nfs: disintegrate UAPI for nfs

This is to complete part of the Userspace API (UAPI) disintegration for which
the preparatory patches were pulled recently.  After these patches, userspace
headers will be segregated into:

        include/uapi/linux/.../foo.h

for the userspace interface stuff, and:

        include/linux/.../foo.h

for the strictly kernel internal stuff.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

11 files changed, 349 insertions, 130 deletions

diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index d355f67..2f876b9 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -105,7 +105,7 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (!netif_running(wdev->netdev))
+	if (wdev->netdev && !netif_running(wdev->netdev))
 		return;
 
 	switch (wdev->iftype) {
@@ -143,6 +143,11 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
 	case NL80211_IFTYPE_WDS:
 		/* these interface types don't really have a channel */
 		return;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		if (wdev->wiphy->features &
+				NL80211_FEATURE_P2P_DEVICE_NEEDS_CHANNEL)
+			*chanmode = CHAN_MODE_EXCLUSIVE;
+		return;
 	case NL80211_IFTYPE_UNSPECIFIED:
 	case NUM_NL80211_IFTYPES:
 		WARN_ON(1);
diff --git a/net/wireless/core.c b/net/wireless/core.c
index dcd64d5..443d4d7 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -230,9 +230,24 @@ static int cfg80211_rfkill_set_block(void *data, bool blocked)
 	rtnl_lock();
 	mutex_lock(&rdev->devlist_mtx);
 
-	list_for_each_entry(wdev, &rdev->wdev_list, list)
-		if (wdev->netdev)
+	list_for_each_entry(wdev, &rdev->wdev_list, list) {
+		if (wdev->netdev) {
 			dev_close(wdev->netdev);
+			continue;
+		}
+		/* otherwise, check iftype */
+		switch (wdev->iftype) {
+		case NL80211_IFTYPE_P2P_DEVICE:
+			if (!wdev->p2p_started)
+				break;
+			rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+			wdev->p2p_started = false;
+			rdev->opencount--;
+			break;
+		default:
+			break;
+		}
+	}
 
 	mutex_unlock(&rdev->devlist_mtx);
 	rtnl_unlock();
@@ -407,6 +422,11 @@ static int wiphy_verify_combinations(struct wiphy *wiphy)
 			if (WARN_ON(wiphy->software_iftypes & types))
 				return -EINVAL;
 
+			/* Only a single P2P_DEVICE can be allowed */
+			if (WARN_ON(types & BIT(NL80211_IFTYPE_P2P_DEVICE) &&
+				    c->limits[j].max > 1))
+				return -EINVAL;
+
 			cnt += c->limits[j].max;
 			/*
 			 * Don't advertise an unsupported type
@@ -734,6 +754,35 @@ static void wdev_cleanup_work(struct work_struct *work)
 	dev_put(wdev->netdev);
 }
 
+void cfg80211_unregister_wdev(struct wireless_dev *wdev)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+
+	ASSERT_RTNL();
+
+	if (WARN_ON(wdev->netdev))
+		return;
+
+	mutex_lock(&rdev->devlist_mtx);
+	list_del_rcu(&wdev->list);
+	rdev->devlist_generation++;
+
+	switch (wdev->iftype) {
+	case NL80211_IFTYPE_P2P_DEVICE:
+		if (!wdev->p2p_started)
+			break;
+		rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+		wdev->p2p_started = false;
+		rdev->opencount--;
+		break;
+	default:
+		WARN_ON_ONCE(1);
+		break;
+	}
+	mutex_unlock(&rdev->devlist_mtx);
+}
+EXPORT_SYMBOL(cfg80211_unregister_wdev);
+
 static struct device_type wiphy_type = {
 	.name	= "wlan",
 };
diff --git a/net/wireless/core.h b/net/wireless/core.h
index bc7430b..a343be4 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -55,7 +55,7 @@ struct cfg80211_registered_device {
 	int opencount; /* also protected by devlist_mtx */
 	wait_queue_head_t dev_wait;
 
-	u32 ap_beacons_nlpid;
+	u32 ap_beacons_nlportid;
 
 	/* protected by RTNL only */
 	int num_running_ifaces;
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 1cdb1d5..8016fee 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -612,10 +612,21 @@ void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
 }
 EXPORT_SYMBOL(cfg80211_del_sta);
 
+void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
+			  enum nl80211_connect_failed_reason reason,
+			  gfp_t gfp)
+{
+	struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
+	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+
+	nl80211_send_conn_failed_event(rdev, dev, mac_addr, reason, gfp);
+}
+EXPORT_SYMBOL(cfg80211_conn_failed);
+
 struct cfg80211_mgmt_registration {
 	struct list_head list;
 
