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

25 files changed, 606 insertions, 135 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 18bd0e5..0c54407 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1299,6 +1299,13 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	int err;
 
+	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
+		err = drv_set_frag_threshold(local, wiphy->frag_threshold);
+
+		if (err)
+			return err;
+	}
+
 	if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
 		err = drv_set_coverage_class(local, wiphy->coverage_class);
 
@@ -1621,6 +1628,23 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
 	ieee80211_queue_work(&local->hw, &local->reconfig_filter);
 }
 
+static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	if (local->started)
+		return -EOPNOTSUPP;
+
+	return drv_set_antenna(local, tx_ant, rx_ant);
+}
+
+static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	return drv_get_antenna(local, tx_ant, rx_ant);
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1673,4 +1697,6 @@ struct cfg80211_ops mac80211_config_ops = {
 	.mgmt_tx = ieee80211_mgmt_tx,
 	.set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
 	.mgmt_frame_register = ieee80211_mgmt_frame_register,
+	.set_antenna = ieee80211_set_antenna,
+	.get_antenna = ieee80211_get_antenna,
 };
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 1698382..4244554 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -233,6 +233,20 @@ static inline void drv_get_tkip_seq(struct ieee80211_local *local,
 	trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16);
 }
 
+static inline int drv_set_frag_threshold(struct ieee80211_local *local,
+					u32 value)
+{
+	int ret = 0;
+
+	might_sleep();
+
+	trace_drv_set_frag_threshold(local, value);
+	if (local->ops->set_frag_threshold)
+		ret = local->ops->set_frag_threshold(&local->hw, value);
+	trace_drv_return_int(local, ret);
+	return ret;
+}
+
 static inline int drv_set_rts_threshold(struct ieee80211_local *local,
 					u32 value)
 {
@@ -428,4 +442,27 @@ static inline void drv_channel_switch(struct ieee80211_local *local,
 	trace_drv_return_void(local);
 }
 
+
+static inline int drv_set_antenna(struct ieee80211_local *local,
+				  u32 tx_ant, u32 rx_ant)
+{
+	int ret = -EOPNOTSUPP;
+	might_sleep();
+	if (local->ops->set_antenna)
+		ret = local->ops->set_antenna(&local->hw, tx_ant, rx_ant);
+	trace_drv_set_antenna(local, tx_ant, rx_ant, ret);
+	return ret;
+}
+
+static inline int drv_get_antenna(struct ieee80211_local *local,
+				  u32 *tx_ant, u32 *rx_ant)
+{
+	int ret = -EOPNOTSUPP;
+	might_sleep();
+	if (local->ops->get_antenna)
+		ret = local->ops->get_antenna(&local->hw, tx_ant, rx_ant);
+	trace_drv_get_antenna(local, *tx_ant, *rx_ant, ret);
+	return ret;
+}
+
 #endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 6831fb1..c2772f2 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -531,6 +531,27 @@ TRACE_EVENT(drv_get_tkip_seq,
 	)
 );
 
+TRACE_EVENT(drv_set_frag_threshold,
+	TP_PROTO(struct ieee80211_local *local, u32 value),
+
+	TP_ARGS(local, value),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		__field(u32, value)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		__entry->value = value;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT " value:%d",
+		LOCAL_PR_ARG, __entry->value
+	)
+);
+
 TRACE_EVENT(drv_set_rts_threshold,
 	TP_PROTO(struct ieee80211_local *local, u32 value),
 
@@ -862,6 +883,56 @@ TRACE_EVENT(drv_channel_switch,
 	)
 );
 
+TRACE_EVENT(drv_set_antenna,
+	TP_PROTO(struct ieee80211_local *local, u32 tx_ant, u32 rx_ant, int ret),
+
+	TP_ARGS(local, tx_ant, rx_ant, ret),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		__field(u32, tx_ant)
+		__field(u32, rx_ant)
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		__entry->tx_ant = tx_ant;
+		__entry->rx_ant = rx_ant;
+		__entry->ret = ret;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT " tx_ant:%d rx_ant:%d ret:%d",
+		LOCAL_PR_ARG, __entry->tx_ant, __entry->rx_ant, __entry->ret
+	)
+);
+
+TRACE_EVENT(drv_get_antenna,
+	TP_PROTO(struct ieee80211_local *local, u32 tx_ant, u32 rx_ant, int ret),
+
+	TP_ARGS(local, tx_ant, rx_ant, ret),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		__field(u32, tx_ant)
+		__field(u32, rx_ant)
+		__field(int, ret)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		__entry->tx_ant = tx_ant;
+		__entry->rx_ant = rx_ant;
+		__entry->ret = ret;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT " tx_ant:%d rx_ant:%d ret:%d",
+		LOCAL_PR_ARG, __entry->tx_ant, __entry->rx_ant, __entry->ret
+	)
+);
+
 /*
  * Tracing for API calls that drivers call.
  */
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 239c483..410d104 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -915,6 +915,8 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 
 	sdata->u.ibss.privacy = params->privacy;
 	sdata->u.ibss.basic_rates = params->basic_rates;
+	memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate,
+	       sizeof(params->mcast_rate));
 
 	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b80c386..5bc0745 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -349,6 +349,7 @@ struct ieee80211_if_managed {
 	struct work_struct chswitch_work;
 	struct work_struct beacon_connection_loss_work;
 
+	unsigned long beacon_timeout;
 	unsigned long probe_timeout;
 	int probe_send_count;
 
@@ -1264,6 +1265,8 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 			     int powersave);
 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
 			     struct ieee80211_hdr *hdr);
+void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
+			     struct ieee80211_hdr *hdr);
 void ieee80211_beacon_connection_loss_work(struct work_struct *work);
 
 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
@@ -1278,6 +1281,9 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local,
 			       struct sk_buff *skb);
 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
 			       struct sk_buff_head *skbs);
+int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
+				  struct sk_buff_head *skbs,
+				  void (*fn)(void *data), void *data);
 
