17 files changed, 298 insertions, 197 deletions

diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 97f33588b65..f9ec0d97e34 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -176,7 +176,8 @@ static void ieee80211_send_addba_resp(struct ieee80211_sub_if_data *sdata, u8 *d
 	memcpy(mgmt->da, da, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
-	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+	    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
 		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
index 2ac033989e0..fefc7e50675 100644
--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -77,7 +77,8 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
 	memcpy(mgmt->da, da, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
-	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+	    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
 		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
@@ -371,13 +372,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid,
 	       pubsta->addr, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
-	/*
-	 * The aggregation code is not prepared to handle
-	 * anything but STA/AP due to the BSSID handling.
-	 * IBSS could work in the code but isn't supported
-	 * by drivers or the standard.
-	 */
 	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
 	    sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 	    sdata->vif.type != NL80211_IFTYPE_AP)
 		return -EINVAL;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d06c65fa552..65b72ae2b4e 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1394,7 +1394,7 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
 	    (old_oper_type != local->_oper_channel_type))
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 
-	if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
+	if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR &&
 	    old_vif_oper_type != sdata->vif.bss_conf.channel_type)
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
 
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index f80a35c0d00..988c7ec0898 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -195,7 +195,8 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 	memcpy(mgmt->da, da, ETH_ALEN);
 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	if (sdata->vif.type == NL80211_IFTYPE_AP ||
-	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+	    sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
 		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
 	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index ea10a51babd..e2447096c94 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1334,6 +1334,12 @@ void ieee80211_recalc_smps(struct ieee80211_local *local);
 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
 			  const u8 *ids, int n_ids, size_t offset);
 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
+u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband,
+			      u16 cap);
+u8 *ieee80211_ie_build_ht_info(u8 *pos,
+				struct ieee80211_sta_ht_cap *ht_cap,
+				struct ieee80211_channel *channel,
+				enum nl80211_channel_type channel_type);
 
 /* internal work items */
 void ieee80211_work_init(struct ieee80211_local *local);
@@ -1362,6 +1368,8 @@ ieee80211_get_channel_mode(struct ieee80211_local *local,
 bool ieee80211_set_channel_type(struct ieee80211_local *local,
 				struct ieee80211_sub_if_data *sdata,
 				enum nl80211_channel_type chantype);
+enum nl80211_channel_type
+ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 30d73552e9a..33a974663f7 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -286,6 +286,13 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 			netif_carrier_off(dev);
 		else
 			netif_carrier_on(dev);
+
+		/*
+		 * set default queue parameters so drivers don't
+		 * need to initialise the hardware if the hardware
+		 * doesn't start up with sane defaults
+		 */
+		ieee80211_set_wmm_default(sdata);
 	}
 
 	set_bit(SDATA_STATE_RUNNING, &sdata->state);
@@ -329,15 +336,8 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 	if (coming_up)
 		local->open_count++;
 
-	if (hw_reconf_flags) {
+	if (hw_reconf_flags)
 		ieee80211_hw_config(local, hw_reconf_flags);
-		/*
-		 * set default queue parameters so drivers don't
-		 * need to initialise the hardware if the hardware
-		 * doesn't start up with sane defaults
-		 */
-		ieee80211_set_wmm_default(sdata);
-	}
 
 	ieee80211_recalc_ps(local, -1);
 
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 756b157c2ed..17a5220ed45 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -133,9 +133,13 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 		key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
 
 		if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
-		      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)))
+		      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+		      (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
 			sdata->crypto_tx_tailroom_needed_cnt--;
 
+		WARN_ON((key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) &&
+			(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV));
+
 		return 0;
 	}
 
@@ -178,7 +182,8 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 	sdata = key->sdata;
 
 	if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
-	      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)))
+	      (key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
+	      (key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
 		increment_tailroom_need_count(sdata);
 
 	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index a7078fdba8c..b3a125f6034 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -76,6 +76,7 @@ static void ieee80211_mesh_housekeeping_timer(unsigned long data)
 bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	struct ieee80211_local *local = sdata->local;
 