-	u32 nlpid;
+	u32 nlportid;
 
 	int match_len;
 
@@ -624,7 +635,7 @@ struct cfg80211_mgmt_registration {
 	u8 match[];
 };
 
-int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
+int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_portid,
 				u16 frame_type, const u8 *match_data,
 				int match_len)
 {
@@ -672,7 +683,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 
 	memcpy(nreg->match, match_data, match_len);
 	nreg->match_len = match_len;
-	nreg->nlpid = snd_pid;
+	nreg->nlportid = snd_portid;
 	nreg->frame_type = cpu_to_le16(frame_type);
 	list_add(&nreg->list, &wdev->mgmt_registrations);
 
@@ -685,7 +696,7 @@ int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
 	return err;
 }
 
-void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid)
+void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlportid)
 {
 	struct wiphy *wiphy = wdev->wiphy;
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
@@ -694,7 +705,7 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid)
 	spin_lock_bh(&wdev->mgmt_registrations_lock);
 
 	list_for_each_entry_safe(reg, tmp, &wdev->mgmt_registrations, list) {
-		if (reg->nlpid != nlpid)
+		if (reg->nlportid != nlportid)
 			continue;
 
 		if (rdev->ops->mgmt_frame_register) {
@@ -710,8 +721,8 @@ void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid)
 
 	spin_unlock_bh(&wdev->mgmt_registrations_lock);
 
-	if (nlpid == wdev->ap_unexpected_nlpid)
-		wdev->ap_unexpected_nlpid = 0;
+	if (nlportid == wdev->ap_unexpected_nlportid)
+		wdev->ap_unexpected_nlportid = 0;
 }
 
 void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev)
@@ -736,7 +747,6 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 			  const u8 *buf, size_t len, bool no_cck,
 			  bool dont_wait_for_ack, u64 *cookie)
 {
-	struct net_device *dev = wdev->netdev;
 	const struct ieee80211_mgmt *mgmt;
 	u16 stype;
 
@@ -796,7 +806,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 		case NL80211_IFTYPE_AP:
 		case NL80211_IFTYPE_P2P_GO:
 		case NL80211_IFTYPE_AP_VLAN:
-			if (!ether_addr_equal(mgmt->bssid, dev->dev_addr))
+			if (!ether_addr_equal(mgmt->bssid, wdev_address(wdev)))
 				err = -EINVAL;
 			break;
 		case NL80211_IFTYPE_MESH_POINT:
@@ -809,6 +819,11 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 			 * cfg80211 doesn't track the stations
 			 */
 			break;
+		case NL80211_IFTYPE_P2P_DEVICE:
+			/*
+			 * fall through, P2P device only supports
+			 * public action frames
+			 */
 		default:
 			err = -EOPNOTSUPP;
 			break;
@@ -819,7 +834,7 @@ int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
 			return err;
 	}
 
-	if (!ether_addr_equal(mgmt->sa, dev->dev_addr))
+	if (!ether_addr_equal(mgmt->sa, wdev_address(wdev)))
 		return -EINVAL;
 
 	/* Transmit the Action frame as requested by user space */
@@ -868,7 +883,7 @@ bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_mbm,
 		/* found match! */
 
 		/* Indicate the received Action frame to user space */
-		if (nl80211_send_mgmt(rdev, wdev, reg->nlpid,
+		if (nl80211_send_mgmt(rdev, wdev, reg->nlportid,
 				      freq, sig_mbm,
 				      buf, len, gfp))
 			continue;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 97026f3..0418a6d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -496,11 +496,11 @@ static bool is_valid_ie_attr(const struct nlattr *attr)
 }
 
 /* message building helper */
-static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
+static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
 				   int flags, u8 cmd)
 {
 	/* since there is no private header just add the generic one */
-	return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
+	return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
 }
 
 static int nl80211_msg_put_channel(struct sk_buff *msg,
@@ -851,7 +851,7 @@ nla_put_failure:
 	return -ENOBUFS;
 }
 
-static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
 			      struct cfg80211_registered_device *dev)
 {
 	void *hdr;
@@ -866,7 +866,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 	const struct ieee80211_txrx_stypes *mgmt_stypes =
 				dev->wiphy.mgmt_stypes;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
 	if (!hdr)
 		return -1;
 
@@ -1100,6 +1100,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
 		if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
 			goto nla_put_failure;
 	}
+	CMD(start_p2p_device, START_P2P_DEVICE);
 
