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

29 files changed, 871 insertions, 437 deletions

diff --git a/net/mac80211/aes_cmac.c b/net/mac80211/aes_cmac.c
index 8dfd70d8fcfb..a04752e91023 100644
--- a/net/mac80211/aes_cmac.c
+++ b/net/mac80211/aes_cmac.c
@@ -38,14 +38,10 @@ static void gf_mulx(u8 *pad)
 static void aes_128_cmac_vector(struct crypto_cipher *tfm, size_t num_elem,
 				const u8 *addr[], const size_t *len, u8 *mac)
 {
-	u8 scratch[2 * AES_BLOCK_SIZE];
-	u8 *cbc, *pad;
+	u8 cbc[AES_BLOCK_SIZE], pad[AES_BLOCK_SIZE];
 	const u8 *pos, *end;
 	size_t i, e, left, total_len;
 
-	cbc = scratch;
-	pad = scratch + AES_BLOCK_SIZE;
-
 	memset(cbc, 0, AES_BLOCK_SIZE);
 
 	total_len = 0;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d41974aacf51..929f897a8ded 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -102,6 +102,18 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 	return 0;
 }
 
+static int ieee80211_start_p2p_device(struct wiphy *wiphy,
+				      struct wireless_dev *wdev)
+{
+	return ieee80211_do_open(wdev, true);
+}
+
+static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
+				      struct wireless_dev *wdev)
+{
+	ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
+}
+
 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 				  struct net_device *dev,
 				  u16 noack_map)
@@ -330,7 +342,7 @@ static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, in
 	if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
 		struct ieee80211_supported_band *sband;
 		sband = sta->local->hw.wiphy->bands[
-				sta->local->hw.conf.channel->band];
+				sta->local->oper_channel->band];
 		rate->legacy = sband->bitrates[idx].bitrate;
 	} else
 		rate->mcs = idx;
@@ -725,25 +737,23 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 				    const u8 *resp, size_t resp_len)
 {
-	struct sk_buff *new, *old;
+	struct probe_resp *new, *old;
 
 	if (!resp || !resp_len)
 		return 1;
 
 	old = rtnl_dereference(sdata->u.ap.probe_resp);
 
-	new = dev_alloc_skb(resp_len);
+	new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
-	memcpy(skb_put(new, resp_len), resp, resp_len);
+	new->len = resp_len;
+	memcpy(new->data, resp, resp_len);
 
 	rcu_assign_pointer(sdata->u.ap.probe_resp, new);
-	if (old) {
-		/* TODO: use call_rcu() */
-		synchronize_rcu();
-		dev_kfree_skb(old);
-	}
+	if (old)
+		kfree_rcu(old, rcu_head);
 
 	return 0;
 }
@@ -950,7 +960,7 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
 	/* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 	 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 
-	memset(msg->da, 0xff, ETH_ALEN);
+	eth_broadcast_addr(msg->da);
 	memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 	msg->len = htons(6);
 	msg->dsap = 0;
@@ -1285,9 +1295,10 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 	mutex_unlock(&local->sta_mtx);
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
-	    params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
+	    params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 		ieee80211_recalc_ps(local, -1);
-
+		ieee80211_recalc_ps_vif(sdata);
+	}
 	return 0;
 }
 
@@ -1661,7 +1672,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 	}
 
 	if (!sdata->vif.bss_conf.use_short_slot &&
-	    sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
+	    sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
 		sdata->vif.bss_conf.use_short_slot = true;
 		changed |= BSS_CHANGED_ERP_SLOT;
 	}
@@ -1775,6 +1786,7 @@ static int ieee80211_scan(struct wiphy *wiphy,
 	case NL80211_IFTYPE_ADHOC:
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_P2P_CLIENT:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
 	case NL80211_IFTYPE_P2P_GO:
 		if (sdata->local->ops->hw_scan)
@@ -1927,7 +1939,7 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
 				  enum nl80211_tx_power_setting type, int mbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_channel *chan = local->hw.conf.channel;
+	struct ieee80211_channel *chan = local->oper_channel;
 	u32 changes = 0;
 
 	switch (type) {
@@ -2079,6 +2091,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 
 	ieee80211_recalc_ps(local, -1);
+	ieee80211_recalc_ps_vif(sdata);
 
 	return 0;
 }
@@ -2461,6 +2474,9 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		if (!sdata->u.mgd.associated)
 			need_offchan = true;
 		break;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		need_offchan = true;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -2653,6 +2669,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 			       u16 status_code, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_tdls_data *tf;
 
