame\n", sdata->dev->name);
-		return;
-	}
-	skb_reserve(skb, local->hw.extra_tx_headroom);
-
-	nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
-	memset(nullfunc, 0, 24);
-	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
-			 IEEE80211_FCTL_TODS);
-	if (powersave)
-		fc |= cpu_to_le16(IEEE80211_FCTL_PM);
-	nullfunc->frame_control = fc;
-	memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
-	memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
-	memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
-
-	ieee80211_tx_skb(sdata, skb, 0);
+	return 0;
 }
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 81985d27cbd..b38986c9dee 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -72,119 +72,8 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
 	return 0;
 }
 
-int __ieee80211_resume(struct ieee80211_hw *hw)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_if_init_conf conf;
-	struct sta_info *sta;
-	unsigned long flags;
-	int res;
-
-	/* restart hardware */
-	if (local->open_count) {
-		res = local->ops->start(hw);
-
-		ieee80211_led_radio(local, hw->conf.radio_enabled);
-	}
-
-	/* add interfaces */
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
-		    sdata->vif.type != NL80211_IFTYPE_MONITOR &&
-		    netif_running(sdata->dev)) {
-			conf.vif = &sdata->vif;
-			conf.type = sdata->vif.type;
-			conf.mac_addr = sdata->dev->dev_addr;
-			res = local->ops->add_interface(hw, &conf);
-		}
-	}
-
-	/* add STAs back */
-	if (local->ops->sta_notify) {
-		spin_lock_irqsave(&local->sta_lock, flags);
-		list_for_each_entry(sta, &local->sta_list, list) {
-			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-				sdata = container_of(sdata->bss,
-					     struct ieee80211_sub_if_data,
-					     u.ap);
-
-			local->ops->sta_notify(hw, &sdata->vif,
-				STA_NOTIFY_ADD, &sta->sta);
-		}
-		spin_unlock_irqrestore(&local->sta_lock, flags);
-	}
-
-	/* Clear Suspend state so that ADDBA requests can be processed */
-
-	rcu_read_lock();
-
-	if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
-		list_for_each_entry_rcu(sta, &local->sta_list, list) {
-			clear_sta_flags(sta, WLAN_STA_SUSPEND);
-		}
-	}
-
-	rcu_read_unlock();
-
-	/* add back keys */
-	list_for_each_entry(sdata, &local->interfaces, list)
-		if (netif_running(sdata->dev))
-			ieee80211_enable_keys(sdata);
-
-	/* setup RTS threshold */
-	if (local->ops->set_rts_threshold)
-		local->ops->set_rts_threshold(hw, local->rts_threshold);
-
-	/* reconfigure hardware */
-	ieee80211_hw_config(local, ~0);
-
-	netif_addr_lock_bh(local->mdev);
-	ieee80211_configure_filter(local);
-	netif_addr_unlock_bh(local->mdev);
-
-	/* Finally also reconfigure all the BSS information */
-	list_for_each_entry(sdata, &local->interfaces, list) {
-		u32 changed = ~0;
-		if (!netif_running(sdata->dev))
-			continue;
-		switch (sdata->vif.type) {
-		case NL80211_IFTYPE_STATION:
-			/* disable beacon change bits */
-			changed &= ~IEEE80211_IFCC_BEACON;
-			/* 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);
-			break;
-		case NL80211_IFTYPE_WDS:
-			break;
-		case NL80211_IFTYPE_AP_VLAN:
-		case NL80211_IFTYPE_MONITOR:
-			/* ignore virtual */
-			break;
-		case NL80211_IFTYPE_UNSPECIFIED:
-		case __NL80211_IFTYPE_AFTER_LAST:
-			WARN_ON(1);
-			break;
-		}
-	}
-
-	ieee80211_wake_queues_by_reason(hw,
-			IEEE80211_QUEUE_STOP_REASON_SUSPEND);
-
-	return 0;
-}
+/*
+ * __ieee80211_resume() is a static inline which just calls
+ * ieee80211_reconfig(), which is also needed for hardware
+ * hang/firmware failure/etc. recovery.
+ */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9776f73c51a..a5afb79dab6 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1932,7 +1932,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
 	    !ieee80211_is_auth(hdr->frame_control))
 		goto ignore;
 
-	mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr);
+	mac80211_ev_michael_mic_failure(rx->sdata, keyidx, hdr, NULL);
  ignore:
 	dev_kfree_skb(rx->skb);
 	rx->skb = NULL;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 3bf9839f591..f25b07feabf 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -253,7 +253,7 @@ static void ieee80211_scan_ps_disable(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
 