 #ifdef CONFIG_NL80211_TESTMODE
 	CMD(testmode_cmd, TESTMODE);
@@ -1266,7 +1267,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
 			continue;
 		if (++idx <= start)
 			continue;
-		if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
+		if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
 				       cb->nlh->nlmsg_seq, NLM_F_MULTI,
 				       dev) < 0) {
 			idx--;
@@ -1289,7 +1290,7 @@ static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
+	if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
 	}
@@ -1735,26 +1736,26 @@ static inline u64 wdev_id(struct wireless_dev *wdev)
 	       ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
 }
 
-static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
 			      struct cfg80211_registered_device *rdev,
 			      struct wireless_dev *wdev)
 {
 	struct net_device *dev = wdev->netdev;
 	void *hdr;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
 	if (!hdr)
 		return -1;
 
 	if (dev &&
 	    (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
-	     nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
-	     nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
+	     nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
 		goto nla_put_failure;
 
 	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
 	    nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
 	    nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
+	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
 	    nla_put_u32(msg, NL80211_ATTR_GENERATION,
 			rdev->devlist_generation ^
 			(cfg80211_rdev_list_generation << 2)))
@@ -1806,7 +1807,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 				if_idx++;
 				continue;
 			}
-			if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
+			if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
 					       cb->nlh->nlmsg_seq, NLM_F_MULTI,
 					       rdev, wdev) < 0) {
 				mutex_unlock(&rdev->devlist_mtx);
@@ -1837,7 +1838,7 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
+	if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
 			       dev, wdev) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
@@ -2021,8 +2022,10 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 		return PTR_ERR(wdev);
 	}
 
-	if (type == NL80211_IFTYPE_MESH_POINT &&
-	    info->attrs[NL80211_ATTR_MESH_ID]) {
+	switch (type) {
+	case NL80211_IFTYPE_MESH_POINT:
+		if (!info->attrs[NL80211_ATTR_MESH_ID])
+			break;
 		wdev_lock(wdev);
 		BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
 			     IEEE80211_MAX_MESH_ID_LEN);
@@ -2031,9 +2034,29 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 		memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
 		       wdev->mesh_id_up_len);
 		wdev_unlock(wdev);
+		break;
+	case NL80211_IFTYPE_P2P_DEVICE:
+		/*
+		 * P2P Device doesn't have a netdev, so doesn't go
+		 * through the netdev notifier and must be added here
+		 */
+		mutex_init(&wdev->mtx);
+		INIT_LIST_HEAD(&wdev->event_list);
+		spin_lock_init(&wdev->event_lock);
+		INIT_LIST_HEAD(&wdev->mgmt_registrations);
+		spin_lock_init(&wdev->mgmt_registrations_lock);
+
+		mutex_lock(&rdev->devlist_mtx);
+		wdev->identifier = ++rdev->wdev_id;
+		list_add_rcu(&wdev->list, &rdev->wdev_list);
+		rdev->devlist_generation++;
+		mutex_unlock(&rdev->devlist_mtx);
+		break;
+	default:
+		break;
 	}
 
-	if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
+	if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
 			       rdev, wdev) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
@@ -2168,7 +2191,7 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_NEW_KEY);
 	if (IS_ERR(hdr))
 		return PTR_ERR(hdr);
@@ -2746,7 +2769,7 @@ nla_put_failure:
 	return false;
 }
 
-static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
+static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
 				int flags,
 				struct cfg80211_registered_device *rdev,
 				struct net_device *dev,
@@ -2755,7 +2778,7 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
 	void *hdr;
 	struct nlattr *sinfoattr, *bss_param;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
 	if (!hdr)
 		return -1;
 
@@ -2908,7 +2931,7 @@ static int nl80211_dump_station(struct sk_buff *skb,
 			goto out_err;
 
 		if (nl80211_send_station(skb,
-				NETLINK_CB(cb->skb).pid,
+				NETLINK_CB(cb->skb).portid,
 				cb->nlh->nlmsg_seq, NLM_F_MULTI,
 				dev, netdev, mac_addr,
 				&sinfo) < 0)
@@ -2954,7 +2977,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
+	if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
 				 rdev, dev, mac_addr, &sinfo) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
@@ -3280,7 +3303,7 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
 	return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
 }
 
-static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
+static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
 				int flags, struct net_device *dev,
 				u8 *dst, u8 *next_hop,
 				struct mpath_info *pinfo)
@@ -3288,7 +3311,7 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
 	void *hdr;
 	struct nlattr *pinfoattr;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
 	if (!hdr)
 		return -1;
 
