Merge branch 'for-john' of git://git.sipsolutions.net/mac80211-next

16 files changed, 258 insertions, 104 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 85ac364f4636..d197dbeef9ce 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -689,7 +689,8 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
 	case CHAN_MODE_HOPPING:
 		return -EBUSY;
 	case CHAN_MODE_FIXED:
-		if (local->oper_channel != chan)
+		if (local->oper_channel != chan ||
+		    (!sdata && local->_oper_channel_type != channel_type))
 			return -EBUSY;
 		if (!sdata && local->_oper_channel_type == channel_type)
 			return 0;
@@ -1529,7 +1530,7 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 	if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
 		conf->dot11MeshTTL = nconf->dot11MeshTTL;
 	if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
-		conf->dot11MeshTTL = nconf->element_ttl;
+		conf->element_ttl = nconf->element_ttl;
 	if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
 		conf->auto_open_plinks = nconf->auto_open_plinks;
 	if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
@@ -1564,17 +1565,16 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 		 * announcements, so require this ifmsh to also be a root node
 		 * */
 		if (nconf->dot11MeshGateAnnouncementProtocol &&
-		    !conf->dot11MeshHWMPRootMode) {
-			conf->dot11MeshHWMPRootMode = 1;
+		    !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
+			conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
 			ieee80211_mesh_root_setup(ifmsh);
 		}
 		conf->dot11MeshGateAnnouncementProtocol =
 			nconf->dot11MeshGateAnnouncementProtocol;
 	}
-	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
 		conf->dot11MeshHWMPRannInterval =
 			nconf->dot11MeshHWMPRannInterval;
-	}
 	if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
 		conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
 	if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
@@ -1590,6 +1590,15 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 		sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
 		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
 	}
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
+		conf->dot11MeshHWMPactivePathToRootTimeout =
+			nconf->dot11MeshHWMPactivePathToRootTimeout;
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
+		conf->dot11MeshHWMProotInterval =
+			nconf->dot11MeshHWMProotInterval;
+	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
+		conf->dot11MeshHWMPconfirmationInterval =
+			nconf->dot11MeshHWMPconfirmationInterval;
 	return 0;
 }
 
@@ -2309,6 +2318,21 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 
 	mutex_lock(&local->mtx);
 	list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
+		struct ieee80211_roc_work *dep, *tmp2;
+
+		list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
+			if (!mgmt_tx && (unsigned long)dep != cookie)
+				continue;
+			else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
+				continue;
+			/* found dependent item -- just remove it */
+			list_del(&dep->list);
+			mutex_unlock(&local->mtx);
+
+			ieee80211_roc_notify_destroy(dep);
+			return 0;
+		}
+
 		if (!mgmt_tx && (unsigned long)roc != cookie)
 			continue;
 		else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
@@ -2323,6 +2347,13 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 		return -ENOENT;
 	}
 
+	/*
+	 * We found the item to cancel, so do that. Note that it
+	 * may have dependents, which we also cancel (and send
+	 * the expired signal for.) Not doing so would be quite
+	 * tricky here, but we may need to fix it later.
+	 */
+
 	if (local->ops->remain_on_channel) {
 		if (found->started) {
 			ret = drv_cancel_remain_on_channel(local);
@@ -2334,8 +2365,8 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 
 		list_del(&found->list);
 
-		ieee80211_run_deferred_scan(local);
-		ieee80211_start_next_roc(local);
+		if (found->started)
+			ieee80211_start_next_roc(local);
 		mutex_unlock(&local->mtx);
 
 		ieee80211_roc_notify_destroy(found);
@@ -2489,16 +2520,30 @@ static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
 					  u16 frame_type, bool reg)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
-		return;
+	switch (frame_type) {
+	case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
+		if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+			struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	if (reg)
-		local->probe_req_reg++;
-	else
-		local->probe_req_reg--;
+			if (reg)
+				ifibss->auth_frame_registrations++;
+			else
+				ifibss->auth_frame_registrations--;
+		}
+		break;
+	case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
+		if (reg)
+			local->probe_req_reg++;
+		else
+			local->probe_req_reg--;
 