 	/*
 	 * As support for each feature is added, check for matching
@@ -87,15 +88,23 @@ bool mesh_matches_local(struct ieee802_11_elems *ie, struct ieee80211_sub_if_dat
 	 *   - MDA enabled
 	 * - Power management control on fc
 	 */
-	if (ifmsh->mesh_id_len == ie->mesh_id_len &&
-		memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
-		(ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) &&
-		(ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) &&
-		(ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) &&
-		(ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) &&
-		(ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth))
-		return true;
-
+	if (!(ifmsh->mesh_id_len == ie->mesh_id_len &&
+	     memcmp(ifmsh->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
+	     (ifmsh->mesh_pp_id == ie->mesh_config->meshconf_psel) &&
+	     (ifmsh->mesh_pm_id == ie->mesh_config->meshconf_pmetric) &&
+	     (ifmsh->mesh_cc_id == ie->mesh_config->meshconf_congest) &&
+	     (ifmsh->mesh_sp_id == ie->mesh_config->meshconf_synch) &&
+	     (ifmsh->mesh_auth_id == ie->mesh_config->meshconf_auth)))
+		goto mismatch;
+
+	/* disallow peering with mismatched channel types for now */
+	if (ie->ht_info_elem &&
+	    (local->_oper_channel_type !=
+	     ieee80211_ht_info_to_channel_type(ie->ht_info_elem)))
+		goto mismatch;
+
+	return true;
+mismatch:
 	return false;
 }
 
@@ -341,6 +350,49 @@ int mesh_add_ds_params_ie(struct sk_buff *skb,
 	return 0;
 }
 
+int mesh_add_ht_cap_ie(struct sk_buff *skb,
+		       struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
+	u8 *pos;
+
+	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	if (!sband->ht_cap.ht_supported ||
+	    local->_oper_channel_type == NL80211_CHAN_NO_HT)
+		return 0;
+
+	if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
+		return -ENOMEM;
+
+	pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_cap));
+	ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
+
+	return 0;
+}
+
+int mesh_add_ht_info_ie(struct sk_buff *skb,
+			struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_channel *channel = local->oper_channel;
+	enum nl80211_channel_type channel_type = local->_oper_channel_type;
+	struct ieee80211_supported_band *sband =
+				local->hw.wiphy->bands[channel->band];
+	struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
+	u8 *pos;
+
+	if (!ht_cap->ht_supported || channel_type == NL80211_CHAN_NO_HT)
+		return 0;
+
+	if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_info))
+		return -ENOMEM;
+
+	pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_info));
+	ieee80211_ie_build_ht_info(pos, ht_cap, channel, channel_type);
+
+	return 0;
+}
 static void ieee80211_mesh_path_timer(unsigned long data)
 {
 	struct ieee80211_sub_if_data *sdata =
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 8c00e2d1d63..0f2c4e69e21 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -212,6 +212,10 @@ int mesh_add_vendor_ies(struct sk_buff *skb,
 			struct ieee80211_sub_if_data *sdata);
 int mesh_add_ds_params_ie(struct sk_buff *skb,
 			  struct ieee80211_sub_if_data *sdata);
+int mesh_add_ht_cap_ie(struct sk_buff *skb,
+		       struct ieee80211_sub_if_data *sdata);
+int mesh_add_ht_info_ie(struct sk_buff *skb,
+			struct ieee80211_sub_if_data *sdata);
 void mesh_rmc_free(struct ieee80211_sub_if_data *sdata);
 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
 void ieee80211s_init(void);
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 174040a4288..9a1f8bbc49b 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -113,20 +113,20 @@ static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
 		struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos;
-	int ie_len;
+	u8 *pos, ie_len;
+	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.mesh_action) +
+		      sizeof(mgmt->u.action.u.mesh_action);
 
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    hdr_len +
+			    2 + 37); /* max HWMP IE */
 	if (!skb)
 		return -1;
 	skb_reserve(skb, local->hw.extra_tx_headroom);
-	/* 25 is the size of the common mgmt part (24) plus the size of the
-	 * common action part (1)
-	 */
-	mgmt = (struct ieee80211_mgmt *)
-		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
-	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len);
+	memset(mgmt, 0, hdr_len);
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 
@@ -240,20 +240,20 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
 		       struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos;
-	int ie_len;
+	u8 *pos, ie_len;
+	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.mesh_action) +
+		      sizeof(mgmt->u.action.u.mesh_action);
 