@@ -3366,7 +3389,7 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
 		if (err)
 			goto out_err;
 
-		if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
+		if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
 				       cb->nlh->nlmsg_seq, NLM_F_MULTI,
 				       netdev, dst, next_hop,
 				       &pinfo) < 0)
@@ -3415,7 +3438,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
+	if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
 				 dev, dst, next_hop, &pinfo) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
@@ -3656,7 +3679,7 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return -ENOMEM;
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_GET_MESH_CONFIG);
 	if (!hdr)
 		goto out;
@@ -3975,7 +3998,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
 		goto out;
 	}
 
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_GET_REG);
 	if (!hdr)
 		goto put_failure;
@@ -4593,7 +4616,7 @@ static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
+	hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
 			     NL80211_CMD_NEW_SCAN_RESULTS);
 	if (!hdr)
 		return -1;
@@ -4712,14 +4735,14 @@ static int nl80211_dump_scan(struct sk_buff *skb,
 	return skb->len;
 }
 
-static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
+static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
 				int flags, struct net_device *dev,
 				struct survey_info *survey)
 {
 	void *hdr;
 	struct nlattr *infoattr;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags,
+	hdr = nl80211hdr_put(msg, portid, seq, flags,
 			     NL80211_CMD_NEW_SURVEY_RESULTS);
 	if (!hdr)
 		return -ENOMEM;
@@ -4813,7 +4836,7 @@ static int nl80211_dump_survey(struct sk_buff *skb,
 		}
 
 		if (nl80211_send_survey(skb,
-				NETLINK_CB(cb->skb).pid,
+				NETLINK_CB(cb->skb).portid,
 				cb->nlh->nlmsg_seq, NLM_F_MULTI,
 				netdev,
 				&survey) < 0)
@@ -5428,7 +5451,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 	}
 
 	while (1) {
-		void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
+		void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
 					   cb->nlh->nlmsg_seq, NLM_F_MULTI,
 					   NL80211_CMD_TESTMODE);
 		struct nlattr *tmdata;
@@ -5468,7 +5491,7 @@ static int nl80211_testmode_dump(struct sk_buff *skb,
 
 static struct sk_buff *
 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
-			      int approxlen, u32 pid, u32 seq, gfp_t gfp)
+			      int approxlen, u32 portid, u32 seq, gfp_t gfp)
 {
 	struct sk_buff *skb;
 	void *hdr;
@@ -5478,7 +5501,7 @@ __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
 	if (!skb)
 		return NULL;
 
-	hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
+	hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
 	if (!hdr) {
 		kfree_skb(skb);
 		return NULL;
@@ -5508,7 +5531,7 @@ struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
 		return NULL;
 
 	return __cfg80211_testmode_alloc_skb(rdev, approxlen,
-				rdev->testmode_info->snd_pid,
+				rdev->testmode_info->snd_portid,
 				rdev->testmode_info->snd_seq,
 				GFP_KERNEL);
 }
@@ -5633,8 +5656,10 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
 		       sizeof(connect.ht_capa_mask));
 
 	if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
-		if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
+		if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
+			kfree(connkeys);
 			return -EINVAL;
+		}
 		memcpy(&connect.ht_capa,
 		       nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
 		       sizeof(connect.ht_capa));
@@ -5844,7 +5869,7 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
 	if (!msg)
 		return -ENOMEM;
 
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_REMAIN_ON_CHANNEL);
 
 	if (IS_ERR(hdr)) {
@@ -6053,6 +6078,7 @@ static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_P2P_GO:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -6062,7 +6088,7 @@ static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
 	if (!rdev->ops->mgmt_tx)
 		return -EOPNOTSUPP;
 
-	return cfg80211_mlme_register_mgmt(wdev, info->snd_pid, frame_type,
+	return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
 			nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
 			nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
 }
@@ -6099,6 +6125,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_P2P_GO:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -6142,7 +6169,7 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
 		if (!msg)
 			return -ENOMEM;
 
-		hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+		hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 				     NL80211_CMD_FRAME);
 
 		if (IS_ERR(hdr)) {
@@ -6195,6 +6222,7 @@ static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *in
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_AP_VLAN:
 	case NL80211_IFTYPE_P2P_GO:
+	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
 	default:
 		return -EOPNOTSUPP;
@@ -6258,7 +6286,7 @@ static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_GET_POWER_SAVE);
 	if (!hdr) {
 		err = -ENOBUFS;
@@ -6460,7 +6488,7 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
 	if (!msg)
 		return -ENOMEM;
 