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u16 transaction, u16 auth_alg,
@@ -1287,6 +1293,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 			     const u8 *ie, size_t ie_len,
 			     enum ieee80211_band band, u32 rate_mask,
 			     u8 channel);
+struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
+					  u8 *dst,
+					  const u8 *ssid, size_t ssid_len,
+					  const u8 *ie, size_t ie_len);
 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 			      const u8 *ssid, size_t ssid_len,
 			      const u8 *ie, size_t ie_len);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index ccd676b..72df1ca 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -84,10 +84,17 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 		goto out_unsupported;
 
 	sdata = key->sdata;
-	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+		/*
+		 * The driver doesn't know anything about VLAN interfaces.
+		 * Hence, don't send GTKs for VLAN interfaces to the driver.
+		 */
+		if (!(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE))
+			goto out_unsupported;
 		sdata = container_of(sdata->bss,
 				     struct ieee80211_sub_if_data,
 				     u.ap);
+	}
 
 	ret = drv_set_key(key->local, SET_KEY, sdata, sta, &key->conf);
 
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index a3a9421..7948079 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -28,13 +28,19 @@
 #include "rate.h"
 #include "led.h"
 
+#define IEEE80211_MAX_NULLFUNC_TRIES 2
 #define IEEE80211_MAX_PROBE_TRIES 5
 
 /*
- * beacon loss detection timeout
- * XXX: should depend on beacon interval
+ * Beacon loss timeout is calculated as N frames times the
+ * advertised beacon interval.  This may need to be somewhat
+ * higher than what hardware might detect to account for
+ * delays in the host processing frames. But since we also
+ * probe on beacon miss before declaring the connection lost
+ * default to what we want.
  */
-#define IEEE80211_BEACON_LOSS_TIME	(2 * HZ)
+#define IEEE80211_BEACON_LOSS_COUNT	7
+
 /*
  * Time the connection can be idle before we probe
  * it to see if we can still talk to the AP.
@@ -121,7 +127,7 @@ void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata)
 		return;
 
 	mod_timer(&sdata->u.mgd.bcn_mon_timer,
-		  round_jiffies_up(jiffies + IEEE80211_BEACON_LOSS_TIME));
+		  round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout));
 }
 
 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata)
@@ -871,6 +877,9 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	bss_info_changed |= ieee80211_handle_bss_capability(sdata,
 		cbss->capability, bss->has_erp_value, bss->erp_value);
 
+	sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec(
+		IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int));
+
 	sdata->u.mgd.associated = cbss;
 	memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
 
@@ -1026,6 +1035,51 @@ void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
 	ieee80211_sta_reset_conn_monitor(sdata);
 }
 
+static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+	if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
+			      IEEE80211_STA_CONNECTION_POLL)))
+	    return;
+
+	ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
+			  IEEE80211_STA_BEACON_POLL);
+	mutex_lock(&sdata->local->iflist_mtx);
+	ieee80211_recalc_ps(sdata->local, -1);
+	mutex_unlock(&sdata->local->iflist_mtx);
+
+	if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
+		return;
+
+	/*
+	 * We've received a probe response, but are not sure whether
+	 * we have or will be receiving any beacons or data, so let's
+	 * schedule the timers again, just in case.
+	 */
+	ieee80211_sta_reset_beacon_monitor(sdata);
+
+	mod_timer(&ifmgd->conn_mon_timer,
+		  round_jiffies_up(jiffies +
+				   IEEE80211_CONNECTION_IDLE_TIME));
+}
+
+void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
+			     struct ieee80211_hdr *hdr)
+{
+	if (!ieee80211_is_data(hdr->frame_control) &&
+	    !ieee80211_is_nullfunc(hdr->frame_control))
+	    return;
+
+	ieee80211_sta_reset_conn_monitor(sdata);
+
+	if (ieee80211_is_nullfunc(hdr->frame_control) &&
+	    sdata->u.mgd.probe_send_count > 0) {
+		sdata->u.mgd.probe_send_count = 0;
+		ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+	}
+}
+
 static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -1041,8 +1095,19 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 	if (ifmgd->probe_send_count >= unicast_limit)
 		dst = NULL;
 
-	ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
-	ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0);
+	/*
+	 * When the hardware reports an accurate Tx ACK status, it's
+	 * better to send a nullfunc frame instead of a probe request,
+	 * as it will kick us off the AP quickly if we aren't associated
+	 * anymore. The timeout will be reset if the frame is ACKed by
+	 * the AP.
+	 */
+	if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+		ieee80211_send_nullfunc(sdata->local, sdata, 0);
+	else {
+		ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
+		ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0);
+	}
 
 	ifmgd->probe_send_count++;
 	ifmgd->probe_timeout = jiffies + IEEE80211_PROBE_WAIT;
@@ -1108,6 +1173,30 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 	mutex_unlock(&ifmgd->mtx);
 }
 
+struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
+					  struct ieee80211_vif *vif)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	struct sk_buff *skb;
+	const u8 *ssid;
+
+	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
+		return NULL;
+
+	ASSERT_MGD_MTX(ifmgd);
+
+	if (!ifmgd->associated)
+		return NULL;
+
+	ssid = ieee80211_bss_get_ie(ifmgd->associated, WLAN_EID_SSID);
+	skb = ieee80211_build_probe_req(sdata, ifmgd->associated->bssid,
+					ssid + 2, ssid[1], NULL, 0);
+
+	return skb;
+}
+EXPORT_SYMBOL(ieee80211_ap_probereq_get);
+
 static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -1485,29 +1574,8 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 	ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
 
 	if (ifmgd->associated &&
-	    memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0 &&
-	    ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL)) {
-		ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
-				  IEEE80211_STA_BEACON_POLL);
-		mutex_lock(&sdata->local->iflist_mtx);
-		ieee80211_recalc_ps(sdata->local, -1);
-		mutex_unlock(&sdata->local->iflist_mtx);
-
-		if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
-			return;
-
-		/*
-		 * We've received a probe response, but are not sure whether
-		 * we have or will be receiving any beacons or data, so let's
-		 * schedule the timers again, just in case.
-		 */
-		ieee80211_sta_reset_beacon_monitor(sdata);
-
-		mod_timer(&ifmgd->conn_mon_timer,
-			  round_jiffies_up(jiffies +
-					   IEEE80211_CONNECTION_IDLE_TIME));
-	}
+	    memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0)
+		ieee80211_reset_ap_probe(sdata);
 }
 