-	ieee80211_queue_work(&local->hw, &local->reconfig_filter);
+		ieee80211_queue_work(&local->hw, &local->reconfig_filter);
+		break;
+	default:
+		break;
+	}
 }
 
 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index d4272ff43f71..512c894893d6 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -468,48 +468,54 @@ IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
 IEEE80211_IF_FILE(dropped_frames_congestion,
-		u.mesh.mshstats.dropped_frames_congestion, DEC);
+		  u.mesh.mshstats.dropped_frames_congestion, DEC);
 IEEE80211_IF_FILE(dropped_frames_no_route,
-		u.mesh.mshstats.dropped_frames_no_route, DEC);
+		  u.mesh.mshstats.dropped_frames_no_route, DEC);
 IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
 
 /* Mesh parameters */
 IEEE80211_IF_FILE(dot11MeshMaxRetries,
-		u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
+		  u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
-		u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
+		  u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
-		u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
+		  u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
-		u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
+		  u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
-		u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
+		  u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
-		u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
-		u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
-		u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
-		u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
-		u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
 IEEE80211_IF_FILE(path_refresh_time,
-		u.mesh.mshcfg.path_refresh_time, DEC);
+		  u.mesh.mshcfg.path_refresh_time, DEC);
 IEEE80211_IF_FILE(min_discovery_timeout,
-		u.mesh.mshcfg.min_discovery_timeout, DEC);
+		  u.mesh.mshcfg.min_discovery_timeout, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
-		u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
-		u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
+		  u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
-		u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
+		  u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
+IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
+		  u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
+IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
+		  u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
+IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
+		  u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
 #endif
 
 #define DEBUGFS_ADD_MODE(name, mode) \
@@ -611,6 +617,9 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
 	MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
 	MESHPARAMS_ADD(rssi_threshold);
 	MESHPARAMS_ADD(ht_opmode);
+	MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
+	MESHPARAMS_ADD(dot11MeshHWMProotInterval);
+	MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
 #undef MESHPARAMS_ADD
 }
 #endif
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 725cb4be229d..ff46ff424941 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -279,7 +279,7 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
 	/* If it fails, maybe we raced another insertion? */
 	if (sta_info_insert_rcu(sta))
 		return sta_info_get(sdata, addr);
-	if (auth) {
+	if (auth && !sdata->u.ibss.auth_frame_registrations) {
 		ibss_vdbg("TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n",
 			  sdata->vif.addr, sdata->u.ibss.bssid, addr);
 		ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, NULL, 0,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index e6cbf5b68c89..36ce2bb066bf 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -55,11 +55,14 @@ struct ieee80211_local;
 #define TU_TO_JIFFIES(x)	(usecs_to_jiffies((x) * 1024))
 #define TU_TO_EXP_TIME(x)	(jiffies + TU_TO_JIFFIES(x))
 
+/*
+ * Some APs experience problems when working with U-APSD. Decrease the
+ * probability of that happening by using legacy mode for all ACs but VO.
+ * The AP that caused us trouble was a Cisco 4410N. It ignores our
+ * setting, and always treats non-VO ACs as legacy.
+ */
 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
-	(IEEE80211_WMM_IE_STA_QOSINFO_AC_BK |	\
-	 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE |	\
-	 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI |	\
-	 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
+	IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
 
 #define IEEE80211_DEFAULT_MAX_SP_LEN		\
 	IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
@@ -508,6 +511,7 @@ struct ieee80211_if_ibss {
 	bool privacy;
 
 	bool control_port;
+	unsigned int auth_frame_registrations;
 
 	u8 bssid[ETH_ALEN] __aligned(2);
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
@@ -677,6 +681,9 @@ struct ieee80211_sub_if_data {
 	/* TID bitmap for NoAck policy */
 	u16 noack_map;
 
