Merge tag 'mac80211-next-for-davem-2018-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says: ==================== This time we have too many changes to list, highlights: * virt_wifi - wireless control simulation on top of another network interface * hwsim configurability to test capabilities similar to real hardware * various mesh improvements * various radiotap vendor data fixes in mac80211 * finally the nl_set_extack_cookie_u64() we talked about previously, used for * peer measurement APIs, right now only with FTM (flight time measurement) for location * made nl80211 radio/interface announcements more complete * various new HE (802.11ax) things: updates, TWT support, ... ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
author: David S. Miller <davem@davemloft.net> 2018-12-19 17:36:18 +0100
committer: David S. Miller <davem@davemloft.net> 2018-12-19 17:36:18 +0100
commit: 5a862f86b8e86562fc8532160c5530a13e1e944b (patch)
tree: 0fa13538752825a01dc98c34dc175271c9341815 /net
parent: net: ethernet: don't set phylib state CHANGELINK in drivers (diff)
parent: mac80211: Properly access radiotap vendor data (diff)
download: linux-5a862f86b8e86562fc8532160c5530a13e1e944b.tar.xz
linux-5a862f86b8e86562fc8532160c5530a13e1e944b.zip
31 files changed, 1330 insertions, 148 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index f869e35d0974..be471fe95048 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -57,14 +57,13 @@ comment "Some wireless drivers require a rate control algorithm"
 	depends on MAC80211 && MAC80211_HAS_RC=n
 
 config MAC80211_MESH
-	bool "Enable mac80211 mesh networking (pre-802.11s) support"
+	bool "Enable mac80211 mesh networking support"
 	depends on MAC80211
 	---help---
-	 This options enables support of Draft 802.11s mesh networking.
-	 The implementation is based on Draft 2.08 of the Mesh Networking
-	 amendment.  However, no compliance with that draft is claimed or even
-	 possible, as drafts leave a number of identifiers to be defined after
-	 ratification.  For more information visit http://o11s.org/.
+	  Select this option to enable 802.11 mesh operation in mac80211
+	  drivers that support it.  802.11 mesh connects multiple stations
+	  over (possibly multi-hop) wireless links to form a single logical
+	  LAN.
 
 config MAC80211_LEDS
 	bool "Enable LED triggers"
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 818aa0060349..de65fe3ed9cc 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -800,8 +800,8 @@ static int ieee80211_set_ftm_responder_params(
 	u8 *pos;
 	int len;
 
-	if ((!lci || !lci_len) && (!civicloc || !civicloc_len))
-		return 1;
+	if (!lci_len && !civicloc_len)
+		return 0;
 
 	bss_conf = &sdata->vif.bss_conf;
 	old = bss_conf->ftmr_params;
@@ -2028,6 +2028,9 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 			nconf->dot11MeshAwakeWindowDuration;
 	if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
 		conf->plink_timeout = nconf->plink_timeout;
+	if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
+		conf->dot11MeshConnectedToMeshGate =
+			nconf->dot11MeshConnectedToMeshGate;
 	ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
 	return 0;
 }
@@ -3850,6 +3853,26 @@ ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
 	return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
 }
 
+static int
+ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
+		     struct cfg80211_pmsr_request *request)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
+
+	return drv_start_pmsr(local, sdata, request);
+}
+
+static void
+ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
+		     struct cfg80211_pmsr_request *request)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
+
+	return drv_abort_pmsr(local, sdata, request);
+}
+
 const struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -3945,4 +3968,6 @@ const struct cfg80211_ops mac80211_config_ops = {
 	.tx_control_port = ieee80211_tx_control_port,
 	.get_txq_stats = ieee80211_get_txq_stats,
 	.get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
+	.start_pmsr = ieee80211_start_pmsr,
+	.abort_pmsr = ieee80211_abort_pmsr,
 };
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index c813207bb123..cff0fb3578c9 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -641,6 +641,8 @@ IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
 		  u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
+IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
+		  u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
 #endif
 
 #define DEBUGFS_ADD_MODE(name, mode) \
@@ -762,6 +764,7 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
 	MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
 	MESHPARAMS_ADD(power_mode);
 	MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
+	MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
 #undef MESHPARAMS_ADD
 }
 #endif
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index af5185a836e5..b753194710ad 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -795,22 +795,22 @@ static ssize_t sta_he_capa_read(struct file *file, char __user *userbuf,
 
 #define PRINT_NSS_SUPP(f, n)						\
 	do {								\
-		int i;							\
+		int _i;							\
 		u16 v = le16_to_cpu(nss->f);				\
 		p += scnprintf(p, buf_sz + buf - p, n ": %#.4x\n", v);	\
-		for (i = 0; i < 8; i += 2) {				\
-			switch ((v >> i) & 0x3) {			\
+		for (_i = 0; _i < 8; _i += 2) {				\
+			switch ((v >> _i) & 0x3) {			\
 			case 0:						\
-				PRINT(n "-%d-SUPPORT-0-7", i / 2);	\
+				PRINT(n "-%d-SUPPORT-0-7", _i / 2);	\
 				break;					\
 			case 1:						\
-				PRINT(n "-%d-SUPPORT-0-9", i / 2);	\
+				PRINT(n "-%d-SUPPORT-0-9", _i / 2);	\
 				break;					\
 			case 2:						\
-				PRINT(n "-%d-SUPPORT-0-11", i / 2);	\
+				PRINT(n "-%d-SUPPORT-0-11", _i / 2);	\
 				break;					\
 			case 3:						\
-				PRINT(n "-%d-NOT-SUPPORTED", i / 2);	\
+				PRINT(n "-%d-NOT-SUPPORTED", _i / 2);	\
 				break;					\
 			}						\
 		}							\
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 0b1747a2313d..3e0d5922a440 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1199,6 +1199,40 @@ drv_get_ftm_responder_stats(struct ieee80211_local *local,
 	return ret;
 }
 
+static inline int drv_start_pmsr(struct ieee80211_local *local,
+				 struct ieee80211_sub_if_data *sdata,
+				 struct cfg80211_pmsr_request *request)
+{
+	int ret = -EOPNOTSUPP;
+
+	might_sleep();
+	if (!check_sdata_in_driver(sdata))
+		return -EIO;
+
+	trace_drv_start_pmsr(local, sdata);
+
+	if (local->ops->start_pmsr)
+		ret = local->ops->start_pmsr(&local->hw, &sdata->vif, request);
+	trace_drv_return_int(local, ret);
+
+	return ret;
+}
+
+static inline void drv_abort_pmsr(struct ieee80211_local *local,
+				  struct ieee80211_sub_if_data *sdata,
+				  struct cfg80211_pmsr_request *request)
+{
+	trace_drv_abort_pmsr(local, sdata);
+
+	might_sleep();
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	if (local->ops->abort_pmsr)
+		local->ops->abort_pmsr(&local->hw, &sdata->vif, request);
+	trace_drv_return_void(local);
+}
+
 static inline int drv_start_nan(struct ieee80211_local *local,
 				struct ieee80211_sub_if_data *sdata,
 				struct cfg80211_nan_conf *conf)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 10a05062e4a0..7dfb4e2f98b2 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -500,6 +500,7 @@ struct ieee80211_if_managed {
 	unsigned int uapsd_max_sp_len;
 
 	int wmm_last_param_set;
+	int mu_edca_last_param_set;
 
 	u8 use_4addr;
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 5f3c81e705c7..e9652e623a31 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1801,7 +1801,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 		}
 
 		ieee80211_assign_perm_addr(local, ndev->perm_addr, type);
-		if (params && is_valid_ether_addr(params->macaddr))
+		if (is_valid_ether_addr(params->macaddr))
 			memcpy(ndev->dev_addr, params->macaddr, ETH_ALEN);
 		else
 			memcpy(ndev->dev_addr, ndev->perm_addr, ETH_ALEN);
@@ -1870,11 +1870,9 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 	ieee80211_setup_sdata(sdata, type);
 
 	if (ndev) {
-		if (params) {
-			ndev->ieee80211_ptr->use_4addr = params->use_4addr;
-			if (type == NL80211_IFTYPE_STATION)
-				sdata->u.mgd.use_4addr = params->use_4addr;
-		}
+		ndev->ieee80211_ptr->use_4addr = params->use_4addr;
+		if (type == NL80211_IFTYPE_STATION)
+			sdata->u.mgd.use_4addr = params->use_4addr;
 
 		ndev->features |= local->hw.netdev_features;
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 83e71e6b2ebe..ada8e16d52d2 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1221,8 +1221,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	/* add one default STA interface if supported */
 	if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) &&
 	    !ieee80211_hw_check(hw, NO_AUTO_VIF)) {
+		struct vif_params params = {0};
+
 		result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL,
-					  NL80211_IFTYPE_STATION, NULL);
+					  NL80211_IFTYPE_STATION, &params);
 		if (result)
 			wiphy_warn(local->hw.wiphy,
 				   "Failed to add default virtual iface\n");
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 8bad414c52ad..c90452aa0c42 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -254,6 +254,9 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	u8 *pos, neighbors;
 	u8 meshconf_len = sizeof(struct ieee80211_meshconf_ie);
+	bool is_connected_to_gate = ifmsh->num_gates > 0 ||
+		ifmsh->mshcfg.dot11MeshGateAnnouncementProtocol ||
+		ifmsh->mshcfg.dot11MeshConnectedToMeshGate;
 
 	if (skb_tailroom(skb) < 2 + meshconf_len)
 		return -ENOMEM;
@@ -278,7 +281,7 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
 	/* Mesh Formation Info - number of neighbors */
 	neighbors = atomic_read(&ifmsh->estab_plinks);
 	neighbors = min_t(int, neighbors, IEEE80211_MAX_MESH_PEERINGS);
-	*pos++ = neighbors << 1;
+	*pos++ = (neighbors << 1) | is_connected_to_gate;
 	/* Mesh capability */
 	*pos = 0x00;
 	*pos |= ifmsh->mshcfg.dot11MeshForwarding ?
@@ -1191,7 +1194,8 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 		if (!sdata->u.mesh.user_mpm ||
 		    sdata->u.mesh.mshcfg.rssi_threshold == 0 ||
 		    sdata->u.mesh.mshcfg.rssi_threshold < rx_status->signal)
-			mesh_neighbour_update(sdata, mgmt->sa, &elems);
+			mesh_neighbour_update(sdata, mgmt->sa, &elems,
+					      rx_status);
 	}
 
 	if (ifmsh->sync_ops)
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 21526630bf65..cad6592c52a1 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -273,7 +273,8 @@ int mesh_gate_num(struct ieee80211_sub_if_data *sdata);
 
 /* Mesh plinks */
 void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
-			   u8 *hw_addr, struct ieee802_11_elems *ie);
+			   u8 *hw_addr, struct ieee802_11_elems *ie,
+			   struct ieee80211_rx_status *rx_status);
 bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie);
 u32 mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
 void mesh_plink_timer(struct timer_list *t);
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 5b5b0f95ffd1..33055c8ed37e 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -513,7 +513,8 @@ __mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *hw_addr)
 
 static struct sta_info *
 mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *addr,
-		    struct ieee802_11_elems *elems)
+		    struct ieee802_11_elems *elems,
+		    struct ieee80211_rx_status *rx_status)
 {
 	struct sta_info *sta = NULL;
 