 /*
@@ -1857,12 +1925,23 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 			    IEEE80211_STA_CONNECTION_POLL) &&
 	    ifmgd->associated) {
 		u8 bssid[ETH_ALEN];
+		int max_tries;
 
 		memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
-		if (time_is_after_jiffies(ifmgd->probe_timeout))
+
+		if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+			max_tries = IEEE80211_MAX_NULLFUNC_TRIES;
+		else
+			max_tries = IEEE80211_MAX_PROBE_TRIES;
+
+		/* ACK received for nullfunc probing frame */
+		if (!ifmgd->probe_send_count)
+			ieee80211_reset_ap_probe(sdata);
+
+		else if (time_is_after_jiffies(ifmgd->probe_timeout))
 			run_again(ifmgd, ifmgd->probe_timeout);
 
-		else if (ifmgd->probe_send_count < IEEE80211_MAX_PROBE_TRIES) {
+		else if (ifmgd->probe_send_count < max_tries) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 			wiphy_debug(local->hw.wiphy,
 				    "%s: No probe response from AP %pM"
@@ -1988,6 +2067,8 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 		add_timer(&ifmgd->timer);
 	if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
 		add_timer(&ifmgd->chswitch_timer);
+	ieee80211_sta_reset_beacon_monitor(sdata);
+	ieee80211_restart_sta_timer(sdata);
 }
 #endif
 
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 33f7699..3d5a2cb 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -211,7 +211,8 @@ static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc)
 	return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc);
 }
 
-static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx)
+static void rc_send_low_broadcast(s8 *idx, u32 basic_rates,
+				  struct ieee80211_supported_band *sband)
 {
 	u8 i;
 
@@ -222,7 +223,7 @@ static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx)
 	if (basic_rates & (1 << *idx))
 		return; /* selected rate is a basic rate */
 
-	for (i = *idx + 1; i <= max_rate_idx; i++) {
+	for (i = *idx + 1; i <= sband->n_bitrates; i++) {
 		if (basic_rates & (1 << i)) {
 			*idx = i;
 			return;
@@ -237,16 +238,25 @@ bool rate_control_send_low(struct ieee80211_sta *sta,
 			   struct ieee80211_tx_rate_control *txrc)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
+	struct ieee80211_supported_band *sband = txrc->sband;
+	int mcast_rate;
 
 	if (!sta || !priv_sta || rc_no_data_or_no_ack(txrc)) {
 		info->control.rates[0].idx = rate_lowest_index(txrc->sband, sta);
 		info->control.rates[0].count =
 			(info->flags & IEEE80211_TX_CTL_NO_ACK) ?
 			1 : txrc->hw->max_rate_tries;
-		if (!sta && txrc->ap)
+		if (!sta && txrc->bss) {
+			mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
+			if (mcast_rate > 0) {
+				info->control.rates[0].idx = mcast_rate - 1;
+				return true;
+			}
+
 			rc_send_low_broadcast(&info->control.rates[0].idx,
 					      txrc->bss_conf->basic_rates,
-					      txrc->sband->n_bitrates);
+					      sband);
+		}
 		return true;
 	}
 	return false;
diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 2d6f025..4ad7a36 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -371,6 +371,9 @@ minstrel_aggr_check(struct minstrel_priv *mp, struct ieee80211_sta *pubsta, stru
 	if (likely(sta->ampdu_mlme.tid_tx[tid]))
 		return;
 
+	if (skb_get_queue_mapping(skb) == IEEE80211_AC_VO)
+		return;
+
 	ieee80211_start_tx_ba_session(pubsta, tid);
 }
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 902b03ee..d2fcd22 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1102,8 +1102,6 @@ static void ap_sta_ps_end(struct sta_info *sta)
 
 	atomic_dec(&sdata->bss->num_sta_ps);
 
-	clear_sta_flags(sta, WLAN_STA_PS_STA);
-
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n",
 	       sdata->name, sta->sta.addr, sta->sta.aid);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 6d8f897..eff5857 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -199,8 +199,11 @@ static void sta_unblock(struct work_struct *wk)
 
 	if (!test_sta_flags(sta, WLAN_STA_PS_STA))
 		ieee80211_sta_ps_deliver_wakeup(sta);
-	else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL))
+	else if (test_and_clear_sta_flags(sta, WLAN_STA_PSPOLL)) {
+		clear_sta_flags(sta, WLAN_STA_PS_DRIVER);
 		ieee80211_sta_ps_deliver_poll_response(sta);
+	} else
+		clear_sta_flags(sta, WLAN_STA_PS_DRIVER);
 }
 
 static int sta_prepare_rate_control(struct ieee80211_local *local,
@@ -880,6 +883,13 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_vif *vif,
 }
 EXPORT_SYMBOL(ieee80211_find_sta);
 
+static void clear_sta_ps_flags(void *_sta)
+{
+	struct sta_info *sta = _sta;
+
+	clear_sta_flags(sta, WLAN_STA_PS_DRIVER | WLAN_STA_PS_STA);
+}
+
 /* powersave support code */
 void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
 {
@@ -894,7 +904,8 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
 