-	if (!local->powersave)
+	if (!local->ps_sdata)
 		ieee80211_send_nullfunc(local, sdata, 0);
 	else {
 		/*
@@ -285,12 +285,16 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 	if (WARN_ON(!local->scan_req))
 		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 (local->scan_req != &local->int_scan_req)
 		cfg80211_scan_done(local->scan_req, aborted);
 	local->scan_req = NULL;
 
-	local->last_scan_completed = jiffies;
-
 	if (local->hw_scanning) {
 		local->hw_scanning = false;
 		/*
@@ -457,12 +461,28 @@ int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 	}
 
 	if (local->ops->hw_scan) {
-		int rc;
+		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;
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 5f7a2624ed7..48bf78e7fa7 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -15,7 +15,7 @@
  */
 
 #include <linux/ieee80211.h>
-#include <net/wireless.h>
+#include <net/cfg80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 #include "sta_info.h"
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index c5f14e6bbde..654a8e963cc 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -686,41 +686,10 @@ static void sta_info_debugfs_add_work(struct work_struct *work)
 }
 #endif
 
-static void __ieee80211_run_pending_flush(struct ieee80211_local *local)
-{
-	struct sta_info *sta;
-	unsigned long flags;
-
-	ASSERT_RTNL();
-
-	spin_lock_irqsave(&local->sta_lock, flags);
-	while (!list_empty(&local->sta_flush_list)) {
-		sta = list_first_entry(&local->sta_flush_list,
-				       struct sta_info, list);
-		list_del(&sta->list);
-		spin_unlock_irqrestore(&local->sta_lock, flags);
-		sta_info_destroy(sta);
-		spin_lock_irqsave(&local->sta_lock, flags);
-	}
-	spin_unlock_irqrestore(&local->sta_lock, flags);
-}
-
-static void ieee80211_sta_flush_work(struct work_struct *work)
-{
-	struct ieee80211_local *local =
-		container_of(work, struct ieee80211_local, sta_flush_work);
-
-	rtnl_lock();
-	__ieee80211_run_pending_flush(local);
-	rtnl_unlock();
-}
-
 void sta_info_init(struct ieee80211_local *local)
 {
 	spin_lock_init(&local->sta_lock);
 	INIT_LIST_HEAD(&local->sta_list);
-	INIT_LIST_HEAD(&local->sta_flush_list);
-	INIT_WORK(&local->sta_flush_work, ieee80211_sta_flush_work);
 
 	setup_timer(&local->sta_cleanup, sta_info_cleanup,
 		    (unsigned long)local);
@@ -741,7 +710,6 @@ int sta_info_start(struct ieee80211_local *local)
 void sta_info_stop(struct ieee80211_local *local)
 {
 	del_timer(&local->sta_cleanup);
-	cancel_work_sync(&local->sta_flush_work);
 #ifdef CONFIG_MAC80211_DEBUGFS
 	/*
 	 * Make sure the debugfs adding work isn't pending after this
@@ -752,10 +720,7 @@ void sta_info_stop(struct ieee80211_local *local)
 	cancel_work_sync(&local->sta_debugfs_add);
 #endif
 
-	rtnl_lock();
 	sta_info_flush(local, NULL);
-	__ieee80211_run_pending_flush(local);
-	rtnl_unlock();
 }
 
 /**
@@ -767,7 +732,7 @@ void sta_info_stop(struct ieee80211_local *local)
  * @sdata: matching rule for the net device (sta->dev) or %NULL to match all STAs
  */
 int sta_info_flush(struct ieee80211_local *local,
-		    struct ieee80211_sub_if_data *sdata)
+		   struct ieee80211_sub_if_data *sdata)
 {
 	struct sta_info *sta, *tmp;
 	LIST_HEAD(tmp_list);
@@ -775,7 +740,6 @@ int sta_info_flush(struct ieee80211_local *local,
 	unsigned long flags;
 
 	might_sleep();
-	ASSERT_RTNL();
 
 	spin_lock_irqsave(&local->sta_lock, flags);
 	list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
@@ -795,39 +759,6 @@ int sta_info_flush(struct ieee80211_local *local,
 	return ret;
 }
 