@@ -521,11 +522,17 @@ mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *addr,
 	if (sdata->u.mesh.user_mpm ||
 	    sdata->u.mesh.security & IEEE80211_MESH_SEC_AUTHED) {
 		if (mesh_peer_accepts_plinks(elems) &&
-		    mesh_plink_availables(sdata))
+		    mesh_plink_availables(sdata)) {
+			int sig = 0;
+
+			if (ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
+				sig = rx_status->signal;
+
 			cfg80211_notify_new_peer_candidate(sdata->dev, addr,
 							   elems->ie_start,
 							   elems->total_len,
-							   GFP_KERNEL);
+							   sig, GFP_KERNEL);
+		}
 	} else
 		sta = __mesh_sta_info_alloc(sdata, addr);
 
@@ -538,13 +545,15 @@ mesh_sta_info_alloc(struct ieee80211_sub_if_data *sdata, u8 *addr,
  * @sdata: local meshif
  * @addr: peer's address
  * @elems: IEs from beacon or mesh peering frame.
+ * @rx_status: rx status for the frame for signal reporting
  *
  * Return existing or newly allocated sta_info under RCU read lock.
  * (re)initialize with given IEs.
  */
 static struct sta_info *
 mesh_sta_info_get(struct ieee80211_sub_if_data *sdata,
-		  u8 *addr, struct ieee802_11_elems *elems) __acquires(RCU)
+		  u8 *addr, struct ieee802_11_elems *elems,
+		  struct ieee80211_rx_status *rx_status) __acquires(RCU)
 {
 	struct sta_info *sta = NULL;
 
@@ -555,7 +564,7 @@ mesh_sta_info_get(struct ieee80211_sub_if_data *sdata,
 	} else {
 		rcu_read_unlock();
 		/* can't run atomic */
-		sta = mesh_sta_info_alloc(sdata, addr, elems);
+		sta = mesh_sta_info_alloc(sdata, addr, elems, rx_status);
 		if (!sta) {
 			rcu_read_lock();
 			return NULL;
@@ -576,20 +585,25 @@ mesh_sta_info_get(struct ieee80211_sub_if_data *sdata,
  * @sdata: local meshif
  * @addr: peer's address
  * @elems: IEs from beacon or mesh peering frame
+ * @rx_status: rx status for the frame for signal reporting
  *
  * Initiates peering if appropriate.
  */
 void mesh_neighbour_update(struct ieee80211_sub_if_data *sdata,
 			   u8 *hw_addr,
-			   struct ieee802_11_elems *elems)
+			   struct ieee802_11_elems *elems,
+			   struct ieee80211_rx_status *rx_status)
 {
 	struct sta_info *sta;
 	u32 changed = 0;
 
-	sta = mesh_sta_info_get(sdata, hw_addr, elems);
+	sta = mesh_sta_info_get(sdata, hw_addr, elems, rx_status);
 	if (!sta)
 		goto out;
 
+	sta->mesh->connected_to_gate = elems->mesh_config->meshconf_form &
+		IEEE80211_MESHCONF_FORM_CONNECTED_TO_GATE;
+
 	if (mesh_peer_accepts_plinks(elems) &&
 	    sta->mesh->plink_state == NL80211_PLINK_LISTEN &&
 	    sdata->u.mesh.accepting_plinks &&
@@ -1069,7 +1083,8 @@ out:
 static void
 mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
 			 struct ieee80211_mgmt *mgmt,
-			 struct ieee802_11_elems *elems)
+			 struct ieee802_11_elems *elems,
+			 struct ieee80211_rx_status *rx_status)
 {
 
 	struct sta_info *sta;
@@ -1134,7 +1149,7 @@ mesh_process_plink_frame(struct ieee80211_sub_if_data *sdata,
 	if (event == OPN_ACPT) {
 		rcu_read_unlock();
 		/* allocate sta entry if necessary and update info */
-		sta = mesh_sta_info_get(sdata, mgmt->sa, elems);
+		sta = mesh_sta_info_get(sdata, mgmt->sa, elems, rx_status);
 		if (!sta) {
 			mpl_dbg(sdata, "Mesh plink: failed to init peer!\n");
 			goto unlock_rcu;
@@ -1200,5 +1215,5 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
 			return;
 	}
 	ieee802_11_parse_elems(baseaddr, len - baselen, true, &elems);
-	mesh_process_plink_frame(sdata, mgmt, &elems);
+	mesh_process_plink_frame(sdata, mgmt, &elems, rx_status);
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index bcf5ffc1567a..687821567287 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -916,6 +916,15 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 		ieee80211_add_vht_ie(sdata, skb, sband,
 				     &assoc_data->ap_vht_cap);
 
+	/*
+	 * If AP doesn't support HT, mark HE as disabled.
+	 * If on the 5GHz band, make sure it supports VHT.
+	 */
+	if (ifmgd->flags & IEEE80211_STA_DISABLE_HT ||
+	    (sband->band == NL80211_BAND_5GHZ &&
+	     ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
+		ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
+
 	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE))
 		ieee80211_add_he_ie(sdata, skb, sband);
 
@@ -1869,7 +1878,7 @@ ieee80211_sta_wmm_params(struct ieee80211_local *local,
 	struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS];
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	size_t left;
-	int count, ac;
+	int count, mu_edca_count, ac;
 	const u8 *pos;
 	u8 uapsd_queues = 0;
 
@@ -1889,9 +1898,16 @@ ieee80211_sta_wmm_params(struct ieee80211_local *local,
 		uapsd_queues = ifmgd->uapsd_queues;
 
 	count = wmm_param[6] & 0x0f;
-	if (count == ifmgd->wmm_last_param_set)
+	/* -1 is the initial value of ifmgd->mu_edca_last_param_set.
+	 * if mu_edca was preset before and now it disappeared tell
+	 * the driver about it.
+	 */
+	mu_edca_count = mu_edca ? mu_edca->mu_qos_info & 0x0f : -1;
+	if (count == ifmgd->wmm_last_param_set &&
+	    mu_edca_count == ifmgd->mu_edca_last_param_set)
 		return false;
 	ifmgd->wmm_last_param_set = count;
+	ifmgd->mu_edca_last_param_set = mu_edca_count;
 
 	pos = wmm_param + 8;
 	left = wmm_param_len - 8;
@@ -3062,6 +3078,19 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
 	}
 }
 
+static bool ieee80211_twt_req_supported(const struct sta_info *sta,
+					const struct ieee802_11_elems *elems)
+{
+	if (elems->ext_capab_len < 10)
+		return false;
+
+	if (!(elems->ext_capab[9] & WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT))
+		return false;
+
+	return sta->sta.he_cap.he_cap_elem.mac_cap_info[0] &
+		IEEE80211_HE_MAC_CAP0_TWT_RES;
+}
+
 static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 				    struct cfg80211_bss *cbss,
 				    struct ieee80211_mgmt *mgmt, size_t len)
@@ -3215,16 +3244,6 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 		goto out;
 	}
 
-	/*
-	 * If AP doesn't support HT, or it doesn't have HE mandatory IEs, mark
-	 * HE as disabled. If on the 5GHz band, make sure it supports VHT.
-	 */
-	if (ifmgd->flags & IEEE80211_STA_DISABLE_HT ||
-	    (sband->band == NL80211_BAND_5GHZ &&
-	     ifmgd->flags & IEEE80211_STA_DISABLE_VHT) ||
-	    (!elems.he_cap && !elems.he_operation))
-		ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
-
 	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
 	    (!elems.he_cap || !elems.he_operation)) {
 		mutex_unlock(&sdata->local->sta_mtx);
@@ -3251,8 +3270,11 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 						  sta);
 
 		bss_conf->he_support = sta->sta.he_cap.has_he;
+		bss_conf->twt_requester =
+			ieee80211_twt_req_supported(sta, &elems);
 	} else {
 		bss_conf->he_support = false;
+		bss_conf->twt_requester = false;
 	}
 
 	if (bss_conf->he_support) {
@@ -3337,6 +3359,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	 * 4-bit value.
 	 */
 	ifmgd->wmm_last_param_set = -1;
+	ifmgd->mu_edca_last_param_set = -1;
 
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_WMM) {
 		ieee80211_set_wmm_default(sdata, false, false);
@@ -4660,8 +4683,10 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) &&
-	    ieee80211_get_he_sta_cap(sband)) {
+	if (!ieee80211_get_he_sta_cap(sband))
+		ifmgd->flags |= IEEE80211_STA_DISABLE_HE;
+
+	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) {
 		const struct cfg80211_bss_ies *ies;
 		const u8 *he_oper_ie;
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 428f7ad5f9b5..45aad3d3108c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -143,6 +143,9 @@ ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local,
 	/* allocate extra bitmaps */
 	if (status->chains)
 		len += 4 * hweight8(status->chains);
+	/* vendor presence bitmap */
+	if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA)
+		len += 4;
 
 	if (ieee80211_have_rx_timestamp(status)) {
 		len = ALIGN(len, 8);
@@ -207,8 +210,6 @@ ieee80211_rx_radiotap_hdrlen(struct ieee80211_local *local,
 	if (status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
 		struct ieee80211_vendor_radiotap *rtap = (void *)skb->data;
 
-		/* vendor presence bitmap */
-		len += 4;
 		/* alignment for fixed 6-byte vendor data header */
 		len = ALIGN(len, 2);
 		/* vendor data header */
@@ -753,6 +754,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	struct ieee80211_sub_if_data *monitor_sdata =
 		rcu_dereference(local->monitor_sdata);
 	bool only_monitor = false;
+	unsigned int min_head_len;
 
 	if (status->flag & RX_FLAG_RADIOTAP_HE)
 		rtap_space += sizeof(struct ieee80211_radiotap_he);
@@ -760,12 +762,18 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	if (status->flag & RX_FLAG_RADIOTAP_HE_MU)
 		rtap_space += sizeof(struct ieee80211_radiotap_he_mu);
 
+	if (status->flag & RX_FLAG_RADIOTAP_LSIG)
+		rtap_space += sizeof(struct ieee80211_radiotap_lsig);
+
 	if (unlikely(status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA)) {
-		struct ieee80211_vendor_radiotap *rtap = (void *)origskb->data;
+		struct ieee80211_vendor_radiotap *rtap =
+			(void *)(origskb->data + rtap_space);
 
 		rtap_space += sizeof(*rtap) + rtap->len + rtap->pad;
 	}
 
+	min_head_len = rtap_space;
+
 	/*
 	 * First, we may need to make a copy of the skb because
 	 *  (1) we need to modify it for radiotap (if not present), and
@@ -775,18 +783,23 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 	 * the SKB because it has a bad FCS/PLCP checksum.
 	 */
 
-	if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) {
-		if (unlikely(origskb->len <= FCS_LEN)) {
-			/* driver bug */
-			WARN_ON(1);
-			dev_kfree_skb(origskb);
-			return NULL;
+	if (!(status->flag & RX_FLAG_NO_PSDU)) {
+		if (ieee80211_hw_check(&local->hw, RX_INCLUDES_FCS)) {
+			if (unlikely(origskb->len <= FCS_LEN + rtap_space)) {
+				/* driver bug */
+				WARN_ON(1);
+				dev_kfree_skb(origskb);
+				return NULL;
+			}
+			present_fcs_len = FCS_LEN;
 		}
-		present_fcs_len = FCS_LEN;
+
+		/* also consider the hdr->frame_control */
+		min_head_len += 2;
 	}
 