 	tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
@@ -2672,8 +2689,10 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 		tf->u.setup_req.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false);
-		ieee80211_add_ext_srates_ie(sdata, skb, false);
+		ieee80211_add_srates_ie(sdata, skb, false,
+					local->oper_channel->band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false,
+					    local->oper_channel->band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	case WLAN_TDLS_SETUP_RESPONSE:
@@ -2686,8 +2705,10 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 		tf->u.setup_resp.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false);
-		ieee80211_add_ext_srates_ie(sdata, skb, false);
+		ieee80211_add_srates_ie(sdata, skb, false,
+					local->oper_channel->band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false,
+					    local->oper_channel->band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	case WLAN_TDLS_SETUP_CONFIRM:
@@ -2725,6 +2746,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
 			   u16 status_code, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_mgmt *mgmt;
 
 	mgmt = (void *)skb_put(skb, 24);
@@ -2747,8 +2769,10 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
 		mgmt->u.action.u.tdls_discover_resp.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false);
-		ieee80211_add_ext_srates_ie(sdata, skb, false);
+		ieee80211_add_srates_ie(sdata, skb, false,
+					local->oper_channel->band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false,
+					    local->oper_channel->band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	default:
@@ -3005,6 +3029,8 @@ struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
 	.change_virtual_intf = ieee80211_change_iface,
+	.start_p2p_device = ieee80211_start_p2p_device,
+	.stop_p2p_device = ieee80211_stop_p2p_device,
 	.add_key = ieee80211_add_key,
 	.del_key = ieee80211_del_key,
 	.get_key = ieee80211_get_key,
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index b8dfb440c8ef..97173f8144d4 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -63,8 +63,6 @@ DEBUGFS_READONLY_FILE(user_power, "%d",
 		      local->user_power_level);
 DEBUGFS_READONLY_FILE(power, "%d",
 		      local->hw.conf.power_level);
-DEBUGFS_READONLY_FILE(frequency, "%d",
-		      local->hw.conf.channel->center_freq);
 DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
 		      local->total_ps_buffered);
 DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
@@ -91,33 +89,6 @@ static const struct file_operations reset_ops = {
 	.llseek = noop_llseek,
 };
 
-static ssize_t channel_type_read(struct file *file, char __user *user_buf,
-		       size_t count, loff_t *ppos)
-{
-	struct ieee80211_local *local = file->private_data;
-	const char *buf;
-
-	switch (local->hw.conf.channel_type) {
-	case NL80211_CHAN_NO_HT:
-		buf = "no ht\n";
-		break;
-	case NL80211_CHAN_HT20:
-		buf = "ht20\n";
-		break;
-	case NL80211_CHAN_HT40MINUS:
-		buf = "ht40-\n";
-		break;
-	case NL80211_CHAN_HT40PLUS:
-		buf = "ht40+\n";
-		break;
-	default:
-		buf = "???";
-		break;
-	}
-
-	return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
-}
-
 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
 			    size_t count, loff_t *ppos)
 {
@@ -205,7 +176,6 @@ static ssize_t queues_read(struct file *file, char __user *user_buf,
 }
 
 DEBUGFS_READONLY_FILE_OPS(hwflags);
-DEBUGFS_READONLY_FILE_OPS(channel_type);
 DEBUGFS_READONLY_FILE_OPS(queues);
 
 /* statistics stuff */
@@ -272,12 +242,10 @@ void debugfs_hw_add(struct ieee80211_local *local)
 
 	local->debugfs.keys = debugfs_create_dir("keys", phyd);
 
-	DEBUGFS_ADD(frequency);
 	DEBUGFS_ADD(total_ps_buffered);
 	DEBUGFS_ADD(wep_iv);
 	DEBUGFS_ADD(queues);
 	DEBUGFS_ADD_MODE(reset, 0200);
-	DEBUGFS_ADD(channel_type);
 	DEBUGFS_ADD(hwflags);
 	DEBUGFS_ADD(user_power);
 	DEBUGFS_ADD(power);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index df9203199102..da9003b20004 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -9,7 +9,7 @@ static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
 {
 	WARN(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER),
 	     "%s:  Failed check-sdata-in-driver check, flags: 0x%x\n",
-	     sdata->dev->name, sdata->flags);
+	     sdata->dev ? sdata->dev->name : sdata->name, sdata->flags);
 }
 
 static inline struct ieee80211_sub_if_data *
@@ -22,9 +22,11 @@ get_bss_sdata(struct ieee80211_sub_if_data *sdata)
 	return sdata;
 }
 