 	/* Send all buffered frames to the station */
 	sent = ieee80211_add_pending_skbs(local, &sta->tx_filtered);
-	buffered = ieee80211_add_pending_skbs(local, &sta->ps_tx_buf);
+	buffered = ieee80211_add_pending_skbs_fn(local, &sta->ps_tx_buf,
+						 clear_sta_ps_flags, sta);
 	sent += buffered;
 	local->total_ps_buffered -= buffered;
 
@@ -973,7 +984,7 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw,
 
 	if (block)
 		set_sta_flags(sta, WLAN_STA_PS_DRIVER);
-	else
+	else if (test_sta_flags(sta, WLAN_STA_PS_DRIVER))
 		ieee80211_queue_work(hw, &sta->drv_unblock_wk);
 }
 EXPORT_SYMBOL(ieee80211_sta_block_awake);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 9265aca..b562d9b 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -248,6 +248,7 @@ enum plink_state {
  * @sta: station information we share with the driver
  * @dead: set to true when sta is unlinked
  * @uploaded: set to true when sta is uploaded to the driver
+ * @lost_packets: number of consecutive lost packets
  */
 struct sta_info {
 	/* General information, mostly static */
@@ -335,6 +336,8 @@ struct sta_info {
 	} debugfs;
 #endif
 
+	unsigned int lost_packets;
+
 	/* keep last! */
 	struct ieee80211_sta sta;
 };
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 3153c19..bed7e32 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -155,8 +155,21 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
 
 		ieee80211_queue_work(&local->hw, &local->recalc_smps);
 	}
+
+	if ((sdata->vif.type == NL80211_IFTYPE_STATION) &&
+	    (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS))
+		ieee80211_sta_tx_notify(sdata, (void *) skb->data);
 }
 
+/*
+ * Use a static threshold for now, best value to be determined
+ * by testing ...
+ * Should it depend on:
+ *  - on # of retransmissions
+ *  - current throughput (higher value for higher tpt)?
+ */
+#define STA_LOST_PKT_THRESHOLD	50
+
 void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 {
 	struct sk_buff *skb2;
@@ -243,6 +256,19 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 		if (!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
 		    (info->flags & IEEE80211_TX_STAT_ACK))
 			ieee80211_frame_acked(sta, skb);
+
+		if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
+			if (info->flags & IEEE80211_TX_STAT_ACK) {
+				if (sta->lost_packets)
+					sta->lost_packets = 0;
+			} else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) {
+				cfg80211_cqm_pktloss_notify(sta->sdata->dev,
+							    sta->sta.addr,
+							    sta->lost_packets,
+							    GFP_ATOMIC);
+				sta->lost_packets = 0;
+			}
+		}
 	}
 
 	rcu_read_unlock();
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 96c5943..e694836 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -622,7 +622,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 		txrc.max_rate_idx = -1;
 	else
 		txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
-	txrc.ap = tx->sdata->vif.type == NL80211_IFTYPE_AP;
+	txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
+		    tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
 
 	/* set up RTS protection if desired */
 	if (len > tx->local->hw.wiphy->rts_threshold) {
@@ -1033,6 +1034,7 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 	struct ieee80211_radiotap_header *rthdr =
 		(struct ieee80211_radiotap_header *) skb->data;
 	struct ieee80211_supported_band *sband;
+	bool hw_frag;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len,
 						   NULL);
@@ -1042,6 +1044,9 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 	info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
 	tx->flags &= ~IEEE80211_TX_FRAGMENTED;
 
+	/* packet is fragmented in HW if we have a non-NULL driver callback */
+	hw_frag = (tx->local->ops->set_frag_threshold != NULL);
+
 	/*
 	 * for every radiotap entry that is present
 	 * (ieee80211_radiotap_iterator_next returns -ENOENT when no more
@@ -1078,7 +1083,8 @@ static bool __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 			}
 			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
 				info->flags &= ~IEEE80211_TX_INTFL_DONT_ENCRYPT;
-			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
+			if ((*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) &&
+								!hw_frag)
 				tx->flags |= IEEE80211_TX_FRAGMENTED;
 			break;
 
@@ -1181,8 +1187,10 @@ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
 	/*
 	 * Set this flag (used below to indicate "automatic fragmentation"),
 	 * it will be cleared/left by radiotap as desired.
+	 * Only valid when fragmentation is done by the stack.
 	 */
-	tx->flags |= IEEE80211_TX_FRAGMENTED;
+	if (!local->ops->set_frag_threshold)
+		tx->flags |= IEEE80211_TX_FRAGMENTED;
 
 	/* process and remove the injection radiotap header */
 	if (unlikely(info->flags & IEEE80211_TX_INTFL_HAS_RADIOTAP)) {
@@ -2301,7 +2309,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		txrc.max_rate_idx = -1;
 	else
 		txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
-	txrc.ap = true;
+	txrc.bss = true;
 	rate_control_get_rate(sdata, NULL, &txrc);
 
 	info->control.vif = vif;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0b6fc92..e497476 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -368,8 +368,9 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local,
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 }
 
-int ieee80211_add_pending_skbs(struct ieee80211_local *local,
-			       struct sk_buff_head *skbs)
+int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
+				  struct sk_buff_head *skbs,
+				  void (*fn)(void *data), void *data)
 {
 	struct ieee80211_hw *hw = &local->hw;
 	struct sk_buff *skb;
@@ -394,6 +395,9 @@ int ieee80211_add_pending_skbs(struct ieee80211_local *local,
 		__skb_queue_tail(&local->pending[queue], skb);
 	}
 
+	if (fn)
+		fn(data);
+
 	for (i = 0; i < hw->queues; i++)
 		__ieee80211_wake_queue(hw, i,
 			IEEE80211_QUEUE_STOP_REASON_SKB_ADD);
@@ -402,6 +406,12 @@ int ieee80211_add_pending_skbs(struct ieee80211_local *local,
 	return ret;
 }
 