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    hdr_len +
+			    2 + 15 /* PERR IE */);
 	if (!skb)
 		return -1;
 	skb_reserve(skb, local->tx_headroom + local->hw.extra_tx_headroom);
-	/* 25 is the size of the common mgmt part (24) plus the size of the
-	 * common action part (1)
-	 */
-	mgmt = (struct ieee80211_mgmt *)
-		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
-	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len);
+	memset(mgmt, 0, hdr_len);
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 7e57f5d07f6..0140e88a822 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -80,11 +80,15 @@ static inline void mesh_plink_fsm_restart(struct sta_info *sta)
  *       on it in the lifecycle management section!
  */
 static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
-					 u8 *hw_addr, u32 rates)
+					 u8 *hw_addr, u32 rates,
+					 struct ieee802_11_elems *elems)
 {
 	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_supported_band *sband;
 	struct sta_info *sta;
 
+	sband = local->hw.wiphy->bands[local->oper_channel->band];
+
 	if (local->num_sta >= MESH_MAX_PLINKS)
 		return NULL;
 
@@ -96,6 +100,9 @@ static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
 	set_sta_flag(sta, WLAN_STA_AUTHORIZED);
 	set_sta_flag(sta, WLAN_STA_WME);
 	sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
+	if (elems->ht_cap_elem)
+		ieee80211_ht_cap_ie_to_sta_ht_cap(sband, elems->ht_cap_elem,
+						  &sta->sta.ht_cap);
 	rate_control_rate_init(sta);
 
 	return sta;
@@ -153,23 +160,31 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 		enum ieee80211_self_protected_actioncode action,
 		u8 *da, __le16 llid, __le16 plid, __le16 reason) {
 	struct ieee80211_local *local = sdata->local;
-	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400 +
-			sdata->u.mesh.ie_len);
+	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	bool include_plid = false;
-	int ie_len = 4;
 	u16 peering_proto = 0;
-	u8 *pos;
-
+	u8 *pos, ie_len = 4;
+	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.self_prot) +
+		      sizeof(mgmt->u.action.u.self_prot);
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    hdr_len +
+			    2 + /* capability info */
+			    2 + /* AID */
+			    2 + 8 + /* supported rates */
+			    2 + (IEEE80211_MAX_SUPP_RATES - 8) +
+			    2 + sdata->u.mesh.mesh_id_len +
+			    2 + sizeof(struct ieee80211_meshconf_ie) +
+			    2 + sizeof(struct ieee80211_ht_cap) +
+			    2 + sizeof(struct ieee80211_ht_info) +
+			    2 + 8 + /* peering IE */
+			    sdata->u.mesh.ie_len);
 	if (!skb)
 		return -1;
 	skb_reserve(skb, local->hw.extra_tx_headroom);
-	/* 25 is the size of the common mgmt part (24) plus the size of the
-	 * common action part (1)
-	 */
-	mgmt = (struct ieee80211_mgmt *)
-		skb_put(skb, 25 + sizeof(mgmt->u.action.u.self_prot));
-	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.self_prot));
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len);
+	memset(mgmt, 0, hdr_len);
 	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
 					  IEEE80211_STYPE_ACTION);
 	memcpy(mgmt->da, da, ETH_ALEN);
@@ -235,6 +250,13 @@ static int mesh_plink_frame_tx(struct ieee80211_sub_if_data *sdata,
 		memcpy(pos, &reason, 2);
 		pos += 2;
 	}
+
+	if (action != WLAN_SP_MESH_PEERING_CLOSE) {
+		if (mesh_add_ht_cap_ie(skb, sdata) ||
+		    mesh_add_ht_info_ie(skb, sdata))
+			return -1;
+	}
+
 	if (mesh_add_vendor_ies(skb, sdata))
 		return -1;
 