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_GET_WOWLAN);
 	if (!hdr)
 		goto nla_put_failure;
@@ -6734,10 +6762,10 @@ static int nl80211_register_unexpected_frame(struct sk_buff *skb,
 	    wdev->iftype != NL80211_IFTYPE_P2P_GO)
 		return -EINVAL;
 
-	if (wdev->ap_unexpected_nlpid)
+	if (wdev->ap_unexpected_nlportid)
 		return -EBUSY;
 
-	wdev->ap_unexpected_nlpid = info->snd_pid;
+	wdev->ap_unexpected_nlportid = info->snd_portid;
 	return 0;
 }
 
@@ -6767,7 +6795,7 @@ static int nl80211_probe_client(struct sk_buff *skb,
 	if (!msg)
 		return -ENOMEM;
 
-	hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+	hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
 			     NL80211_CMD_PROBE_CLIENT);
 
 	if (IS_ERR(hdr)) {
@@ -6802,10 +6830,72 @@ static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
 	if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
 		return -EOPNOTSUPP;
 
-	if (rdev->ap_beacons_nlpid)
+	if (rdev->ap_beacons_nlportid)
 		return -EBUSY;
 
-	rdev->ap_beacons_nlpid = info->snd_pid;
+	rdev->ap_beacons_nlportid = info->snd_portid;
+
+	return 0;
+}
+
+static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct wireless_dev *wdev = info->user_ptr[1];
+	int err;
+
+	if (!rdev->ops->start_p2p_device)
+		return -EOPNOTSUPP;
+
+	if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
+		return -EOPNOTSUPP;
+
+	if (wdev->p2p_started)
+		return 0;
+
+	mutex_lock(&rdev->devlist_mtx);
+	err = cfg80211_can_add_interface(rdev, wdev->iftype);
+	mutex_unlock(&rdev->devlist_mtx);
+	if (err)
+		return err;
+
+	err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);
+	if (err)
+		return err;
+
+	wdev->p2p_started = true;
+	mutex_lock(&rdev->devlist_mtx);
+	rdev->opencount++;
+	mutex_unlock(&rdev->devlist_mtx);
+
+	return 0;
+}
+
+static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct wireless_dev *wdev = info->user_ptr[1];
+
+	if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
+		return -EOPNOTSUPP;
+
+	if (!rdev->ops->stop_p2p_device)
+		return -EOPNOTSUPP;
+
+	if (!wdev->p2p_started)
+		return 0;
+
+	rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
+	wdev->p2p_started = false;
+
+	mutex_lock(&rdev->devlist_mtx);
+	rdev->opencount--;
+	mutex_unlock(&rdev->devlist_mtx);
+
+	if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
+		rdev->scan_req->aborted = true;
+		___cfg80211_scan_done(rdev, true);
+	}
 
 	return 0;
 }
@@ -6817,7 +6907,7 @@ static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
 #define NL80211_FLAG_NEED_NETDEV_UP	(NL80211_FLAG_NEED_NETDEV |\
 					 NL80211_FLAG_CHECK_NETDEV_UP)
 #define NL80211_FLAG_NEED_WDEV		0x10
-/* If a netdev is associated, it must be UP */
+/* If a netdev is associated, it must be UP, P2P must be started */
 #define NL80211_FLAG_NEED_WDEV_UP	(NL80211_FLAG_NEED_WDEV |\
 					 NL80211_FLAG_CHECK_NETDEV_UP)
 
@@ -6878,6 +6968,13 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 			}
 
 			dev_hold(dev);
+		} else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
+			if (!wdev->p2p_started) {
+				mutex_unlock(&cfg80211_mutex);
+				if (rtnl)
+					rtnl_unlock();
+				return -ENETDOWN;
+			}
 		}
 
 		cfg80211_lock_rdev(rdev);
@@ -7439,7 +7536,22 @@ static struct genl_ops nl80211_ops[] = {
 		.internal_flags = NL80211_FLAG_NEED_NETDEV |
 				  NL80211_FLAG_NEED_RTNL,
 	},
-
+	{
+		.cmd = NL80211_CMD_START_P2P_DEVICE,
+		.doit = nl80211_start_p2p_device,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_WDEV |
+				  NL80211_FLAG_NEED_RTNL,
+	},
+	{
+		.cmd = NL80211_CMD_STOP_P2P_DEVICE,
+		.doit = nl80211_stop_p2p_device,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
+				  NL80211_FLAG_NEED_RTNL,
+	},
 };
 
 static struct genl_multicast_group nl80211_mlme_mcgrp = {
@@ -7518,12 +7630,12 @@ static int nl80211_add_scan_req(struct sk_buff *msg,
 static int nl80211_send_scan_msg(struct sk_buff *msg,
 				 struct cfg80211_registered_device *rdev,
 				 struct wireless_dev *wdev,
-				 u32 pid, u32 seq, int flags,
+				 u32 portid, u32 seq, int flags,
 				 u32 cmd)
 {
 	void *hdr;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
 		return -1;
 