-static inline void drv_tx(struct ieee80211_local *local, struct sk_buff *skb)
+static inline void drv_tx(struct ieee80211_local *local,
+			  struct ieee80211_tx_control *control,
+			  struct sk_buff *skb)
 {
-	local->ops->tx(&local->hw, skb);
+	local->ops->tx(&local->hw, control, skb);
 }
 
 static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata,
@@ -526,6 +528,9 @@ static inline void drv_sta_rc_update(struct ieee80211_local *local,
 	sdata = get_bss_sdata(sdata);
 	check_sdata_in_driver(sdata);
 
+	WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
+		sdata->vif.type != NL80211_IFTYPE_ADHOC);
+
 	trace_drv_sta_rc_update(local, sdata, sta, changed);
 	if (local->ops->sta_rc_update)
 		local->ops->sta_rc_update(&local->hw, &sdata->vif,
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 5746d62faba1..a9d93285dba7 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -109,7 +109,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	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);
+	eth_broadcast_addr(mgmt->da);
 	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
 	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
 	mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
@@ -205,7 +205,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	mod_timer(&ifibss->timer,
 		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
 
-	bss = cfg80211_inform_bss_frame(local->hw.wiphy, local->hw.conf.channel,
+	bss = cfg80211_inform_bss_frame(local->hw.wiphy, chan,
 					mgmt, skb->len, 0, GFP_KERNEL);
 	cfg80211_put_bss(bss);
 	netif_carrier_on(sdata->dev);
@@ -294,7 +294,7 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
-	int band = local->hw.conf.channel->band;
+	int band = local->oper_channel->band;
 
 	/*
 	 * XXX: Consider removing the least recently used entry and
@@ -459,8 +459,11 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			}
 		}
 
-		if (sta && rates_updated)
+		if (sta && rates_updated) {
+			drv_sta_rc_update(local, sdata, &sta->sta,
+					  IEEE80211_RC_SUPP_RATES_CHANGED);
 			rate_control_rate_init(sta);
+		}
 
 		rcu_read_unlock();
 	}
@@ -561,7 +564,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
-	int band = local->hw.conf.channel->band;
+	int band = local->oper_channel->band;
 
 	/*
 	 * XXX: Consider removing the least recently used entry and
@@ -759,7 +762,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 				return;
 			}
 			sdata_info(sdata, "IBSS not allowed on %d MHz\n",
-				   local->hw.conf.channel->center_freq);
+				   local->oper_channel->center_freq);
 
 			/* No IBSS found - decrease scan interval and continue
 			 * scanning. */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index bb61f7718c4c..204bfedba306 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -193,8 +193,6 @@ struct ieee80211_tx_data {
 	struct sta_info *sta;
 	struct ieee80211_key *key;
 
-	struct ieee80211_channel *channel;
-
 	unsigned int flags;
 };
 
@@ -274,9 +272,15 @@ struct beacon_data {
 	struct rcu_head rcu_head;
 };
 
+struct probe_resp {
+	struct rcu_head rcu_head;
+	int len;
+	u8 data[0];
+};
+
 struct ieee80211_if_ap {
 	struct beacon_data __rcu *beacon;
-	struct sk_buff __rcu *probe_resp;
+	struct probe_resp __rcu *probe_resp;
 
 	struct list_head vlans;
 
@@ -359,6 +363,7 @@ enum ieee80211_sta_flags {
 	IEEE80211_STA_NULLFUNC_ACKED	= BIT(8),
 	IEEE80211_STA_RESET_SIGNAL_AVE	= BIT(9),
 	IEEE80211_STA_DISABLE_40MHZ	= BIT(10),
+	IEEE80211_STA_DISABLE_VHT	= BIT(11),
 };
 
 struct ieee80211_mgd_auth_data {
@@ -1075,6 +1080,8 @@ struct ieee80211_local {
 	struct idr ack_status_frames;
 	spinlock_t ack_status_lock;
 
+	struct ieee80211_sub_if_data __rcu *p2p_sdata;
+
 	/* dummy netdev for use w/ NAPI */
 	struct net_device napi_dev;
 