+int ieee80211_add_pending_skbs(struct ieee80211_local *local,
+			       struct sk_buff_head *skbs)
+{
+	return ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
+}
+
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
 				    enum queue_stop_reason reason)
 {
@@ -1011,9 +1021,10 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 	return pos - buffer;
 }
 
-void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
-			      const u8 *ssid, size_t ssid_len,
-			      const u8 *ie, size_t ie_len)
+struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
+					  u8 *dst,
+					  const u8 *ssid, size_t ssid_len,
+					  const u8 *ie, size_t ie_len)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
@@ -1027,7 +1038,7 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	if (!buf) {
 		printk(KERN_DEBUG "%s: failed to allocate temporary IE "
 		       "buffer\n", sdata->name);
-		return;
+		return NULL;
 	}
 
 	chan = ieee80211_frequency_to_channel(
@@ -1050,8 +1061,20 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 	}
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
-	ieee80211_tx_skb(sdata, skb);
 	kfree(buf);
+
+	return skb;
+}
+
+void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
+			      const u8 *ssid, size_t ssid_len,
+			      const u8 *ie, size_t ie_len)
+{
+	struct sk_buff *skb;
+
+	skb = ieee80211_build_probe_req(sdata, dst, ssid, ssid_len, ie, ie_len);
+	if (skb)
+		ieee80211_tx_skb(sdata, skb);
 }
 
 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
@@ -1152,6 +1175,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 	}
 	mutex_unlock(&local->sta_mtx);
 
+	/* setup fragmentation threshold */
+	drv_set_frag_threshold(local, hw->wiphy->frag_threshold);
+
 	/* setup RTS threshold */
 	drv_set_rts_threshold(local, hw->wiphy->rts_threshold);
 
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 34e6d02..58e75bb 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -21,7 +21,16 @@
 /* Default mapping in classifier to work with default
  * queue setup.
  */
-const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
+const int ieee802_1d_to_ac[8] = {
+	IEEE80211_AC_BE,
+	IEEE80211_AC_BK,
+	IEEE80211_AC_BK,
+	IEEE80211_AC_BE,
+	IEEE80211_AC_VI,
+	IEEE80211_AC_VI,
+	IEEE80211_AC_VO,
+	IEEE80211_AC_VO
+};
 
 static int wme_downgrade_ac(struct sk_buff *skb)
 {
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 9c21ebf..630bcf0 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -4,6 +4,8 @@
  * Copyright 2006-2010		Johannes Berg <johannes@sipsolutions.net>
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/if.h>
 #include <linux/module.h>
 #include <linux/err.h>
@@ -216,8 +218,7 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
 			    rdev->wiphy.debugfsdir,
 			    rdev->wiphy.debugfsdir->d_parent,
 			    newname))
-		printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
-		       newname);
+		pr_err("failed to rename debugfs dir to %s!\n", newname);
 
 	nl80211_notify_dev_rename(rdev);
 
@@ -699,8 +700,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 
 		if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
 				      "phy80211")) {
-			printk(KERN_ERR "wireless: failed to add phy80211 "
-				"symlink to netdev!\n");
+			pr_err("failed to add phy80211 symlink to netdev!\n");
 		}
 		wdev->netdev = dev;
 		wdev->sme_state = CFG80211_SME_IDLE;
diff --git a/net/wireless/lib80211.c b/net/wireless/lib80211.c
index 97d411f..3268fac 100644
--- a/net/wireless/lib80211.c
+++ b/net/wireless/lib80211.c
@@ -13,6 +13,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/ctype.h>
 #include <linux/ieee80211.h>
@@ -224,8 +226,8 @@ int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops)
 	return -EINVAL;
 
       found:
-	printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm "
-	       "'%s'\n", ops->name);
+	printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm '%s'\n",
+	       ops->name);
 	list_del(&alg->list);
 	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
 	kfree(alg);
@@ -270,7 +272,7 @@ static struct lib80211_crypto_ops lib80211_crypt_null = {
 
 static int __init lib80211_init(void)
 {
-	printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION "\n");
+	pr_info(DRV_DESCRIPTION "\n");
 	return lib80211_register_crypto_ops(&lib80211_crypt_null);
 }
 
diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c
index 0fe4051..7ea4f2b 100644
--- a/net/wireless/lib80211_crypt_tkip.c
+++ b/net/wireless/lib80211_crypt_tkip.c
@@ -10,6 +10,8 @@
  * more details.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -99,8 +101,7 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_arc4)) {
-		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
-		       "crypto API arc4\n");
+		printk(KERN_DEBUG pr_fmt("could not allocate crypto API arc4\n"));
 		priv->tx_tfm_arc4 = NULL;
 		goto fail;
 	}
@@ -108,8 +109,7 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 						 CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_michael)) {
-		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
-		       "crypto API michael_mic\n");
+		printk(KERN_DEBUG pr_fmt("could not allocate crypto API michael_mic\n"));
 		priv->tx_tfm_michael = NULL;
 		goto fail;
 	}
@@ -117,8 +117,7 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_arc4)) {
-		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
-		       "crypto API arc4\n");
+		printk(KERN_DEBUG pr_fmt("could not allocate crypto API arc4\n"));
 		priv->rx_tfm_arc4 = NULL;
 		goto fail;
 	}
@@ -126,8 +125,7 @@ static void *lib80211_tkip_init(int key_idx)
 	priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 						 CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_michael)) {
-		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
-		       "crypto API michael_mic\n");
+		printk(KERN_DEBUG pr_fmt("could not allocate crypto API michael_mic\n"));
 		priv->rx_tfm_michael = NULL;
 		goto fail;
 	}
@@ -536,7 +534,7 @@ static int michael_mic(struct crypto_hash *tfm_michael, u8 * key, u8 * hdr,
 	struct scatterlist sg[2];
 