-/**
- * sta_info_flush_delayed - flush matching STA entries from the STA table
- *
- * This function unlinks all stations for a given interface and queues
- * them for freeing. Note that the workqueue function scheduled here has
- * to run before any new keys can be added to the system to avoid set_key()
- * callback ordering issues.
- *
- * @sdata: the interface
- */
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_local *local = sdata->local;
-	struct sta_info *sta, *tmp;
-	unsigned long flags;
-	bool work = false;
-
-	spin_lock_irqsave(&local->sta_lock, flags);
-	list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
-		if (sdata == sta->sdata) {
-			__sta_info_unlink(&sta);
-			if (sta) {
-				list_add_tail(&sta->list,
-					      &local->sta_flush_list);
-				work = true;
-			}
-		}
-	}
-	if (work)
-		schedule_work(&local->sta_flush_work);
-	spin_unlock_irqrestore(&local->sta_lock, flags);
-}
-
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time)
 {
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 5534d489f50..31a8990ce40 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -442,8 +442,7 @@ void sta_info_init(struct ieee80211_local *local);
 int sta_info_start(struct ieee80211_local *local);
 void sta_info_stop(struct ieee80211_local *local);
 int sta_info_flush(struct ieee80211_local *local,
-		    struct ieee80211_sub_if_data *sdata);
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata);
+		   struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time);
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3fb04a86444..1865622003c 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -409,8 +409,24 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 		       sta->sta.addr);
 	}
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-	clear_sta_flags(sta, WLAN_STA_PSPOLL);
+	if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) {
+		/*
+		 * The sleeping station with pending data is now snoozing.
+		 * It queried us for its buffered frames and will go back
+		 * to deep sleep once it got everything.
+		 *
+		 * inform the driver, in case the hardware does powersave
+		 * frame filtering and keeps a station  blacklist on its own
+		 * (e.g: p54), so that frames can be delivered unimpeded.
+		 *
+		 * Note: It should be save to disable the filter now.
+		 * As, it is really unlikely that we still have any pending
+		 * frame for this station in the hw's buffers/fifos left,
+		 * that is not rejected with a unsuccessful tx_status yet.
+		 */
 
+		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+	}
 	return TX_CONTINUE;
 }
 
@@ -429,7 +445,7 @@ ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 {
-	struct ieee80211_key *key;
+	struct ieee80211_key *key = NULL;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 
@@ -500,7 +516,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	sband = tx->local->hw.wiphy->bands[tx->channel->band];
 
 	len = min_t(int, tx->skb->len + FCS_LEN,
-			 tx->local->fragmentation_threshold);
+			 tx->local->hw.wiphy->frag_threshold);
 
 	/* set up the tx rate control struct we give the RC algo */
 	txrc.hw = local_to_hw(tx->local);
@@ -511,8 +527,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	txrc.max_rate_idx = tx->sdata->max_ratectrl_rateidx;
 
 	/* set up RTS protection if desired */
-	if (tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD &&
-	    len > tx->local->rts_threshold) {
+	if (len > tx->local->hw.wiphy->rts_threshold) {
 		txrc.rts = rts = true;
 	}
 
@@ -754,7 +769,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 	struct sk_buff *skb = tx->skb;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (void *)skb->data;
-	int frag_threshold = tx->local->fragmentation_threshold;
+	int frag_threshold = tx->local->hw.wiphy->frag_threshold;
 	int hdrlen;
 	int fragnum;
 
@@ -1072,7 +1087,7 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 
 	if (tx->flags & IEEE80211_TX_FRAGMENTED) {
 		if ((tx->flags & IEEE80211_TX_UNICAST) &&
-		    skb->len + FCS_LEN > local->fragmentation_threshold &&
+		    skb->len + FCS_LEN > local->hw.wiphy->frag_threshold &&
 		    !(info->flags & IEEE80211_TX_CTL_AMPDU))
 			tx->flags |= IEEE80211_TX_FRAGMENTED;
 		else
@@ -2086,18 +2101,18 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
 		struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 		struct ieee80211_hdr *hdr;
+		struct sk_buff *presp = rcu_dereference(ifibss->presp);
 
-		if (!ifibss->probe_resp)
+		if (!presp)
 			goto out;
 
-		skb = skb_copy(ifibss->probe_resp, GFP_ATOMIC);
+		skb = skb_copy(presp, GFP_ATOMIC);
 		if (!skb)
 			goto out;
 
 		hdr = (struct ieee80211_hdr *) skb->data;
 		hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 						 IEEE80211_STYPE_BEACON);
-
 	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		struct ieee80211_mgmt *mgmt;
 		u8 *pos;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index fdf432f1455..61876eb50b4 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -20,6 +20,7 @@
 #include <linux/if_arp.h>
 #include <linux/wireless.h>
 #include <linux/bitmap.h>
+#include <linux/crc32.h>
 #include <net/net_namespace.h>
 #include <net/cfg80211.h>
 #include <net/rtnetlink.h>
@@ -28,6 +29,7 @@
 #include "rate.h"
 #include "mesh.h"
 #include "wme.h"
+#include "led.h"
 