@@ -261,7 +283,7 @@ void mesh_neighbour_update(u8 *hw_addr, u32 rates,
 					elems->ie_start, elems->total_len,
 					GFP_KERNEL);
 		else
-			sta = mesh_plink_alloc(sdata, hw_addr, rates);
+			sta = mesh_plink_alloc(sdata, hw_addr, rates, elems);
 		if (!sta)
 			return;
 		if (sta_info_insert_rcu(sta)) {
@@ -552,7 +574,7 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, struct ieee80211_m
 		}
 
 		rates = ieee80211_sta_get_rates(local, &elems, rx_status->band);
-		sta = mesh_plink_alloc(sdata, mgmt->sa, rates);
+		sta = mesh_plink_alloc(sdata, mgmt->sa, rates, &elems);
 		if (!sta) {
 			mpl_dbg("Mesh plink error: plink table full\n");
 			return;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index b867bd55de7..3173dcfc213 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2203,13 +2203,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 
 	switch (mgmt->u.action.category) {
 	case WLAN_CATEGORY_BACK:
-		/*
-		 * The aggregation code is not prepared to handle
-		 * anything but STA/AP due to the BSSID handling;
-		 * IBSS could work in the code but isn't supported
-		 * by drivers or the standard.
-		 */
 		if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+		    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
 		    sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 		    sdata->vif.type != NL80211_IFTYPE_AP)
 			break;
@@ -2489,6 +2484,10 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
 		goto out_free_skb;
 	rx->flags |= IEEE80211_RX_CMNTR;
 
+	/* If there are no cooked monitor interfaces, just free the SKB */
+	if (!local->cooked_mntrs)
+		goto out_free_skb;
+
 	if (skb_headroom(skb) < sizeof(*rthdr) &&
 	    pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC))
 		goto out_free_skb;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 48bbb96d8ed..a543d26058d 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2278,22 +2278,31 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		struct ieee80211_mgmt *mgmt;
 		u8 *pos;
+		int hdr_len = offsetof(struct ieee80211_mgmt, u.beacon) +
+			      sizeof(mgmt->u.beacon);
 
 #ifdef CONFIG_MAC80211_MESH
 		if (!sdata->u.mesh.mesh_id_len)
 			goto out;
 #endif
 
-		/* headroom, head length, tail length and maximum TIM length */
-		skb = dev_alloc_skb(local->tx_headroom + 400 +
-				sdata->u.mesh.ie_len);
+		skb = dev_alloc_skb(local->tx_headroom +
+				    hdr_len +
+				    2 + /* NULL SSID */
+				    2 + 8 + /* supported rates */
+				    2 + 3 + /* DS params */
+				    2 + (IEEE80211_MAX_SUPP_RATES - 8) +
+				    2 + sizeof(struct ieee80211_ht_cap) +
+				    2 + sizeof(struct ieee80211_ht_info) +
+				    2 + sdata->u.mesh.mesh_id_len +
+				    2 + sizeof(struct ieee80211_meshconf_ie) +
+				    sdata->u.mesh.ie_len);
 		if (!skb)
 			goto out;
 
 		skb_reserve(skb, local->hw.extra_tx_headroom);
-		mgmt = (struct ieee80211_mgmt *)
-			skb_put(skb, 24 + sizeof(mgmt->u.beacon));
-		memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+		mgmt = (struct ieee80211_mgmt *) skb_put(skb, hdr_len);
+		memset(mgmt, 0, hdr_len);
 		mgmt->frame_control =
 		    cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
 		memset(mgmt->da, 0xff, ETH_ALEN);
@@ -2312,6 +2321,8 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		    mesh_add_ds_params_ie(skb, sdata) ||
 		    ieee80211_add_ext_srates_ie(&sdata->vif, skb) ||
 		    mesh_add_rsn_ie(skb, sdata) ||
+		    mesh_add_ht_cap_ie(skb, sdata) ||
+		    mesh_add_ht_info_ie(skb, sdata) ||
 		    mesh_add_meshid_ie(skb, sdata) ||
 		    mesh_add_meshconf_ie(skb, sdata) ||
 		    mesh_add_vendor_ies(skb, sdata)) {
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 7439d26bf5f..72b3a2ec0d2 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -811,23 +811,8 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 		offset = noffset;
 	}
 