 	if (tfm_michael == NULL) {
-		printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
+		pr_warn("%s(): tfm_michael == NULL\n", __func__);
 		return -1;
 	}
 	sg_init_table(sg, 2);
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 26838d9..6980a0c 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1028,3 +1028,15 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
 	nl80211_send_cqm_rssi_notify(rdev, dev, rssi_event, gfp);
 }
 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
+
+void cfg80211_cqm_pktloss_notify(struct net_device *dev,
+				 const u8 *peer, u32 num_packets, gfp_t gfp)
+{
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	/* Indicate roaming trigger event to user space */
+	nl80211_send_cqm_pktloss_notify(rdev, dev, peer, num_packets, gfp);
+}
+EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 4e78e3f..67ff7e9 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -166,7 +166,13 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 
 	[NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
 	[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
+
 	[NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
+
+	[NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
+	[NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
+
+	[NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
 };
 
 /* policy for the key attributes */
@@ -526,7 +532,6 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 		    dev->wiphy.rts_threshold);
 	NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
 		    dev->wiphy.coverage_class);
-
 	NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
 		   dev->wiphy.max_scan_ssids);
 	NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
@@ -545,6 +550,16 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
 		NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
 
+	if (dev->ops->get_antenna) {
+		u32 tx_ant = 0, rx_ant = 0;
+		int res;
+		res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
+		if (!res) {
+			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
+			NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
+		}
+	}
+
 	nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
 	if (!nl_modes)
 		goto nla_put_failure;
@@ -1024,6 +1039,22 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 			goto bad_res;
 	}
 
+	if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
+	    info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
+		u32 tx_ant, rx_ant;
+		if (!rdev->ops->set_antenna) {
+			result = -EOPNOTSUPP;
+			goto bad_res;
+		}
+
+		tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
+		rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
+
+		result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
+		if (result)
+			goto bad_res;
+	}
+
 	changed = 0;
 
 	if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
@@ -3569,6 +3600,34 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
 				      local_state_change);
 }
 
+static bool
+nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
+			 int mcast_rate[IEEE80211_NUM_BANDS],
+			 int rateval)
+{
+	struct wiphy *wiphy = &rdev->wiphy;
+	bool found = false;
+	int band, i;
+
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		struct ieee80211_supported_band *sband;
+
+		sband = wiphy->bands[band];
+		if (!sband)
+			continue;
+
+		for (i = 0; i < sband->n_bitrates; i++) {
+			if (sband->bitrates[i].bitrate == rateval) {
+				mcast_rate[band] = i + 1;
+				found = true;
+				break;
+			}
+		}
+	}
+
+	return found;
+}
+
 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -3653,6 +3712,11 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
+	if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
+	    !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
+			nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
+		return -EINVAL;
+
 	if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
 		connkeys = nl80211_parse_connkeys(rdev,
 					info->attrs[NL80211_ATTR_KEYS]);
@@ -5651,6 +5715,51 @@ nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
 	nlmsg_free(msg);
 }
 
+void
+nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
+				struct net_device *netdev, const u8 *peer,
+				u32 num_packets, gfp_t gfp)
+{
+	struct sk_buff *msg;
+	struct nlattr *pinfoattr;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
+
+	pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
+	if (!pinfoattr)
+		goto nla_put_failure;
+
+	NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
+
+	nla_nest_end(msg, pinfoattr);
+
+	if (genlmsg_end(msg, hdr) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+				nl80211_mlme_mcgrp.id, gfp);
+	return;
+
+ nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+	nlmsg_free(msg);
+}
+
 static int nl80211_netlink_notify(struct notifier_block * nb,
 				  unsigned long state,
 				  void *_notify)
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index 30d2f93..16c2f71 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -87,5 +87,9 @@ nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
 			     struct net_device *netdev,
 			     enum nl80211_cqm_rssi_threshold_event rssi_event,
 			     gfp_t gfp);
+void
+nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
+				struct net_device *netdev, const u8 *peer,
+				u32 num_packets, gfp_t gfp);
 
 #endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 3be18d9..5ed615f 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -32,6 +32,9 @@
  * rely on some SHA1 checksum of the regdomain for example.
  *
  */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/list.h>
@@ -48,7 +51,7 @@
 #ifdef CONFIG_CFG80211_REG_DEBUG
 #define REG_DBG_PRINT(format, args...) \
 	do { \
-		printk(KERN_DEBUG "cfg80211: " format , ## args); \
+		printk(KERN_DEBUG pr_fmt(format), ##args);	\
 	} while (0)
 #else
 #define REG_DBG_PRINT(args...)
@@ -96,6 +99,9 @@ struct reg_beacon {
 	struct ieee80211_channel chan;
 };
 
+static void reg_todo(struct work_struct *work);
+static DECLARE_WORK(reg_work, reg_todo);
+
 /* We keep a static world regulatory domain in case of the absence of CRDA */
 static const struct ieee80211_regdomain world_regdom = {
 	.n_reg_rules = 5,
@@ -367,11 +373,10 @@ static int call_crda(const char *alpha2)
 	};
 
 	if (!is_world_regdom((char *) alpha2))
-		printk(KERN_INFO "cfg80211: Calling CRDA for country: %c%c\n",
+		pr_info("Calling CRDA for country: %c%c\n",
 			alpha2[0], alpha2[1]);
 	else
-		printk(KERN_INFO "cfg80211: Calling CRDA to update world "
-			"regulatory domain\n");
+		pr_info("Calling CRDA to update world regulatory domain\n");
 
 	/* query internal regulatory database (if it exists) */
 	reg_regdb_query(alpha2);
@@ -1317,6 +1322,21 @@ static int ignore_request(struct wiphy *wiphy,
 	return -EINVAL;
 }
 