 /* privid for wiphys to determine whether they belong to us or not */
 void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
@@ -536,8 +538,16 @@ EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
 void ieee802_11_parse_elems(u8 *start, size_t len,
 			    struct ieee802_11_elems *elems)
 {
+	ieee802_11_parse_elems_crc(start, len, elems, 0, 0);
+}
+
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+			       struct ieee802_11_elems *elems,
+			       u64 filter, u32 crc)
+{
 	size_t left = len;
 	u8 *pos = start;
+	bool calc_crc = filter != 0;
 
 	memset(elems, 0, sizeof(*elems));
 	elems->ie_start = start;
@@ -551,7 +561,10 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 		left -= 2;
 
 		if (elen > left)
-			return;
+			break;
+
+		if (calc_crc && id < 64 && (filter & BIT(id)))
+			crc = crc32_be(crc, pos - 2, elen + 2);
 
 		switch (id) {
 		case WLAN_EID_SSID:
@@ -575,8 +588,10 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->cf_params_len = elen;
 			break;
 		case WLAN_EID_TIM:
-			elems->tim = pos;
-			elems->tim_len = elen;
+			if (elen >= sizeof(struct ieee80211_tim_ie)) {
+				elems->tim = (void *)pos;
+				elems->tim_len = elen;
+			}
 			break;
 		case WLAN_EID_IBSS_PARAMS:
 			elems->ibss_params = pos;
@@ -586,15 +601,20 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->challenge = pos;
 			elems->challenge_len = elen;
 			break;
-		case WLAN_EID_WPA:
+		case WLAN_EID_VENDOR_SPECIFIC:
 			if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
 			    pos[2] == 0xf2) {
 				/* Microsoft OUI (00:50:F2) */
+
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
+
 				if (pos[3] == 1) {
 					/* OUI Type 1 - WPA IE */
 					elems->wpa = pos;
 					elems->wpa_len = elen;
 				} else if (elen >= 5 && pos[3] == 2) {
+					/* OUI Type 2 - WMM IE */
 					if (pos[4] == 0) {
 						elems->wmm_info = pos;
 						elems->wmm_info_len = elen;
@@ -679,6 +699,8 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 		left -= elen;
 		pos += elen;
 	}
+
+	return crc;
 }
 
 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata)
@@ -831,16 +853,73 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	ieee80211_tx_skb(sdata, skb, encrypt);
 }
 
+int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
+			     const u8 *ie, size_t ie_len)
+{
+	struct ieee80211_supported_band *sband;
+	u8 *pos, *supp_rates_len, *esupp_rates_len = NULL;
+	int i;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	pos = buffer;
+
+	*pos++ = WLAN_EID_SUPP_RATES;
+	supp_rates_len = pos;
+	*pos++ = 0;
+
+	for (i = 0; i < sband->n_bitrates; i++) {
+		struct ieee80211_rate *rate = &sband->bitrates[i];
+
+		if (esupp_rates_len) {
+			*esupp_rates_len += 1;
+		} else if (*supp_rates_len == 8) {
+			*pos++ = WLAN_EID_EXT_SUPP_RATES;
+			esupp_rates_len = pos;
+			*pos++ = 1;
+		} else
+			*supp_rates_len += 1;
+
+		*pos++ = rate->bitrate / 5;
+	}
+
+	if (sband->ht_cap.ht_supported) {
+		__le16 tmp = cpu_to_le16(sband->ht_cap.cap);
+
+		*pos++ = WLAN_EID_HT_CAPABILITY;
+		*pos++ = sizeof(struct ieee80211_ht_cap);
+		memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+		memcpy(pos, &tmp, sizeof(u16));
+		pos += sizeof(u16);
+		/* TODO: needs a define here for << 2 */
+		*pos++ = sband->ht_cap.ampdu_factor |
+			 (sband->ht_cap.ampdu_density << 2);
+		memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
+		pos += sizeof(sband->ht_cap.mcs);
+		pos += 2 + 4 + 1; /* ext info, BF cap, antsel */
+	}
+
+	/*
+	 * If adding more here, adjust code in main.c
+	 * that calculates local->scan_ies_len.
+	 */
+
+	if (ie) {
+		memcpy(pos, ie, ie_len);
+		pos += ie_len;
+	}
+
+	return pos - buffer;
+}
+
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      u8 *ssid, size_t ssid_len,
-			      u8 *ie, size_t ie_len)
+			      const u8 *ssid, size_t ssid_len,
+			      const u8 *ie, size_t ie_len)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_supported_band *sband;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *supp_rates, *esupp_rates = NULL;
-	int i;
+	u8 *pos;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200 +
 			    ie_len);
@@ -867,31 +946,9 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	*pos++ = WLAN_EID_SSID;
 	*pos++ = ssid_len;
 	memcpy(pos, ssid, ssid_len);
+	pos += ssid_len;
 