+	/* bit field of ACM bits (BIT(802.1D tag)) */
+	u8 wmm_acm;
+
 	struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
 	struct ieee80211_key __rcu *default_unicast_key;
 	struct ieee80211_key __rcu *default_multicast_key;
@@ -881,6 +888,9 @@ struct ieee80211_local {
 	/* device is started */
 	bool started;
 
+	/* device is during a HW reconfig */
+	bool in_reconfig;
+
 	/* wowlan is enabled -- don't reconfig on resume */
 	bool wowlan;
 
@@ -1019,7 +1029,6 @@ struct ieee80211_local {
 	int total_ps_buffered; /* total number of all buffered unicast and
 				* multicast packets for power saving stations
 				*/
-	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
 	bool pspolling;
 	bool offchannel_ps_enabled;
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 87aeb4f21ffd..728d3eac1f59 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -808,7 +808,7 @@ static u16 ieee80211_monitor_select_queue(struct net_device *dev,
 
 	hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len));
 
-	return ieee80211_select_queue_80211(local, skb, hdr);
+	return ieee80211_select_queue_80211(sdata, skb, hdr);
 }
 
 static const struct net_device_ops ieee80211_monitorif_ops = {
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index d81c178c7712..0b040fb73673 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -345,6 +345,13 @@ void ieee80211_restart_hw(struct ieee80211_hw *hw)
 	ieee80211_stop_queues_by_reason(hw,
 		IEEE80211_QUEUE_STOP_REASON_SUSPEND);
 
+	/*
+	 * Stop all Rx during the reconfig. We don't want state changes
+	 * or driver callbacks while this is in progress.
+	 */
+	local->in_reconfig = true;
+	barrier();
+
 	schedule_work(&local->restart_work);
 }
 EXPORT_SYMBOL(ieee80211_restart_hw);
@@ -455,7 +462,9 @@ static const struct ieee80211_txrx_stypes
 ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = {
 	[NL80211_IFTYPE_ADHOC] = {
 		.tx = 0xffff,
-		.rx = BIT(IEEE80211_STYPE_ACTION >> 4),
+		.rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
+			BIT(IEEE80211_STYPE_AUTH >> 4) |
+			BIT(IEEE80211_STYPE_DEAUTH >> 4),
 	},
 	[NL80211_IFTYPE_STATION] = {
 		.tx = 0xffff,
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 7cf19509fb68..ae40a83675e9 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -443,7 +443,7 @@ static void ieee80211_mesh_path_root_timer(unsigned long data)
 
 void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh)
 {
-	if (ifmsh->mshcfg.dot11MeshHWMPRootMode)
+	if (ifmsh->mshcfg.dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)
 		set_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
 	else {
 		clear_bit(MESH_WORK_ROOT, &ifmsh->wrkq_flags);
@@ -541,11 +541,17 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata,
 static void ieee80211_mesh_rootpath(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	u32 interval;
 
 	mesh_path_tx_root_frame(sdata);
+
+	if (ifmsh->mshcfg.dot11MeshHWMPRootMode == IEEE80211_PROACTIVE_RANN)
+		interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval;
+	else
+		interval = ifmsh->mshcfg.dot11MeshHWMProotInterval;
+
 	mod_timer(&ifmsh->mesh_path_root_timer,
-		  round_jiffies(TU_TO_EXP_TIME(
-				  ifmsh->mshcfg.dot11MeshHWMPRannInterval)));
+		  round_jiffies(TU_TO_EXP_TIME(interval)));
 }
 