@@ -7547,11 +7659,11 @@ static int
 nl80211_send_sched_scan_msg(struct sk_buff *msg,
 			    struct cfg80211_registered_device *rdev,
 			    struct net_device *netdev,
-			    u32 pid, u32 seq, int flags, u32 cmd)
+			    u32 portid, u32 seq, int flags, u32 cmd)
 {
 	void *hdr;
 
-	hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
+	hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
 		return -1;
 
@@ -8252,6 +8364,40 @@ void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
 	nlmsg_free(msg);
 }
 
+void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, const u8 *mac_addr,
+				    enum nl80211_connect_failed_reason reason,
+				    gfp_t gfp)
+{
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
+	if (!hdr) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
+	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
+	    nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+
+	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 bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 				       const u8 *addr, gfp_t gfp)
 {
@@ -8260,9 +8406,9 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 	struct sk_buff *msg;
 	void *hdr;
 	int err;
-	u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
+	u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
 
-	if (!nlpid)
+	if (!nlportid)
 		return false;
 
 	msg = nlmsg_new(100, gfp);
@@ -8286,7 +8432,7 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 		return true;
 	}
 
-	genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
+	genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
 	return true;
 
  nla_put_failure:
@@ -8310,7 +8456,7 @@ bool nl80211_unexpected_4addr_frame(struct net_device *dev,
 }
 
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
-		      struct wireless_dev *wdev, u32 nlpid,
+		      struct wireless_dev *wdev, u32 nlportid,
 		      int freq, int sig_dbm,
 		      const u8 *buf, size_t len, gfp_t gfp)
 {
@@ -8339,7 +8485,7 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
+	return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
 
  nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -8694,9 +8840,9 @@ void cfg80211_report_obss_beacon(struct wiphy *wiphy,
 	struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
+	u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid);
 
-	if (!nlpid)
+	if (!nlportid)
 		return;
 
 	msg = nlmsg_new(len + 100, gfp);
@@ -8719,7 +8865,7 @@ void cfg80211_report_obss_beacon(struct wiphy *wiphy,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
+	genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
 	return;
 
  nla_put_failure:
@@ -8743,9 +8889,9 @@ static int nl80211_netlink_notify(struct notifier_block * nb,
 
 	list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
 		list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
-			cfg80211_mlme_unregister_socket(wdev, notify->pid);
-		if (rdev->ap_beacons_nlpid == notify->pid)
-			rdev->ap_beacons_nlpid = 0;
+			cfg80211_mlme_unregister_socket(wdev, notify->portid);
+		if (rdev->ap_beacons_nlportid == notify->portid)
+			rdev->ap_beacons_nlportid = 0;
 	}
 
 	rcu_read_unlock();
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index 9f2616f..f615351 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -91,6 +91,11 @@ void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
 				struct net_device *dev, const u8 *mac_addr,
 				gfp_t gfp);
 
+void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
+				    struct net_device *dev, const u8 *mac_addr,
+				    enum nl80211_connect_failed_reason reason,
+				    gfp_t gfp);
+
 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
 		      struct wireless_dev *wdev, u32 nlpid,
 		      int freq, int sig_dbm,
diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c
index c4ad795..7d604c0 100644
--- a/net/wireless/radiotap.c
+++ b/net/wireless/radiotap.c
@@ -41,6 +41,8 @@ static const struct radiotap_align_size rtap_namespace_sizes[] = {
 	[IEEE80211_RADIOTAP_TX_FLAGS] = { .align = 2, .size = 2, },
 	[IEEE80211_RADIOTAP_RTS_RETRIES] = { .align = 1, .size = 1, },
 	[IEEE80211_RADIOTAP_DATA_RETRIES] = { .align = 1, .size = 1, },
+	[IEEE80211_RADIOTAP_MCS] = { .align = 1, .size = 3, },
+	[IEEE80211_RADIOTAP_AMPDU_STATUS] = { .align = 4, .size = 8, },
 	/*
 	 * add more here as they are defined in radiotap.h
 	 */
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 2ded3c7..3b8cbbc 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -350,6 +350,9 @@ static void reg_regdb_search(struct work_struct *work)
 	struct reg_regdb_search_request *request;
 	const struct ieee80211_regdomain *curdom, *regdom;
 	int i, r;
+	bool set_reg = false;
+
+	mutex_lock(&cfg80211_mutex);
 
