Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller: "This is a re-do of the net-next pull request for the current merge window. The only difference from the one I made the other day is that this has Eliezer's interface renames and the timeout handling changes made based upon your feedback, as well as a few bug fixes that have trickeled in. Highlights: 1) Low latency device polling, eliminating the cost of interrupt handling and context switches. Allows direct polling of a network device from socket operations, such as recvmsg() and poll(). Currently ixgbe, mlx4, and bnx2x support this feature. Full high level description, performance numbers, and design in commit 0a4db187a999 ("Merge branch 'll_poll'") From Eliezer Tamir. 2) With the routing cache removed, ip_check_mc_rcu() gets exercised more than ever before in the case where we have lots of multicast addresses. Use a hash table instead of a simple linked list, from Eric Dumazet. 3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski, Marek Puzyniak, Michal Kazior, and Sujith Manoharan. 4) Support reporting the TUN device persist flag to userspace, from Pavel Emelyanov. 5) Allow controlling network device VF link state using netlink, from Rony Efraim. 6) Support GRE tunneling in openvswitch, from Pravin B Shelar. 7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from Daniel Borkmann and Eric Dumazet. 8) Allow controlling of TCP quickack behavior on a per-route basis, from Cong Wang. 9) Several bug fixes and improvements to vxlan from Stephen Hemminger, Pravin B Shelar, and Mike Rapoport. In particular, support receiving on multiple UDP ports. 10) Major cleanups, particular in the area of debugging and cookie lifetime handline, to the SCTP protocol code. From Daniel Borkmann. 11) Allow packets to cross network namespaces when traversing tunnel devices. From Nicolas Dichtel. 12) Allow monitoring netlink traffic via AF_PACKET sockets, in a manner akin to how we monitor real network traffic via ptype_all. From Daniel Borkmann. 13) Several bug fixes and improvements for the new alx device driver, from Johannes Berg. 14) Fix scalability issues in the netem packet scheduler's time queue, by using an rbtree. From Eric Dumazet. 15) Several bug fixes in TCP loss recovery handling, from Yuchung Cheng. 16) Add support for GSO segmentation of MPLS packets, from Simon Horman. 17) Make network notifiers have a real data type for the opaque pointer that's passed into them. Use this to properly handle network device flag changes in arp_netdev_event(). From Jiri Pirko and Timo Teräs. 18) Convert several drivers over to module_pci_driver(), from Peter Huewe. 19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a O(1) calculation instead. From Eric Dumazet. 20) Support setting of explicit tunnel peer addresses in ipv6, just like ipv4. From Nicolas Dichtel. 21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet. 22) Prevent a single high rate flow from overruning an individual cpu during RX packet processing via selective flow shedding. From Willem de Bruijn. 23) Don't use spinlocks in TCP md5 signing fast paths, from Eric Dumazet. 24) Don't just drop GSO packets which are above the TBF scheduler's burst limit, chop them up so they are in-bounds instead. Also from Eric Dumazet. 25) VLAN offloads are missed when configured on top of a bridge, fix from Vlad Yasevich. 26) Support IPV6 in ping sockets. From Lorenzo Colitti. 27) Receive flow steering targets should be updated at poll() time too, from David Majnemer. 28) Fix several corner case regressions in PMTU/redirect handling due to the routing cache removal, from Timo Teräs. 29) We have to be mindful of ipv4 mapped ipv6 sockets in upd_v6_push_pending_frames(). From Hannes Frederic Sowa. 30) Fix L2TP sequence number handling bugs, from James Chapman." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits) drivers/net: caif: fix wrong rtnl_is_locked() usage drivers/net: enic: release rtnl_lock on error-path vhost-net: fix use-after-free in vhost_net_flush net: mv643xx_eth: do not use port number as platform device id net: sctp: confirm route during forward progress virtio_net: fix race in RX VQ processing virtio: support unlocked queue poll net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit Documentation: Fix references to defunct linux-net@vger.kernel.org net/fs: change busy poll time accounting net: rename low latency sockets functions to busy poll bridge: fix some kernel warning in multicast timer sfc: Fix memory leak when discarding scattered packets sit: fix tunnel update via netlink dt:net:stmmac: Add dt specific phy reset callback support. dt:net:stmmac: Add support to dwmac version 3.610 and 3.710 dt:net:stmmac: Allocate platform data only if its NULL. net:stmmac: fix memleak in the open method ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available net: ipv6: fix wrong ping_v6_sendmsg return value ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2013-07-10 03:24:39 +0200
committer: Linus Torvalds <torvalds@linux-foundation.org> 2013-07-10 03:24:39 +0200
commit: 496322bc91e35007ed754184dcd447a02b6dd685 (patch)
tree: f5298d0a74c0a6e65c0e98050b594b8d020904c1 /net/mac80211
parent: Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux (diff)
parent: drivers/net: caif: fix wrong rtnl_is_locked() usage (diff)
download: linux-496322bc91e35007ed754184dcd447a02b6dd685.tar.xz
linux-496322bc91e35007ed754184dcd447a02b6dd685.zip
25 files changed, 566 insertions, 582 deletions
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index 0785e95c9924..be7614b9ed27 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -85,7 +85,7 @@ void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
 			*cpos++ = *pos++ ^ e[i];
 	}
 
-	for (i = 0; i < CCMP_MIC_LEN; i++)
+	for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++)
 		mic[i] = b[i] ^ s_0[i];
 }
 
@@ -123,7 +123,7 @@ int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
 		crypto_cipher_encrypt_one(tfm, a, a);
 	}
 
-	for (i = 0; i < CCMP_MIC_LEN; i++) {
+	for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) {
 		if ((mic[i] ^ s_0[i]) != a[i])
 			return -1;
 	}
@@ -138,7 +138,7 @@ struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
 
 	tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
 	if (!IS_ERR(tfm))
-		crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
+		crypto_cipher_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
 
 	return tfm;
 }
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 4fdb306e42e0..8184d121ff09 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -73,16 +73,19 @@ static int ieee80211_change_iface(struct wiphy *wiphy,
 		struct ieee80211_local *local = sdata->local;
 
 		if (ieee80211_sdata_running(sdata)) {
+			u32 mask = MONITOR_FLAG_COOK_FRAMES |
+				   MONITOR_FLAG_ACTIVE;
+
 			/*
-			 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
-			 * changed while the interface is up.
+			 * Prohibit MONITOR_FLAG_COOK_FRAMES and
+			 * MONITOR_FLAG_ACTIVE to be changed while the
+			 * interface is up.
 			 * Else we would need to add a lot of cruft
 			 * to update everything:
 			 *	cooked_mntrs, monitor and all fif_* counters
 			 *	reconfigure hardware
 			 */
-			if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
-			    (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
+			if ((*flags & mask) != (sdata->u.mntr_flags & mask))
 				return -EBUSY;
 
 			ieee80211_adjust_monitor_flags(sdata, -1);
@@ -444,7 +447,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	struct ieee80211_local *local = sdata->local;
 	struct timespec uptime;
 	u64 packets = 0;
-	int ac;
+	int i, ac;
 
 	sinfo->generation = sdata->local->sta_generation;
 
@@ -488,6 +491,17 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 			sinfo->signal = (s8)sta->last_signal;
 		sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
 	}
+	if (sta->chains) {
+		sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
+				 STATION_INFO_CHAIN_SIGNAL_AVG;
+
+		sinfo->chains = sta->chains;
+		for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
+			sinfo->chain_signal[i] = sta->chain_signal_last[i];
+			sinfo->chain_signal_avg[i] =
+				(s8) -ewma_read(&sta->chain_signal_avg[i]);
+		}
+	}
 
 	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
 	sta_set_rate_info_rx(sta, &sinfo->rxrate);
@@ -728,7 +742,7 @@ static void ieee80211_get_et_strings(struct wiphy *wiphy,
 
 	if (sset == ETH_SS_STATS) {
 		sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
-		memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
+		memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
 	}
 	drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
 }
@@ -1741,6 +1755,7 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
 	ifmsh->mesh_pp_id = setup->path_sel_proto;
 	ifmsh->mesh_pm_id = setup->path_metric;
 	ifmsh->user_mpm = setup->user_mpm;
+	ifmsh->mesh_auth_id = setup->auth_id;
 	ifmsh->security = IEEE80211_MESH_SEC_NONE;
 	if (setup->is_authenticated)
 		ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
@@ -1750,6 +1765,7 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
 	/* mcast rate setting in Mesh Node */
 	memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
 						sizeof(setup->mcast_rate));
+	sdata->vif.bss_conf.basic_rates = setup->basic_rates;
 
 	sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
 	sdata->vif.bss_conf.dtim_period = setup->dtim_period;
@@ -1862,6 +1878,8 @@ static int ieee80211_update_mesh_config(struct wiphy *wiphy,
 	if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
 		conf->dot11MeshAwakeWindowDuration =
 			nconf->dot11MeshAwakeWindowDuration;
+	if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
+		conf->plink_timeout = nconf->plink_timeout;
 	ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
 	return 0;
 }
@@ -2312,7 +2330,7 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 	enum ieee80211_smps_mode old_req;
 	int err;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	lockdep_assert_held(&sdata->wdev.mtx);
 
 	old_req = sdata->u.mgd.req_smps;
 	sdata->u.mgd.req_smps = smps_mode;
@@ -2369,9 +2387,9 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	local->dynamic_ps_forced_timeout = timeout;
 
 	/* no change, but if automatic follow powersave */
-	mutex_lock(&sdata->u.mgd.mtx);
+	sdata_lock(sdata);
 	__ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
-	mutex_unlock(&sdata->u.mgd.mtx);
+	sdata_unlock(sdata);
 
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
@@ -2809,7 +2827,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		    !rcu_access_pointer(sdata->bss->beacon))
 			need_offchan = true;
 		if (!ieee80211_is_action(mgmt->frame_control) ||
-		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
+		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
+		    mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED)
 			break;
 		rcu_read_lock();
 		sta = sta_info_get(sdata, mgmt->da);
@@ -2829,6 +2848,12 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		return -EOPNOTSUPP;
 	}
 
+	/* configurations requiring offchan cannot work if no channel has been
+	 * specified
+	 */
+	if (need_offchan && !chan)
+		return -EINVAL;
+
 	mutex_lock(&local->mtx);
 
 	/* Check if the operating channel is the requested channel */
@@ -2838,10 +2863,15 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 		rcu_read_lock();
 		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 
-		if (chanctx_conf)
-			need_offchan = chan != chanctx_conf->def.chan;
-		else
+		if (chanctx_conf) {
+			need_offchan = chan && (chan != chanctx_conf->def.chan);
+		} else if (!chan) {
+			ret = -EINVAL;
+			rcu_read_unlock();
+			goto out_unlock;
+		} else {
 			need_offchan = true;
+		}
 		rcu_read_unlock();
 	}
 
@@ -2901,19 +2931,8 @@ 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_WDEV_TO_SUB_IF(wdev);
 
 	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)
-				ifibss->auth_frame_registrations++;
-			else
-				ifibss->auth_frame_registrations--;
-		}
-		break;
 	case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
 		if (reg)
 			local->probe_req_reg++;
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 14abcf44f974..cafe614ef93d 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -228,9 +228,9 @@ static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
 		return -EOPNOTSUPP;
 
-	mutex_lock(&sdata->u.mgd.mtx);
+	sdata_lock(sdata);
 	err = __ieee80211_request_smps(sdata, smps_mode);
-	mutex_unlock(&sdata->u.mgd.mtx);
+	sdata_unlock(sdata);
 
 	return err;
 }
@@ -313,16 +313,16 @@ static ssize_t ieee80211_if_parse_tkip_mic_test(
 	case NL80211_IFTYPE_STATION:
 		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 		/* BSSID SA DA */
-		mutex_lock(&sdata->u.mgd.mtx);
+		sdata_lock(sdata);
 		if (!sdata->u.mgd.associated) {
-			mutex_unlock(&sdata->u.mgd.mtx);
+			sdata_unlock(sdata);
 			dev_kfree_skb(skb);
 			return -ENOTCONN;
 		}
 		memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 		memcpy(hdr->addr3, addr, ETH_ALEN);
-		mutex_unlock(&sdata->u.mgd.mtx);
+		sdata_unlock(sdata);
 		break;
 	default:
 		dev_kfree_skb(skb);
@@ -471,6 +471,8 @@ __IEEE80211_IF_FILE_W(tsf);
 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 
 #ifdef CONFIG_MAC80211_MESH
+IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
+
 /* Mesh stats attributes */
 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
@@ -480,7 +482,6 @@ IEEE80211_IF_FILE(dropped_frames_congestion,
 		  u.mesh.mshstats.dropped_frames_congestion, DEC);
 IEEE80211_IF_FILE(dropped_frames_no_route,
 		  u.mesh.mshstats.dropped_frames_no_route, DEC);
-IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
 