-	/* ensure hdr->frame_control and vendor radiotap data are in skb head */
-	if (!pskb_may_pull(origskb, 2 + rtap_space)) {
+	/* ensure that the expected data elements are in skb head */
+	if (!pskb_may_pull(origskb, min_head_len)) {
 		dev_kfree_skb(origskb);
 		return NULL;
 	}
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 5d2a11777718..95413413f98c 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -356,7 +356,7 @@ static bool ieee80211_prep_hw_scan(struct ieee80211_local *local)
 static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	bool hw_scan = local->ops->hw_scan;
+	bool hw_scan = test_bit(SCAN_HW_SCANNING, &local->scanning);
 	bool was_scanning = local->scanning;
 	struct cfg80211_scan_request *scan_req;
 	struct ieee80211_sub_if_data *scan_sdata;
@@ -606,6 +606,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 				  struct cfg80211_scan_request *req)
 {
 	struct ieee80211_local *local = sdata->local;
+	bool hw_scan = local->ops->hw_scan;
 	int rc;
 
 	lockdep_assert_held(&local->mtx);
@@ -620,7 +621,8 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 		return 0;
 	}
 
-	if (local->ops->hw_scan) {
+ again:
+	if (hw_scan) {
 		u8 *ies;
 
 		local->hw_scan_ies_bufsize = local->scan_ies_len + req->ie_len;
@@ -679,7 +681,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 	else
 		memcpy(local->scan_addr, sdata->vif.addr, ETH_ALEN);
 
-	if (local->ops->hw_scan) {
+	if (hw_scan) {
 		__set_bit(SCAN_HW_SCANNING, &local->scanning);
 	} else if ((req->n_channels == 1) &&
 		   (req->channels[0] == local->_oper_chandef.chan)) {
@@ -722,7 +724,7 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_recalc_idle(local);
 
-	if (local->ops->hw_scan) {
+	if (hw_scan) {
 		WARN_ON(!ieee80211_prep_hw_scan(local));
 		rc = drv_hw_scan(local, sdata, local->hw_scan_req);
 	} else {
@@ -740,6 +742,18 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
 		RCU_INIT_POINTER(local->scan_sdata, NULL);
 	}
 
+	if (hw_scan && rc == 1) {
+		/*
+		 * we can't fall back to software for P2P-GO
+		 * as it must update NoA etc.
+		 */
+		if (ieee80211_vif_type_p2p(&sdata->vif) ==
+				NL80211_IFTYPE_P2P_GO)
+			return -EOPNOTSUPP;
+		hw_scan = false;
+		goto again;
+	}
+
 	return rc;
 }
 
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index fb8c2252ac0e..c4a8f115ed33 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2253,11 +2253,8 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo,
 	}
 
 	if (tidstats && !cfg80211_sinfo_alloc_tid_stats(sinfo, GFP_KERNEL)) {
-		for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) {
-			struct cfg80211_tid_stats *tidstats = &sinfo->pertid[i];
-
-			sta_set_tidstats(sta, tidstats, i);
-		}
+		for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++)
+			sta_set_tidstats(sta, &sinfo->pertid[i], i);
 	}
 
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
@@ -2267,7 +2264,8 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo,
 				 BIT_ULL(NL80211_STA_INFO_PLINK_STATE) |
 				 BIT_ULL(NL80211_STA_INFO_LOCAL_PM) |
 				 BIT_ULL(NL80211_STA_INFO_PEER_PM) |
-				 BIT_ULL(NL80211_STA_INFO_NONPEER_PM);
+				 BIT_ULL(NL80211_STA_INFO_NONPEER_PM) |
+				 BIT_ULL(NL80211_STA_INFO_CONNECTED_TO_GATE);
 
 		sinfo->llid = sta->mesh->llid;
 		sinfo->plid = sta->mesh->plid;
@@ -2279,6 +2277,7 @@ void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo,
 		sinfo->local_pm = sta->mesh->local_pm;
 		sinfo->peer_pm = sta->mesh->peer_pm;
 		sinfo->nonpeer_pm = sta->mesh->nonpeer_pm;
+		sinfo->connected_to_gate = sta->mesh->connected_to_gate;
 #endif
 	}
 
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 9a04327d71d1..8eb29041be54 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -364,6 +364,7 @@ DECLARE_EWMA(mesh_fail_avg, 20, 8)
  * @nonpeer_pm: STA power save mode towards non-peer neighbors
  * @processed_beacon: set to true after peer rates and capabilities are
  *	processed
+ * @connected_to_gate: true if mesh STA has a path to a mesh gate
  * @fail_avg: moving percentage of failed MSDUs
  */
 struct mesh_sta {
@@ -381,6 +382,7 @@ struct mesh_sta {
 	u8 plink_retries;
 
 	bool processed_beacon;
+	bool connected_to_gate;
 
 	enum nl80211_plink_state plink_state;
 	u32 plink_timeout;
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 588c51a67c89..35ea0dcb55e6 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1052,10 +1052,10 @@ TRACE_EVENT(drv_ampdu_action,
 );
 
 TRACE_EVENT(drv_get_survey,
-	TP_PROTO(struct ieee80211_local *local, int idx,
+	TP_PROTO(struct ieee80211_local *local, int _idx,
 		 struct survey_info *survey),
 
-	TP_ARGS(local, idx, survey),
+	TP_ARGS(local, _idx, survey),
 
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
@@ -1064,7 +1064,7 @@ TRACE_EVENT(drv_get_survey,
 
 	TP_fast_assign(
 		LOCAL_ASSIGN;
-		__entry->idx = idx;
+		__entry->idx = _idx;
 	),
 
 	TP_printk(
@@ -1882,6 +1882,18 @@ TRACE_EVENT(drv_del_nan_func,
 	)
 );
 
+DEFINE_EVENT(local_sdata_evt, drv_start_pmsr,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata),
+	TP_ARGS(local, sdata)
+);
+
+DEFINE_EVENT(local_sdata_evt, drv_abort_pmsr,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata),
+	TP_ARGS(local, sdata)
+);
+
 /*
  * Tracing for API calls that drivers call.
  */
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1f536ba573b4..f170d6c6629a 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3218,6 +3218,9 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	if (!ieee80211_hw_check(&local->hw, TX_AMSDU))
 		return false;
 
+	if (skb_is_gso(skb))
+		return false;
+
 	if (!txq)
 		return false;
 
@@ -3242,7 +3245,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	tin = &txqi->tin;
 	flow = fq_flow_classify(fq, tin, skb, fq_flow_get_default_func);
 	head = skb_peek_tail(&flow->queue);
-	if (!head)
+	if (!head || skb_is_gso(head))
 		goto out;
 
 	orig_len = head->len;
@@ -3583,7 +3586,7 @@ begin:
 			skb_queue_splice_tail(&tx.skbs, &txqi->frags);
 	}
 
-	if (skb && skb_has_frag_list(skb) &&
+	if (skb_has_frag_list(skb) &&
 	    !ieee80211_hw_check(&local->hw, TX_FRAG_LIST)) {
 		if (skb_linearize(skb)) {
 			ieee80211_free_txskb(&local->hw, skb);
@@ -4579,7 +4582,7 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
 					      IEEE80211_STYPE_NULLFUNC |
 					      IEEE80211_FCTL_TODS);
 	if (qos) {
-		__le16 qos = cpu_to_le16(7);
+		__le16 qoshdr = cpu_to_le16(7);
 
 		BUILD_BUG_ON((IEEE80211_STYPE_QOS_NULLFUNC |
 			      IEEE80211_STYPE_NULLFUNC) !=
@@ -4588,7 +4591,7 @@ struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw,
 			cpu_to_le16(IEEE80211_STYPE_QOS_NULLFUNC);
 		skb->priority = 7;
 		skb_set_queue_mapping(skb, IEEE80211_AC_VO);
-		skb_put_data(skb, &qos, sizeof(qos));
+		skb_put_data(skb, &qoshdr, sizeof(qoshdr));
 	}
 
 	memcpy(nullfunc->addr1, ifmgd->bssid, ETH_ALEN);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index bec424316ea4..d0eb38b890aa 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -299,16 +299,16 @@ out:
 	spin_unlock_bh(&fq->lock);
 }
 
-void ieee80211_wake_txqs(unsigned long data)
+static void
+__releases(&local->queue_stop_reason_lock)
+__acquires(&local->queue_stop_reason_lock)
+_ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags)
 {
-	struct ieee80211_local *local = (struct ieee80211_local *)data;
 	struct ieee80211_sub_if_data *sdata;
 	int n_acs = IEEE80211_NUM_ACS;
-	unsigned long flags;
 	int i;
 
 	rcu_read_lock();
-	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 
 	if (local->hw.queues < IEEE80211_NUM_ACS)
 		n_acs = 1;
@@ -317,7 +317,7 @@ void ieee80211_wake_txqs(unsigned long data)
 		if (local->queue_stop_reasons[i])
 			continue;
 
-		spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+		spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags);
 		list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 			int ac;
 
@@ -329,13 +329,22 @@ void ieee80211_wake_txqs(unsigned long data)
 					__ieee80211_wake_txqs(sdata, ac);
 			}
 		}
-		spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+		spin_lock_irqsave(&local->queue_stop_reason_lock, *flags);
 	}
 
-	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 	rcu_read_unlock();
 }
 
+void ieee80211_wake_txqs(unsigned long data)
+{
+	struct ieee80211_local *local = (struct ieee80211_local *)data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	_ieee80211_wake_txqs(local, &flags);
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue)
 {
 	struct ieee80211_sub_if_data *sdata;
@@ -371,7 +380,8 @@ void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue)
 
 static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 				   enum queue_stop_reason reason,
-				   bool refcounted)
+				   bool refcounted,
+				   unsigned long *flags)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
@@ -405,8 +415,19 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 	} else
 		tasklet_schedule(&local->tx_pending_tasklet);
 
-	if (local->ops->wake_tx_queue)
-		tasklet_schedule(&local->wake_txqs_tasklet);
+	/*
+	 * Calling _ieee80211_wake_txqs here can be a problem because it may
+	 * release queue_stop_reason_lock which has been taken by
+	 * __ieee80211_wake_queue's caller. It is certainly not very nice to
+	 * release someone's lock, but it is fine because all the callers of
+	 * __ieee80211_wake_queue call it right before releasing the lock.
+	 */
+	if (local->ops->wake_tx_queue) {
+		if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER)
+			tasklet_schedule(&local->wake_txqs_tasklet);
+		else
+			_ieee80211_wake_txqs(local, flags);
+	}
 }
 
 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
@@ -417,7 +438,7 @@ void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
 	unsigned long flags;
 
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
-	__ieee80211_wake_queue(hw, queue, reason, refcounted);
+	__ieee80211_wake_queue(hw, queue, reason, refcounted, &flags);
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 }
 
@@ -514,7 +535,7 @@ void ieee80211_add_pending_skb(struct ieee80211_local *local,
 			       false);
 	__skb_queue_tail(&local->pending[queue], skb);
 	__ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
-			       false);
+			       false, &flags);
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 }
 
@@ -547,7 +568,7 @@ void ieee80211_add_pending_skbs(struct ieee80211_local *local,
 	for (i = 0; i < hw->queues; i++)
 		__ieee80211_wake_queue(hw, i,
 			IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
-			false);
+			false, &flags);
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 }
 
@@ -605,7 +626,7 @@ void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 
 	for_each_set_bit(i, &queues, hw->queues)
-		__ieee80211_wake_queue(hw, i, reason, refcounted);
+		__ieee80211_wake_queue(hw, i, reason, refcounted, &flags);
 