@@ -1131,7 +1138,7 @@ struct ieee802_11_elems {
 	u8 *prep;
 	u8 *perr;
 	struct ieee80211_rann_ie *rann;
-	u8 *ch_switch_elem;
+	struct ieee80211_channel_sw_ie *ch_switch_ie;
 	u8 *country_elem;
 	u8 *pwr_constr_elem;
 	u8 *quiet_elem;	/* first quite element */
@@ -1157,7 +1164,6 @@ struct ieee802_11_elems {
 	u8 preq_len;
 	u8 prep_len;
 	u8 perr_len;
-	u8 ch_switch_elem_len;
 	u8 country_elem_len;
 	u8 pwr_constr_elem_len;
 	u8 quiet_elem_len;
@@ -1202,6 +1208,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 void ieee80211_send_pspoll(struct ieee80211_local *local,
 			   struct ieee80211_sub_if_data *sdata);
 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
+void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
 int ieee80211_max_network_latency(struct notifier_block *nb,
 				  unsigned long data, void *dummy);
 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
@@ -1291,6 +1298,8 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local);
 void ieee80211_recalc_idle(struct ieee80211_local *local);
 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
 				    const int offset);
+int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
+void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
 
 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
 {
@@ -1425,7 +1434,6 @@ 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, bool ack);
-void ieee80211_beacon_connection_loss_work(struct work_struct *work);
 
 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
@@ -1457,13 +1465,15 @@ int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
 			     u8 channel);
 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
 					  u8 *dst, u32 ratemask,
+					  struct ieee80211_channel *chan,
 					  const u8 *ssid, size_t ssid_len,
 					  const u8 *ie, size_t ie_len,
 					  bool directed);
 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,
-			      u32 ratemask, bool directed, bool no_cck);
+			      u32 ratemask, bool directed, bool no_cck,
+			      struct ieee80211_channel *channel);
 
 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 				  const size_t supp_rates_len,
@@ -1487,9 +1497,11 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 			       u32 cap);
 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
-			    struct sk_buff *skb, bool need_basic);
+			    struct sk_buff *skb, bool need_basic,
+			    enum ieee80211_band band);
 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
-				struct sk_buff *skb, bool need_basic);
+				struct sk_buff *skb, bool need_basic,
+				enum ieee80211_band band);
 
 /* channel management */
 enum ieee80211_chan_mode {
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index bfb57dcc1538..59f8adc2aa5f 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -100,6 +100,10 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
 			sdata->vif.bss_conf.idle = true;
 			continue;
 		}
+
+		if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
+			continue;
+
 		/* count everything else */
 		sdata->vif.bss_conf.idle = false;
 		count++;
@@ -121,7 +125,8 @@ static u32 __ieee80211_recalc_idle(struct ieee80211_local *local)
 
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		if (sdata->vif.type == NL80211_IFTYPE_MONITOR ||
-		    sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+		    sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
+		    sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE)
 			continue;
 		if (sdata->old_idle == sdata->vif.bss_conf.idle)
 			continue;
@@ -204,6 +209,8 @@ static inline int identical_mac_addr_allowed(int type1, int type2)
 {
 	return type1 == NL80211_IFTYPE_MONITOR ||
 		type2 == NL80211_IFTYPE_MONITOR ||
+		type1 == NL80211_IFTYPE_P2P_DEVICE ||
+		type2 == NL80211_IFTYPE_P2P_DEVICE ||
 		(type1 == NL80211_IFTYPE_AP && type2 == NL80211_IFTYPE_WDS) ||
 		(type1 == NL80211_IFTYPE_WDS &&
 			(type2 == NL80211_IFTYPE_WDS ||
@@ -406,9 +413,10 @@ static void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
  * an error on interface type changes that have been pre-checked, so most
  * checks should be in ieee80211_check_concurrent_iface.
  */
-static int ieee80211_do_open(struct net_device *dev, bool coming_up)
+int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 {
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct net_device *dev = wdev->netdev;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	u32 changed = 0;
@@ -443,6 +451,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_MONITOR:
 	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		/* no special treatment */
 		break;
 	case NL80211_IFTYPE_UNSPECIFIED:
@@ -471,7 +480,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 	 * Copy the hopefully now-present MAC address to
 	 * this interface, if it has the special null one.
 	 */
-	if (is_zero_ether_addr(dev->dev_addr)) {
+	if (dev && is_zero_ether_addr(dev->dev_addr)) {
 		memcpy(dev->dev_addr,
 		       local->hw.wiphy->perm_addr,
 		       ETH_ALEN);
@@ -536,15 +545,23 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 			local->fif_probe_req++;
 		}
 