 	mutex_lock(&reg_regdb_search_mutex);
 	while (!list_empty(&reg_regdb_search_list)) {
@@ -365,9 +368,7 @@ static void reg_regdb_search(struct work_struct *work)
 				r = reg_copy_regd(&regdom, curdom);
 				if (r)
 					break;
-				mutex_lock(&cfg80211_mutex);
-				set_regdom(regdom);
-				mutex_unlock(&cfg80211_mutex);
+				set_reg = true;
 				break;
 			}
 		}
@@ -375,6 +376,11 @@ static void reg_regdb_search(struct work_struct *work)
 		kfree(request);
 	}
 	mutex_unlock(&reg_regdb_search_mutex);
+
+	if (set_reg)
+		set_regdom(regdom);
+
+	mutex_unlock(&cfg80211_mutex);
 }
 
 static DECLARE_WORK(reg_regdb_work, reg_regdb_search);
@@ -504,9 +510,11 @@ static bool reg_does_bw_fit(const struct ieee80211_freq_range *freq_range,
  *
  * This lets us know if a specific frequency rule is or is not relevant to
  * a specific frequency's band. Bands are device specific and artificial
- * definitions (the "2.4 GHz band" and the "5 GHz band"), however it is
- * safe for now to assume that a frequency rule should not be part of a
- * frequency's band if the start freq or end freq are off by more than 2 GHz.
+ * definitions (the "2.4 GHz band", the "5 GHz band" and the "60GHz band"),
+ * however it is safe for now to assume that a frequency rule should not be
+ * part of a frequency's band if the start freq or end freq are off by more
+ * than 2 GHz for the 2.4 and 5 GHz bands, and by more than 10 GHz for the
+ * 60 GHz band.
  * This resolution can be lowered and should be considered as we add
  * regulatory rule support for other "bands".
  **/
@@ -514,9 +522,16 @@ static bool freq_in_rule_band(const struct ieee80211_freq_range *freq_range,
 	u32 freq_khz)
 {
 #define ONE_GHZ_IN_KHZ	1000000
-	if (abs(freq_khz - freq_range->start_freq_khz) <= (2 * ONE_GHZ_IN_KHZ))
+	/*
+	 * From 802.11ad: directional multi-gigabit (DMG):
+	 * Pertaining to operation in a frequency band containing a channel
+	 * with the Channel starting frequency above 45 GHz.
+	 */
+	u32 limit = freq_khz > 45 * ONE_GHZ_IN_KHZ ?
+			10 * ONE_GHZ_IN_KHZ : 2 * ONE_GHZ_IN_KHZ;
+	if (abs(freq_khz - freq_range->start_freq_khz) <= limit)
 		return true;
-	if (abs(freq_khz - freq_range->end_freq_khz) <= (2 * ONE_GHZ_IN_KHZ))
+	if (abs(freq_khz - freq_range->end_freq_khz) <= limit)
 		return true;
 	return false;
 #undef ONE_GHZ_IN_KHZ
@@ -1949,8 +1964,7 @@ static void restore_regulatory_settings(bool reset_user)
 			if (reg_request->initiator !=
 			    NL80211_REGDOM_SET_BY_USER)
 				continue;
-			list_del(&reg_request->list);
-			list_add_tail(&reg_request->list, &tmp_reg_req_list);
+			list_move_tail(&reg_request->list, &tmp_reg_req_list);
 		}
 	}
 	spin_unlock(&reg_requests_lock);
@@ -2009,8 +2023,7 @@ static void restore_regulatory_settings(bool reset_user)
 			      "into the queue\n",
 			      reg_request->alpha2[0],
 			      reg_request->alpha2[1]);
-		list_del(&reg_request->list);
-		list_add_tail(&reg_request->list, &reg_requests_list);
+		list_move_tail(&reg_request->list, &reg_requests_list);
 	}
 	spin_unlock(&reg_requests_lock);
 
@@ -2195,7 +2208,6 @@ static void print_regdomain_info(const struct ieee80211_regdomain *rd)
 static int __set_regdom(const struct ieee80211_regdomain *rd)
 {
 	const struct ieee80211_regdomain *intersected_rd = NULL;
-	struct cfg80211_registered_device *rdev = NULL;
 	struct wiphy *request_wiphy;
 	/* Some basic sanity checks first */
 