 /* Mesh parameters */
 IEEE80211_IF_FILE(dot11MeshMaxRetries,
@@ -583,6 +584,7 @@ static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD_MODE(tsf, 0600);
+	DEBUGFS_ADD_MODE(estab_plinks, 0400);
 }
 
 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
@@ -598,7 +600,6 @@ static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
 	MESHSTATS_ADD(dropped_frames_ttl);
 	MESHSTATS_ADD(dropped_frames_no_route);
 	MESHSTATS_ADD(dropped_frames_congestion);
-	MESHSTATS_ADD(estab_plinks);
 #undef MESHSTATS_ADD
 }
 
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 169664c122e2..b931c96a596f 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -146,7 +146,8 @@ static inline int drv_add_interface(struct ieee80211_local *local,
 
 	if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 		    (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
-		     !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF))))
+		     !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF) &&
+		     !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))))
 		return -EINVAL;
 
 	trace_drv_add_interface(local, sdata);
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index af8cee06e4f3..f83534f6a2ee 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -281,13 +281,14 @@ void ieee80211_ba_session_work(struct work_struct *work)
 				sta, tid, WLAN_BACK_RECIPIENT,
 				WLAN_REASON_UNSPECIFIED, true);
 
+		spin_lock_bh(&sta->lock);
+
 		tid_tx = sta->ampdu_mlme.tid_start_tx[tid];
 		if (tid_tx) {
 			/*
 			 * Assign it over to the normal tid_tx array
 			 * where it "goes live".
 			 */
-			spin_lock_bh(&sta->lock);
 
 			sta->ampdu_mlme.tid_start_tx[tid] = NULL;
 			/* could there be a race? */
@@ -300,6 +301,7 @@ void ieee80211_ba_session_work(struct work_struct *work)
 			ieee80211_tx_ba_session_handle_start(sta, tid);
 			continue;
 		}
+		spin_unlock_bh(&sta->lock);
 
 		tid_tx = rcu_dereference_protected_tid_tx(sta, tid);
 		if (tid_tx && test_and_clear_bit(HT_AGG_STATE_WANT_STOP,
@@ -429,9 +431,9 @@ void ieee80211_request_smps_work(struct work_struct *work)
 		container_of(work, struct ieee80211_sub_if_data,
 			     u.mgd.request_smps_work);
 
-	mutex_lock(&sdata->u.mgd.mtx);
+	sdata_lock(sdata);
 	__ieee80211_request_smps(sdata, sdata->u.mgd.driver_smps_mode);
-	mutex_unlock(&sdata->u.mgd.mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_request_smps(struct ieee80211_vif *vif,
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 170f9a7fa319..ea7b9c2c7e66 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -54,7 +54,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct beacon_data *presp;
 	int frame_len;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	/* Reset own TSF to allow time synchronization work. */
 	drv_reset_tsf(local, sdata);
@@ -74,14 +74,14 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	}
 
 	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&ifibss->mtx));
+					  lockdep_is_held(&sdata->wdev.mtx));
 	rcu_assign_pointer(ifibss->presp, NULL);
 	if (presp)
 		kfree_rcu(presp, rcu_head);
 
 	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
 
-	cfg80211_chandef_create(&chandef, chan, ifibss->channel_type);
+	chandef = ifibss->chandef;
 	if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) {
 		chandef.width = NL80211_CHAN_WIDTH_20;
 		chandef.center_freq1 = chan->center_freq;
@@ -176,6 +176,8 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	/* add HT capability and information IEs */
 	if (chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
+	    chandef.width != NL80211_CHAN_WIDTH_5 &&
+	    chandef.width != NL80211_CHAN_WIDTH_10 &&
 	    sband->ht_cap.ht_supported) {
 		pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
 						sband->ht_cap.cap);
@@ -263,7 +265,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	const struct cfg80211_bss_ies *ies;
 	u64 tsf;
 
-	lockdep_assert_held(&sdata->u.ibss.mtx);
+	sdata_assert_lock(sdata);
 
 	if (beacon_int < 10)
 		beacon_int = 10;
@@ -298,8 +300,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				  tsf, false);
 }
 
-static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta,
-						  bool auth)
+static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta)
 	__acquires(RCU)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
@@ -321,26 +322,19 @@ 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 && !sdata->u.ibss.auth_frame_registrations) {
-		ibss_dbg(sdata,
-			 "TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n",
-			 sdata->vif.addr, addr, sdata->u.ibss.bssid);
-		ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, 0, NULL, 0,
-				    addr, sdata->u.ibss.bssid, NULL, 0, 0, 0);
-	}
 	return sta;
 }
 
 static struct sta_info *
-ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
-		       const u8 *bssid, const u8 *addr,
-		       u32 supp_rates, bool auth)
+ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
+		       const u8 *addr, u32 supp_rates)
 	__acquires(RCU)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_supported_band *sband;
 	int band;
 
 	/*
@@ -380,10 +374,11 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 	sta->last_rx = jiffies;
 
 	/* make sure mandatory rates are always added */
+	sband = local->hw.wiphy->bands[band];
 	sta->sta.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(local, band);
+			ieee80211_mandatory_rates(sband);
 
-	return ieee80211_ibss_finish_sta(sta, auth);
+	return ieee80211_ibss_finish_sta(sta);
 }
 
 static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
@@ -405,10 +400,8 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 					size_t len)
 {
 	u16 auth_alg, auth_transaction;
-	struct sta_info *sta;
-	u8 deauth_frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	lockdep_assert_held(&sdata->u.ibss.mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 6)
 		return;
@@ -423,22 +416,6 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
 	if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1)
 		return;
 
-	sta_info_destroy_addr(sdata, mgmt->sa);
-	sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false);
-	rcu_read_unlock();
-
-	/*
-	 * if we have any problem in allocating the new station, we reply with a
-	 * DEAUTH frame to tell the other end that we had a problem
-	 */
-	if (!sta) {
-		ieee80211_send_deauth_disassoc(sdata, sdata->u.ibss.bssid,
-					       IEEE80211_STYPE_DEAUTH,
-					       WLAN_REASON_UNSPECIFIED, true,
-					       deauth_frame_buf);
-		return;
-	}
-
 	/*
 	 * IEEE 802.11 standard does not require authentication in IBSS
 	 * networks and most implementations do not seem to use it.
@@ -492,7 +469,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				prev_rates = sta->sta.supp_rates[band];
 				/* make sure mandatory rates are always added */
 				sta->sta.supp_rates[band] = supp_rates |
-					ieee80211_mandatory_rates(local, band);
+					ieee80211_mandatory_rates(sband);
 
 				if (sta->sta.supp_rates[band] != prev_rates) {
 					ibss_dbg(sdata,
@@ -504,7 +481,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			} else {
 				rcu_read_unlock();
 				sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid,
-						mgmt->sa, supp_rates, true);
+						mgmt->sa, supp_rates);
 			}
 		}
 
@@ -512,7 +489,9 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			set_sta_flag(sta, WLAN_STA_WME);
 
 		if (sta && elems->ht_operation && elems->ht_cap_elem &&
-		    sdata->u.ibss.channel_type != NL80211_CHAN_NO_HT) {
+		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
+		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_5 &&
+		    sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_10) {
 			/* we both use HT */
 			struct ieee80211_ht_cap htcap_ie;
 			struct cfg80211_chan_def chandef;
@@ -527,8 +506,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 			 * fall back to HT20 if we don't use or use
 			 * the other extension channel
 			 */
-			if (cfg80211_get_chandef_type(&chandef) !=
-						sdata->u.ibss.channel_type)
+			if (chandef.center_freq1 !=
+			    sdata->u.ibss.chandef.center_freq1)
 				htcap_ie.cap_info &=
 					cpu_to_le16(~IEEE80211_HT_CAP_SUP_WIDTH_20_40);
 
@@ -567,7 +546,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 	/* different channel */
 	if (sdata->u.ibss.fixed_channel &&
-	    sdata->u.ibss.channel != cbss->channel)
+	    sdata->u.ibss.chandef.chan != cbss->channel)
 		goto put_bss;
 
 	/* different SSID */
@@ -608,7 +587,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 		ieee80211_sta_join_ibss(sdata, bss);
 		supp_rates = ieee80211_sta_get_rates(local, elems, band, NULL);
 		ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa,
-				       supp_rates, true);
+				       supp_rates);
 		rcu_read_unlock();
 	}
 
@@ -624,6 +603,7 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_supported_band *sband;
 	int band;
 
 	/*
@@ -658,8 +638,9 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	sta->last_rx = jiffies;
 
 	/* make sure mandatory rates are always added */
+	sband = local->hw.wiphy->bands[band];
 	sta->sta.supp_rates[band] = supp_rates |
-			ieee80211_mandatory_rates(local, band);
+			ieee80211_mandatory_rates(sband);
 
 	spin_lock(&ifibss->incomplete_lock);
 	list_add(&sta->list, &ifibss->incomplete_stations);
@@ -673,7 +654,7 @@ static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
 	int active = 0;
 	struct sta_info *sta;
 
-	lockdep_assert_held(&sdata->u.ibss.mtx);
+	sdata_assert_lock(sdata);
 
 	rcu_read_lock();
 
@@ -699,7 +680,7 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	mod_timer(&ifibss->timer,
 		  round_jiffies(jiffies + IEEE80211_IBSS_MERGE_INTERVAL));
@@ -730,7 +711,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 	u16 capability;
 	int i;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	if (ifibss->fixed_bssid) {
 		memcpy(bssid, ifibss->bssid, ETH_ALEN);
@@ -755,7 +736,7 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata)
 		sdata->drop_unencrypted = 0;
 
 	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
-				  ifibss->channel, ifibss->basic_rates,
+				  ifibss->chandef.chan, ifibss->basic_rates,
 				  capability, 0, true);
 }
 
@@ -773,7 +754,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	int active_ibss;
 	u16 capability;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 	ibss_dbg(sdata, "sta_find_ibss (active_ibss=%d)\n", active_ibss);
@@ -787,7 +768,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
 	if (ifibss->fixed_bssid)
 		bssid = ifibss->bssid;
 	if (ifibss->fixed_channel)
-		chan = ifibss->channel;
+		chan = ifibss->chandef.chan;
 	if (!is_zero_ether_addr(ifibss->bssid))
 		bssid = ifibss->bssid;
 	cbss = cfg80211_get_bss(local->hw.wiphy, chan, bssid,
@@ -843,10 +824,10 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata,
 	struct beacon_data *presp;
 	u8 *pos, *end;
 
-	lockdep_assert_held(&ifibss->mtx);
+	sdata_assert_lock(sdata);
 
 	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&ifibss->mtx));
+					  lockdep_is_held(&sdata->wdev.mtx));
 
 	if (ifibss->state != IEEE80211_IBSS_MLME_JOINED ||
 	    len < 24 + 2 || !presp)
@@ -930,7 +911,7 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
-	mutex_lock(&sdata->u.ibss.mtx);
+	sdata_lock(sdata);
 
 	if (!sdata->u.ibss.ssid_len)
 		goto mgmt_out; /* not ready to merge yet */
@@ -953,7 +934,7 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	}
 
  mgmt_out:
-	mutex_unlock(&sdata->u.ibss.mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
@@ -961,7 +942,7 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct sta_info *sta;
 
-	mutex_lock(&ifibss->mtx);
+	sdata_lock(sdata);
 
 	/*
 	 * Work could be scheduled after scan or similar
@@ -978,7 +959,7 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 		list_del(&sta->list);
 		spin_unlock_bh(&ifibss->incomplete_lock);
 
-		ieee80211_ibss_finish_sta(sta, true);
+		ieee80211_ibss_finish_sta(sta);
 		rcu_read_unlock();
 		spin_lock_bh(&ifibss->incomplete_lock);
 	}
@@ -997,7 +978,7 @@ void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata)
 	}
 
  out:
-	mutex_unlock(&ifibss->mtx);
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_ibss_timer(unsigned long data)
@@ -1014,7 +995,6 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 
 	setup_timer(&ifibss->timer, ieee80211_ibss_timer,
 		    (unsigned long) sdata);
-	mutex_init(&ifibss->mtx);
 	INIT_LIST_HEAD(&ifibss->incomplete_stations);
 	spin_lock_init(&ifibss->incomplete_lock);
 }
@@ -1041,8 +1021,6 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 {
 	u32 changed = 0;
 