 #ifdef CONFIG_PM
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index e3642756f8f4..faaa39bcfd10 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -104,6 +104,7 @@ enum mesh_deferred_task_flags {
  * an mpath to a hash bucket on a path table.
  * @rann_snd_addr: the RANN sender address
  * @rann_metric: the aggregated path metric towards the root node
+ * @last_preq_to_root: Timestamp of last PREQ sent to root
  * @is_root: the destination station of this path is a root node
  * @is_gate: the destination station of this path is a mesh gate
  *
@@ -131,6 +132,7 @@ struct mesh_path {
 	spinlock_t state_lock;
 	u8 rann_snd_addr[ETH_ALEN];
 	u32 rann_metric;
+	unsigned long last_preq_to_root;
 	bool is_root;
 	bool is_gate;
 };
@@ -245,7 +247,7 @@ void mesh_rmc_free(struct ieee80211_sub_if_data *sdata);
 int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
 void ieee80211s_init(void);
 void ieee80211s_update_metric(struct ieee80211_local *local,
-		struct sta_info *stainfo, struct sk_buff *skb);
+		struct sta_info *sta, struct sk_buff *skb);
 void ieee80211s_stop(void);
 void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index fa7c58035246..aed1821bd6f1 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -98,6 +98,8 @@ static inline u32 u16_field_get(u8 *preq_elem, int offset, bool ae)
 #define max_preq_retries(s) (s->u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries)
 #define disc_timeout_jiff(s) \
 	msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout)
+#define root_path_confirmation_jiffies(s) \
+	msecs_to_jiffies(sdata->u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval)
 
 enum mpath_frame_type {
 	MPATH_PREQ = 0,
@@ -303,7 +305,7 @@ int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
 }
 
 void ieee80211s_update_metric(struct ieee80211_local *local,
-		struct sta_info *stainfo, struct sk_buff *skb)
+		struct sta_info *sta, struct sk_buff *skb)
 {
 	struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -315,15 +317,14 @@ void ieee80211s_update_metric(struct ieee80211_local *local,
 	failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK);
 
 	/* moving average, scaled to 100 */
-	stainfo->fail_avg = ((80 * stainfo->fail_avg + 5) / 100 + 20 * failed);
-	if (stainfo->fail_avg > 95)
-		mesh_plink_broken(stainfo);
+	sta->fail_avg = ((80 * sta->fail_avg + 5) / 100 + 20 * failed);
+	if (sta->fail_avg > 95)
+		mesh_plink_broken(sta);
 }
 
 static u32 airtime_link_metric_get(struct ieee80211_local *local,
 				   struct sta_info *sta)
 {
-	struct ieee80211_supported_band *sband;
 	struct rate_info rinfo;
 	/* This should be adjusted for each device */
 	int device_constant = 1 << ARITH_SHIFT;
@@ -333,8 +334,6 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
 	u32 tx_time, estimated_retx;
 	u64 result;
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
 	if (sta->fail_avg >= 100)
 		return MAX_METRIC;
 
@@ -519,10 +518,11 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 	struct mesh_path *mpath = NULL;
 	u8 *target_addr, *orig_addr;
 	const u8 *da;
-	u8 target_flags, ttl;
-	u32 orig_sn, target_sn, lifetime;
+	u8 target_flags, ttl, flags;
+	u32 orig_sn, target_sn, lifetime, orig_metric;
 	bool reply = false;
 	bool forward = true;
+	bool root_is_gate;
 
 	/* Update target SN, if present */
 	target_addr = PREQ_IE_TARGET_ADDR(preq_elem);
@@ -530,6 +530,10 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 	target_sn = PREQ_IE_TARGET_SN(preq_elem);
 	orig_sn = PREQ_IE_ORIG_SN(preq_elem);
 	target_flags = PREQ_IE_TARGET_F(preq_elem);
+	orig_metric = metric;
+	/* Proactive PREQ gate announcements */
+	flags = PREQ_IE_FLAGS(preq_elem);
+	root_is_gate = !!(flags & RANN_FLAG_IS_GATE);
 
 	mhwmp_dbg("received PREQ from %pM", orig_addr);
 