-		changed |= ieee80211_reset_erp_info(sdata);
+		if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE)
+			changed |= ieee80211_reset_erp_info(sdata);
 		ieee80211_bss_info_change_notify(sdata, changed);
 
-		if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-		    sdata->vif.type == NL80211_IFTYPE_ADHOC ||
-		    sdata->vif.type == NL80211_IFTYPE_AP)
+		switch (sdata->vif.type) {
+		case NL80211_IFTYPE_STATION:
+		case NL80211_IFTYPE_ADHOC:
+		case NL80211_IFTYPE_AP:
+		case NL80211_IFTYPE_MESH_POINT:
 			netif_carrier_off(dev);
-		else
+			break;
+		case NL80211_IFTYPE_WDS:
+		case NL80211_IFTYPE_P2P_DEVICE:
+			break;
+		default:
 			netif_carrier_on(dev);
+		}
 
 		/*
 		 * set default queue parameters so drivers don't
@@ -576,6 +593,9 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 		}
 
 		rate_control_rate_init(sta);
+		netif_carrier_on(dev);
+	} else if (sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE) {
+		rcu_assign_pointer(local->p2p_sdata, sdata);
 	}
 
 	/*
@@ -601,7 +621,8 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
 
 	ieee80211_recalc_ps(local, -1);
 
-	netif_tx_start_all_queues(dev);
+	if (dev)
+		netif_tx_start_all_queues(dev);
 
 	return 0;
  err_del_interface:
@@ -631,7 +652,7 @@ static int ieee80211_open(struct net_device *dev)
 	if (err)
 		return err;
 
-	return ieee80211_do_open(dev, true);
+	return ieee80211_do_open(&sdata->wdev, true);
 }
 
 static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
@@ -652,7 +673,8 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	/*
 	 * Stop TX on this interface first.
 	 */
-	netif_tx_stop_all_queues(sdata->dev);
+	if (sdata->dev)
+		netif_tx_stop_all_queues(sdata->dev);
 
 	ieee80211_roc_purge(sdata);
 
@@ -691,14 +713,16 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		local->fif_probe_req--;
 	}
 
-	netif_addr_lock_bh(sdata->dev);
-	spin_lock_bh(&local->filter_lock);
-	__hw_addr_unsync(&local->mc_list, &sdata->dev->mc,
-			 sdata->dev->addr_len);
-	spin_unlock_bh(&local->filter_lock);
-	netif_addr_unlock_bh(sdata->dev);
+	if (sdata->dev) {
+		netif_addr_lock_bh(sdata->dev);
+		spin_lock_bh(&local->filter_lock);
+		__hw_addr_unsync(&local->mc_list, &sdata->dev->mc,
+				 sdata->dev->addr_len);
+		spin_unlock_bh(&local->filter_lock);
+		netif_addr_unlock_bh(sdata->dev);
 
-	ieee80211_configure_filter(local);
+		ieee80211_configure_filter(local);
+	}
 
 	del_timer_sync(&local->dynamic_ps_timer);
 	cancel_work_sync(&local->dynamic_ps_enable_work);
@@ -708,7 +732,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		struct ieee80211_sub_if_data *vlan, *tmpsdata;
 		struct beacon_data *old_beacon =
 			rtnl_dereference(sdata->u.ap.beacon);
-		struct sk_buff *old_probe_resp =
+		struct probe_resp *old_probe_resp =
 			rtnl_dereference(sdata->u.ap.probe_resp);
 
 		/* sdata_running will return false, so this will disable */
@@ -720,7 +744,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
 		synchronize_rcu();
 		kfree(old_beacon);
-		kfree_skb(old_probe_resp);
+		kfree(old_probe_resp);
 
 		/* down all dependent devices, that is VLANs */
 		list_for_each_entry_safe(vlan, tmpsdata, &sdata->u.ap.vlans,
@@ -759,6 +783,10 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		ieee80211_adjust_monitor_flags(sdata, -1);
 		ieee80211_configure_filter(local);
 		break;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		/* relies on synchronize_rcu() below */
+		rcu_assign_pointer(local->p2p_sdata, NULL);
+		/* fall through */
 	default:
 		flush_work(&sdata->work);
 		/*
@@ -771,14 +799,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		skb_queue_purge(&sdata->skb_queue);
 