-	supp_rates = skb_put(skb, 2);
-	supp_rates[0] = WLAN_EID_SUPP_RATES;
-	supp_rates[1] = 0;
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-	for (i = 0; i < sband->n_bitrates; i++) {
-		struct ieee80211_rate *rate = &sband->bitrates[i];
-		if (esupp_rates) {
-			pos = skb_put(skb, 1);
-			esupp_rates[1]++;
-		} else if (supp_rates[1] == 8) {
-			esupp_rates = skb_put(skb, 3);
-			esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
-			esupp_rates[1] = 1;
-			pos = &esupp_rates[2];
-		} else {
-			pos = skb_put(skb, 1);
-			supp_rates[1]++;
-		}
-		*pos = rate->bitrate / 5;
-	}
-
-	if (ie)
-		memcpy(skb_put(skb, ie_len), ie, ie_len);
+	skb_put(skb, ieee80211_build_preq_ies(local, pos, ie, ie_len));
 
 	ieee80211_tx_skb(sdata, skb, 0);
 }
@@ -931,3 +988,120 @@ u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
 	}
 	return supp_rates;
 }
+
+int ieee80211_reconfig(struct ieee80211_local *local)
+{
+	struct ieee80211_hw *hw = &local->hw;
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_if_init_conf conf;
+	struct sta_info *sta;
+	unsigned long flags;
+	int res;
+
+	/* restart hardware */
+	if (local->open_count) {
+		res = local->ops->start(hw);
+
+		ieee80211_led_radio(local, hw->conf.radio_enabled);
+	}
+
+	/* add interfaces */
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+		    sdata->vif.type != NL80211_IFTYPE_MONITOR &&
+		    netif_running(sdata->dev)) {
+			conf.vif = &sdata->vif;
+			conf.type = sdata->vif.type;
+			conf.mac_addr = sdata->dev->dev_addr;
+			res = local->ops->add_interface(hw, &conf);
+		}
+	}
+
+	/* add STAs back */
+	if (local->ops->sta_notify) {
+		spin_lock_irqsave(&local->sta_lock, flags);
+		list_for_each_entry(sta, &local->sta_list, list) {
+			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+				sdata = container_of(sdata->bss,
+					     struct ieee80211_sub_if_data,
+					     u.ap);
+
+			local->ops->sta_notify(hw, &sdata->vif,
+				STA_NOTIFY_ADD, &sta->sta);
+		}
+		spin_unlock_irqrestore(&local->sta_lock, flags);
+	}
+
+	/* Clear Suspend state so that ADDBA requests can be processed */
+
+	rcu_read_lock();
+
+	if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
+		list_for_each_entry_rcu(sta, &local->sta_list, list) {
+			clear_sta_flags(sta, WLAN_STA_SUSPEND);
+		}
+	}
+
+	rcu_read_unlock();
+
+	/* setup RTS threshold */
+	if (local->ops->set_rts_threshold)
+		local->ops->set_rts_threshold(hw, hw->wiphy->rts_threshold);
+
+	/* reconfigure hardware */
+	ieee80211_hw_config(local, ~0);
+
+	netif_addr_lock_bh(local->mdev);
+	ieee80211_configure_filter(local);
+	netif_addr_unlock_bh(local->mdev);
+
+	/* Finally also reconfigure all the BSS information */
+	list_for_each_entry(sdata, &local->interfaces, list) {
+		u32 changed = ~0;
+		if (!netif_running(sdata->dev))
+			continue;
+		switch (sdata->vif.type) {
+		case NL80211_IFTYPE_STATION:
+			/* disable beacon change bits */
+			changed &= ~IEEE80211_IFCC_BEACON;
+			/* 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);
+			break;
+		case NL80211_IFTYPE_WDS:
+			break;
+		case NL80211_IFTYPE_AP_VLAN:
+		case NL80211_IFTYPE_MONITOR:
+			/* ignore virtual */
+			break;
+		case NL80211_IFTYPE_UNSPECIFIED:
+		case __NL80211_IFTYPE_AFTER_LAST:
+			WARN_ON(1);
+			break;
+		}
+	}
+
+	/* add back keys */
+	list_for_each_entry(sdata, &local->interfaces, list)
+		if (netif_running(sdata->dev))
+			ieee80211_enable_keys(sdata);
+
+	ieee80211_wake_queues_by_reason(hw,
+			IEEE80211_QUEUE_STOP_REASON_SUSPEND);
+
+	return 0;
+}
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 959aa8379cc..1a649da42c4 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -149,17 +149,14 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
 	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_CHANNEL_SEL;
+		return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 
 	/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 	if (freq->e == 0) {
 		if (freq->m < 0) {
-			if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-				sdata->u.ibss.flags |=
-					IEEE80211_IBSS_AUTO_CHANNEL_SEL;
-			else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+			if (sdata->vif.type == NL80211_IFTYPE_STATION)
 				sdata->u.mgd.flags |=
 					IEEE80211_STA_AUTO_CHANNEL_SEL;
 			return 0;
@@ -183,6 +180,10 @@ static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 				   struct iw_freq *freq, char *extra)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(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->e = 6;
@@ -195,15 +196,17 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_point *data, char *ssid)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	size_t len = data->length;
 	int ret;
 