@@ -544,6 +548,22 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 			target_sn = ++ifmsh->sn;
 			ifmsh->last_sn_update = jiffies;
 		}
+	} else if (is_broadcast_ether_addr(target_addr) &&
+		   (target_flags & IEEE80211_PREQ_TO_FLAG)) {
+		rcu_read_lock();
+		mpath = mesh_path_lookup(orig_addr, sdata);
+		if (mpath) {
+			if (flags & IEEE80211_PREQ_PROACTIVE_PREP_FLAG) {
+				reply = true;
+				target_addr = sdata->vif.addr;
+				target_sn = ++ifmsh->sn;
+				metric = 0;
+				ifmsh->last_sn_update = jiffies;
+			}
+			if (root_is_gate)
+				mesh_path_add_gate(mpath);
+		}
+		rcu_read_unlock();
 	} else {
 		rcu_read_lock();
 		mpath = mesh_path_lookup(target_addr, sdata);
@@ -576,13 +596,14 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 				cpu_to_le32(target_sn), mgmt->sa, 0, ttl,
 				cpu_to_le32(lifetime), cpu_to_le32(metric),
 				0, sdata);
-		} else
+		} else {
 			ifmsh->mshstats.dropped_frames_ttl++;
+		}
 	}
 
 	if (forward && ifmsh->mshcfg.dot11MeshForwarding) {
 		u32 preq_id;
-		u8 hopcount, flags;
+		u8 hopcount;
 
 		ttl = PREQ_IE_TTL(preq_elem);
 		lifetime = PREQ_IE_LIFETIME(preq_elem);
@@ -592,11 +613,17 @@ static void hwmp_preq_frame_process(struct ieee80211_sub_if_data *sdata,
 		}
 		mhwmp_dbg("forwarding the PREQ from %pM", orig_addr);
 		--ttl;
-		flags = PREQ_IE_FLAGS(preq_elem);
 		preq_id = PREQ_IE_PREQ_ID(preq_elem);
 		hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1;
 		da = (mpath && mpath->is_root) ?
 			mpath->rann_snd_addr : broadcast_addr;
+
+		if (flags & IEEE80211_PREQ_PROACTIVE_PREP_FLAG) {
+			target_addr = PREQ_IE_TARGET_ADDR(preq_elem);
+			target_sn = PREQ_IE_TARGET_SN(preq_elem);
+			metric = orig_metric;
+		}
+
 		mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr,
 				cpu_to_le32(orig_sn), target_flags, target_addr,
 				cpu_to_le32(target_sn), da,
@@ -744,11 +771,6 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
 	bool root_is_gate;
 
 	ttl = rann->rann_ttl;
-	if (ttl <= 1) {
-		ifmsh->mshstats.dropped_frames_ttl++;
-		return;
-	}
-	ttl--;
 	flags = rann->rann_flags;
 	root_is_gate = !!(flags & RANN_FLAG_IS_GATE);
 	orig_addr = rann->rann_addr;
@@ -785,34 +807,49 @@ static void hwmp_rann_frame_process(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
+	if (!(SN_LT(mpath->sn, orig_sn)) &&
+	    !(mpath->sn == orig_sn && metric < mpath->rann_metric)) {
+		rcu_read_unlock();
+		return;
+	}
+
 	if ((!(mpath->flags & (MESH_PATH_ACTIVE | MESH_PATH_RESOLVING)) ||
-	     time_after(jiffies, mpath->exp_time - 1*HZ)) &&
-	     !(mpath->flags & MESH_PATH_FIXED)) {
+	     (time_after(jiffies, mpath->last_preq_to_root +
+				  root_path_confirmation_jiffies(sdata)) ||
+	     time_before(jiffies, mpath->last_preq_to_root))) &&
+	     !(mpath->flags & MESH_PATH_FIXED) && (ttl != 0)) {
 		mhwmp_dbg("%s time to refresh root mpath %pM", sdata->name,
 							       orig_addr);
 		mesh_queue_preq(mpath, PREQ_Q_F_START | PREQ_Q_F_REFRESH);
+		mpath->last_preq_to_root = jiffies;
+	}
+
+	mpath->sn = orig_sn;
+	mpath->rann_metric = metric + metric_txsta;
+	mpath->is_root = true;
+	/* Recording RANNs sender address to send individually
+	 * addressed PREQs destined for root mesh STA */
+	memcpy(mpath->rann_snd_addr, mgmt->sa, ETH_ALEN);
+
+	if (root_is_gate)
+		mesh_path_add_gate(mpath);
+
+	if (ttl <= 1) {
+		ifmsh->mshstats.dropped_frames_ttl++;
+		rcu_read_unlock();
+		return;
 	}
+	ttl--;
 