-	if (sband->ht_cap.ht_supported) {
-		u16 cap = sband->ht_cap.cap;
-		__le16 tmp;
-
-		*pos++ = WLAN_EID_HT_CAPABILITY;
-		*pos++ = sizeof(struct ieee80211_ht_cap);
-		memset(pos, 0, sizeof(struct ieee80211_ht_cap));
-		tmp = cpu_to_le16(cap);
-		memcpy(pos, &tmp, sizeof(u16));
-		pos += sizeof(u16);
-		*pos++ = sband->ht_cap.ampdu_factor |
-			 (sband->ht_cap.ampdu_density <<
-				IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
-		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 (sband->ht_cap.ht_supported)
+		pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
 
 	/*
 	 * If adding more here, adjust code in main.c
@@ -1362,6 +1347,103 @@ void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif)
 }
 EXPORT_SYMBOL(ieee80211_disable_rssi_reports);
 
+u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband,
+			      u16 cap)
+{
+	__le16 tmp;
+
+	*pos++ = WLAN_EID_HT_CAPABILITY;
+	*pos++ = sizeof(struct ieee80211_ht_cap);
+	memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+
+	/* capability flags */
+	tmp = cpu_to_le16(cap);
+	memcpy(pos, &tmp, sizeof(u16));
+	pos += sizeof(u16);
+
+	/* AMPDU parameters */
+	*pos++ = sband->ht_cap.ampdu_factor |
+		 (sband->ht_cap.ampdu_density <<
+			IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
+
+	/* MCS set */
+	memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
+	pos += sizeof(sband->ht_cap.mcs);
+
+	/* extended capabilities */
+	pos += sizeof(__le16);
+
+	/* BF capabilities */
+	pos += sizeof(__le32);
+
+	/* antenna selection */
+	pos += sizeof(u8);
+
+	return pos;
+}
+
+u8 *ieee80211_ie_build_ht_info(u8 *pos,
+			       struct ieee80211_sta_ht_cap *ht_cap,
+			       struct ieee80211_channel *channel,
+			       enum nl80211_channel_type channel_type)
+{
+	struct ieee80211_ht_info *ht_info;
+	/* Build HT Information */
+	*pos++ = WLAN_EID_HT_INFORMATION;
+	*pos++ = sizeof(struct ieee80211_ht_info);
+	ht_info = (struct ieee80211_ht_info *)pos;
+	ht_info->control_chan =
+			ieee80211_frequency_to_channel(channel->center_freq);
+	switch (channel_type) {
+	case NL80211_CHAN_HT40MINUS:
+		ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+		break;
+	case NL80211_CHAN_HT40PLUS:
+		ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+		break;
+	case NL80211_CHAN_HT20:
+	default:
+		ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+		break;
+	}
+	if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+		ht_info->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
+	ht_info->operation_mode = 0x0000;
+	ht_info->stbc_param = 0x0000;
+
+	/* It seems that Basic MCS set and Supported MCS set
+	   are identical for the first 10 bytes */
+	memset(&ht_info->basic_set, 0, 16);
+	memcpy(&ht_info->basic_set, &ht_cap->mcs, 10);
+
+	return pos + sizeof(struct ieee80211_ht_info);
+}
+
+enum nl80211_channel_type
+ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info)
+{
+	enum nl80211_channel_type channel_type;
+
+	if (!ht_info)
+		return NL80211_CHAN_NO_HT;
+
+	switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
+		channel_type = NL80211_CHAN_HT20;
+		break;
+	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;
+	default:
+		channel_type = NL80211_CHAN_NO_HT;
+	}
+
+	return channel_type;
+}
+
 int ieee80211_add_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index 6c53b6d1002..30da4e3f19f 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -103,7 +103,6 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie,
 	u8 *pos;
 	u32 flags = channel->flags;
 	u16 cap = sband->ht_cap.cap;
-	__le16 tmp;
 
 	if (!sband->ht_cap.ht_supported)
 		return;
@@ -154,34 +153,8 @@ static void ieee80211_add_ht_ie(struct sk_buff *skb, const u8 *ht_info_ie,
 	}
 