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
+
 	/* iwconfig uses nul termination in SSID.. */
 	if (len > 0 && ssid[len - 1] == '\0')
 		len--;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		if (data->flags)
 			sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
@@ -217,8 +220,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-		return ieee80211_ibss_set_ssid(sdata, ssid, len);
+	}
 
 	return -EOPNOTSUPP;
 }
@@ -229,9 +231,13 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 				    struct iw_point *data, char *ssid)
 {
 	size_t len;
-
 	struct ieee80211_sub_if_data *sdata;
+
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
+
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
 		if (res == 0) {
@@ -240,14 +246,6 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 		} else
 			data->flags = 0;
 		return res;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		int res = ieee80211_ibss_get_ssid(sdata, ssid, &len);
-		if (res == 0) {
-			data->length = len;
-			data->flags = 1;
-		} else
-			data->flags = 0;
-		return res;
 	}
 
 	return -EOPNOTSUPP;
@@ -258,9 +256,11 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 				 struct iw_request_info *info,
 				 struct sockaddr *ap_addr, char *extra)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		int ret;
 
@@ -277,16 +277,6 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 		sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
 		ieee80211_sta_req_auth(sdata);
 		return 0;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
-			sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
-					       IEEE80211_IBSS_AUTO_CHANNEL_SEL;
-		else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
-			sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL;
-		else
-			sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_BSSID_SEL;
-
-		return ieee80211_ibss_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
 		/*
 		 * If it is necessary to update the WDS peer address
@@ -312,9 +302,11 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 				 struct iw_request_info *info,
 				 struct sockaddr *ap_addr, char *extra)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 		if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
 			ap_addr->sa_family = ARPHRD_ETHER;
@@ -322,13 +314,6 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
 		} else
 			memset(&ap_addr->sa_data, 0, ETH_ALEN);
 		return 0;
-	} else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
-		if (sdata->u.ibss.state == IEEE80211_IBSS_MLME_JOINED) {
-			ap_addr->sa_family = ARPHRD_ETHER;
-			memcpy(&ap_addr->sa_data, sdata->u.ibss.bssid, ETH_ALEN);
-		} else
-			memset(&ap_addr->sa_data, 0, ETH_ALEN);
-		return 0;
 	} else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
 		ap_addr->sa_family = ARPHRD_ETHER;
 		memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
@@ -487,155 +472,6 @@ static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
 	return 0;
 }
 