-	mutex_lock(&sdata->u.ibss.mtx);
-
 	if (params->bssid) {
 		memcpy(sdata->u.ibss.bssid, params->bssid, ETH_ALEN);
 		sdata->u.ibss.fixed_bssid = true;
@@ -1057,9 +1035,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 
 	sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 
-	sdata->u.ibss.channel = params->chandef.chan;
-	sdata->u.ibss.channel_type =
-		cfg80211_get_chandef_type(&params->chandef);
+	sdata->u.ibss.chandef = params->chandef;
 	sdata->u.ibss.fixed_channel = params->channel_fixed;
 
 	if (params->ie) {
@@ -1075,8 +1051,6 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 	memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len);
 	sdata->u.ibss.ssid_len = params->ssid_len;
 
-	mutex_unlock(&sdata->u.ibss.mtx);
-
 	/*
 	 * 802.11n-2009 9.13.3.1: In an IBSS, the HT Protection field is
 	 * reserved, but an HT STA shall protect HT transmissions as though
@@ -1112,8 +1086,6 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	struct sta_info *sta;
 	struct beacon_data *presp;
 
-	mutex_lock(&sdata->u.ibss.mtx);
-
 	active_ibss = ieee80211_sta_active_ibss(sdata);
 
 	if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
@@ -1122,7 +1094,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 		if (ifibss->privacy)
 			capability |= WLAN_CAPABILITY_PRIVACY;
 
-		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->channel,
+		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
 					ifibss->bssid, ifibss->ssid,
 					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
 					WLAN_CAPABILITY_PRIVACY,
@@ -1157,7 +1129,7 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 	/* remove beacon */
 	kfree(sdata->u.ibss.ie);
 	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&sdata->u.ibss.mtx));
+					  lockdep_is_held(&sdata->wdev.mtx));
 	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
 	sdata->vif.bss_conf.ibss_joined = false;
 	sdata->vif.bss_conf.ibss_creator = false;
@@ -1173,7 +1145,5 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 
 	del_timer_sync(&sdata->u.ibss.timer);
 
-	mutex_unlock(&sdata->u.ibss.mtx);
-
 	return 0;
 }
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9ca8e3278cc0..8412a303993a 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -94,6 +94,7 @@ struct ieee80211_bss {
 #define IEEE80211_MAX_SUPP_RATES 32
 	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 	size_t supp_rates_len;
+	struct ieee80211_rate *beacon_rate;
 
 	/*
 	 * During association, we save an ERP value from a probe response so
@@ -366,7 +367,7 @@ struct ieee80211_mgd_assoc_data {
 	u8 ssid_len;
 	u8 supp_rates_len;
 	bool wmm, uapsd;
-	bool have_beacon, need_beacon;
+	bool need_beacon;
 	bool synced;
 	bool timeout_started;
 
@@ -394,7 +395,6 @@ struct ieee80211_if_managed {
 	bool nullfunc_failed;
 	bool connection_loss;
 
-	struct mutex mtx;
 	struct cfg80211_bss *associated;
 	struct ieee80211_mgd_auth_data *auth_data;
 	struct ieee80211_mgd_assoc_data *assoc_data;
@@ -405,6 +405,7 @@ struct ieee80211_if_managed {
 
 	bool powersave; /* powersave requested for this iface */
 	bool broken_ap; /* AP is broken -- turn off powersave */
+	bool have_beacon;
 	u8 dtim_period;
 	enum ieee80211_smps_mode req_smps, /* requested smps mode */
 				 driver_smps_mode; /* smps mode request */
@@ -488,8 +489,6 @@ struct ieee80211_if_managed {
 struct ieee80211_if_ibss {
 	struct timer_list timer;
 
-	struct mutex mtx;
-
 	unsigned long last_scan_completed;
 
 	u32 basic_rates;
@@ -499,14 +498,12 @@ 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];
 	u8 ssid_len, ie_len;
 	u8 *ie;
-	struct ieee80211_channel *channel;
-	enum nl80211_channel_type channel_type;
+	struct cfg80211_chan_def chandef;
 
 	unsigned long ibss_join_req;
 	/* probe response/beacon for IBSS */
@@ -545,6 +542,7 @@ struct ieee80211_if_mesh {
 	struct timer_list mesh_path_root_timer;
 
 	unsigned long wrkq_flags;
+	unsigned long mbss_changed;
 
 	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
 	size_t mesh_id_len;
@@ -580,8 +578,6 @@ struct ieee80211_if_mesh {
 	bool accepting_plinks;
 	int num_gates;
 	struct beacon_data __rcu *beacon;
-	/* just protects beacon updates for now */
-	struct mutex mtx;
 	const u8 *ie;
 	u8 ie_len;
 	enum {
@@ -778,6 +774,26 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 	return container_of(p, struct ieee80211_sub_if_data, vif);
 }
 
+static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
+	__acquires(&sdata->wdev.mtx)
+{
+	mutex_lock(&sdata->wdev.mtx);
+	__acquire(&sdata->wdev.mtx);
+}
+
+static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
+	__releases(&sdata->wdev.mtx)
+{
+	mutex_unlock(&sdata->wdev.mtx);
+	__release(&sdata->wdev.mtx);
+}
+
+static inline void
+sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
+{
+	lockdep_assert_held(&sdata->wdev.mtx);
+}
+
 static inline enum ieee80211_band
 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
 {
@@ -1507,9 +1523,6 @@ static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
 	ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
 }
 
-u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
-			      enum ieee80211_band band);
-
 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
 void ieee80211_dynamic_ps_timer(unsigned long data);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 98d20c0f6fed..cc117591f678 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -159,7 +159,8 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
-static int ieee80211_verify_mac(struct ieee80211_sub_if_data *sdata, u8 *addr)
+static int ieee80211_verify_mac(struct ieee80211_sub_if_data *sdata, u8 *addr,
+				bool check_dup)
 {
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_sub_if_data *iter;
@@ -180,13 +181,16 @@ static int ieee80211_verify_mac(struct ieee80211_sub_if_data *sdata, u8 *addr)
 		((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) |
 		((u64)m[4] << 1*8) | ((u64)m[5] << 0*8);
 
+	if (!check_dup)
+		return ret;
 
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry(iter, &local->interfaces, list) {
 		if (iter == sdata)
 			continue;
 
-		if (iter->vif.type == NL80211_IFTYPE_MONITOR)
+		if (iter->vif.type == NL80211_IFTYPE_MONITOR &&
+		    !(iter->u.mntr_flags & MONITOR_FLAG_ACTIVE))
 			continue;
 
 		m = iter->vif.addr;
@@ -208,12 +212,17 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct sockaddr *sa = addr;
+	bool check_dup = true;
 	int ret;
 
 	if (ieee80211_sdata_running(sdata))
 		return -EBUSY;
 
-	ret = ieee80211_verify_mac(sdata, sa->sa_data);
+	if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+	    !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+		check_dup = false;
+
+	ret = ieee80211_verify_mac(sdata, sa->sa_data, check_dup);
 	if (ret)
 		return ret;
 
@@ -545,7 +554,11 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 			break;
 		}
 
-		if (local->monitors == 0 && local->open_count == 0) {
+		if (sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE) {
+			res = drv_add_interface(local, sdata);
+			if (res)
+				goto err_stop;
+		} else if (local->monitors == 0 && local->open_count == 0) {
 			res = ieee80211_add_virtual_monitor(local);
 			if (res)
 				goto err_stop;
@@ -923,7 +936,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 		mutex_lock(&local->mtx);
 		ieee80211_recalc_idle(local);
 		mutex_unlock(&local->mtx);
-		break;
+
+		if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+			break;
+
+		/* fall through */
 	default:
 		if (going_down)
 			drv_remove_interface(local, sdata);
@@ -1072,7 +1089,7 @@ static const struct net_device_ops ieee80211_monitorif_ops = {
 	.ndo_start_xmit		= ieee80211_monitor_start_xmit,
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
-	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_set_mac_address 	= ieee80211_change_mac,
 	.ndo_select_queue	= ieee80211_monitor_select_queue,
 };
 
@@ -1747,10 +1764,9 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 }
 
 static int netdev_notify(struct notifier_block *nb,
-			 unsigned long state,
-			 void *ndev)
+			 unsigned long state, void *ptr)
 {
-	struct net_device *dev = ndev;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	struct ieee80211_sub_if_data *sdata;
 
 	if (state != NETDEV_CHANGENAME)
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 67059b88fea5..e39cc91d0cf1 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -335,12 +335,12 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 	switch (cipher) {
 	case WLAN_CIPHER_SUITE_WEP40:
 	case WLAN_CIPHER_SUITE_WEP104:
-		key->conf.iv_len = WEP_IV_LEN;
-		key->conf.icv_len = WEP_ICV_LEN;
+		key->conf.iv_len = IEEE80211_WEP_IV_LEN;
+		key->conf.icv_len = IEEE80211_WEP_ICV_LEN;
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
-		key->conf.iv_len = TKIP_IV_LEN;
-		key->conf.icv_len = TKIP_ICV_LEN;
+		key->conf.iv_len = IEEE80211_TKIP_IV_LEN;
+		key->conf.icv_len = IEEE80211_TKIP_ICV_LEN;
 		if (seq) {
 			for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
 				key->u.tkip.rx[i].iv32 =
@@ -352,13 +352,13 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		spin_lock_init(&key->u.tkip.txlock);
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
-		key->conf.iv_len = CCMP_HDR_LEN;
-		key->conf.icv_len = CCMP_MIC_LEN;
+		key->conf.iv_len = IEEE80211_CCMP_HDR_LEN;
+		key->conf.icv_len = IEEE80211_CCMP_MIC_LEN;
 		if (seq) {
 			for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++)
-				for (j = 0; j < CCMP_PN_LEN; j++)
+				for (j = 0; j < IEEE80211_CCMP_PN_LEN; j++)
 					key->u.ccmp.rx_pn[i][j] =
-						seq[CCMP_PN_LEN - j - 1];
+						seq[IEEE80211_CCMP_PN_LEN - j - 1];
 		}
 		/*
 		 * Initialize AES key state here as an optimization so that
@@ -375,9 +375,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
 		key->conf.iv_len = 0;
 		key->conf.icv_len = sizeof(struct ieee80211_mmie);
 		if (seq)
-			for (j = 0; j < CMAC_PN_LEN; j++)
+			for (j = 0; j < IEEE80211_CMAC_PN_LEN; j++)
 				key->u.aes_cmac.rx_pn[j] =
-					seq[CMAC_PN_LEN - j - 1];
+					seq[IEEE80211_CMAC_PN_LEN - j - 1];
 		/*
 		 * Initialize AES key state here as an optimization so that
 		 * it does not need to be initialized for every packet.
@@ -740,13 +740,13 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
 			pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS];
 		else
 			pn = key->u.ccmp.rx_pn[tid];
-		memcpy(seq->ccmp.pn, pn, CCMP_PN_LEN);
+		memcpy(seq->ccmp.pn, pn, IEEE80211_CCMP_PN_LEN);
 		break;
 	case WLAN_CIPHER_SUITE_AES_CMAC:
 		if (WARN_ON(tid != 0))
 			return;
 		pn = key->u.aes_cmac.rx_pn;
-		memcpy(seq->aes_cmac.pn, pn, CMAC_PN_LEN);
+		memcpy(seq->aes_cmac.pn, pn, IEEE80211_CMAC_PN_LEN);
 		break;
 	}
 }
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index e8de3e6d7804..036d57e76a5e 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -19,17 +19,6 @@
 #define NUM_DEFAULT_KEYS 4
 #define NUM_DEFAULT_MGMT_KEYS 2
 