@@ -2307,24 +2319,7 @@ static int __set_regdom(const struct ieee80211_regdomain *rd)
 		return 0;
 	}
 
-	if (!intersected_rd)
-		return -EINVAL;
-
-	rdev = wiphy_to_dev(request_wiphy);
-
-	rdev->country_ie_alpha2[0] = rd->alpha2[0];
-	rdev->country_ie_alpha2[1] = rd->alpha2[1];
-	rdev->env = last_request->country_ie_env;
-
-	BUG_ON(intersected_rd == rd);
-
-	kfree(rd);
-	rd = NULL;
-
-	reset_regdomains(false);
-	cfg80211_regdomain = intersected_rd;
-
-	return 0;
+	return -EINVAL;
 }
 
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 848523a..9730c98 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -815,7 +815,7 @@ cfg80211_inform_bss_frame(struct wiphy *wiphy,
 		return NULL;
 
 	if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
-	            (signal < 0 || signal > 100)))
+		    (signal < 0 || signal > 100)))
 		return NULL;
 
 	if (WARN_ON(len < offsetof(struct ieee80211_mgmt, u.probe_resp.variable)))
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 994e2f0..ef35f4e 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -684,22 +684,10 @@ EXPORT_SYMBOL(cfg80211_classify8021d);
 
 const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie)
 {
-	u8 *end, *pos;
-
-	pos = bss->information_elements;
-	if (pos == NULL)
+	if (bss->information_elements == NULL)
 		return NULL;
-	end = pos + bss->len_information_elements;
-
-	while (pos + 1 < end) {
-		if (pos + 2 + pos[1] > end)
-			break;
-		if (pos[0] == ie)
-			return pos;
-		pos += 2 + pos[1];
-	}
-
-	return NULL;
+	return cfg80211_find_ie(ie, bss->information_elements,
+				 bss->len_information_elements);
 }
 EXPORT_SYMBOL(ieee80211_bss_get_ie);
 
@@ -812,6 +800,10 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 	if (otype == NL80211_IFTYPE_AP_VLAN)
 		return -EOPNOTSUPP;
 
+	/* cannot change into P2P device type */
+	if (ntype == NL80211_IFTYPE_P2P_DEVICE)
+		return -EOPNOTSUPP;
+
 	if (!rdev->ops->change_virtual_intf ||
 	    !(rdev->wiphy.interface_modes & (1 << ntype)))
 		return -EOPNOTSUPP;
@@ -889,6 +881,9 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
 		case NUM_NL80211_IFTYPES:
 			/* not happening */
 			break;
+		case NL80211_IFTYPE_P2P_DEVICE:
+			WARN_ON(1);
+			break;
 		}
 	}
 
@@ -1053,8 +1048,15 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
 	list_for_each_entry(wdev_iter, &rdev->wdev_list, list) {
 		if (wdev_iter == wdev)
 			continue;
-		if (!netif_running(wdev_iter->netdev))
-			continue;
+		if (wdev_iter->netdev) {
+			if (!netif_running(wdev_iter->netdev))
+				continue;
+		} else if (wdev_iter->iftype == NL80211_IFTYPE_P2P_DEVICE) {
+			if (!wdev_iter->p2p_started)
+				continue;
+		} else {
+			WARN_ON(1);
+		}
 
 		if (rdev->wiphy.software_iftypes & BIT(wdev_iter->iftype))
 			continue;
diff --git a/net/wireless/wext-core.c b/net/wireless/wext-core.c
index b0eb7aa..c8717c1 100644
--- a/net/wireless/wext-core.c
+++ b/net/wireless/wext-core.c
@@ -478,13 +478,13 @@ 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) {
-			netdev_err(dev, "(WE) : Wireless Event too big (%d)\n",
-				   wrqu->data.length);
+			netdev_err(dev, "(WE) : Wireless Event (cmd=0x%04X) too big (%d)\n",
+				   cmd, wrqu->data.length);
 			return;
 		}
 		if (wrqu->data.length < descr->min_tokens) {
-			netdev_err(dev, "(WE) : Wireless Event too small (%d)\n",
-				   wrqu->data.length);
+			netdev_err(dev, "(WE) : Wireless Event (cmd=0x%04X) too small (%d)\n",
+				   cmd, wrqu->data.length);
 			return;
 		}
 		/* Calculate extra_len - extra is NULL for restricted events */