+static void reg_set_request_processed(void)
+{
+	bool need_more_processing = false;
+
+	last_request->processed = true;
+
+	spin_lock(&reg_requests_lock);
+	if (!list_empty(&reg_requests_list))
+		need_more_processing = true;
+	spin_unlock(&reg_requests_lock);
+
+	if (need_more_processing)
+		schedule_work(&reg_work);
+}
+
 /**
  * __regulatory_hint - hint to the wireless core a regulatory domain
  * @wiphy: if the hint comes from country information from an AP, this
@@ -1392,8 +1412,10 @@ new_request:
 		 * have applied the requested regulatory domain before we just
 		 * inform userspace we have processed the request
 		 */
-		if (r == -EALREADY)
+		if (r == -EALREADY) {
 			nl80211_send_reg_change_event(last_request);
+			reg_set_request_processed();
+		}
 		return r;
 	}
 
@@ -1409,16 +1431,13 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 
 	BUG_ON(!reg_request->alpha2);
 
-	mutex_lock(&cfg80211_mutex);
-	mutex_lock(&reg_mutex);
-
 	if (wiphy_idx_valid(reg_request->wiphy_idx))
 		wiphy = wiphy_idx_to_wiphy(reg_request->wiphy_idx);
 
 	if (reg_request->initiator == NL80211_REGDOM_SET_BY_DRIVER &&
 	    !wiphy) {
 		kfree(reg_request);
-		goto out;
+		return;
 	}
 
 	r = __regulatory_hint(wiphy, reg_request);
@@ -1426,28 +1445,46 @@ static void reg_process_hint(struct regulatory_request *reg_request)
 	if (r == -EALREADY && wiphy &&
 	    wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY)
 		wiphy_update_regulatory(wiphy, initiator);
-out:
-	mutex_unlock(&reg_mutex);
-	mutex_unlock(&cfg80211_mutex);
 }
 
-/* Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_* */
+/*
+ * Processes regulatory hints, this is all the NL80211_REGDOM_SET_BY_*
+ * Regulatory hints come on a first come first serve basis and we
+ * must process each one atomically.
+ */
 static void reg_process_pending_hints(void)
-	{
+{
 	struct regulatory_request *reg_request;
 
+	mutex_lock(&cfg80211_mutex);
+	mutex_lock(&reg_mutex);
+
+	/* When last_request->processed becomes true this will be rescheduled */
+	if (last_request && !last_request->processed) {
+		REG_DBG_PRINT("Pending regulatory request, waiting "
+			      "for it to be processed...");
+		goto out;
+	}
+
 	spin_lock(&reg_requests_lock);
-	while (!list_empty(&reg_requests_list)) {
-		reg_request = list_first_entry(&reg_requests_list,
-					       struct regulatory_request,
-					       list);
-		list_del_init(&reg_request->list);
 
+	if (list_empty(&reg_requests_list)) {
 		spin_unlock(&reg_requests_lock);
-		reg_process_hint(reg_request);
-		spin_lock(&reg_requests_lock);
+		goto out;
 	}
+
+	reg_request = list_first_entry(&reg_requests_list,
+				       struct regulatory_request,
+				       list);
+	list_del_init(&reg_request->list);
+
 	spin_unlock(&reg_requests_lock);
+
+	reg_process_hint(reg_request);
+
+out:
+	mutex_unlock(&reg_mutex);
+	mutex_unlock(&cfg80211_mutex);
 }
 
 /* Processes beacon hints -- this has nothing to do with country IEs */
@@ -1494,8 +1531,6 @@ static void reg_todo(struct work_struct *work)
 	reg_process_pending_beacon_hints();
 }
 
-static DECLARE_WORK(reg_work, reg_todo);
-
 static void queue_regulatory_request(struct regulatory_request *request)
 {
 	if (isalpha(request->alpha2[0]))
@@ -1530,12 +1565,7 @@ static int regulatory_hint_core(const char *alpha2)
 	request->alpha2[1] = alpha2[1];
 	request->initiator = NL80211_REGDOM_SET_BY_CORE;
 
-	/*
-	 * This ensures last_request is populated once modules
-	 * come swinging in and calling regulatory hints and
-	 * wiphy_apply_custom_regulatory().
-	 */
-	reg_process_hint(request);
+	queue_regulatory_request(request);
 
 	return 0;
 }
@@ -1823,8 +1853,7 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
 	const struct ieee80211_freq_range *freq_range = NULL;
 	const struct ieee80211_power_rule *power_rule = NULL;
 
-	printk(KERN_INFO "    (start_freq - end_freq @ bandwidth), "
-		"(max_antenna_gain, max_eirp)\n");
+	pr_info("    (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)\n");
 