 	/* reserve and fill IE */
-
 	pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
-	*pos++ = WLAN_EID_HT_CAPABILITY;
-	*pos++ = sizeof(struct ieee80211_ht_cap);
-	memset(pos, 0, sizeof(struct ieee80211_ht_cap));
-
-	/* capability flags */
-	tmp = cpu_to_le16(cap);
-	memcpy(pos, &tmp, sizeof(u16));
-	pos += sizeof(u16);
-
-	/* AMPDU parameters */
-	*pos++ = sband->ht_cap.ampdu_factor |
-		 (sband->ht_cap.ampdu_density <<
-			IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
-
-	/* MCS set */
-	memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
-	pos += sizeof(sband->ht_cap.mcs);
-
-	/* extended capabilities */
-	pos += sizeof(__le16);
-
-	/* BF capabilities */
-	pos += sizeof(__le32);
-
-	/* antenna selection */
-	pos += sizeof(u8);
+	ieee80211_ie_build_ht_cap(pos, sband, cap);
 }
 
 static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index f614ce7bb6e..13efab5bf12 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -390,7 +390,8 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	u8 scratch[6 * AES_BLOCK_SIZE];
 
 	if (info->control.hw_key &&
-	    !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
+	    !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
+	    !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) {
 		/*
 		 * hwaccel has no need for preallocated room for CCMP
 		 * header or MIC fields
@@ -412,6 +413,11 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 
 	pos = skb_push(skb, CCMP_HDR_LEN);
 	memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
+
+	/* the HW only needs room for the IV, but not the actual IV */
+	if (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)
+		return 0;
+
 	hdr = (struct ieee80211_hdr *) pos;
 	pos += hdrlen;
 
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b3a476fe827..e97827ba8a5 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6639,10 +6639,7 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
 	if (wiphy_idx_valid(request->wiphy_idx))
 		NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	rcu_read_lock();
 	genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
@@ -6678,10 +6675,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
 	NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -6762,10 +6756,7 @@ static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
 	NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
 	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -6821,10 +6812,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
 	if (resp_ie)
 		NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -6862,10 +6850,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
 	if (resp_ie)
 		NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -6903,10 +6888,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
 	if (ie)
 		NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, GFP_KERNEL);
@@ -6939,10 +6921,7 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
 	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -6977,10 +6956,7 @@ void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
 	if (ie_len && ie)
 		NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7019,10 +6995,7 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 	if (tsc)
 		NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7073,10 +7046,7 @@ void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
 		goto nla_put_failure;
 	nla_nest_end(msg, nl_freq);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	rcu_read_lock();
 	genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
@@ -7119,10 +7089,7 @@ static void nl80211_send_remain_on_chan_event(
 	if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
 		NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7193,10 +7160,7 @@ void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
 	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7213,7 +7177,6 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 	void *hdr;
-	int err;
 
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
 	if (!msg)
@@ -7230,16 +7193,9 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
 	NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
 
-	err = genlmsg_end(msg, hdr);
-	if (err < 0) {
-		nlmsg_free(msg);
-		return err;
-	}
+	genlmsg_end(msg, hdr);
 
-	err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
-	if (err < 0)
-		return err;
-	return 0;
+	return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
 
  nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -7272,10 +7228,7 @@ void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
 	if (ack)
 		NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
 	return;
@@ -7317,10 +7270,7 @@ nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
 
 	nla_nest_end(msg, pinfoattr);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7362,10 +7312,7 @@ void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
 
 	nla_nest_end(msg, rekey_attr);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7408,10 +7355,7 @@ void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 
 	nla_nest_end(msg, attr);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
@@ -7453,10 +7397,7 @@ nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
 
 	nla_nest_end(msg, pinfoattr);
 
-	if (genlmsg_end(msg, hdr) < 0) {
-		nlmsg_free(msg);
-		return;
-	}
+	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);