-#define WEP_IV_LEN		4
-#define WEP_ICV_LEN		4
-#define ALG_CCMP_KEY_LEN	16
-#define CCMP_HDR_LEN		8
-#define CCMP_MIC_LEN		8
-#define CCMP_TK_LEN		16
-#define CCMP_PN_LEN		6
-#define TKIP_IV_LEN		8
-#define TKIP_ICV_LEN		4
-#define CMAC_PN_LEN		6
-
 struct ieee80211_local;
 struct ieee80211_sub_if_data;
 struct sta_info;
@@ -93,13 +82,13 @@ struct ieee80211_key {
 			 * frames and the last counter is used with Robust
 			 * Management frames.
 			 */
-			u8 rx_pn[IEEE80211_NUM_TIDS + 1][CCMP_PN_LEN];
+			u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
 			struct crypto_cipher *tfm;
 			u32 replays; /* dot11RSNAStatsCCMPReplays */
 		} ccmp;
 		struct {
 			atomic64_t tx_pn;
-			u8 rx_pn[CMAC_PN_LEN];
+			u8 rx_pn[IEEE80211_CMAC_PN_LEN];
 			struct crypto_cipher *tfm;
 			u32 replays; /* dot11RSNAStatsCMACReplays */
 			u32 icverrors; /* dot11RSNAStatsCMACICVErrors */
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 8eae74ac4e1e..091088ac7890 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -331,7 +331,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 		return NOTIFY_DONE;
 
 	ifmgd = &sdata->u.mgd;
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	/* Copy the addresses to the bss_conf list */
 	ifa = idev->ifa_list;
@@ -349,7 +349,7 @@ static int ieee80211_ifa_changed(struct notifier_block *nb,
 		ieee80211_bss_info_change_notify(sdata,
 						 BSS_CHANGED_ARP_FILTER);
 
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 
 	return NOTIFY_DONE;
 }
@@ -686,8 +686,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 		return -EINVAL;
 
 #ifdef CONFIG_PM
-	if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) &&
-	    (!local->ops->suspend || !local->ops->resume))
+	if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume))
 		return -EINVAL;
 #endif
 
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 6952760881c8..447f41bbe744 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -271,8 +271,7 @@ int mesh_add_meshconf_ie(struct ieee80211_sub_if_data *sdata,
 	*pos++ = ifmsh->mesh_auth_id;
 	/* Mesh Formation Info - number of neighbors */
 	neighbors = atomic_read(&ifmsh->estab_plinks);
-	/* Number of neighbor mesh STAs or 15 whichever is smaller */
-	neighbors = (neighbors > 15) ? 15 : neighbors;
+	neighbors = min_t(int, neighbors, IEEE80211_MAX_MESH_PEERINGS);
 	*pos++ = neighbors << 1;
 	/* Mesh capability */
 	*pos = IEEE80211_MESHCONF_CAPAB_FORWARDING;
@@ -417,7 +416,9 @@ int mesh_add_ht_cap_ie(struct ieee80211_sub_if_data *sdata,
 
 	sband = local->hw.wiphy->bands[band];
 	if (!sband->ht_cap.ht_supported ||
-	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT ||
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_5 ||
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_10)
 		return 0;
 
 	if (skb_tailroom(skb) < 2 + sizeof(struct ieee80211_ht_cap))
@@ -573,7 +574,7 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	u32 changed;
 
-	ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
+	ieee80211_sta_expire(sdata, ifmsh->mshcfg.plink_timeout * HZ);
 	mesh_path_expire(sdata);
 
 	changed = mesh_accept_plinks_update(sdata);
@@ -697,38 +698,38 @@ out_free:
 }
 
 static int
-ieee80211_mesh_rebuild_beacon(struct ieee80211_if_mesh *ifmsh)
+ieee80211_mesh_rebuild_beacon(struct ieee80211_sub_if_data *sdata)
 {
 	struct beacon_data *old_bcn;
 	int ret;
 
-	mutex_lock(&ifmsh->mtx);
-
-	old_bcn = rcu_dereference_protected(ifmsh->beacon,
-					    lockdep_is_held(&ifmsh->mtx));
-	ret = ieee80211_mesh_build_beacon(ifmsh);
+	old_bcn = rcu_dereference_protected(sdata->u.mesh.beacon,
+					    lockdep_is_held(&sdata->wdev.mtx));
+	ret = ieee80211_mesh_build_beacon(&sdata->u.mesh);
 	if (ret)
 		/* just reuse old beacon */
-		goto out;
+		return ret;
 
 	if (old_bcn)
 		kfree_rcu(old_bcn, rcu_head);
-out:
-	mutex_unlock(&ifmsh->mtx);
-	return ret;
+	return 0;
 }
 
 void ieee80211_mbss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				       u32 changed)
 {
-	if (sdata->vif.bss_conf.enable_beacon &&
-	    (changed & (BSS_CHANGED_BEACON |
-			BSS_CHANGED_HT |
-			BSS_CHANGED_BASIC_RATES |
-			BSS_CHANGED_BEACON_INT)))
-		if (ieee80211_mesh_rebuild_beacon(&sdata->u.mesh))
-			return;
-	ieee80211_bss_info_change_notify(sdata, changed);
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	unsigned long bits = changed;
+	u32 bit;
+
+	if (!bits)
+		return;
+
+	/* if we race with running work, worst case this work becomes a noop */
+	for_each_set_bit(bit, &bits, sizeof(changed) * BITS_PER_BYTE)
+		set_bit(bit, &ifmsh->mbss_changed);
+	set_bit(MESH_WORK_MBSS_CHANGED, &ifmsh->wrkq_flags);
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
 
 int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
@@ -740,7 +741,6 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 		      BSS_CHANGED_HT |
 		      BSS_CHANGED_BASIC_RATES |
 		      BSS_CHANGED_BEACON_INT;
-	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 
 	local->fif_other_bss++;
 	/* mesh ifaces must set allmulti to forward mcast traffic */
@@ -748,7 +748,6 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	ieee80211_configure_filter(local);
 
 	ifmsh->mesh_cc_id = 0;	/* Disabled */
-	ifmsh->mesh_auth_id = 0;	/* Disabled */
 	/* register sync ops from extensible synchronization framework */
 	ifmsh->sync_ops = ieee80211_mesh_sync_ops_get(ifmsh->mesh_sp_id);
 	ifmsh->adjusting_tbtt = false;
@@ -759,8 +758,6 @@ int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.ht_operation_mode =
 				ifmsh->mshcfg.ht_opmode;
 	sdata->vif.bss_conf.enable_beacon = true;
-	sdata->vif.bss_conf.basic_rates =
-		ieee80211_mandatory_rates(local, band);
 
 	changed |= ieee80211_mps_local_status_update(sdata);
 
@@ -788,12 +785,10 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	sdata->vif.bss_conf.enable_beacon = false;
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
-	mutex_lock(&ifmsh->mtx);
 	bcn = rcu_dereference_protected(ifmsh->beacon,
-					lockdep_is_held(&ifmsh->mtx));
+					lockdep_is_held(&sdata->wdev.mtx));
 	rcu_assign_pointer(ifmsh->beacon, NULL);
 	kfree_rcu(bcn, rcu_head);
-	mutex_unlock(&ifmsh->mtx);
 
 	/* flush STAs and mpaths on this iface */
 	sta_info_flush(sdata);
@@ -806,14 +801,10 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	del_timer_sync(&sdata->u.mesh.housekeeping_timer);
 	del_timer_sync(&sdata->u.mesh.mesh_path_root_timer);
 	del_timer_sync(&sdata->u.mesh.mesh_path_timer);
-	/*
-	 * If the timer fired while we waited for it, it will have
-	 * requeued the work. Now the work will be running again
-	 * but will not rearm the timer again because it checks
-	 * whether the interface is running, which, at this point,
-	 * it no longer is.
-	 */
-	cancel_work_sync(&sdata->work);
+
+	/* clear any mesh work (for next join) we may have accrued */
+	ifmsh->wrkq_flags = 0;
+	ifmsh->mbss_changed = 0;
 
 	local->fif_other_bss--;
 	atomic_dec(&local->iff_allmultis);
@@ -954,6 +945,12 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_mgmt *mgmt;
 	u16 stype;
 
+	sdata_lock(sdata);
+
+	/* mesh already went down */
+	if (!sdata->wdev.mesh_id_len)
+		goto out;
+
 	rx_status = IEEE80211_SKB_RXCB(skb);
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
@@ -971,12 +968,42 @@ void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 		ieee80211_mesh_rx_mgmt_action(sdata, mgmt, skb->len, rx_status);
 		break;
 	}
+out:
+	sdata_unlock(sdata);
+}
+
+static void mesh_bss_info_changed(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	u32 bit, changed = 0;
+
+	for_each_set_bit(bit, &ifmsh->mbss_changed,
+			 sizeof(changed) * BITS_PER_BYTE) {
+		clear_bit(bit, &ifmsh->mbss_changed);
+		changed |= BIT(bit);
+	}
+
+	if (sdata->vif.bss_conf.enable_beacon &&
+	    (changed & (BSS_CHANGED_BEACON |
+			BSS_CHANGED_HT |
+			BSS_CHANGED_BASIC_RATES |
+			BSS_CHANGED_BEACON_INT)))
+		if (ieee80211_mesh_rebuild_beacon(sdata))
+			return;
+
+	ieee80211_bss_info_change_notify(sdata, changed);
 }
 
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 
+	sdata_lock(sdata);
+
+	/* mesh already went down */
+	if (!sdata->wdev.mesh_id_len)
+		goto out;
+
 	if (ifmsh->preq_queue_len &&
 	    time_after(jiffies,
 		       ifmsh->last_preq + msecs_to_jiffies(ifmsh->mshcfg.dot11MeshHWMPpreqMinInterval)))
@@ -996,6 +1023,11 @@ void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata)
 
 	if (test_and_clear_bit(MESH_WORK_DRIFT_ADJUST, &ifmsh->wrkq_flags))
 		mesh_sync_adjust_tbtt(sdata);
+
+	if (test_and_clear_bit(MESH_WORK_MBSS_CHANGED, &ifmsh->wrkq_flags))
+		mesh_bss_info_changed(sdata);
+out:
+	sdata_unlock(sdata);
 }
 
 void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local)
@@ -1041,7 +1073,6 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
 	spin_lock_init(&ifmsh->mesh_preq_queue_lock);
 	spin_lock_init(&ifmsh->sync_offset_lock);
 	RCU_INIT_POINTER(ifmsh->beacon, NULL);
-	mutex_init(&ifmsh->mtx);
 
 	sdata->vif.bss_conf.bssid = zero_addr;
 }
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index da158774eebb..2bc7fd2f787d 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -58,6 +58,7 @@ enum mesh_path_flags {
  * @MESH_WORK_ROOT: the mesh root station needs to send a frame
  * @MESH_WORK_DRIFT_ADJUST: time to compensate for clock drift relative to other
  * mesh nodes
+ * @MESH_WORK_MBSS_CHANGED: rebuild beacon and notify driver of BSS changes
  */
 enum mesh_deferred_task_flags {
 	MESH_WORK_HOUSEKEEPING,
@@ -65,6 +66,7 @@ enum mesh_deferred_task_flags {
 	MESH_WORK_GROW_MPP_TABLE,
 	MESH_WORK_ROOT,
 	MESH_WORK_DRIFT_ADJUST,
+	MESH_WORK_MBSS_CHANGED,
 };
 
 /**
@@ -188,7 +190,6 @@ struct mesh_rmc {
 	u32 idx_mask;
 };
 
-#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
 #define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
 
 #define MESH_PATH_EXPIRE (600 * HZ)
@@ -324,14 +325,14 @@ static inline
 u32 mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
 {
 	atomic_inc(&sdata->u.mesh.estab_plinks);
-	return mesh_accept_plinks_update(sdata);
+	return mesh_accept_plinks_update(sdata) | BSS_CHANGED_BEACON;
 }
 
 static inline
 u32 mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
 {
 	atomic_dec(&sdata->u.mesh.estab_plinks);
-	return mesh_accept_plinks_update(sdata);
+	return mesh_accept_plinks_update(sdata) | BSS_CHANGED_BEACON;
 }
 
 static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 09bebed99416..02c05fa15c20 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -154,8 +154,14 @@ static u32 mesh_set_ht_prot_mode(struct ieee80211_sub_if_data *sdata)
 	u16 ht_opmode;
 	bool non_ht_sta = false, ht20_sta = false;
 
-	if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+	switch (sdata->vif.bss_conf.chandef.width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
 		return 0;
+	default:
+		break;
+	}
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(sta, &local->sta_list, list) {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 741448b30825..ae31968d42d3 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -91,41 +91,6 @@ MODULE_PARM_DESC(probe_wait_ms,
 #define IEEE80211_SIGNAL_AVE_MIN_COUNT	4
 