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 }
@@ -1202,6 +1223,8 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 			if (pos[0] == WLAN_EID_EXT_HE_MU_EDCA &&
 			    elen >= (sizeof(*elems->mu_edca_param_set) + 1)) {
 				elems->mu_edca_param_set = (void *)&pos[1];
+				if (calc_crc)
+					crc = crc32_be(crc, pos - 2, elen + 2);
 			} else if (pos[0] == WLAN_EID_EXT_HE_CAPABILITY) {
 				elems->he_cap = (void *)&pos[1];
 				elems->he_cap_len = elen - 1;
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 0f8465852254..41a5cd4b5c0e 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -16,7 +16,6 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
-#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 1d84f91bbfb0..72a224ce8e0a 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_WEXT_PRIV) += wext-priv.o
 
 cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
 cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o trace.o ocb.o
+cfg80211-y += pmsr.o
 cfg80211-$(CONFIG_OF) += of.o
 cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
 cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 2db713d18f71..7dc1bbd0888f 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -6,6 +6,7 @@
  *
  * Copyright 2009	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
+ * Copyright 2018       Intel Corporation
  */
 
 #include <linux/export.h>
@@ -747,6 +748,7 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 	case NL80211_CHAN_WIDTH_20:
 		if (!ht_cap->ht_supported)
 			return false;
+		/* fall through */
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		prohibited_flags |= IEEE80211_CHAN_NO_20MHZ;
 		width = 20;
@@ -769,6 +771,7 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 		cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK;
 		if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ)
 			return false;
+		/* fall through */
 	case NL80211_CHAN_WIDTH_80:
 		if (!vht_cap->vht_supported)
 			return false;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 5bd01058b9e6..623dfe5e211c 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -4,6 +4,7 @@
  * Copyright 2006-2010		Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
  * Copyright 2015-2017	Intel Deutschland GmbH
+ * Copyright (C) 2018 Intel Corporation
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -190,11 +191,25 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
 		return err;
 	}
 
+	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
+		if (!wdev->netdev)
+			continue;
+		nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
+	}
+	nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
+
 	wiphy_net_set(&rdev->wiphy, net);
 
 	err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev));
 	WARN_ON(err);
 
+	nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
+	list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
+		if (!wdev->netdev)
+			continue;
+		nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
+	}
+
 	return 0;
 }
 
@@ -664,6 +679,34 @@ int wiphy_register(struct wiphy *wiphy)
 		return -EINVAL;
 #endif
 
+	if (WARN_ON(wiphy->pmsr_capa && !wiphy->pmsr_capa->ftm.supported))
+		return -EINVAL;
+
+	if (wiphy->pmsr_capa && wiphy->pmsr_capa->ftm.supported) {
+		if (WARN_ON(!wiphy->pmsr_capa->ftm.asap &&
+			    !wiphy->pmsr_capa->ftm.non_asap))
+			return -EINVAL;
+		if (WARN_ON(!wiphy->pmsr_capa->ftm.preambles ||
+			    !wiphy->pmsr_capa->ftm.bandwidths))
+			return -EINVAL;
+		if (WARN_ON(wiphy->pmsr_capa->ftm.preambles &
+				~(BIT(NL80211_PREAMBLE_LEGACY) |
+				  BIT(NL80211_PREAMBLE_HT) |
+				  BIT(NL80211_PREAMBLE_VHT) |
+				  BIT(NL80211_PREAMBLE_DMG))))
+			return -EINVAL;
+		if (WARN_ON(wiphy->pmsr_capa->ftm.bandwidths &
+				~(BIT(NL80211_CHAN_WIDTH_20_NOHT) |
+				  BIT(NL80211_CHAN_WIDTH_20) |
+				  BIT(NL80211_CHAN_WIDTH_40) |
+				  BIT(NL80211_CHAN_WIDTH_80) |
+				  BIT(NL80211_CHAN_WIDTH_80P80) |
+				  BIT(NL80211_CHAN_WIDTH_160) |
+				  BIT(NL80211_CHAN_WIDTH_5) |
+				  BIT(NL80211_CHAN_WIDTH_10))))
+			return -EINVAL;
+	}
+
 	/*
 	 * if a wiphy has unsupported modes for regulatory channel enforcement,
 	 * opt-out of enforcement checking
@@ -1087,6 +1130,8 @@ void __cfg80211_leave(struct cfg80211_registered_device *rdev,
 	ASSERT_RTNL();
 	ASSERT_WDEV_LOCK(wdev);
 
+	cfg80211_pmsr_wdev_down(wdev);
+
 	switch (wdev->iftype) {
 	case NL80211_IFTYPE_ADHOC:
 		__cfg80211_leave_ibss(rdev, dev, true);
@@ -1174,6 +1219,9 @@ void cfg80211_init_wdev(struct cfg80211_registered_device *rdev,
 	spin_lock_init(&wdev->event_lock);
 	INIT_LIST_HEAD(&wdev->mgmt_registrations);
 	spin_lock_init(&wdev->mgmt_registrations_lock);
+	INIT_LIST_HEAD(&wdev->pmsr_list);
+	spin_lock_init(&wdev->pmsr_lock);
+	INIT_WORK(&wdev->pmsr_free_wk, cfg80211_pmsr_free_wk);
 
 	/*
 	 * We get here also when the interface changes network namespaces,
diff --git a/net/wireless/core.h b/net/wireless/core.h
index c61dbba8bf47..c5d6f3418601 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -3,6 +3,7 @@
  * Wireless configuration interface internals.
  *
  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (C) 2018 Intel Corporation
  */
 #ifndef __NET_WIRELESS_CORE_H
 #define __NET_WIRELESS_CORE_H
@@ -530,4 +531,8 @@ void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
 
 void cfg80211_cqm_config_free(struct wireless_dev *wdev);
 
+void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
+void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
+void cfg80211_pmsr_free_wk(struct work_struct *work);
+
 #endif /* __NET_WIRELESS_CORE_H */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8d763725498c..10ec05589795 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -240,7 +240,63 @@ nl80211_ftm_responder_policy[NL80211_FTM_RESP_ATTR_MAX + 1] = {
 					     .len = U8_MAX },
 };
 
-static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
+static const struct nla_policy
+nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = {
+	[NL80211_PMSR_FTM_REQ_ATTR_ASAP] = { .type = NLA_FLAG },
+	[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE] = { .type = NLA_U32 },
+	[NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP] =
+		NLA_POLICY_MAX(NLA_U8, 15),
+	[NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD] = { .type = NLA_U16 },
+	[NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION] =
+		NLA_POLICY_MAX(NLA_U8, 15),
+	[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST] =
+		NLA_POLICY_MAX(NLA_U8, 15),
+	[NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES] = { .type = NLA_U8 },
+	[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI] = { .type = NLA_FLAG },
+	[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC] = { .type = NLA_FLAG },
+};
+
+static const struct nla_policy
+nl80211_pmsr_req_data_policy[NL80211_PMSR_TYPE_MAX + 1] = {
+	[NL80211_PMSR_TYPE_FTM] =
+		NLA_POLICY_NESTED(NL80211_PMSR_FTM_REQ_ATTR_MAX,
+				  nl80211_pmsr_ftm_req_attr_policy),
+};
+
+static const struct nla_policy
+nl80211_pmsr_req_attr_policy[NL80211_PMSR_REQ_ATTR_MAX + 1] = {
+	[NL80211_PMSR_REQ_ATTR_DATA] =
+		NLA_POLICY_NESTED(NL80211_PMSR_TYPE_MAX,
+				  nl80211_pmsr_req_data_policy),
+	[NL80211_PMSR_REQ_ATTR_GET_AP_TSF] = { .type = NLA_FLAG },
+};
+
+static const struct nla_policy
+nl80211_psmr_peer_attr_policy[NL80211_PMSR_PEER_ATTR_MAX + 1] = {
+	[NL80211_PMSR_PEER_ATTR_ADDR] = NLA_POLICY_ETH_ADDR,
+	/*
+	 * we could specify this again to be the top-level policy,
+	 * but that would open us up to recursion problems ...
+	 */
+	[NL80211_PMSR_PEER_ATTR_CHAN] = { .type = NLA_NESTED },
+	[NL80211_PMSR_PEER_ATTR_REQ] =
+		NLA_POLICY_NESTED(NL80211_PMSR_REQ_ATTR_MAX,
+				  nl80211_pmsr_req_attr_policy),
+	[NL80211_PMSR_PEER_ATTR_RESP] = { .type = NLA_REJECT },
+};
+
+static const struct nla_policy
+nl80211_pmsr_attr_policy[NL80211_PMSR_ATTR_MAX + 1] = {
+	[NL80211_PMSR_ATTR_MAX_PEERS] = { .type = NLA_REJECT },
+	[NL80211_PMSR_ATTR_REPORT_AP_TSF] = { .type = NLA_REJECT },
+	[NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR] = { .type = NLA_REJECT },
+	[NL80211_PMSR_ATTR_TYPE_CAPA] = { .type = NLA_REJECT },
+	[NL80211_PMSR_ATTR_PEERS] =
+		NLA_POLICY_NESTED_ARRAY(NL80211_PMSR_PEER_ATTR_MAX,
+					nl80211_psmr_peer_attr_policy),
+};
+
+const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 	[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
 	[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
 				      .len = 20-1 },
@@ -497,6 +553,10 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
 		.type = NLA_NESTED,
 		.validation_data = nl80211_ftm_responder_policy,
 	},
+	[NL80211_ATTR_TIMEOUT] = NLA_POLICY_MIN(NLA_U32, 1),
+	[NL80211_ATTR_PEER_MEASUREMENTS] =
+		NLA_POLICY_NESTED(NL80211_PMSR_FTM_REQ_ATTR_MAX,
+				  nl80211_pmsr_attr_policy),
 };
 
 /* policy for the key attributes */
@@ -637,9 +697,9 @@ nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
 	[NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
 };
 
-static int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
-				     struct cfg80211_registered_device **rdev,
-				     struct wireless_dev **wdev)
+int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
+			      struct cfg80211_registered_device **rdev,
+			      struct wireless_dev **wdev)
 {
 	int err;
 
@@ -684,8 +744,8 @@ static int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
 }
 
 /* message building helper */
-static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
-				   int flags, u8 cmd)
+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, portid, seq, &nl80211_fam, flags, cmd);
@@ -1615,6 +1675,91 @@ static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
 	return -ENOBUFS;
 }
 