-static int ieee80211_ioctl_siwrts(struct net_device *dev,
-				  struct iw_request_info *info,
-				  struct iw_param *rts, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	if (rts->disabled)
-		local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
-	else if (!rts->fixed)
-		/* if the rts value is not fixed, then take default */
-		local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
-	else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
-		return -EINVAL;
-	else
-		local->rts_threshold = rts->value;
-
-	/* If the wlan card performs RTS/CTS in hardware/firmware,
-	 * configure it here */
-
-	if (local->ops->set_rts_threshold)
-		local->ops->set_rts_threshold(local_to_hw(local),
-					     local->rts_threshold);
-
-	return 0;
-}
-
-static int ieee80211_ioctl_giwrts(struct net_device *dev,
-				  struct iw_request_info *info,
-				  struct iw_param *rts, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	rts->value = local->rts_threshold;
-	rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
-	rts->fixed = 1;
-
-	return 0;
-}
-
-
-static int ieee80211_ioctl_siwfrag(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_param *frag, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	if (frag->disabled)
-		local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	else if (!frag->fixed)
-		local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	else if (frag->value < 256 ||
-		 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
-		return -EINVAL;
-	else {
-		/* Fragment length must be even, so strip LSB. */
-		local->fragmentation_threshold = frag->value & ~0x1;
-	}
-
-	return 0;
-}
-
-static int ieee80211_ioctl_giwfrag(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_param *frag, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	frag->value = local->fragmentation_threshold;
-	frag->disabled = (frag->value >= IEEE80211_MAX_FRAG_THRESHOLD);
-	frag->fixed = 1;
-
-	return 0;
-}
-
-
-static int ieee80211_ioctl_siwretry(struct net_device *dev,
-				    struct iw_request_info *info,
-				    struct iw_param *retry, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	if (retry->disabled ||
-	    (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
-		return -EINVAL;
-
-	if (retry->flags & IW_RETRY_MAX) {
-		local->hw.conf.long_frame_max_tx_count = retry->value;
-	} else if (retry->flags & IW_RETRY_MIN) {
-		local->hw.conf.short_frame_max_tx_count = retry->value;
-	} else {
-		local->hw.conf.long_frame_max_tx_count = retry->value;
-		local->hw.conf.short_frame_max_tx_count = retry->value;
-	}
-
-	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
-
-	return 0;
-}
-
-
-static int ieee80211_ioctl_giwretry(struct net_device *dev,
-				    struct iw_request_info *info,
-				    struct iw_param *retry, char *extra)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	retry->disabled = 0;
-	if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
-		/* first return min value, iwconfig will ask max value
-		 * later if needed */
-		retry->flags |= IW_RETRY_LIMIT;
-		retry->value = local->hw.conf.short_frame_max_tx_count;
-		if (local->hw.conf.long_frame_max_tx_count !=
-		    local->hw.conf.short_frame_max_tx_count)
-			retry->flags |= IW_RETRY_MIN;
-		return 0;
-	}
-	if (retry->flags & IW_RETRY_MAX) {
-		retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
-		retry->value = local->hw.conf.long_frame_max_tx_count;
-	}
-
-	return 0;
-}
-
-static int ieee80211_ioctl_siwmlme(struct net_device *dev,
-				   struct iw_request_info *info,
-				   struct iw_point *data, char *extra)
-{
-	struct ieee80211_sub_if_data *sdata;
-	struct iw_mlme *mlme = (struct iw_mlme *) extra;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (!(sdata->vif.type == NL80211_IFTYPE_STATION))
-		return -EINVAL;
-
-	switch (mlme->cmd) {
-	case IW_MLME_DEAUTH:
-		/* TODO: mlme->addr.sa_data */
-		return ieee80211_sta_deauthenticate(sdata, mlme->reason_code);
-	case IW_MLME_DISASSOC:
-		/* TODO: mlme->addr.sa_data */
-		return ieee80211_sta_disassociate(sdata, mlme->reason_code);
-	default:
-		return -EOPNOTSUPP;
-	}
-}
-
-
 static int ieee80211_ioctl_siwencode(struct net_device *dev,
 				     struct iw_request_info *info,
 				     struct iw_point *erq, char *keybuf)
@@ -675,7 +511,7 @@ static int ieee80211_ioctl_siwencode(struct net_device *dev,
 		!sdata->default_key,
 		keybuf, erq->length);
 
-	if (!ret) {
+	if (!ret && sdata->vif.type == NL80211_IFTYPE_STATION) {
 		if (remove)
 			sdata->u.mgd.flags &= ~IEEE80211_STA_TKIP_WEP_USED;
 		else
@@ -747,7 +583,7 @@ static int ieee80211_ioctl_siwpower(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);
 	struct ieee80211_conf *conf = &local->hw.conf;
-	int ret = 0, timeout = 0;
+	int timeout = 0;
 	bool ps;
 
 	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
@@ -779,42 +615,18 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 		timeout = wrq->value / 1000;
 
  set:
-	if (ps == local->powersave && timeout == conf->dynamic_ps_timeout)
-		return ret;
+	if (ps == sdata->u.mgd.powersave && timeout == conf->dynamic_ps_timeout)
+		return 0;
 
-	local->powersave = ps;
+	sdata->u.mgd.powersave = ps;
 	conf->dynamic_ps_timeout = timeout;
 
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
-		ret = ieee80211_hw_config(local,
-					  IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 
-	if (!(sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
-		return ret;
+	ieee80211_recalc_ps(local, -1);
 