 /*
- * All cfg80211 functions have to be called outside a locked
- * section so that they can acquire a lock themselves... This
- * is much simpler than queuing up things in cfg80211, but we
- * do need some indirection for that here.
- */
-enum rx_mgmt_action {
-	/* no action required */
-	RX_MGMT_NONE,
-
-	/* caller must call cfg80211_send_deauth() */
-	RX_MGMT_CFG80211_DEAUTH,
-
-	/* caller must call cfg80211_send_disassoc() */
-	RX_MGMT_CFG80211_DISASSOC,
-
-	/* caller must call cfg80211_send_rx_auth() */
-	RX_MGMT_CFG80211_RX_AUTH,
-
-	/* caller must call cfg80211_send_rx_assoc() */
-	RX_MGMT_CFG80211_RX_ASSOC,
-
-	/* caller must call cfg80211_send_assoc_timeout() */
-	RX_MGMT_CFG80211_ASSOC_TIMEOUT,
-
-	/* used when a processed beacon causes a deauth */
-	RX_MGMT_CFG80211_TX_DEAUTH,
-};
-
-/* utils */
-static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
-{
-	lockdep_assert_held(&ifmgd->mtx);
-}
-
-/*
  * We can have multiple work items (and connection probing)
  * scheduling this timer, but we need to take care to only
  * reschedule it when it should fire _earlier_ than it was
@@ -135,13 +100,14 @@ static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
  * has happened -- the work that runs from this timer will
  * do that.
  */
-static void run_again(struct ieee80211_if_managed *ifmgd, unsigned long timeout)
+static void run_again(struct ieee80211_sub_if_data *sdata,
+		      unsigned long timeout)
 {
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
-	if (!timer_pending(&ifmgd->timer) ||
-	    time_before(timeout, ifmgd->timer.expires))
-		mod_timer(&ifmgd->timer, timeout);
+	if (!timer_pending(&sdata->u.mgd.timer) ||
+	    time_before(timeout, sdata->u.mgd.timer.expires))
+		mod_timer(&sdata->u.mgd.timer, timeout);
 }
 
 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata)
@@ -224,6 +190,12 @@ static u32 chandef_downgrade(struct cfg80211_chan_def *c)
 		c->width = NL80211_CHAN_WIDTH_20_NOHT;
 		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
 		break;
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+		WARN_ON_ONCE(1);
+		/* keep c->width */
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
 	}
 
 	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
@@ -652,7 +624,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_channel *chan;
 	u32 rates = 0;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
@@ -914,6 +886,10 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 
 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
 					IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
+
+	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
+		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+
 	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
 			    IEEE80211_STA_CONNECTION_POLL))
 		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE;
@@ -962,7 +938,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (!ifmgd->associated)
 		goto out;
 
@@ -985,7 +961,7 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 					IEEE80211_QUEUE_STOP_REASON_CSA);
  out:
 	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
@@ -1036,7 +1012,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	const struct ieee80211_ht_operation *ht_oper;
 	int secondary_channel_offset = -1;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (!cbss)
 		return;
@@ -1390,6 +1366,9 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
 			  IEEE80211_STA_CONNECTION_POLL))
 		return false;
 
+	if (!mgd->have_beacon)
+		return false;
+
 	rcu_read_lock();
 	sta = sta_info_get(sdata, mgd->bssid);
 	if (sta)
@@ -1798,7 +1777,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_led_assoc(local, 1);
 
-	if (sdata->u.mgd.assoc_data->have_beacon) {
+	if (sdata->u.mgd.have_beacon) {
 		/*
 		 * If the AP is buggy we may get here with no DTIM period
 		 * known, so assume it's 1 which is the only safe assumption
@@ -1806,8 +1785,10 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		 * probably just won't work at all.
 		 */
 		bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1;
-		bss_info_changed |= BSS_CHANGED_DTIM_PERIOD;
+		bss_conf->beacon_rate = bss->beacon_rate;
+		bss_info_changed |= BSS_CHANGED_BEACON_INFO;
 	} else {
+		bss_conf->beacon_rate = NULL;
 		bss_conf->dtim_period = 0;
 	}
 
@@ -1842,7 +1823,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	u32 changed = 0;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (WARN_ON_ONCE(tx && !frame_buf))
 		return;
@@ -1930,6 +1911,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	del_timer_sync(&sdata->u.mgd.chswitch_timer);
 
 	sdata->vif.bss_conf.dtim_period = 0;
+	sdata->vif.bss_conf.beacon_rate = NULL;
+
+	ifmgd->have_beacon = false;
 
 	ifmgd->flags = 0;
 	ieee80211_vif_release_channel(sdata);
@@ -2051,7 +2035,7 @@ static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
 	}
 
 	ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
-	run_again(ifmgd, ifmgd->probe_timeout);
+	run_again(sdata, ifmgd->probe_timeout);
 	if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
 		ieee80211_flush_queues(sdata->local, sdata);
 }
@@ -2065,7 +2049,7 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	if (!ifmgd->associated)
 		goto out;
@@ -2119,7 +2103,7 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 	ifmgd->probe_send_count = 0;
 	ieee80211_mgd_probe_ap_send(sdata);
  out:
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
@@ -2135,7 +2119,7 @@ struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
 	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
 		return NULL;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (ifmgd->associated)
 		cbss = ifmgd->associated;
@@ -2168,9 +2152,9 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (!ifmgd->associated) {
-		mutex_unlock(&ifmgd->mtx);
+		sdata_unlock(sdata);
 		return;
 	}
 
@@ -2181,13 +2165,10 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
-	mutex_unlock(&ifmgd->mtx);
 
-	/*
-	 * must be outside lock due to cfg80211,
-	 * but that's not a problem.
-	 */
-	cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
+	cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+			      IEEE80211_DEAUTH_FRAME_LEN);
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_beacon_connection_loss_work(struct work_struct *work)
@@ -2254,7 +2235,7 @@ static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	if (!assoc) {
 		sta_info_destroy_addr(sdata, auth_data->bss->bssid);
@@ -2295,27 +2276,26 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
 			    auth_data->key_idx, tx_flags);
 }
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
-		       struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
+				   struct ieee80211_mgmt *mgmt, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 bssid[ETH_ALEN];
 	u16 auth_alg, auth_transaction, status_code;
 	struct sta_info *sta;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 6)
-		return RX_MGMT_NONE;
+		return;
 
 	if (!ifmgd->auth_data || ifmgd->auth_data->done)
-		return RX_MGMT_NONE;
+		return;
 
 	memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN);
 
 	if (!ether_addr_equal(bssid, mgmt->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
 	auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
@@ -2327,14 +2307,15 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 			   mgmt->sa, auth_alg, ifmgd->auth_data->algorithm,
 			   auth_transaction,
 			   ifmgd->auth_data->expected_transaction);
-		return RX_MGMT_NONE;
+		return;
 	}
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		sdata_info(sdata, "%pM denied authentication (status %d)\n",
 			   mgmt->sa, status_code);
 		ieee80211_destroy_auth_data(sdata, false);
-		return RX_MGMT_CFG80211_RX_AUTH;
+		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
+		return;
 	}
 
 	switch (ifmgd->auth_data->algorithm) {
@@ -2347,20 +2328,20 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		if (ifmgd->auth_data->expected_transaction != 4) {
 			ieee80211_auth_challenge(sdata, mgmt, len);
 			/* need another frame */
-			return RX_MGMT_NONE;
+			return;
 		}
 		break;
 	default:
 		WARN_ONCE(1, "invalid auth alg %d",
 			  ifmgd->auth_data->algorithm);
-		return RX_MGMT_NONE;
+		return;
 	}
 
 	sdata_info(sdata, "authenticated\n");
 	ifmgd->auth_data->done = true;
 	ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC;
 	ifmgd->auth_data->timeout_started = true;
-	run_again(ifmgd, ifmgd->auth_data->timeout);
+	run_again(sdata, ifmgd->auth_data->timeout);
 
 	if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE &&
 	    ifmgd->auth_data->expected_transaction != 2) {
@@ -2368,7 +2349,8 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 		 * Report auth frame to user space for processing since another
 		 * round of Authentication frames is still needed.
 		 */
-		return RX_MGMT_CFG80211_RX_AUTH;
+		cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
+		return;
 	}
 
 	/* move station state to auth */
@@ -2384,30 +2366,29 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
 	}
 	mutex_unlock(&sdata->local->sta_mtx);
 
-	return RX_MGMT_CFG80211_RX_AUTH;
+	cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
+	return;
  out_err:
 	mutex_unlock(&sdata->local->sta_mtx);
 	/* ignore frame -- wait for timeout */
-	return RX_MGMT_NONE;
 }
 
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
-			 struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_mgmt *mgmt, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	const u8 *bssid = NULL;
 	u16 reason_code;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 2)
-		return RX_MGMT_NONE;
+		return;
 
 	if (!ifmgd->associated ||
 	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	bssid = ifmgd->associated->bssid;
 
@@ -2418,25 +2399,24 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-	return RX_MGMT_CFG80211_DEAUTH;
+	cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 }
 
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
-			   struct ieee80211_mgmt *mgmt, size_t len)
+static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_mgmt *mgmt, size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u16 reason_code;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (len < 24 + 2)
-		return RX_MGMT_NONE;
+		return;
 
 	if (!ifmgd->associated ||
 	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
 
@@ -2445,7 +2425,7 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
 
 	ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
-	return RX_MGMT_CFG80211_DISASSOC;
+	cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
 }
 
 static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
@@ -2495,7 +2475,7 @@ static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	if (!assoc) {
 		sta_info_destroy_addr(sdata, assoc_data->bss->bssid);
@@ -2749,10 +2729,9 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	return ret;
 }
 
-static enum rx_mgmt_action __must_check
-ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
-			     struct ieee80211_mgmt *mgmt, size_t len,
-			     struct cfg80211_bss **bss)
+static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_mgmt *mgmt,
+					 size_t len)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data;
@@ -2760,13 +2739,14 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	struct ieee802_11_elems elems;
 	u8 *pos;
 	bool reassoc;
+	struct cfg80211_bss *bss;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (!assoc_data)
-		return RX_MGMT_NONE;
+		return;
 	if (!ether_addr_equal(assoc_data->bss->bssid, mgmt->bssid))
-		return RX_MGMT_NONE;
+		return;
 
 	/*
 	 * AssocResp and ReassocResp have identical structure, so process both
@@ -2774,7 +2754,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	 */
 
 	if (len < 24 + 6)
-		return RX_MGMT_NONE;
+		return;
 
 	reassoc = ieee80211_is_reassoc_req(mgmt->frame_control);
 	capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
@@ -2801,22 +2781,22 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		assoc_data->timeout = jiffies + msecs_to_jiffies(ms);
 		assoc_data->timeout_started = true;
 		if (ms > IEEE80211_ASSOC_TIMEOUT)
-			run_again(ifmgd, assoc_data->timeout);
-		return RX_MGMT_NONE;
+			run_again(sdata, assoc_data->timeout);
+		return;
 	}
 
-	*bss = assoc_data->bss;
+	bss = assoc_data->bss;
 
 	if (status_code != WLAN_STATUS_SUCCESS) {
 		sdata_info(sdata, "%pM denied association (code=%d)\n",
 			   mgmt->sa, status_code);
 		ieee80211_destroy_assoc_data(sdata, false);
 	} else {
-		if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) {
+		if (!ieee80211_assoc_success(sdata, bss, mgmt, len)) {
 			/* oops -- internal error -- send timeout for now */
 			ieee80211_destroy_assoc_data(sdata, false);
-			cfg80211_put_bss(sdata->local->hw.wiphy, *bss);
-			return RX_MGMT_CFG80211_ASSOC_TIMEOUT;
+			cfg80211_assoc_timeout(sdata->dev, bss);
+			return;
 		}
 		sdata_info(sdata, "associated\n");
 
@@ -2828,7 +2808,7 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 		ieee80211_destroy_assoc_data(sdata, true);
 	}
 
-	return RX_MGMT_CFG80211_RX_ASSOC;
+	cfg80211_rx_assoc_resp(sdata->dev, bss, (u8 *)mgmt, len);
 }
 
 static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
@@ -2840,23 +2820,8 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 	int freq;
 	struct ieee80211_bss *bss;
 	struct ieee80211_channel *channel;
-	bool need_ps = false;
-
-	lockdep_assert_held(&sdata->u.mgd.mtx);
 