+static int
+nl80211_send_pmsr_ftm_capa(const struct cfg80211_pmsr_capabilities *cap,
+			   struct sk_buff *msg)
+{
+	struct nlattr *ftm;
+
+	if (!cap->ftm.supported)
+		return 0;
+
+	ftm = nla_nest_start(msg, NL80211_PMSR_TYPE_FTM);
+	if (!ftm)
+		return -ENOBUFS;
+
+	if (cap->ftm.asap && nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_ASAP))
+		return -ENOBUFS;
+	if (cap->ftm.non_asap &&
+	    nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_NON_ASAP))
+		return -ENOBUFS;
+	if (cap->ftm.request_lci &&
+	    nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_REQ_LCI))
+		return -ENOBUFS;
+	if (cap->ftm.request_civicloc &&
+	    nla_put_flag(msg, NL80211_PMSR_FTM_CAPA_ATTR_REQ_CIVICLOC))
+		return -ENOBUFS;
+	if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_PREAMBLES,
+			cap->ftm.preambles))
+		return -ENOBUFS;
+	if (nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_BANDWIDTHS,
+			cap->ftm.bandwidths))
+		return -ENOBUFS;
+	if (cap->ftm.max_bursts_exponent >= 0 &&
+	    nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_BURSTS_EXPONENT,
+			cap->ftm.max_bursts_exponent))
+		return -ENOBUFS;
+	if (cap->ftm.max_ftms_per_burst &&
+	    nla_put_u32(msg, NL80211_PMSR_FTM_CAPA_ATTR_MAX_FTMS_PER_BURST,
+			cap->ftm.max_ftms_per_burst))
+		return -ENOBUFS;
+
+	nla_nest_end(msg, ftm);
+	return 0;
+}
+
+static int nl80211_send_pmsr_capa(struct cfg80211_registered_device *rdev,
+				  struct sk_buff *msg)
+{
+	const struct cfg80211_pmsr_capabilities *cap = rdev->wiphy.pmsr_capa;
+	struct nlattr *pmsr, *caps;
+
+	if (!cap)
+		return 0;
+
+	/*
+	 * we don't need to clean up anything here since the caller
+	 * will genlmsg_cancel() if we fail
+	 */
+
+	pmsr = nla_nest_start(msg, NL80211_ATTR_PEER_MEASUREMENTS);
+	if (!pmsr)
+		return -ENOBUFS;
+
+	if (nla_put_u32(msg, NL80211_PMSR_ATTR_MAX_PEERS, cap->max_peers))
+		return -ENOBUFS;
+
+	if (cap->report_ap_tsf &&
+	    nla_put_flag(msg, NL80211_PMSR_ATTR_REPORT_AP_TSF))
+		return -ENOBUFS;
+
+	if (cap->randomize_mac_addr &&
+	    nla_put_flag(msg, NL80211_PMSR_ATTR_RANDOMIZE_MAC_ADDR))
+		return -ENOBUFS;
+
+	caps = nla_nest_start(msg, NL80211_PMSR_ATTR_TYPE_CAPA);
+	if (!caps)
+		return -ENOBUFS;
+
+	if (nl80211_send_pmsr_ftm_capa(cap, msg))
+		return -ENOBUFS;
+
+	nla_nest_end(msg, caps);
+	nla_nest_end(msg, pmsr);
+
+	return 0;
+}
+
 struct nl80211_dump_wiphy_state {
 	s64 filter_wiphy;
 	long start;
@@ -1706,6 +1851,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 		state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 1:
 		if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
 			    sizeof(u32) * rdev->wiphy.n_cipher_suites,
@@ -1752,6 +1898,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 		state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 2:
 		if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
 					rdev->wiphy.interface_modes))
@@ -1759,6 +1906,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 		state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 3:
 		nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
 		if (!nl_bands)
@@ -1784,6 +1932,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 				state->chan_start++;
 				if (state->split)
 					break;
+				/* fall through */
 			default:
 				/* add frequencies */
 				nl_freqs = nla_nest_start(
@@ -1837,6 +1986,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 			state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 4:
 		nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
 		if (!nl_cmds)
@@ -1863,6 +2013,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 		state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 5:
 		if (rdev->ops->remain_on_channel &&
 		    (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
@@ -1880,6 +2031,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 		state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 6:
 #ifdef CONFIG_PM
 		if (nl80211_send_wowlan(msg, rdev, state->split))
@@ -1890,6 +2042,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 #else
 		state->split_start++;
 #endif
+		/* fall through */
 	case 7:
 		if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
 					rdev->wiphy.software_iftypes))
@@ -1902,6 +2055,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 		state->split_start++;
 		if (state->split)
 			break;
+		/* fall through */
 	case 8:
 		if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
 		    nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
@@ -2118,6 +2272,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
 				goto nla_put_failure;
 		}
 
+		state->split_start++;
+		break;
+	case 14:
+		if (nl80211_send_pmsr_capa(rdev, msg))
+			goto nla_put_failure;
+
 		/* done */
 		state->split_start = 0;
 		break;
@@ -2318,9 +2478,9 @@ static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
 		wdev->iftype == NL80211_IFTYPE_P2P_GO;
 }
 
-static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
-				 struct genl_info *info,
-				 struct cfg80211_chan_def *chandef)
+int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
+			  struct genl_info *info,
+			  struct cfg80211_chan_def *chandef)
 {
 	struct netlink_ext_ack *extack = info->extack;
 	struct nlattr **attrs = info->attrs;
@@ -2794,12 +2954,6 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 	return 0;
 }
 
-static inline u64 wdev_id(struct wireless_dev *wdev)
-{
-	return (u64)wdev->identifier |
-	       ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
-}
-
 static int nl80211_send_chandef(struct sk_buff *msg,
 				const struct cfg80211_chan_def *chandef)
 {
@@ -2832,14 +2986,15 @@ static int nl80211_send_chandef(struct sk_buff *msg,
 
 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
 			      struct cfg80211_registered_device *rdev,
-			      struct wireless_dev *wdev, bool removal)
+			      struct wireless_dev *wdev,
+			      enum nl80211_commands cmd)
 {
 	struct net_device *dev = wdev->netdev;
-	u8 cmd = NL80211_CMD_NEW_INTERFACE;
 	void *hdr;
 
-	if (removal)
-		cmd = NL80211_CMD_DEL_INTERFACE;
+	WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
+		cmd != NL80211_CMD_DEL_INTERFACE &&
+		cmd != NL80211_CMD_SET_INTERFACE);
 
 	hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
 	if (!hdr)
@@ -2987,7 +3142,8 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
 			}
 			if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
 					       cb->nlh->nlmsg_seq, NLM_F_MULTI,
-					       rdev, wdev, false) < 0) {
+					       rdev, wdev,
+					       NL80211_CMD_NEW_INTERFACE) < 0) {
 				goto out;
 			}
 			if_idx++;
@@ -3017,7 +3173,7 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
 		return -ENOMEM;
 
 	if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
-			       rdev, wdev, false) < 0) {
+			       rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
 	}
@@ -3207,6 +3363,12 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 	if (!err && params.use_4addr != -1)
 		dev->ieee80211_ptr->use_4addr = params.use_4addr;
 
+	if (change && !err) {
+		struct wireless_dev *wdev = dev->ieee80211_ptr;
+
+		nl80211_notify_iface(rdev, wdev, NL80211_CMD_SET_INTERFACE);
+	}
+
 	return err;
 }
 
@@ -3298,7 +3460,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
-			       rdev, wdev, false) < 0) {
+			       rdev, wdev, NL80211_CMD_NEW_INTERFACE) < 0) {
 		nlmsg_free(msg);
 		return -ENOBUFS;
 	}
@@ -4521,8 +4683,7 @@ static int parse_station_flags(struct genl_info *info,
 	return 0;
 }
 
-static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
-				 int attr)
+bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, int attr)
 {
 	struct nlattr *rate;
 	u32 bitrate;
@@ -4731,6 +4892,7 @@ static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
 	PUT_SINFO(LOCAL_PM, local_pm, u32);
 	PUT_SINFO(PEER_PM, peer_pm, u32);
 	PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
+	PUT_SINFO(CONNECTED_TO_GATE, connected_to_gate, u8);
 
 	if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_BSS_PARAM)) {
 		bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
@@ -6122,7 +6284,9 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
 	    nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
 			cur_params.dot11MeshAwakeWindowDuration) ||
 	    nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
-			cur_params.plink_timeout))
+			cur_params.plink_timeout) ||
+	    nla_put_u8(msg, NL80211_MESHCONF_CONNECTED_TO_GATE,
+		       cur_params.dot11MeshConnectedToMeshGate))
 		goto nla_put_failure;
 	nla_nest_end(msg, pinfoattr);
 	genlmsg_end(msg, hdr);
@@ -6179,6 +6343,7 @@ nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
 				 NL80211_MESH_POWER_MAX),
 	[NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
 	[NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
+	[NL80211_MESHCONF_CONNECTED_TO_GATE] = NLA_POLICY_RANGE(NLA_U8, 0, 1),
 };
 
 static const struct nla_policy
@@ -6290,6 +6455,9 @@ do {									\
 	FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, mask,
 				  NL80211_MESHCONF_RSSI_THRESHOLD,
 				  nla_get_s32);
+	FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConnectedToMeshGate, mask,
+				  NL80211_MESHCONF_CONNECTED_TO_GATE,
+				  nla_get_u8);
 	/*
 	 * Check HT operation mode based on
 	 * IEEE 802.11-2016 9.4.2.57 HT Operation element.
@@ -6855,8 +7023,8 @@ static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
 	return 0;
 }
 
-static int nl80211_parse_random_mac(struct nlattr **attrs,
-				    u8 *mac_addr, u8 *mac_addr_mask)
+int nl80211_parse_random_mac(struct nlattr **attrs,
+			     u8 *mac_addr, u8 *mac_addr_mask)
 {
 	int i;
 
@@ -7822,6 +7990,60 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
 	return err;
 }
 
+static int nl80211_notify_radar_detection(struct sk_buff *skb,
+					  struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct net_device *dev = info->user_ptr[1];
+	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct wiphy *wiphy = wdev->wiphy;
+	struct cfg80211_chan_def chandef;
+	enum nl80211_dfs_regions dfs_region;
+	int err;
+
+	dfs_region = reg_get_dfs_region(wiphy);
+	if (dfs_region == NL80211_DFS_UNSET) {
+		GENL_SET_ERR_MSG(info,
+				 "DFS Region is not set. Unexpected Radar indication");
+		return -EINVAL;
+	}
+
+	err = nl80211_parse_chandef(rdev, info, &chandef);
+	if (err) {
+		GENL_SET_ERR_MSG(info, "Unable to extract chandef info");
+		return err;
+	}
+
+	err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype);
+	if (err < 0) {
+		GENL_SET_ERR_MSG(info, "chandef is invalid");
+		return err;
+	}
+
+	if (err == 0) {
+		GENL_SET_ERR_MSG(info,
+				 "Unexpected Radar indication for chandef/iftype");
+		return -EINVAL;
+	}
+
+	/* Do not process this notification if radar is already detected
+	 * by kernel on this channel, and return success.
+	 */
+	if (chandef.chan->dfs_state == NL80211_DFS_UNAVAILABLE)
+		return 0;
+
+	cfg80211_set_dfs_state(wiphy, &chandef, NL80211_DFS_UNAVAILABLE);
+
+	cfg80211_sched_dfs_chan_update(rdev);
+
+	memcpy(&rdev->radar_chandef, &chandef, sizeof(chandef));
+
+	/* Propagate this notification to other radios as well */
+	queue_work(cfg80211_wq, &rdev->propagate_radar_detect_wk);
+
+	return 0;
+}
+
 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -13899,6 +14121,22 @@ static const struct genl_ops nl80211_ops[] = {
 		.internal_flags = NL80211_FLAG_NEED_NETDEV |
 				  NL80211_FLAG_NEED_RTNL,
 	},
+	{
+		.cmd = NL80211_CMD_PEER_MEASUREMENT_START,
+		.doit = nl80211_pmsr_start,
+		.policy = nl80211_policy,
+		.flags = GENL_UNS_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_WDEV_UP |
+				  NL80211_FLAG_NEED_RTNL,
+	},
+	{
+		.cmd = NL80211_CMD_NOTIFY_RADAR,
+		.doit = nl80211_notify_radar_detection,
+		.policy = nl80211_policy,
+		.flags = GENL_UNS_ADMIN_PERM,
+		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+				  NL80211_FLAG_NEED_RTNL,
+	},
 };
 
 static struct genl_family nl80211_fam __ro_after_init = {
@@ -13946,15 +14184,11 @@ void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
 {
 	struct sk_buff *msg;
 