-	if ((SN_LT(mpath->sn, orig_sn) || (mpath->sn == orig_sn &&
-	   metric < mpath->rann_metric)) && ifmsh->mshcfg.dot11MeshForwarding) {
+	if (ifmsh->mshcfg.dot11MeshForwarding) {
 		mesh_path_sel_frame_tx(MPATH_RANN, flags, orig_addr,
 				       cpu_to_le32(orig_sn),
 				       0, NULL, 0, broadcast_addr,
 				       hopcount, ttl, cpu_to_le32(interval),
 				       cpu_to_le32(metric + metric_txsta),
 				       0, sdata);
-		mpath->sn = orig_sn;
-		mpath->rann_metric = metric + metric_txsta;
-		/* Recording RANNs sender address to send individually
-		 * addressed PREQs destined for root mesh STA */
-		memcpy(mpath->rann_snd_addr, mgmt->sa, ETH_ALEN);
 	}
 
-	mpath->is_root = true;
-
-	if (root_is_gate)
-		mesh_path_add_gate(mpath);
-
 	rcu_read_unlock();
 }
 
@@ -1157,13 +1194,34 @@ mesh_path_tx_root_frame(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	u32 interval = ifmsh->mshcfg.dot11MeshHWMPRannInterval;
-	u8 flags;
+	u8 flags, target_flags = 0;
 
 	flags = (ifmsh->mshcfg.dot11MeshGateAnnouncementProtocol)
 			? RANN_FLAG_IS_GATE : 0;
-	mesh_path_sel_frame_tx(MPATH_RANN, flags, sdata->vif.addr,
+
+	switch (ifmsh->mshcfg.dot11MeshHWMPRootMode) {
+	case IEEE80211_PROACTIVE_RANN:
+		mesh_path_sel_frame_tx(MPATH_RANN, flags, sdata->vif.addr,
 			       cpu_to_le32(++ifmsh->sn),
 			       0, NULL, 0, broadcast_addr,
-			       0, sdata->u.mesh.mshcfg.element_ttl,
+			       0, ifmsh->mshcfg.element_ttl,
 			       cpu_to_le32(interval), 0, 0, sdata);
+		break;
+	case IEEE80211_PROACTIVE_PREQ_WITH_PREP:
+		flags |= IEEE80211_PREQ_PROACTIVE_PREP_FLAG;
+	case IEEE80211_PROACTIVE_PREQ_NO_PREP:
+		interval = ifmsh->mshcfg.dot11MeshHWMPactivePathToRootTimeout;
+		target_flags |= IEEE80211_PREQ_TO_FLAG |
+				IEEE80211_PREQ_USN_FLAG;
+		mesh_path_sel_frame_tx(MPATH_PREQ, flags, sdata->vif.addr,
+				cpu_to_le32(++ifmsh->sn), target_flags,
+				(u8 *) broadcast_addr, 0, broadcast_addr,
+				0, ifmsh->mshcfg.element_ttl,
+				cpu_to_le32(interval),
+				0, cpu_to_le32(ifmsh->preq_id++), sdata);
+		break;
+	default:
+		mhwmp_dbg("Proactive mechanism not supported");
+		return;
+	}
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 079038d26a14..8149a37c93ee 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1141,7 +1141,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 
 	memset(&params, 0, sizeof(params));
 