-	if ((sdata->u.mgd.associated &&
-	     ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid)) ||
-	    (sdata->u.mgd.assoc_data &&
-	     ether_addr_equal(mgmt->bssid,
-			      sdata->u.mgd.assoc_data->bss->bssid))) {
-		/* not previously set so we may need to recalc */
-		need_ps = sdata->u.mgd.associated && !sdata->u.mgd.dtim_period;
-
-		if (elems->tim && !elems->parse_error) {
-			const struct ieee80211_tim_ie *tim_ie = elems->tim;
-			sdata->u.mgd.dtim_period = tim_ie->dtim_period;
-		}
-	}
+	sdata_assert_lock(sdata);
 
 	if (elems->ds_params)
 		freq = ieee80211_channel_to_frequency(elems->ds_params[0],
@@ -2871,19 +2836,15 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 	bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
 					channel);
-	if (bss)
+	if (bss) {
 		ieee80211_rx_bss_put(local, bss);
+		sdata->vif.bss_conf.beacon_rate = bss->beacon_rate;
+	}
 
 	if (!sdata->u.mgd.associated ||
 	    !ether_addr_equal(mgmt->bssid, sdata->u.mgd.associated->bssid))
 		return;
 
-	if (need_ps) {
-		mutex_lock(&local->iflist_mtx);
-		ieee80211_recalc_ps(local, -1);
-		mutex_unlock(&local->iflist_mtx);
-	}
-
 	ieee80211_sta_process_chanswitch(sdata, rx_status->mactime,
 					 elems, true);
 
@@ -2901,7 +2862,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 
 	ifmgd = &sdata->u.mgd;
 
-	ASSERT_MGD_MTX(ifmgd);
+	sdata_assert_lock(sdata);
 
 	if (!ether_addr_equal(mgmt->da, sdata->vif.addr))
 		return; /* ignore ProbeResp to foreign address */
@@ -2926,7 +2887,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
 		ifmgd->auth_data->tries = 0;
 		ifmgd->auth_data->timeout = jiffies;
 		ifmgd->auth_data->timeout_started = true;
-		run_again(ifmgd, ifmgd->auth_data->timeout);
+		run_again(sdata, ifmgd->auth_data->timeout);
 	}
 }
 
@@ -2951,10 +2912,9 @@ static const u64 care_about_ies =
 	(1ULL << WLAN_EID_HT_CAPABILITY) |
 	(1ULL << WLAN_EID_HT_OPERATION);
 
-static enum rx_mgmt_action
-ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
-			 struct ieee80211_mgmt *mgmt, size_t len,
-			 u8 *deauth_buf, struct ieee80211_rx_status *rx_status)
+static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_mgmt *mgmt, size_t len,
+				     struct ieee80211_rx_status *rx_status)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
@@ -2969,24 +2929,25 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	u8 erp_value = 0;
 	u32 ncrc;
 	u8 *bssid;
+	u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	/* Process beacon from the current BSS */
 	baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
 	if (baselen > len)
-		return RX_MGMT_NONE;
+		return;
 
 	rcu_read_lock();
 	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 	if (!chanctx_conf) {
 		rcu_read_unlock();
-		return RX_MGMT_NONE;
+		return;
 	}
 
 	if (rx_status->freq != chanctx_conf->def.chan->center_freq) {
 		rcu_read_unlock();
-		return RX_MGMT_NONE;
+		return;
 	}
 	chan = chanctx_conf->def.chan;
 	rcu_read_unlock();
@@ -2997,7 +2958,11 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				       len - baselen, false, &elems);
 
 		ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems);
-		ifmgd->assoc_data->have_beacon = true;
+		if (elems.tim && !elems.parse_error) {
+			const struct ieee80211_tim_ie *tim_ie = elems.tim;
+			ifmgd->dtim_period = tim_ie->dtim_period;
+		}
+		ifmgd->have_beacon = true;
 		ifmgd->assoc_data->need_beacon = false;
 		if (local->hw.flags & IEEE80211_HW_TIMING_BEACON_ONLY) {
 			sdata->vif.bss_conf.sync_tsf =
@@ -3013,13 +2978,13 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		/* continue assoc process */
 		ifmgd->assoc_data->timeout = jiffies;
 		ifmgd->assoc_data->timeout_started = true;
-		run_again(ifmgd, ifmgd->assoc_data->timeout);
-		return RX_MGMT_NONE;
+		run_again(sdata, ifmgd->assoc_data->timeout);
+		return;
 	}
 
 	if (!ifmgd->associated ||
 	    !ether_addr_equal(mgmt->bssid, ifmgd->associated->bssid))
-		return RX_MGMT_NONE;
+		return;
 	bssid = ifmgd->associated->bssid;
 
 	/* Track average RSSI from the Beacon frames of the current AP */
@@ -3165,7 +3130,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	}
 
 	if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
-		return RX_MGMT_NONE;
+		return;
 	ifmgd->beacon_crc = ncrc;
 	ifmgd->beacon_crc_valid = true;
 
@@ -3179,7 +3144,7 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	 * If we haven't had a beacon before, tell the driver about the
 	 * DTIM period (and beacon timing if desired) now.
 	 */
-	if (!bss_conf->dtim_period) {
+	if (!ifmgd->have_beacon) {
 		/* a few bogus AP send dtim_period = 0 or no TIM IE */
 		if (elems.tim)
 			bss_conf->dtim_period = elems.tim->dtim_period ?: 1;
@@ -3198,7 +3163,14 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 				sdata->vif.bss_conf.sync_dtim_count = 0;
 		}
 
-		changed |= BSS_CHANGED_DTIM_PERIOD;
+		changed |= BSS_CHANGED_BEACON_INFO;
+		ifmgd->have_beacon = true;
+
+		mutex_lock(&local->iflist_mtx);
+		ieee80211_recalc_ps(local, -1);
+		mutex_unlock(&local->iflist_mtx);
+
+		ieee80211_recalc_ps_vif(sdata);
 	}
 
 	if (elems.erp_info) {
@@ -3220,7 +3192,9 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
 				       WLAN_REASON_DEAUTH_LEAVING,
 				       true, deauth_buf);
-		return RX_MGMT_CFG80211_TX_DEAUTH;
+		cfg80211_tx_mlme_mgmt(sdata->dev, deauth_buf,
+				      sizeof(deauth_buf));
+		return;
 	}
 
 	if (sta && elems.opmode_notif)
@@ -3237,19 +3211,13 @@ ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 						       elems.pwr_constr_elem);
 
 	ieee80211_bss_info_change_notify(sdata, changed);
-
-	return RX_MGMT_NONE;
 }
 
 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				  struct sk_buff *skb)
 {
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct ieee80211_rx_status *rx_status;
 	struct ieee80211_mgmt *mgmt;
-	struct cfg80211_bss *bss = NULL;
-	enum rx_mgmt_action rma = RX_MGMT_NONE;
-	u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN];
 	u16 fc;
 	struct ieee802_11_elems elems;
 	int ies_len;
@@ -3258,28 +3226,27 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	switch (fc & IEEE80211_FCTL_STYPE) {
 	case IEEE80211_STYPE_BEACON:
-		rma = ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
-					       deauth_buf, rx_status);
+		ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len, rx_status);
 		break;
 	case IEEE80211_STYPE_PROBE_RESP:
 		ieee80211_rx_mgmt_probe_resp(sdata, skb);
 		break;
 	case IEEE80211_STYPE_AUTH:
-		rma = ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len);
+		ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_DEAUTH:
-		rma = ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
+		ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_DISASSOC:
-		rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
+		ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_ASSOC_RESP:
 	case IEEE80211_STYPE_REASSOC_RESP:
-		rma = ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len, &bss);
+		ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_ACTION:
 		if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) {
@@ -3325,34 +3292,7 @@ void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 		}
 		break;
 	}
-	mutex_unlock(&ifmgd->mtx);
-
-	switch (rma) {
-	case RX_MGMT_NONE:
-		/* no action */
-		break;
-	case RX_MGMT_CFG80211_DEAUTH:
-		cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_DISASSOC:
-		cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_RX_AUTH:
-		cfg80211_send_rx_auth(sdata->dev, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_RX_ASSOC:
-		cfg80211_send_rx_assoc(sdata->dev, bss, (u8 *)mgmt, skb->len);
-		break;
-	case RX_MGMT_CFG80211_ASSOC_TIMEOUT:
-		cfg80211_send_assoc_timeout(sdata->dev, mgmt->bssid);
-		break;
-	case RX_MGMT_CFG80211_TX_DEAUTH:
-		cfg80211_send_deauth(sdata->dev, deauth_buf,
-				     sizeof(deauth_buf));
-		break;
-	default:
-		WARN(1, "unexpected: %d", rma);
-	}
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_sta_timer(unsigned long data)
@@ -3366,20 +3306,13 @@ static void ieee80211_sta_timer(unsigned long data)
 static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
 					  u8 *bssid, u8 reason, bool tx)
 {
-	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
 	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason,
 			       tx, frame_buf);
-	mutex_unlock(&ifmgd->mtx);
 
-	/*
-	 * must be outside lock due to cfg80211,
-	 * but that's not a problem.
-	 */
-	cfg80211_send_deauth(sdata->dev, frame_buf, IEEE80211_DEAUTH_FRAME_LEN);
-
-	mutex_lock(&ifmgd->mtx);
+	cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+			      IEEE80211_DEAUTH_FRAME_LEN);
 }
 
 static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
@@ -3389,7 +3322,7 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data;
 	u32 tx_flags = 0;
 
-	lockdep_assert_held(&ifmgd->mtx);
+	sdata_assert_lock(sdata);
 
 	if (WARN_ON_ONCE(!auth_data))
 		return -EINVAL;
@@ -3462,7 +3395,7 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata)
 	if (tx_flags == 0) {
 		auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
 		ifmgd->auth_data->timeout_started = true;
-		run_again(ifmgd, auth_data->timeout);
+		run_again(sdata, auth_data->timeout);
 	} else {
 		auth_data->timeout_started = false;
 	}
@@ -3475,7 +3408,7 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data;
 	struct ieee80211_local *local = sdata->local;
 
-	lockdep_assert_held(&sdata->u.mgd.mtx);
+	sdata_assert_lock(sdata);
 
 	assoc_data->tries++;
 	if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) {
@@ -3499,7 +3432,7 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata)
 	if (!(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)) {
 		assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT;
 		assoc_data->timeout_started = true;
-		run_again(&sdata->u.mgd, assoc_data->timeout);
+		run_again(sdata, assoc_data->timeout);
 	} else {
 		assoc_data->timeout_started = false;
 	}
@@ -3524,7 +3457,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 
 	if (ifmgd->status_received) {
 		__le16 fc = ifmgd->status_fc;
@@ -3536,7 +3469,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 			if (status_acked) {
 				ifmgd->auth_data->timeout =
 					jiffies + IEEE80211_AUTH_TIMEOUT_SHORT;
-				run_again(ifmgd, ifmgd->auth_data->timeout);
+				run_again(sdata, ifmgd->auth_data->timeout);
 			} else {
 				ifmgd->auth_data->timeout = jiffies - 1;
 			}
@@ -3547,7 +3480,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 			if (status_acked) {
 				ifmgd->assoc_data->timeout =
 					jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT;
-				run_again(ifmgd, ifmgd->assoc_data->timeout);
+				run_again(sdata, ifmgd->assoc_data->timeout);
 			} else {
 				ifmgd->assoc_data->timeout = jiffies - 1;
 			}
@@ -3570,30 +3503,22 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 
 			ieee80211_destroy_auth_data(sdata, false);
 
-			mutex_unlock(&ifmgd->mtx);
-			cfg80211_send_auth_timeout(sdata->dev, bssid);
-			mutex_lock(&ifmgd->mtx);
+			cfg80211_auth_timeout(sdata->dev, bssid);
 		}
 	} else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started)
-		run_again(ifmgd, ifmgd->auth_data->timeout);
+		run_again(sdata, ifmgd->auth_data->timeout);
 
 	if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started &&
 	    time_after(jiffies, ifmgd->assoc_data->timeout)) {
-		if ((ifmgd->assoc_data->need_beacon &&
-		     !ifmgd->assoc_data->have_beacon) ||
+		if ((ifmgd->assoc_data->need_beacon && !ifmgd->have_beacon) ||
 		    ieee80211_do_assoc(sdata)) {
-			u8 bssid[ETH_ALEN];
-
-			memcpy(bssid, ifmgd->assoc_data->bss->bssid, ETH_ALEN);
+			struct cfg80211_bss *bss = ifmgd->assoc_data->bss;
 
 			ieee80211_destroy_assoc_data(sdata, false);
-
-			mutex_unlock(&ifmgd->mtx);
-			cfg80211_send_assoc_timeout(sdata->dev, bssid);
-			mutex_lock(&ifmgd->mtx);
+			cfg80211_assoc_timeout(sdata->dev, bss);
 		}
 	} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
-		run_again(ifmgd, ifmgd->assoc_data->timeout);
+		run_again(sdata, ifmgd->assoc_data->timeout);
 