-	WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
-		cmd != NL80211_CMD_DEL_INTERFACE);
-
 	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
 	if (!msg)
 		return;
 
-	if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
-			       cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
+	if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, cmd) < 0) {
 		nlmsg_free(msg);
 		return;
 	}
@@ -14573,7 +14807,8 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 }
 
 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
-					const u8* ie, u8 ie_len, gfp_t gfp)
+					const u8 *ie, u8 ie_len,
+					int sig_dbm, gfp_t gfp)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
@@ -14599,7 +14834,9 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
 	    nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
 	    nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
 	    (ie_len && ie &&
-	     nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
+	     nla_put(msg, NL80211_ATTR_IE, ie_len, ie)) ||
+	    (sig_dbm &&
+	     nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)))
 		goto nla_put_failure;
 
 	genlmsg_end(msg, hdr);
@@ -15882,6 +16119,8 @@ static int nl80211_netlink_notify(struct notifier_block * nb,
 			} else if (wdev->conn_owner_nlportid == notify->portid) {
 				schedule_work(&wdev->disconnect_wk);
 			}
+
+			cfg80211_release_pmsr(wdev, notify->portid);
 		}
 
 		spin_lock_bh(&rdev->beacon_registrations_lock);
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index 79e47fe60c35..531c82dcba6b 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -1,4 +1,8 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Portions of this file
+ * Copyright (C) 2018 Intel Corporation
+ */
 #ifndef __NET_WIRELESS_NL80211_H
 #define __NET_WIRELESS_NL80211_H
 
@@ -6,6 +10,30 @@
 
 int nl80211_init(void);
 void nl80211_exit(void);
+
+extern const struct nla_policy nl80211_policy[NUM_NL80211_ATTR];
+
+void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
+		     int flags, u8 cmd);
+bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
+			  int attr);
+
+static inline u64 wdev_id(struct wireless_dev *wdev)
+{
+	return (u64)wdev->identifier |
+	       ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
+}
+
+int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
+			      struct cfg80211_registered_device **rdev,
+			      struct wireless_dev **wdev);
+
+int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
+			  struct genl_info *info,
+			  struct cfg80211_chan_def *chandef);
+int nl80211_parse_random_mac(struct nlattr **attrs,
+			     u8 *mac_addr, u8 *mac_addr_mask);
+
 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
 			  enum nl80211_commands cmd);
 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
@@ -95,4 +123,8 @@ void nl80211_send_ap_stopped(struct wireless_dev *wdev);
 
 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev);
 