 		/*
-		 * Disable beaconing here for mesh only, AP and IBSS
-		 * are already taken care of.
-		 */
-		if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
-			ieee80211_bss_info_change_notify(sdata,
-				BSS_CHANGED_BEACON_ENABLED);
-
-		/*
 		 * Free all remaining keys, there shouldn't be any,
 		 * except maybe group keys in AP more or WDS?
 		 */
@@ -877,9 +897,8 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
  * Called when the netdev is removed or, by the code below, before
  * the interface type changes.
  */
-static void ieee80211_teardown_sdata(struct net_device *dev)
+static void ieee80211_teardown_sdata(struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
 	int flushed;
 	int i;
@@ -900,6 +919,11 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 	WARN_ON(flushed);
 }
 
+static void ieee80211_uninit(struct net_device *dev)
+{
+	ieee80211_teardown_sdata(IEEE80211_DEV_TO_SUB_IF(dev));
+}
+
 static u16 ieee80211_netdev_select_queue(struct net_device *dev,
 					 struct sk_buff *skb)
 {
@@ -909,7 +933,7 @@ static u16 ieee80211_netdev_select_queue(struct net_device *dev,
 static const struct net_device_ops ieee80211_dataif_ops = {
 	.ndo_open		= ieee80211_open,
 	.ndo_stop		= ieee80211_stop,
-	.ndo_uninit		= ieee80211_teardown_sdata,
+	.ndo_uninit		= ieee80211_uninit,
 	.ndo_start_xmit		= ieee80211_subif_start_xmit,
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
@@ -940,7 +964,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev,
 static const struct net_device_ops ieee80211_monitorif_ops = {
 	.ndo_open		= ieee80211_open,
 	.ndo_stop		= ieee80211_stop,
-	.ndo_uninit		= ieee80211_teardown_sdata,
+	.ndo_uninit		= ieee80211_uninit,
 	.ndo_start_xmit		= ieee80211_monitor_start_xmit,
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
@@ -1099,7 +1123,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	/* and set some type-dependent values */
 	sdata->vif.type = type;
 	sdata->vif.p2p = false;
-	sdata->dev->netdev_ops = &ieee80211_dataif_ops;
 	sdata->wdev.iftype = type;
 
 	sdata->control_port_protocol = cpu_to_be16(ETH_P_PAE);
@@ -1107,8 +1130,11 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 
 	sdata->noack_map = 0;
 
-	/* only monitor differs */
-	sdata->dev->type = ARPHRD_ETHER;
+	/* only monitor/p2p-device differ */
+	if (sdata->dev) {
+		sdata->dev->netdev_ops = &ieee80211_dataif_ops;
+		sdata->dev->type = ARPHRD_ETHER;
+	}
 
 	skb_queue_head_init(&sdata->skb_queue);
 	INIT_WORK(&sdata->work, ieee80211_iface_work);
@@ -1146,6 +1172,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 		break;
 	case NL80211_IFTYPE_WDS:
 	case NL80211_IFTYPE_AP_VLAN:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
 	case NL80211_IFTYPE_UNSPECIFIED:
 	case NUM_NL80211_IFTYPES:
@@ -1156,18 +1183,6 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	ieee80211_debugfs_add_netdev(sdata);
 }
 
-static void ieee80211_clean_sdata(struct ieee80211_sub_if_data *sdata)
-{
-	switch (sdata->vif.type) {
-	case NL80211_IFTYPE_MESH_POINT:
-		mesh_path_flush_by_iface(sdata);
-		break;
-
-	default:
-		break;
-	}
-}
-
 static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
 					   enum nl80211_iftype type)
 {
@@ -1225,7 +1240,7 @@ static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_do_stop(sdata, false);
 
-	ieee80211_teardown_sdata(sdata->dev);
+	ieee80211_teardown_sdata(sdata);
 
 	ret = drv_change_interface(local, sdata, internal_type, p2p);
 	if (ret)
@@ -1240,7 +1255,7 @@ static int ieee80211_runtime_change_iftype(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_setup_sdata(sdata, type);
 
-	err = ieee80211_do_open(sdata->dev, false);
+	err = ieee80211_do_open(&sdata->wdev, false);
 	WARN(err, "type change: do_open returned %d", err);
 
 	return ret;
@@ -1267,14 +1282,14 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,