 	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
 			    IEEE80211_STA_CONNECTION_POLL) &&
@@ -3627,7 +3552,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 					false);
 			}
 		} else if (time_is_after_jiffies(ifmgd->probe_timeout))
-			run_again(ifmgd, ifmgd->probe_timeout);
+			run_again(sdata, ifmgd->probe_timeout);
 		else if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
 			mlme_dbg(sdata,
 				 "Failed to send nullfunc to AP %pM after %dms, disconnecting\n",
@@ -3656,7 +3581,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 		}
 	}
 
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 static void ieee80211_sta_bcn_mon_timer(unsigned long data)
@@ -3717,9 +3642,9 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 
-	mutex_lock(&ifmgd->mtx);
+	sdata_lock(sdata);
 	if (!ifmgd->associated) {
-		mutex_unlock(&ifmgd->mtx);
+		sdata_unlock(sdata);
 		return;
 	}
 
@@ -3730,10 +3655,10 @@ void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 					      ifmgd->associated->bssid,
 					      WLAN_REASON_UNSPECIFIED,
 					      true);
-		mutex_unlock(&ifmgd->mtx);
+		sdata_unlock(sdata);
 		return;
 	}
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 #endif
 
@@ -3765,8 +3690,6 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 	ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len;
 	ifmgd->p2p_noa_index = -1;
 
-	mutex_init(&ifmgd->mtx);
-
 	if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
 		ifmgd->req_smps = IEEE80211_SMPS_AUTOMATIC;
 	else
@@ -3923,6 +3846,12 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 	 */
 	ret = ieee80211_vif_use_channel(sdata, &chandef,
 					IEEE80211_CHANCTX_SHARED);
+
+	/* don't downgrade for 5 and 10 MHz channels, though. */
+	if (chandef.width == NL80211_CHAN_WIDTH_5 ||
+	    chandef.width == NL80211_CHAN_WIDTH_10)
+		return ret;
+
 	while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
 		ifmgd->flags |= chandef_downgrade(&chandef);
 		ret = ieee80211_vif_use_channel(sdata, &chandef,
@@ -4122,8 +4051,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 
 	/* try to authenticate/probe */
 
-	mutex_lock(&ifmgd->mtx);
-
 	if ((ifmgd->auth_data && !ifmgd->auth_data->done) ||
 	    ifmgd->assoc_data) {
 		err = -EBUSY;
@@ -4143,8 +4070,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
 
-		__cfg80211_send_deauth(sdata->dev, frame_buf,
-				       sizeof(frame_buf));
+		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+				      sizeof(frame_buf));
 	}
 
 	sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid);
@@ -4161,8 +4088,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 
 	/* hold our own reference */
 	cfg80211_ref_bss(local->hw.wiphy, auth_data->bss);
-	err = 0;
-	goto out_unlock;
+	return 0;
 
  err_clear:
 	memset(ifmgd->bssid, 0, ETH_ALEN);
@@ -4170,9 +4096,6 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	ifmgd->auth_data = NULL;
  err_free:
 	kfree(auth_data);
- out_unlock:
-	mutex_unlock(&ifmgd->mtx);
-
 	return err;
 }
 
@@ -4203,8 +4126,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	assoc_data->ssid_len = ssidie[1];
 	rcu_read_unlock();
 
-	mutex_lock(&ifmgd->mtx);
-
 	if (ifmgd->associated) {
 		u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
@@ -4212,8 +4133,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 				       WLAN_REASON_UNSPECIFIED,
 				       false, frame_buf);
 
-		__cfg80211_send_deauth(sdata->dev, frame_buf,
-				       sizeof(frame_buf));
+		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+				      sizeof(frame_buf));
 	}
 
 	if (ifmgd->auth_data && !ifmgd->auth_data->done) {
@@ -4360,6 +4281,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 
 	ifmgd->assoc_data = assoc_data;
 	ifmgd->dtim_period = 0;
+	ifmgd->have_beacon = false;
 
 	err = ieee80211_prep_connection(sdata, req->bss, true);
 	if (err)
@@ -4391,7 +4313,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 			ifmgd->dtim_period = tim->dtim_period;
 			dtim_count = tim->dtim_count;
 		}
-		assoc_data->have_beacon = true;
+		ifmgd->have_beacon = true;
 		assoc_data->timeout = jiffies;
 		assoc_data->timeout_started = true;
 
@@ -4407,7 +4329,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	}
 	rcu_read_unlock();
 
-	run_again(ifmgd, assoc_data->timeout);
+	run_again(sdata, assoc_data->timeout);
 
 	if (bss->corrupt_data) {
 		char *corrupt_type = "data";
@@ -4423,17 +4345,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 			   corrupt_type);
 	}
 
-	err = 0;
-	goto out;
+	return 0;
  err_clear:
 	memset(ifmgd->bssid, 0, ETH_ALEN);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
 	ifmgd->assoc_data = NULL;
  err_free:
 	kfree(assoc_data);
- out:
-	mutex_unlock(&ifmgd->mtx);
-
 	return err;
 }
 
@@ -4445,8 +4363,6 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 	bool tx = !req->local_state_change;
 	bool report_frame = false;
 
-	mutex_lock(&ifmgd->mtx);
-
 	sdata_info(sdata,
 		   "deauthenticating from %pM by local choice (reason=%d)\n",
 		   req->bssid, req->reason_code);
@@ -4458,7 +4374,6 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 					       req->reason_code, tx,
 					       frame_buf);
 		ieee80211_destroy_auth_data(sdata, false);
-		mutex_unlock(&ifmgd->mtx);
 
 		report_frame = true;
 		goto out;
@@ -4470,12 +4385,11 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
 				       req->reason_code, tx, frame_buf);
 		report_frame = true;
 	}
-	mutex_unlock(&ifmgd->mtx);
 
  out:
 	if (report_frame)
-		__cfg80211_send_deauth(sdata->dev, frame_buf,
-				       IEEE80211_DEAUTH_FRAME_LEN);
+		cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+				      IEEE80211_DEAUTH_FRAME_LEN);
 
 	return 0;
 }
@@ -4487,18 +4401,14 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 	u8 bssid[ETH_ALEN];
 	u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
 
-	mutex_lock(&ifmgd->mtx);
-
 	/*
 	 * cfg80211 should catch this ... but it's racy since
 	 * we can receive a disassoc frame, process it, hand it
 	 * to cfg80211 while that's in a locked section already
 	 * trying to tell us that the user wants to disconnect.
 	 */
-	if (ifmgd->associated != req->bss) {
-		mutex_unlock(&ifmgd->mtx);
+	if (ifmgd->associated != req->bss)
 		return -ENOLINK;
-	}
 
 	sdata_info(sdata,
 		   "disassociating from %pM by local choice (reason=%d)\n",
@@ -4508,10 +4418,9 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
 	ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC,
 			       req->reason_code, !req->local_state_change,
 			       frame_buf);
-	mutex_unlock(&ifmgd->mtx);
 
-	__cfg80211_send_disassoc(sdata->dev, frame_buf,
-				 IEEE80211_DEAUTH_FRAME_LEN);
+	cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+			      IEEE80211_DEAUTH_FRAME_LEN);
 
 	return 0;
 }
@@ -4531,13 +4440,16 @@ void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata)
 	cancel_work_sync(&ifmgd->csa_connection_drop_work);
 	cancel_work_sync(&ifmgd->chswitch_work);
 
-	mutex_lock(&ifmgd->mtx);
-	if (ifmgd->assoc_data)
+	sdata_lock(sdata);
+	if (ifmgd->assoc_data) {
+		struct cfg80211_bss *bss = ifmgd->assoc_data->bss;
 		ieee80211_destroy_assoc_data(sdata, false);
+		cfg80211_assoc_timeout(sdata->dev, bss);
+	}
 	if (ifmgd->auth_data)
 		ieee80211_destroy_auth_data(sdata, false);
 	del_timer_sync(&ifmgd->timer);
-	mutex_unlock(&ifmgd->mtx);
+	sdata_unlock(sdata);
 }
 
 void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index a02bef35b134..30d58d2d13e2 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -397,8 +397,14 @@ static void rate_idx_match_mask(struct ieee80211_tx_rate *rate,
 			return;
 
 		/* if HT BSS, and we handle a data frame, also try HT rates */
-		if (chan_width == NL80211_CHAN_WIDTH_20_NOHT)
+		switch (chan_width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
 			return;
+		default:
+			break;
+		}
 
 		alt_rate.idx = 0;
 		/* keep protection flags */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 8e2952620256..23dbcfc69b3b 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -258,6 +258,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 	pos += 2;
 
 	if (status->flag & RX_FLAG_HT) {
+		unsigned int stbc;
+
 		rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
 		*pos++ = local->hw.radiotap_mcs_details;
 		*pos = 0;
@@ -267,6 +269,8 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 			*pos |= IEEE80211_RADIOTAP_MCS_BW_40;
 		if (status->flag & RX_FLAG_HT_GF)
 			*pos |= IEEE80211_RADIOTAP_MCS_FMT_GF;
+		stbc = (status->flag & RX_FLAG_STBC_MASK) >> RX_FLAG_STBC_SHIFT;
+		*pos |= stbc << IEEE80211_RADIOTAP_MCS_STBC_SHIFT;
 		pos++;
 		*pos++ = status->rate_idx;
 	}
@@ -1372,6 +1376,7 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 	struct sk_buff *skb = rx->skb;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	int i;
 
 	if (!sta)
 		return RX_CONTINUE;
@@ -1422,6 +1427,19 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 		ewma_add(&sta->avg_signal, -status->signal);
 	}
 
+	if (status->chains) {
+		sta->chains = status->chains;
+		for (i = 0; i < ARRAY_SIZE(status->chain_signal); i++) {
+			int signal = status->chain_signal[i];
+
+			if (!(status->chains & BIT(i)))
+				continue;
+
+			sta->chain_signal_last[i] = signal;
+			ewma_add(&sta->chain_signal_avg[i], -signal);
+		}
+	}
+
 	/*
 	 * Change STA power saving mode only at the end of a frame
 	 * exchange sequence.
@@ -1608,7 +1626,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 			entry->ccmp = 1;
 			memcpy(entry->last_pn,
 			       rx->key->u.ccmp.rx_pn[queue],
-			       CCMP_PN_LEN);
+			       IEEE80211_CCMP_PN_LEN);
 		}
 		return RX_QUEUED;
 	}
@@ -1627,21 +1645,21 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 	 * (IEEE 802.11i, 8.3.3.4.5) */
 	if (entry->ccmp) {
 		int i;
-		u8 pn[CCMP_PN_LEN], *rpn;
+		u8 pn[IEEE80211_CCMP_PN_LEN], *rpn;
 		int queue;
 		if (!rx->key || rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP)
 			return RX_DROP_UNUSABLE;
-		memcpy(pn, entry->last_pn, CCMP_PN_LEN);
-		for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
+		memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN);
+		for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) {
 			pn[i]++;
 			if (pn[i])
 				break;
 		}
 		queue = rx->security_idx;
 		rpn = rx->key->u.ccmp.rx_pn[queue];
-		if (memcmp(pn, rpn, CCMP_PN_LEN))
+		if (memcmp(pn, rpn, IEEE80211_CCMP_PN_LEN))
 			return RX_DROP_UNUSABLE;
-		memcpy(entry->last_pn, pn, CCMP_PN_LEN);
+		memcpy(entry->last_pn, pn, IEEE80211_CCMP_PN_LEN);
 	}
 
 	skb_pull(rx->skb, ieee80211_hdrlen(fc));
@@ -1729,27 +1747,21 @@ static int ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx)
 		if (unlikely(!ieee80211_has_protected(fc) &&
 			     ieee80211_is_unicast_robust_mgmt_frame(rx->skb) &&
 			     rx->key)) {
-			if (ieee80211_is_deauth(fc))
-				cfg80211_send_unprot_deauth(rx->sdata->dev,
-							    rx->skb->data,
-							    rx->skb->len);
-			else if (ieee80211_is_disassoc(fc))
-				cfg80211_send_unprot_disassoc(rx->sdata->dev,
-							      rx->skb->data,
-							      rx->skb->len);
+			if (ieee80211_is_deauth(fc) ||
+			    ieee80211_is_disassoc(fc))
+				cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev,
+							     rx->skb->data,
+							     rx->skb->len);
 			return -EACCES;
 		}
 		/* BIP does not use Protected field, so need to check MMIE */
 		if (unlikely(ieee80211_is_multicast_robust_mgmt_frame(rx->skb) &&
 			     ieee80211_get_mmie_keyidx(rx->skb) < 0)) {
-			if (ieee80211_is_deauth(fc))
-				cfg80211_send_unprot_deauth(rx->sdata->dev,
-							    rx->skb->data,
-							    rx->skb->len);
-			else if (ieee80211_is_disassoc(fc))
-				cfg80211_send_unprot_disassoc(rx->sdata->dev,
-							      rx->skb->data,
-							      rx->skb->len);
+			if (ieee80211_is_deauth(fc) ||
+			    ieee80211_is_disassoc(fc))
+				cfg80211_rx_unprot_mlme_mgmt(rx->sdata->dev,
+							     rx->skb->data,
+							     rx->skb->len);
 			return -EACCES;
 		}
 		/*
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 99b103921a4b..1b122a79b0d8 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -140,6 +140,15 @@ ieee80211_bss_info_update(struct ieee80211_local *local,
 			bss->valid_data |= IEEE80211_BSS_VALID_WMM;
 	}
 