+/* peer measurement */
+int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info);
+int nl80211_pmsr_dump_results(struct sk_buff *skb, struct netlink_callback *cb);
+
 #endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c
new file mode 100644
index 000000000000..de9286703280
--- /dev/null
+++ b/net/wireless/pmsr.c
@@ -0,0 +1,590 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018 Intel Corporation
+ */
+#ifndef __PMSR_H
+#define __PMSR_H
+#include <net/cfg80211.h>
+#include "core.h"
+#include "nl80211.h"
+#include "rdev-ops.h"
+
+static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev,
+			  struct nlattr *ftmreq,
+			  struct cfg80211_pmsr_request_peer *out,
+			  struct genl_info *info)
+{
+	const struct cfg80211_pmsr_capabilities *capa = rdev->wiphy.pmsr_capa;
+	struct nlattr *tb[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1];
+	u32 preamble = NL80211_PREAMBLE_DMG; /* only optional in DMG */
+
+	/* validate existing data */
+	if (!(rdev->wiphy.pmsr_capa->ftm.bandwidths & BIT(out->chandef.width))) {
+		NL_SET_ERR_MSG(info->extack, "FTM: unsupported bandwidth");
+		return -EINVAL;
+	}
+
+	/* no validation needed - was already done via nested policy */
+	nla_parse_nested(tb, NL80211_PMSR_FTM_REQ_ATTR_MAX, ftmreq, NULL, NULL);
+
+	if (tb[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE])
+		preamble = nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE]);
+
+	/* set up values - struct is 0-initialized */
+	out->ftm.requested = true;
+
+	switch (out->chandef.chan->band) {
+	case NL80211_BAND_60GHZ:
+		/* optional */
+		break;
+	default:
+		if (!tb[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE]) {
+			NL_SET_ERR_MSG(info->extack,
+				       "FTM: must specify preamble");
+			return -EINVAL;
+		}
+	}
+
+	if (!(capa->ftm.preambles & BIT(preamble))) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE],
+				    "FTM: invalid preamble");
+		return -EINVAL;
+	}
+
+	out->ftm.preamble = preamble;
+
+	out->ftm.burst_period = 0;
+	if (tb[NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD])
+		out->ftm.burst_period =
+			nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD]);
+
+	out->ftm.asap = !!tb[NL80211_PMSR_FTM_REQ_ATTR_ASAP];
+	if (out->ftm.asap && !capa->ftm.asap) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_FTM_REQ_ATTR_ASAP],
+				    "FTM: ASAP mode not supported");
+		return -EINVAL;
+	}
+
+	if (!out->ftm.asap && !capa->ftm.non_asap) {
+		NL_SET_ERR_MSG(info->extack,
+			       "FTM: non-ASAP mode not supported");
+		return -EINVAL;
+	}
+
+	out->ftm.num_bursts_exp = 0;
+	if (tb[NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP])
+		out->ftm.num_bursts_exp =
+			nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP]);
+
+	if (capa->ftm.max_bursts_exponent >= 0 &&
+	    out->ftm.num_bursts_exp > capa->ftm.max_bursts_exponent) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP],
+				    "FTM: max NUM_BURSTS_EXP must be set lower than the device limit");
+		return -EINVAL;
+	}
+
+	out->ftm.burst_duration = 15;
+	if (tb[NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION])
+		out->ftm.burst_duration =
+			nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_BURST_DURATION]);
+
+	out->ftm.ftms_per_burst = 0;
+	if (tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST])
+		out->ftm.ftms_per_burst =
+			nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST]);
+
+	if (capa->ftm.max_ftms_per_burst &&
+	    (out->ftm.ftms_per_burst > capa->ftm.max_ftms_per_burst ||
+	     out->ftm.ftms_per_burst == 0)) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST],
+				    "FTM: FTMs per burst must be set lower than the device limit but non-zero");
+		return -EINVAL;
+	}
+
+	out->ftm.ftmr_retries = 3;
+	if (tb[NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES])
+		out->ftm.ftmr_retries =
+			nla_get_u32(tb[NL80211_PMSR_FTM_REQ_ATTR_NUM_FTMR_RETRIES]);
+
+	out->ftm.request_lci = !!tb[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI];
+	if (out->ftm.request_lci && !capa->ftm.request_lci) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI],
+				    "FTM: LCI request not supported");
+	}
+
+	out->ftm.request_civicloc =
+		!!tb[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC];
+	if (out->ftm.request_civicloc && !capa->ftm.request_civicloc) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC],
+			    "FTM: civic location request not supported");
+	}
+
+	return 0;
+}
+
+static int pmsr_parse_peer(struct cfg80211_registered_device *rdev,
+			   struct nlattr *peer,
+			   struct cfg80211_pmsr_request_peer *out,
+			   struct genl_info *info)
+{
+	struct nlattr *tb[NL80211_PMSR_PEER_ATTR_MAX + 1];
+	struct nlattr *req[NL80211_PMSR_REQ_ATTR_MAX + 1];
+	struct nlattr *treq;
+	int err, rem;
+
+	/* no validation needed - was already done via nested policy */
+	nla_parse_nested(tb, NL80211_PMSR_PEER_ATTR_MAX, peer, NULL, NULL);
+
+	if (!tb[NL80211_PMSR_PEER_ATTR_ADDR] ||
+	    !tb[NL80211_PMSR_PEER_ATTR_CHAN] ||
+	    !tb[NL80211_PMSR_PEER_ATTR_REQ]) {
+		NL_SET_ERR_MSG_ATTR(info->extack, peer,
+				    "insufficient peer data");
+		return -EINVAL;
+	}
+
+	memcpy(out->addr, nla_data(tb[NL80211_PMSR_PEER_ATTR_ADDR]), ETH_ALEN);
+
+	/* reuse info->attrs */
+	memset(info->attrs, 0, sizeof(*info->attrs) * (NL80211_ATTR_MAX + 1));
+	/* need to validate here, we don't want to have validation recursion */
+	err = nla_parse_nested(info->attrs, NL80211_ATTR_MAX,
+			       tb[NL80211_PMSR_PEER_ATTR_CHAN],
+			       nl80211_policy, info->extack);
+	if (err)
+		return err;
+
+	err = nl80211_parse_chandef(rdev, info, &out->chandef);
+	if (err)
+		return err;
+
+	/* no validation needed - was already done via nested policy */
+	nla_parse_nested(req, NL80211_PMSR_REQ_ATTR_MAX,
+			 tb[NL80211_PMSR_PEER_ATTR_REQ],
+			 NULL, NULL);
+
+	if (!req[NL80211_PMSR_REQ_ATTR_DATA]) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    tb[NL80211_PMSR_PEER_ATTR_REQ],
+				    "missing request type/data");
+		return -EINVAL;
+	}
+
+	if (req[NL80211_PMSR_REQ_ATTR_GET_AP_TSF])
+		out->report_ap_tsf = true;
+
+	if (out->report_ap_tsf && !rdev->wiphy.pmsr_capa->report_ap_tsf) {
+		NL_SET_ERR_MSG_ATTR(info->extack,
+				    req[NL80211_PMSR_REQ_ATTR_GET_AP_TSF],
+				    "reporting AP TSF is not supported");
+		return -EINVAL;
+	}
+
+	nla_for_each_nested(treq, req[NL80211_PMSR_REQ_ATTR_DATA], rem) {
+		switch (nla_type(treq)) {
+		case NL80211_PMSR_TYPE_FTM:
+			err = pmsr_parse_ftm(rdev, treq, out, info);
+			break;
+		default:
+			NL_SET_ERR_MSG_ATTR(info->extack, treq,
+					    "unsupported measurement type");
+			err = -EINVAL;
+		}
+	}
+
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int nl80211_pmsr_start(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nlattr *reqattr = info->attrs[NL80211_ATTR_PEER_MEASUREMENTS];
+	struct cfg80211_registered_device *rdev = info->user_ptr[0];
+	struct wireless_dev *wdev = info->user_ptr[1];
+	struct cfg80211_pmsr_request *req;
+	struct nlattr *peers, *peer;
+	int count, rem, err, idx;
+
+	if (!rdev->wiphy.pmsr_capa)
+		return -EOPNOTSUPP;
+
+	if (!reqattr)
+		return -EINVAL;
+
+	peers = nla_find(nla_data(reqattr), nla_len(reqattr),
+			 NL80211_PMSR_ATTR_PEERS);
+	if (!peers)
+		return -EINVAL;
+
+	count = 0;
+	nla_for_each_nested(peer, peers, rem) {
+		count++;
+
+		if (count > rdev->wiphy.pmsr_capa->max_peers) {
+			NL_SET_ERR_MSG_ATTR(info->extack, peer,
+					    "Too many peers used");
+			return -EINVAL;
+		}
+	}
+
+	req = kzalloc(struct_size(req, peers, count), GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	if (info->attrs[NL80211_ATTR_TIMEOUT])
+		req->timeout = nla_get_u32(info->attrs[NL80211_ATTR_TIMEOUT]);
+
+	if (info->attrs[NL80211_ATTR_MAC]) {
+		if (!rdev->wiphy.pmsr_capa->randomize_mac_addr) {
+			NL_SET_ERR_MSG_ATTR(info->extack,
+					    info->attrs[NL80211_ATTR_MAC],
+					    "device cannot randomize MAC address");
+			err = -EINVAL;
+			goto out_err;
+		}
+
+		err = nl80211_parse_random_mac(info->attrs, req->mac_addr,
+					       req->mac_addr_mask);
+		if (err)
+			goto out_err;
+	} else {
+		memcpy(req->mac_addr, nla_data(info->attrs[NL80211_ATTR_MAC]),
+		       ETH_ALEN);
+		memset(req->mac_addr_mask, 0xff, ETH_ALEN);
+	}
+
+	idx = 0;
+	nla_for_each_nested(peer, peers, rem) {
+		/* NB: this reuses info->attrs, but we no longer need it */
+		err = pmsr_parse_peer(rdev, peer, &req->peers[idx], info);
+		if (err)
+			goto out_err;
+		idx++;
+	}
+
+	req->n_peers = count;
+	req->cookie = cfg80211_assign_cookie(rdev);
+
+	err = rdev_start_pmsr(rdev, wdev, req);
+	if (err)
+		goto out_err;
+
+	list_add_tail(&req->list, &wdev->pmsr_list);
+
+	nl_set_extack_cookie_u64(info->extack, req->cookie);
+	return 0;
+out_err:
+	kfree(req);
+	return err;
+}
+
+void cfg80211_pmsr_complete(struct wireless_dev *wdev,
+			    struct cfg80211_pmsr_request *req,
+			    gfp_t gfp)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+	struct sk_buff *msg;
+	void *hdr;
+
+	trace_cfg80211_pmsr_complete(wdev->wiphy, wdev, req->cookie);
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+	if (!msg)
+		goto free_request;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0,
+			     NL80211_CMD_PEER_MEASUREMENT_COMPLETE);
+	if (!hdr)
+		goto free_msg;
+
+	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+	    nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
+			      NL80211_ATTR_PAD))
+		goto free_msg;
+
+	if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->cookie,
+			      NL80211_ATTR_PAD))
+		goto free_msg;
+
+	genlmsg_end(msg, hdr);
+	genlmsg_unicast(wiphy_net(wdev->wiphy), msg, req->nl_portid);
+	goto free_request;
+free_msg:
+	nlmsg_free(msg);
+free_request:
+	spin_lock_bh(&wdev->pmsr_lock);
+	list_del(&req->list);
+	spin_unlock_bh(&wdev->pmsr_lock);
+	kfree(req);
+}
+EXPORT_SYMBOL_GPL(cfg80211_pmsr_complete);
+
+static int nl80211_pmsr_send_ftm_res(struct sk_buff *msg,
+				     struct cfg80211_pmsr_result *res)
+{
+	if (res->status == NL80211_PMSR_STATUS_FAILURE) {
+		if (nla_put_u32(msg, NL80211_PMSR_FTM_RESP_ATTR_FAIL_REASON,
+				res->ftm.failure_reason))
+			goto error;
+
+		if (res->ftm.failure_reason ==
+			NL80211_PMSR_FTM_FAILURE_PEER_BUSY &&
+		    res->ftm.busy_retry_time &&
+		    nla_put_u32(msg, NL80211_PMSR_FTM_RESP_ATTR_BUSY_RETRY_TIME,
+				res->ftm.busy_retry_time))
+			goto error;
+
+		return 0;
+	}
+
+#define PUT(tp, attr, val)						\
+	do {								\
+		if (nla_put_##tp(msg,					\
+				 NL80211_PMSR_FTM_RESP_ATTR_##attr,	\
+				 res->ftm.val))				\
+			goto error;					\
+	} while (0)
+
+#define PUTOPT(tp, attr, val)						\
+	do {								\
+		if (res->ftm.val##_valid)				\
+			PUT(tp, attr, val);				\
+	} while (0)
+
+#define PUT_U64(attr, val)						\
+	do {								\
+		if (nla_put_u64_64bit(msg,				\
+				      NL80211_PMSR_FTM_RESP_ATTR_##attr,\
+				      res->ftm.val,			\
+				      NL80211_PMSR_FTM_RESP_ATTR_PAD))	\
+			goto error;					\
+	} while (0)
+
+#define PUTOPT_U64(attr, val)						\
+	do {								\
+		if (res->ftm.val##_valid)				\
+			PUT_U64(attr, val);				\
+	} while (0)
+
+	if (res->ftm.burst_index >= 0)
+		PUT(u32, BURST_INDEX, burst_index);
+	PUTOPT(u32, NUM_FTMR_ATTEMPTS, num_ftmr_attempts);
+	PUTOPT(u32, NUM_FTMR_SUCCESSES, num_ftmr_successes);
+	PUT(u8, NUM_BURSTS_EXP, num_bursts_exp);
+	PUT(u8, BURST_DURATION, burst_duration);
+	PUT(u8, FTMS_PER_BURST, ftms_per_burst);
+	PUTOPT(s32, RSSI_AVG, rssi_avg);
+	PUTOPT(s32, RSSI_SPREAD, rssi_spread);
+	if (res->ftm.tx_rate_valid &&
+	    !nl80211_put_sta_rate(msg, &res->ftm.tx_rate,
+				  NL80211_PMSR_FTM_RESP_ATTR_TX_RATE))
+		goto error;
+	if (res->ftm.rx_rate_valid &&
+	    !nl80211_put_sta_rate(msg, &res->ftm.rx_rate,
+				  NL80211_PMSR_FTM_RESP_ATTR_RX_RATE))
+		goto error;
+	PUTOPT_U64(RTT_AVG, rtt_avg);
+	PUTOPT_U64(RTT_VARIANCE, rtt_variance);
+	PUTOPT_U64(RTT_SPREAD, rtt_spread);
+	PUTOPT_U64(DIST_AVG, dist_avg);
+	PUTOPT_U64(DIST_VARIANCE, dist_variance);
+	PUTOPT_U64(DIST_SPREAD, dist_spread);
+	if (res->ftm.lci && res->ftm.lci_len &&
+	    nla_put(msg, NL80211_PMSR_FTM_RESP_ATTR_LCI,
+		    res->ftm.lci_len, res->ftm.lci))
+		goto error;
+	if (res->ftm.civicloc && res->ftm.civicloc_len &&
+	    nla_put(msg, NL80211_PMSR_FTM_RESP_ATTR_CIVICLOC,
+		    res->ftm.civicloc_len, res->ftm.civicloc))
+		goto error;
+#undef PUT
+#undef PUTOPT
+#undef PUT_U64
+#undef PUTOPT_U64
+
+	return 0;
+error:
+	return -ENOSPC;
+}
+
+static int nl80211_pmsr_send_result(struct sk_buff *msg,
+				    struct cfg80211_pmsr_result *res)
+{
+	struct nlattr *pmsr, *peers, *peer, *resp, *data, *typedata;
+
+	pmsr = nla_nest_start(msg, NL80211_ATTR_PEER_MEASUREMENTS);
+	if (!pmsr)
+		goto error;
+
+	peers = nla_nest_start(msg, NL80211_PMSR_ATTR_PEERS);
+	if (!peers)
+		goto error;
+
+	peer = nla_nest_start(msg, 1);
+	if (!peer)
+		goto error;
+
+	if (nla_put(msg, NL80211_PMSR_PEER_ATTR_ADDR, ETH_ALEN, res->addr))
+		goto error;
+
+	resp = nla_nest_start(msg, NL80211_PMSR_PEER_ATTR_RESP);
+	if (!resp)
+		goto error;
+
+	if (nla_put_u32(msg, NL80211_PMSR_RESP_ATTR_STATUS, res->status) ||
+	    nla_put_u64_64bit(msg, NL80211_PMSR_RESP_ATTR_HOST_TIME,
+			      res->host_time, NL80211_PMSR_RESP_ATTR_PAD))
+		goto error;
+
+	if (res->ap_tsf_valid &&
+	    nla_put_u64_64bit(msg, NL80211_PMSR_RESP_ATTR_AP_TSF,
+			      res->host_time, NL80211_PMSR_RESP_ATTR_PAD))
+		goto error;
+
+	if (res->final && nla_put_flag(msg, NL80211_PMSR_RESP_ATTR_FINAL))
+		goto error;
+
+	data = nla_nest_start(msg, NL80211_PMSR_RESP_ATTR_DATA);
+	if (!data)
+		goto error;
+
+	typedata = nla_nest_start(msg, res->type);
+	if (!typedata)
+		goto error;
+
+	switch (res->type) {
+	case NL80211_PMSR_TYPE_FTM:
+		if (nl80211_pmsr_send_ftm_res(msg, res))
+			goto error;
+		break;
+	default:
+		WARN_ON(1);
+	}
+
+	nla_nest_end(msg, typedata);
+	nla_nest_end(msg, data);
+	nla_nest_end(msg, resp);
+	nla_nest_end(msg, peer);
+	nla_nest_end(msg, peers);
+	nla_nest_end(msg, pmsr);
+
+	return 0;
+error:
+	return -ENOSPC;
+}
+
+void cfg80211_pmsr_report(struct wireless_dev *wdev,
+			  struct cfg80211_pmsr_request *req,
+			  struct cfg80211_pmsr_result *result,
+			  gfp_t gfp)
+{
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+	struct sk_buff *msg;
+	void *hdr;
+	int err;
+
+	trace_cfg80211_pmsr_report(wdev->wiphy, wdev, req->cookie,
+				   result->addr);
+
+	/*
+	 * Currently, only variable items are LCI and civic location,
+	 * both of which are reasonably short so we don't need to
+	 * worry about them here for the allocation.
+	 */
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+	if (!msg)
+		return;
+
+	hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PEER_MEASUREMENT_RESULT);
+	if (!hdr)
+		goto free;
+
+	if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
+	    nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
+			      NL80211_ATTR_PAD))
+		goto free;
+
+	if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->cookie,
+			      NL80211_ATTR_PAD))
+		goto free;
+
+	err = nl80211_pmsr_send_result(msg, result);
+	if (err) {
+		pr_err_ratelimited("peer measurement result: message didn't fit!");
+		goto free;
+	}
+
+	genlmsg_end(msg, hdr);
+	genlmsg_unicast(wiphy_net(wdev->wiphy), msg, req->nl_portid);
+	return;
+free:
+	nlmsg_free(msg);
+}
+EXPORT_SYMBOL_GPL(cfg80211_pmsr_report);
+
+void cfg80211_pmsr_free_wk(struct work_struct *work)
+{
+	struct wireless_dev *wdev = container_of(work, struct wireless_dev,
+						 pmsr_free_wk);
+	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
+	struct cfg80211_pmsr_request *req, *tmp;
+	LIST_HEAD(free_list);
+
+	spin_lock_bh(&wdev->pmsr_lock);
+	list_for_each_entry_safe(req, tmp, &wdev->pmsr_list, list) {
+		if (req->nl_portid)
+			continue;
+		list_move_tail(&req->list, &free_list);
+	}
+	spin_unlock_bh(&wdev->pmsr_lock);
+
+	list_for_each_entry_safe(req, tmp, &free_list, list) {
+		wdev_lock(wdev);
+		rdev_abort_pmsr(rdev, wdev, req);
+		wdev_unlock(wdev);
+
+		kfree(req);
+	}
+}
+
+void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev)
+{
+	struct cfg80211_pmsr_request *req;
+	bool found = false;
+
+	spin_lock_bh(&wdev->pmsr_lock);
+	list_for_each_entry(req, &wdev->pmsr_list, list) {
+		found = true;
+		req->nl_portid = 0;
+	}
+	spin_unlock_bh(&wdev->pmsr_lock);
+
+	if (found)
+		schedule_work(&wdev->pmsr_free_wk);
+	flush_work(&wdev->pmsr_free_wk);
+	WARN_ON(!list_empty(&wdev->pmsr_list));
+}
+
+void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid)
+{
+	struct cfg80211_pmsr_request *req;
+
+	spin_lock_bh(&wdev->pmsr_lock);
+	list_for_each_entry(req, &wdev->pmsr_list, list) {
+		if (req->nl_portid == portid) {
+			req->nl_portid = 0;
+			schedule_work(&wdev->pmsr_free_wk);
+		}
+	}
+	spin_unlock_bh(&wdev->pmsr_lock);
+}
+
+#endif /* __PMSR_H */
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 51380b5c32f2..5cb48d135fab 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1247,4 +1247,29 @@ rdev_get_ftm_responder_stats(struct cfg80211_registered_device *rdev,
 	return ret;
 }
 