-	local->wmm_acm = 0;
+	sdata->wmm_acm = 0;
 	for (; left >= 4; left -= 4, pos += 4) {
 		int aci = (pos[0] >> 5) & 0x03;
 		int acm = (pos[0] >> 4) & 0x01;
@@ -1152,21 +1152,21 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 		case 1: /* AC_BK */
 			queue = 3;
 			if (acm)
-				local->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
+				sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
 			if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
 				uapsd = true;
 			break;
 		case 2: /* AC_VI */
 			queue = 1;
 			if (acm)
-				local->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
+				sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
 			if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
 				uapsd = true;
 			break;
 		case 3: /* AC_VO */
 			queue = 0;
 			if (acm)
-				local->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
+				sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
 			if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
 				uapsd = true;
 			break;
@@ -1174,7 +1174,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 		default:
 			queue = 2;
 			if (acm)
-				local->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
+				sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
 			if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
 				uapsd = true;
 			break;
@@ -1275,7 +1275,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	bss_info_changed |= BSS_CHANGED_BEACON_INT;
 	bss_info_changed |= ieee80211_handle_bss_capability(sdata,
-		cbss->capability, bss->has_erp_value, bss->erp_value);
+		bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value);
 
 	sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec(
 		IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int));
@@ -3012,7 +3012,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_bss *bss = (void *)cbss->priv;
-	struct sta_info *sta;
+	struct sta_info *sta = NULL;
 	bool have_sta = false;
 	int err;
 	int ht_cfreq;
@@ -3102,7 +3102,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
 	local->oper_channel = cbss->channel;
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 
-	if (!have_sta) {
+	if (sta) {
 		u32 rates = 0, basic_rates = 0;
 		bool have_higher_than_11mbit;
 		int min_rate = INT_MAX, min_rate_index = -1;
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c
index abb226dc4753..7f93626ddc61 100644
--- a/net/mac80211/offchannel.c
+++ b/net/mac80211/offchannel.c
@@ -25,8 +25,7 @@
  * because we *may* be doing work on-operating channel, and want our
  * hardware unconditionally awake, but still let the AP send us normal frames.
  */
-static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata,
-					   bool tell_ap)
+static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -47,8 +46,8 @@ static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata,
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 	}
 
-	if (tell_ap && (!local->offchannel_ps_enabled ||
-			!(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)))
+	if (!local->offchannel_ps_enabled ||
+	    !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK))
 		/*
 		 * If power save was enabled, no need to send a nullfunc
 		 * frame because AP knows that we are sleeping. But if the
@@ -133,7 +132,7 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
 			if (offchannel_ps_enable &&
 			    (sdata->vif.type == NL80211_IFTYPE_STATION) &&
 			    sdata->u.mgd.associated)
-				ieee80211_offchannel_ps_enable(sdata, true);
+				ieee80211_offchannel_ps_enable(sdata);
 		}
 	}
 	mutex_unlock(&local->iflist_mtx);
@@ -263,6 +262,9 @@ void ieee80211_start_next_roc(struct ieee80211_local *local)
 	roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work,
 			       list);
 
+	if (WARN_ON_ONCE(roc->started))
+		return;
+
 	if (local->ops->remain_on_channel) {
 		int ret, duration = roc->duration;
 
@@ -378,8 +380,8 @@ void ieee80211_sw_roc_work(struct work_struct *work)
 
 		ieee80211_recalc_idle(local);
 
-		ieee80211_start_next_roc(local);
-		ieee80211_run_deferred_scan(local);
+		if (roc->started)
+			ieee80211_start_next_roc(local);
 	}
 
  out_unlock:
@@ -410,9 +412,6 @@ static void ieee80211_hw_roc_done(struct work_struct *work)
 	/* if there's another roc, start it now */
 	ieee80211_start_next_roc(local);
 
-	/* or scan maybe */
-	ieee80211_run_deferred_scan(local);
-
  out_unlock:
 	mutex_unlock(&local->mtx);
 }
@@ -455,7 +454,6 @@ void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata)
 	}
 
 	ieee80211_start_next_roc(local);
-	ieee80211_run_deferred_scan(local);
 	mutex_unlock(&local->mtx);
 
 	list_for_each_entry_safe(roc, tmp, &tmp_list, list) {
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 98c128be3827..5c572e7a1a71 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -78,6 +78,16 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 		if (err < 0) {
 			local->quiescing = false;
 			local->wowlan = false;
+			if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
+				mutex_lock(&local->sta_mtx);
+				list_for_each_entry(sta,
+						    &local->sta_list, list) {
+					clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
+				}
+				mutex_unlock(&local->sta_mtx);
+			}
+			ieee80211_wake_queues_by_reason(hw,
+					IEEE80211_QUEUE_STOP_REASON_SUSPEND);
 			return err;
 		} else if (err > 0) {
 			WARN_ON(err != 1);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6fd2cb0838c4..446a327b3de0 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1935,7 +1935,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 	    ether_addr_equal(sdata->vif.addr, hdr->addr3))
 		return RX_CONTINUE;
 