-	if (conf->dynamic_ps_timeout > 0 &&
-	    !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
-		mod_timer(&local->dynamic_ps_timer, jiffies +
-			  msecs_to_jiffies(conf->dynamic_ps_timeout));
-	} else {
-		if (local->powersave) {
-			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-				ieee80211_send_nullfunc(local, sdata, 1);
-			conf->flags |= IEEE80211_CONF_PS;
-			ret = ieee80211_hw_config(local,
-					IEEE80211_CONF_CHANGE_PS);
-		} else {
-			conf->flags &= ~IEEE80211_CONF_PS;
-			ret = ieee80211_hw_config(local,
-					IEEE80211_CONF_CHANGE_PS);
-			if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-				ieee80211_send_nullfunc(local, sdata, 0);
-			del_timer_sync(&local->dynamic_ps_timer);
-			cancel_work_sync(&local->dynamic_ps_enable_work);
-		}
-	}
-
-	return ret;
+	return 0;
 }
 
 static int ieee80211_ioctl_giwpower(struct net_device *dev,
@@ -822,9 +634,9 @@ static int ieee80211_ioctl_giwpower(struct net_device *dev,
 				    union iwreq_data *wrqu,
 				    char *extra)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	wrqu->power.disabled = !local->powersave;
+	wrqu->power.disabled = !sdata->u.mgd.powersave;
 
 	return 0;
 }
@@ -1099,7 +911,7 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* SIOCGIWTHRSPY */
 	(iw_handler) ieee80211_ioctl_siwap,		/* SIOCSIWAP */
 	(iw_handler) ieee80211_ioctl_giwap,		/* SIOCGIWAP */
-	(iw_handler) ieee80211_ioctl_siwmlme,		/* SIOCSIWMLME */
+	(iw_handler) cfg80211_wext_siwmlme,		/* SIOCSIWMLME */
 	(iw_handler) NULL,				/* SIOCGIWAPLIST */
 	(iw_handler) cfg80211_wext_siwscan,		/* SIOCSIWSCAN */
 	(iw_handler) cfg80211_wext_giwscan,		/* SIOCGIWSCAN */
@@ -1111,14 +923,14 @@ static const iw_handler ieee80211_handler[] =
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) ieee80211_ioctl_siwrate,		/* SIOCSIWRATE */
 	(iw_handler) ieee80211_ioctl_giwrate,		/* SIOCGIWRATE */
-	(iw_handler) ieee80211_ioctl_siwrts,		/* SIOCSIWRTS */
-	(iw_handler) ieee80211_ioctl_giwrts,		/* SIOCGIWRTS */
-	(iw_handler) ieee80211_ioctl_siwfrag,		/* SIOCSIWFRAG */
-	(iw_handler) ieee80211_ioctl_giwfrag,		/* SIOCGIWFRAG */
+	(iw_handler) cfg80211_wext_siwrts,		/* SIOCSIWRTS */
+	(iw_handler) cfg80211_wext_giwrts,		/* SIOCGIWRTS */
+	(iw_handler) cfg80211_wext_siwfrag,		/* SIOCSIWFRAG */
+	(iw_handler) cfg80211_wext_giwfrag,		/* SIOCGIWFRAG */
 	(iw_handler) ieee80211_ioctl_siwtxpower,	/* SIOCSIWTXPOW */
 	(iw_handler) ieee80211_ioctl_giwtxpower,	/* SIOCGIWTXPOW */
-	(iw_handler) ieee80211_ioctl_siwretry,		/* SIOCSIWRETRY */
-	(iw_handler) ieee80211_ioctl_giwretry,		/* SIOCGIWRETRY */
+	(iw_handler) cfg80211_wext_siwretry,		/* SIOCSIWRETRY */
+	(iw_handler) cfg80211_wext_giwretry,		/* SIOCGIWRETRY */
 	(iw_handler) ieee80211_ioctl_siwencode,		/* SIOCSIWENCODE */
 	(iw_handler) ieee80211_ioctl_giwencode,		/* SIOCGIWENCODE */
 	(iw_handler) ieee80211_ioctl_siwpower,		/* SIOCSIWPOWER */
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 4f8bfea278f..dcfae8884b8 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -122,7 +122,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
 			return RX_DROP_UNUSABLE;
 
 		mac80211_ev_michael_mic_failure(rx->sdata, rx->key->conf.keyidx,
-						(void *) skb->data);
+						(void *) skb->data, NULL);
 		return RX_DROP_UNUSABLE;
 	}