+static inline int
+rdev_start_pmsr(struct cfg80211_registered_device *rdev,
+		struct wireless_dev *wdev,
+		struct cfg80211_pmsr_request *request)
+{
+	int ret = -EOPNOTSUPP;
+
+	trace_rdev_start_pmsr(&rdev->wiphy, wdev, request->cookie);
+	if (rdev->ops->start_pmsr)
+		ret = rdev->ops->start_pmsr(&rdev->wiphy, wdev, request);
+	trace_rdev_return_int(&rdev->wiphy, ret);
+	return ret;
+}
+
+static inline void
+rdev_abort_pmsr(struct cfg80211_registered_device *rdev,
+		struct wireless_dev *wdev,
+		struct cfg80211_pmsr_request *request)
+{
+	trace_rdev_abort_pmsr(&rdev->wiphy, wdev, request->cookie);
+	if (rdev->ops->abort_pmsr)
+		rdev->ops->abort_pmsr(&rdev->wiphy, wdev, request);
+	trace_rdev_return_void(&rdev->wiphy);
+}
+
 #endif /* __CFG80211_RDEV_OPS */
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index d0e7472dd9fd..5123667f4569 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1183,7 +1183,7 @@ cfg80211_inform_bss_data(struct wiphy *wiphy,
 	switch (ftype) {
 	case CFG80211_BSS_FTYPE_BEACON:
 		ies->from_beacon = true;
-		/* fall through to assign */
+		/* fall through */
 	case CFG80211_BSS_FTYPE_UNKNOWN:
 		rcu_assign_pointer(tmp.pub.beacon_ies, ies);
 		break;
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index c6a9446b4e6b..44b2ce1bb13a 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -361,6 +361,24 @@ DECLARE_EVENT_CLASS(wiphy_wdev_evt,
 	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT, WIPHY_PR_ARG, WDEV_PR_ARG)
 );
 
+DECLARE_EVENT_CLASS(wiphy_wdev_cookie_evt,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie),
+	TP_ARGS(wiphy, wdev, cookie),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(u64, cookie)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", cookie: %lld",
+		  WIPHY_PR_ARG, WDEV_PR_ARG,
+		  (unsigned long long)__entry->cookie)
+);
+
 DEFINE_EVENT(wiphy_wdev_evt, rdev_return_wdev,
 	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev),
 	TP_ARGS(wiphy, wdev)
@@ -770,9 +788,9 @@ DEFINE_EVENT(wiphy_netdev_mac_evt, rdev_set_wds_peer,
 );
 
 TRACE_EVENT(rdev_dump_station,
-	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int _idx,
 		 u8 *mac),
-	TP_ARGS(wiphy, netdev, idx, mac),
+	TP_ARGS(wiphy, netdev, _idx, mac),
 	TP_STRUCT__entry(
 		WIPHY_ENTRY
 		NETDEV_ENTRY
@@ -783,7 +801,7 @@ TRACE_EVENT(rdev_dump_station,
 		WIPHY_ASSIGN;
 		NETDEV_ASSIGN;
 		MAC_ASSIGN(sta_mac, mac);
-		__entry->idx = idx;
+		__entry->idx = _idx;
 	),
 	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", station mac: " MAC_PR_FMT ", idx: %d",
 		  WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(sta_mac),
@@ -847,9 +865,9 @@ DEFINE_EVENT(mpath_evt, rdev_get_mpath,
 );
 
 TRACE_EVENT(rdev_dump_mpath,
-	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int _idx,
 		 u8 *dst, u8 *next_hop),
-	TP_ARGS(wiphy, netdev, idx, dst, next_hop),
+	TP_ARGS(wiphy, netdev, _idx, dst, next_hop),
 	TP_STRUCT__entry(
 		WIPHY_ENTRY
 		NETDEV_ENTRY
@@ -862,7 +880,7 @@ TRACE_EVENT(rdev_dump_mpath,
 		NETDEV_ASSIGN;
 		MAC_ASSIGN(dst, dst);
 		MAC_ASSIGN(next_hop, next_hop);
-		__entry->idx = idx;
+		__entry->idx = _idx;
 	),
 	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", index: %d, destination: "
 		  MAC_PR_FMT ", next hop: " MAC_PR_FMT,
@@ -892,9 +910,9 @@ TRACE_EVENT(rdev_get_mpp,
 );
 
 TRACE_EVENT(rdev_dump_mpp,
-	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx,
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int _idx,
 		 u8 *dst, u8 *mpp),
-	TP_ARGS(wiphy, netdev, idx, mpp, dst),
+	TP_ARGS(wiphy, netdev, _idx, mpp, dst),
 	TP_STRUCT__entry(
 		WIPHY_ENTRY
 		NETDEV_ENTRY
@@ -907,7 +925,7 @@ TRACE_EVENT(rdev_dump_mpp,
 		NETDEV_ASSIGN;
 		MAC_ASSIGN(dst, dst);
 		MAC_ASSIGN(mpp, mpp);
-		__entry->idx = idx;
+		__entry->idx = _idx;
 	),
 	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", index: %d, destination: "
 		  MAC_PR_FMT ", mpp: " MAC_PR_FMT,
@@ -1673,8 +1691,8 @@ TRACE_EVENT(rdev_tdls_mgmt,
 );
 
 TRACE_EVENT(rdev_dump_survey,
-	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int idx),
-	TP_ARGS(wiphy, netdev, idx),
+	TP_PROTO(struct wiphy *wiphy, struct net_device *netdev, int _idx),
+	TP_ARGS(wiphy, netdev, _idx),
 	TP_STRUCT__entry(
 		WIPHY_ENTRY
 		NETDEV_ENTRY
@@ -1683,7 +1701,7 @@ TRACE_EVENT(rdev_dump_survey,
 	TP_fast_assign(
 		WIPHY_ASSIGN;
 		NETDEV_ASSIGN;
-		__entry->idx = idx;
+		__entry->idx = _idx;
 	),
 	TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", index: %d",
 		  WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->idx)
@@ -2502,6 +2520,16 @@ TRACE_EVENT(rdev_get_ftm_responder_stats,
 		__entry->out_of_window)
 );
 
+DEFINE_EVENT(wiphy_wdev_cookie_evt, rdev_start_pmsr,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie),
+	TP_ARGS(wiphy, wdev, cookie)
+);
+
+DEFINE_EVENT(wiphy_wdev_cookie_evt, rdev_abort_pmsr,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie),
+	TP_ARGS(wiphy, wdev, cookie)
+);
+
 /*************************************************************
  *	     cfg80211 exported functions traces		     *
  *************************************************************/
@@ -3294,6 +3322,46 @@ TRACE_EVENT(cfg80211_stop_iface,
 	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT,
 		  WIPHY_PR_ARG, WDEV_PR_ARG)
 );
+
+TRACE_EVENT(cfg80211_pmsr_report,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev,
+		 u64 cookie, const u8 *addr),
+	TP_ARGS(wiphy, wdev, cookie, addr),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(u64, cookie)
+		MAC_ENTRY(addr)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+		MAC_ASSIGN(addr, addr);
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", cookie:%lld, " MAC_PR_FMT,
+		  WIPHY_PR_ARG, WDEV_PR_ARG,
+		  (unsigned long long)__entry->cookie,
+		  MAC_PR_ARG(addr))
+);
+
+TRACE_EVENT(cfg80211_pmsr_complete,
+	TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie),
+	TP_ARGS(wiphy, wdev, cookie),
+	TP_STRUCT__entry(
+		WIPHY_ENTRY
+		WDEV_ENTRY
+		__field(u64, cookie)
+	),
+	TP_fast_assign(
+		WIPHY_ASSIGN;
+		WDEV_ASSIGN;
+		__entry->cookie = cookie;
+	),
+	TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT ", cookie:%lld",
+		  WIPHY_PR_ARG, WDEV_PR_ARG,
+		  (unsigned long long)__entry->cookie)
+);
 #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
 
 #undef TRACE_INCLUDE_PATH
diff --git a/net/wireless/util.c b/net/wireless/util.c
index d473bd135da8..cd48cdd582c0 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -2015,33 +2015,32 @@ int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
 	case IEEE80211_VHT_CHANWIDTH_160MHZ:
 		if (supp_width == 0 &&
 		    (ext_nss_bw == 1 || ext_nss_bw == 2))
-			return DIV_ROUND_UP(max_vht_nss, 2);
+			return max_vht_nss / 2;
 		if (supp_width == 0 &&
 		    ext_nss_bw == 3)
-			return DIV_ROUND_UP(3 * max_vht_nss, 4);
+			return (3 * max_vht_nss) / 4;
 		if (supp_width == 1 &&
 		    ext_nss_bw == 3)
 			return 2 * max_vht_nss;
 		break;
 	case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-		if (supp_width == 0 &&
-		    (ext_nss_bw == 1 || ext_nss_bw == 2))
+		if (supp_width == 0 && ext_nss_bw == 1)
 			return 0; /* not possible */
 		if (supp_width == 0 &&
 		    ext_nss_bw == 2)
-			return DIV_ROUND_UP(max_vht_nss, 2);
+			return max_vht_nss / 2;
 		if (supp_width == 0 &&
 		    ext_nss_bw == 3)
-			return DIV_ROUND_UP(3 * max_vht_nss, 4);
+			return (3 * max_vht_nss) / 4;
 		if (supp_width == 1 &&
 		    ext_nss_bw == 0)
 			return 0; /* not possible */
 		if (supp_width == 1 &&
 		    ext_nss_bw == 1)
-			return DIV_ROUND_UP(max_vht_nss, 2);
+			return max_vht_nss / 2;
 		if (supp_width == 1 &&
 		    ext_nss_bw == 2)
-			return DIV_ROUND_UP(3 * max_vht_nss, 4);
+			return (3 * max_vht_nss) / 4;
 		break;
 	}
author	David S. Miller <davem@davemloft.net>	2018-12-19 17:36:18 +0100
committer	David S. Miller <davem@davemloft.net>	2018-12-19 17:36:18 +0100
commit	5a862f86b8e86562fc8532160c5530a13e1e944b (patch)
tree	0fa13538752825a01dc98c34dc175271c9341815 /net
parent	net: ethernet: don't set phylib state CHANGELINK in drivers (diff)
parent	mac80211: Properly access radiotap vendor data (diff)
download	linux-5a862f86b8e86562fc8532160c5530a13e1e944b.tar.xz linux-5a862f86b8e86562fc8532160c5530a13e1e944b.zip