 	for (i = 0; i < rd->n_reg_rules; i++) {
 		reg_rule = &rd->reg_rules[i];
@@ -1836,16 +1865,14 @@ static void print_rd_rules(const struct ieee80211_regdomain *rd)
 		 * in certain regions
 		 */
 		if (power_rule->max_antenna_gain)
-			printk(KERN_INFO "    (%d KHz - %d KHz @ %d KHz), "
-				"(%d mBi, %d mBm)\n",
+			pr_info("    (%d KHz - %d KHz @ %d KHz), (%d mBi, %d mBm)\n",
 				freq_range->start_freq_khz,
 				freq_range->end_freq_khz,
 				freq_range->max_bandwidth_khz,
 				power_rule->max_antenna_gain,
 				power_rule->max_eirp);
 		else
-			printk(KERN_INFO "    (%d KHz - %d KHz @ %d KHz), "
-				"(N/A, %d mBm)\n",
+			pr_info("    (%d KHz - %d KHz @ %d KHz), (N/A, %d mBm)\n",
 				freq_range->start_freq_khz,
 				freq_range->end_freq_khz,
 				freq_range->max_bandwidth_khz,
@@ -1864,27 +1891,20 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 			rdev = cfg80211_rdev_by_wiphy_idx(
 				last_request->wiphy_idx);
 			if (rdev) {
-				printk(KERN_INFO "cfg80211: Current regulatory "
-					"domain updated by AP to: %c%c\n",
+				pr_info("Current regulatory domain updated by AP to: %c%c\n",
 					rdev->country_ie_alpha2[0],
 					rdev->country_ie_alpha2[1]);
 			} else
-				printk(KERN_INFO "cfg80211: Current regulatory "
-					"domain intersected:\n");
+				pr_info("Current regulatory domain intersected:\n");
 		} else
-			printk(KERN_INFO "cfg80211: Current regulatory "
-				"domain intersected:\n");
+			pr_info("Current regulatory domain intersected:\n");
 	} else if (is_world_regdom(rd->alpha2))
-		printk(KERN_INFO "cfg80211: World regulatory "
-			"domain updated:\n");
+		pr_info("World regulatory domain updated:\n");
 	else {
 		if (is_unknown_alpha2(rd->alpha2))
-			printk(KERN_INFO "cfg80211: Regulatory domain "
-				"changed to driver built-in settings "
-				"(unknown country)\n");
+			pr_info("Regulatory domain changed to driver built-in settings (unknown country)\n");
 		else
-			printk(KERN_INFO "cfg80211: Regulatory domain "
-				"changed to country: %c%c\n",
+			pr_info("Regulatory domain changed to country: %c%c\n",
 				rd->alpha2[0], rd->alpha2[1]);
 	}
 	print_rd_rules(rd);
@@ -1892,8 +1912,7 @@ static void print_regdomain(const struct ieee80211_regdomain *rd)
 
 static void print_regdomain_info(const struct ieee80211_regdomain *rd)
 {
-	printk(KERN_INFO "cfg80211: Regulatory domain: %c%c\n",
-		rd->alpha2[0], rd->alpha2[1]);
+	pr_info("Regulatory domain: %c%c\n", rd->alpha2[0], rd->alpha2[1]);
 	print_rd_rules(rd);
 }
 
@@ -1944,8 +1963,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		return -EINVAL;
 
 	if (!is_valid_rd(rd)) {
-		printk(KERN_ERR "cfg80211: Invalid "
-			"regulatory domain detected:\n");
+		pr_err("Invalid regulatory domain detected:\n");
 		print_regdomain_info(rd);
 		return -EINVAL;
 	}
@@ -2061,6 +2079,8 @@ int set_regdom(const struct ieee80211_regdomain *rd)
 
 	nl80211_send_reg_change_event(last_request);
 
+	reg_set_request_processed();
+
 	mutex_unlock(&reg_mutex);
 
 	return r;
@@ -2117,8 +2137,7 @@ int __init regulatory_init(void)
 		 * early boot for call_usermodehelper(). For now treat these
 		 * errors as non-fatal.
 		 */
-		printk(KERN_ERR "cfg80211: kobject_uevent_env() was unable "
-			"to call CRDA during init");
+		pr_err("kobject_uevent_env() was unable to call CRDA during init\n");
 #ifdef CONFIG_CFG80211_REG_DEBUG
 		/* We want to find out exactly why when debugging */
 		WARN_ON(err);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 76120ae..fee020b 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -502,7 +502,7 @@ int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
 			skb_orphan(skb);
 
 		if (pskb_expand_head(skb, head_need, 0, GFP_ATOMIC)) {
-			printk(KERN_ERR "failed to reallocate Tx buffer\n");
+			pr_err("failed to reallocate Tx buffer\n");
 			return -ENOMEM;
 		}
 		skb->truesize += head_need;
@@ -685,20 +685,17 @@ void cfg80211_upload_connect_keys(struct wireless_dev *wdev)
 			continue;
 		if (rdev->ops->add_key(wdev->wiphy, dev, i, false, NULL,
 					&wdev->connect_keys->params[i])) {
-			printk(KERN_ERR "%s: failed to set key %d\n",
-				dev->name, i);
+			netdev_err(dev, "failed to set key %d\n", i);
 			continue;
 		}
 		if (wdev->connect_keys->def == i)
 			if (rdev->ops->set_default_key(wdev->wiphy, dev, i)) {
-				printk(KERN_ERR "%s: failed to set defkey %d\n",
-					dev->name, i);
+				netdev_err(dev, "failed to set defkey %d\n", i);
 				continue;
 			}
 		if (wdev->connect_keys->defmgmt == i)
 			if (rdev->ops->set_default_mgmt_key(wdev->wiphy, dev, i))
-				printk(KERN_ERR "%s: failed to set mgtdef %d\n",
-					dev->name, i);
+				netdev_err(dev, "failed to set mgtdef %d\n", i);
 	}
 
 	kfree(wdev->connect_keys);
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index dc675a3..fdbc23c 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -467,8 +467,8 @@ void wireless_send_event(struct net_device *	dev,
 		 * The best the driver could do is to log an error message.
 		 * We will do it ourselves instead...
 		 */
-		printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
-		       dev->name, cmd);
+		netdev_err(dev, "(WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
+			   cmd);
 		return;
 	}
 
@@ -476,11 +476,13 @@ void wireless_send_event(struct net_device *	dev,
 	if (descr->header_type == IW_HEADER_TYPE_POINT) {
 		/* Check if number of token fits within bounds */
 		if (wrqu->data.length > descr->max_tokens) {
-			printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
+			netdev_err(dev, "(WE) : Wireless Event too big (%d)\n",
+				   wrqu->data.length);
 			return;
 		}
 		if (wrqu->data.length < descr->min_tokens) {
-			printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
+			netdev_err(dev, "(WE) : Wireless Event too small (%d)\n",
+				   wrqu->data.length);
 			return;
 		}
 		/* Calculate extra_len - extra is NULL for restricted events */