-	q = ieee80211_select_queue_80211(local, skb, hdr);
+	q = ieee80211_select_queue_80211(sdata, skb, hdr);
 	if (ieee80211_queue_stopped(&local->hw, q)) {
 		IEEE80211_IFSTA_MESH_CTR_INC(ifmsh, dropped_frames_congestion);
 		return RX_DROP_MONITOR;
@@ -3027,6 +3027,10 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	if (unlikely(local->quiescing || local->suspended))
 		goto drop;
 
+	/* We might be during a HW reconfig, prevent Rx for the same reason */
+	if (unlikely(local->in_reconfig))
+		goto drop;
+
 	/*
 	 * The same happens when we're not even started,
 	 * but that's worth a warning.
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 1df4019f294b..242ecde381f6 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1411,6 +1411,9 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 		if (ieee80211_sdata_running(sdata))
 			ieee80211_enable_keys(sdata);
 
+	local->in_reconfig = false;
+	barrier();
+
  wake_up:
 	/*
 	 * Clear the WLAN_STA_BLOCK_BA flag so new aggregation
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index c3d643a6536c..cea06e9f26f4 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -52,11 +52,11 @@ static int wme_downgrade_ac(struct sk_buff *skb)
 	}
 }
 
-static u16 ieee80211_downgrade_queue(struct ieee80211_local *local,
+static u16 ieee80211_downgrade_queue(struct ieee80211_sub_if_data *sdata,
 				     struct sk_buff *skb)
 {
 	/* in case we are a client verify acm is not set for this ac */
-	while (unlikely(local->wmm_acm & BIT(skb->priority))) {
+	while (unlikely(sdata->wmm_acm & BIT(skb->priority))) {
 		if (wme_downgrade_ac(skb)) {
 			/*
 			 * This should not really happen. The AP has marked all
@@ -73,10 +73,11 @@ static u16 ieee80211_downgrade_queue(struct ieee80211_local *local,
 }
 
 /* Indicate which queue to use for this fully formed 802.11 frame */
-u16 ieee80211_select_queue_80211(struct ieee80211_local *local,
+u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata,
 				 struct sk_buff *skb,
 				 struct ieee80211_hdr *hdr)
 {
+	struct ieee80211_local *local = sdata->local;
 	u8 *p;
 
 	if (local->hw.queues < IEEE80211_NUM_ACS)
@@ -94,7 +95,7 @@ u16 ieee80211_select_queue_80211(struct ieee80211_local *local,
 	p = ieee80211_get_qos_ctl(hdr);
 	skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK;
 
-	return ieee80211_downgrade_queue(local, skb);
+	return ieee80211_downgrade_queue(sdata, skb);
 }
 
 /* Indicate which queue to use. */
@@ -156,7 +157,7 @@ u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
 	 * data frame has */
 	skb->priority = cfg80211_classify8021d(skb);
 
-	return ieee80211_downgrade_queue(local, skb);
+	return ieee80211_downgrade_queue(sdata, skb);
 }
 
 void ieee80211_set_qos_hdr(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index ca80818b7b66..7fea4bb8acbc 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -15,7 +15,7 @@
 
 extern const int ieee802_1d_to_ac[8];
 
-u16 ieee80211_select_queue_80211(struct ieee80211_local *local,
+u16 ieee80211_select_queue_80211(struct ieee80211_sub_if_data *sdata,
 				 struct sk_buff *skb,
 				 struct ieee80211_hdr *hdr);
 u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,