+	if (beacon) {
+		struct ieee80211_supported_band *sband =
+			local->hw.wiphy->bands[rx_status->band];
+		if (!(rx_status->flag & RX_FLAG_HT) &&
+		    !(rx_status->flag & RX_FLAG_VHT))
+			bss->beacon_rate =
+				&sband->bitrates[rx_status->rate_idx];
+	}
+
 	return bss;
 }
 
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 11216bc13b27..aeb967a0aeed 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -149,6 +149,7 @@ static void cleanup_single_sta(struct sta_info *sta)
 	 * directly by station destruction.
 	 */
 	for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
+		kfree(sta->ampdu_mlme.tid_start_tx[i]);
 		tid_tx = rcu_dereference_raw(sta->ampdu_mlme.tid_tx[i]);
 		if (!tid_tx)
 			continue;
@@ -346,6 +347,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	if (ieee80211_vif_is_mesh(&sdata->vif) &&
 	    !sdata->u.mesh.user_mpm)
 		init_timer(&sta->plink_timer);
+	sta->nonpeer_pm = NL80211_MESH_POWER_ACTIVE;
 #endif
 
 	memcpy(sta->sta.addr, addr, ETH_ALEN);
@@ -358,6 +360,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	do_posix_clock_monotonic_gettime(&uptime);
 	sta->last_connected = uptime.tv_sec;
 	ewma_init(&sta->avg_signal, 1024, 8);
+	for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++)
+		ewma_init(&sta->chain_signal_avg[i], 1024, 8);
 
 	if (sta_prepare_rate_control(local, sta, gfp)) {
 		kfree(sta);
@@ -1130,6 +1134,7 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata,
 	 * ends the poll/service period.
 	 */
 	info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER |
+		       IEEE80211_TX_CTL_PS_RESPONSE |
 		       IEEE80211_TX_STATUS_EOSP |
 		       IEEE80211_TX_CTL_REQ_TX_STATUS;
 
@@ -1267,7 +1272,8 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta,
 			 * STA may still remain is PS mode after this frame
 			 * exchange.
 			 */
-			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
+			info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER |
+				       IEEE80211_TX_CTL_PS_RESPONSE;
 
 			/*
 			 * Use MoreData flag to indicate whether there are
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index adc30045f99e..4208dbd5861f 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -203,6 +203,7 @@ struct tid_ampdu_rx {
  *	driver requested to close until the work for it runs
  * @mtx: mutex to protect all TX data (except non-NULL assignments
  *	to tid_tx[idx], which are protected by the sta spinlock)
+ *	tid_start_tx is also protected by sta->lock.
  */
 struct sta_ampdu_mlme {
 	struct mutex mtx;
@@ -297,6 +298,9 @@ struct sta_ampdu_mlme {
  * @rcu_head: RCU head used for freeing this station struct
  * @cur_max_bandwidth: maximum bandwidth to use for TX to the station,
  *	taken from HT/VHT capabilities or VHT operating mode notification
+ * @chains: chains ever used for RX from this station
+ * @chain_signal_last: last signal (per chain)
+ * @chain_signal_avg: signal average (per chain)
  */
 struct sta_info {
 	/* General information, mostly static */
@@ -344,6 +348,11 @@ struct sta_info {
 	int last_signal;
 	struct ewma avg_signal;
 	int last_ack_signal;
+
+	u8 chains;
+	s8 chain_signal_last[IEEE80211_MAX_CHAINS];
+	struct ewma chain_signal_avg[IEEE80211_MAX_CHAINS];
+
 	/* Plus 1 for non-QoS frames */
 	__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 9972e07a2f96..4105d0ca963e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -398,13 +398,14 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 	if (ieee80211_has_order(hdr->frame_control))
 		return TX_CONTINUE;
 
+	if (tx->local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
+		info->hw_queue = tx->sdata->vif.cab_queue;
+
 	/* no stations in PS mode */
 	if (!atomic_read(&ps->num_sta_ps))
 		return TX_CONTINUE;
 
 	info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM;
-	if (tx->local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
-		info->hw_queue = tx->sdata->vif.cab_queue;
 
 	/* device releases frame after DTIM beacon */
 	if (!(tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING))
@@ -1789,12 +1790,6 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 		break;
 #ifdef CONFIG_MAC80211_MESH
 	case NL80211_IFTYPE_MESH_POINT:
-		if (!sdata->u.mesh.mshcfg.dot11MeshTTL) {
-			/* Do not send frames with mesh_ttl == 0 */
-			sdata->u.mesh.mshstats.dropped_frames_ttl++;
-			goto fail_rcu;
-		}
-
 		if (!is_multicast_ether_addr(skb->data)) {
 			struct sta_info *next_hop;
 			bool mpp_lookup = true;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 72e6292955bb..22654452a561 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -560,6 +560,9 @@ void ieee80211_iterate_active_interfaces(
 	list_for_each_entry(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_MONITOR:
+			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+				continue;
+			break;
 		case NL80211_IFTYPE_AP_VLAN:
 			continue;
 		default:
@@ -598,6 +601,9 @@ void ieee80211_iterate_active_interfaces_atomic(
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_MONITOR:
+			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+				continue;
+			break;
 		case NL80211_IFTYPE_AP_VLAN:
 			continue;
 		default:
@@ -1072,32 +1078,6 @@ void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
 	ieee80211_set_wmm_default(sdata, true);
 }
 
-u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
-			      enum ieee80211_band band)
-{
-	struct ieee80211_supported_band *sband;
-	struct ieee80211_rate *bitrates;
-	u32 mandatory_rates;
-	enum ieee80211_rate_flags mandatory_flag;
-	int i;
-
-	sband = local->hw.wiphy->bands[band];
-	if (WARN_ON(!sband))
-		return 1;
-
-	if (band == IEEE80211_BAND_2GHZ)
-		mandatory_flag = IEEE80211_RATE_MANDATORY_B;
-	else
-		mandatory_flag = IEEE80211_RATE_MANDATORY_A;
-
-	bitrates = sband->bitrates;
-	mandatory_rates = 0;
-	for (i = 0; i < sband->n_bitrates; i++)
-		if (bitrates[i].flags & mandatory_flag)
-			mandatory_rates |= BIT(i);
-	return mandatory_rates;
-}
-
 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 			 u16 transaction, u16 auth_alg, u16 status,
 			 const u8 *extra, size_t extra_len, const u8 *da,
@@ -1604,12 +1584,13 @@ int ieee80211_reconfig(struct ieee80211_local *local)
 				   BSS_CHANGED_ARP_FILTER |
 				   BSS_CHANGED_PS;
 
-			if (sdata->u.mgd.dtim_period)
-				changed |= BSS_CHANGED_DTIM_PERIOD;
+			/* Re-send beacon info report to the driver */
+			if (sdata->u.mgd.have_beacon)
+				changed |= BSS_CHANGED_BEACON_INFO;
 
-			mutex_lock(&sdata->u.mgd.mtx);
+			sdata_lock(sdata);
 			ieee80211_bss_info_change_notify(sdata, changed);
-			mutex_unlock(&sdata->u.mgd.mtx);
+			sdata_unlock(sdata);
 			break;
 		case NL80211_IFTYPE_ADHOC:
 			changed |= BSS_CHANGED_IBSS;
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 171344d4eb7c..97c289414e32 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -396,7 +396,7 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
 	new_bw = ieee80211_sta_cur_vht_bw(sta);
 	if (new_bw != sta->sta.bandwidth) {
 		sta->sta.bandwidth = new_bw;
-		changed |= IEEE80211_RC_NSS_CHANGED;
+		changed |= IEEE80211_RC_BW_CHANGED;
 	}
 
  change:
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index c04d401dae92..6ee2b5863572 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -28,7 +28,7 @@
 int ieee80211_wep_init(struct ieee80211_local *local)
 {
 	/* start WEP IV from a random value */
-	get_random_bytes(&local->wep_iv, WEP_IV_LEN);
+	get_random_bytes(&local->wep_iv, IEEE80211_WEP_IV_LEN);
 
 	local->wep_tx_tfm = crypto_alloc_cipher("arc4", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(local->wep_tx_tfm)) {
@@ -98,20 +98,21 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
 
 	hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
 
-	if (WARN_ON(skb_tailroom(skb) < WEP_ICV_LEN ||
-		    skb_headroom(skb) < WEP_IV_LEN))
+	if (WARN_ON(skb_tailroom(skb) < IEEE80211_WEP_ICV_LEN ||
+		    skb_headroom(skb) < IEEE80211_WEP_IV_LEN))
 		return NULL;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	newhdr = skb_push(skb, WEP_IV_LEN);
-	memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
+	newhdr = skb_push(skb, IEEE80211_WEP_IV_LEN);
+	memmove(newhdr, newhdr + IEEE80211_WEP_IV_LEN, hdrlen);
 
 	/* the HW only needs room for the IV, but not the actual IV */
 	if (info->control.hw_key &&
 	    (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
 		return newhdr + hdrlen;
 
-	skb_set_network_header(skb, skb_network_offset(skb) + WEP_IV_LEN);
+	skb_set_network_header(skb, skb_network_offset(skb) +
+				    IEEE80211_WEP_IV_LEN);
 	ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen);
 	return newhdr + hdrlen;
 }
@@ -125,8 +126,8 @@ static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
 	unsigned int hdrlen;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, WEP_IV_LEN);
+	memmove(skb->data + IEEE80211_WEP_IV_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_WEP_IV_LEN);
 }
 
 
@@ -146,7 +147,7 @@ int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
 	put_unaligned(icv, (__le32 *)(data + data_len));
 
 	crypto_cipher_setkey(tfm, rc4key, klen);
-	for (i = 0; i < data_len + WEP_ICV_LEN; i++)
+	for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++)
 		crypto_cipher_encrypt_one(tfm, data + i, data + i);
 
 	return 0;
@@ -172,7 +173,7 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local,
 	if (!iv)
 		return -1;
 
-	len = skb->len - (iv + WEP_IV_LEN - skb->data);
+	len = skb->len - (iv + IEEE80211_WEP_IV_LEN - skb->data);
 
 	/* Prepend 24-bit IV to RC4 key */
 	memcpy(rc4key, iv, 3);
@@ -181,10 +182,10 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local,
 	memcpy(rc4key + 3, key, keylen);
 
 	/* Add room for ICV */
-	skb_put(skb, WEP_ICV_LEN);
+	skb_put(skb, IEEE80211_WEP_ICV_LEN);
 
 	return ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3,
-					  iv + WEP_IV_LEN, len);
+					  iv + IEEE80211_WEP_IV_LEN, len);
 }
 
 
@@ -201,11 +202,11 @@ int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
 		return -1;
 
 	crypto_cipher_setkey(tfm, rc4key, klen);
-	for (i = 0; i < data_len + WEP_ICV_LEN; i++)
+	for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++)
 		crypto_cipher_decrypt_one(tfm, data + i, data + i);
 
 	crc = cpu_to_le32(~crc32_le(~0, data, data_len));
-	if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
+	if (memcmp(&crc, data + data_len, IEEE80211_WEP_ICV_LEN) != 0)
 		/* ICV mismatch */
 		return -1;
 
@@ -237,10 +238,10 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local,
 		return -1;
 
 	hdrlen = ieee80211_hdrlen(hdr->frame_control);
-	if (skb->len < hdrlen + WEP_IV_LEN + WEP_ICV_LEN)
+	if (skb->len < hdrlen + IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN)
 		return -1;
 
-	len = skb->len - hdrlen - WEP_IV_LEN - WEP_ICV_LEN;
+	len = skb->len - hdrlen - IEEE80211_WEP_IV_LEN - IEEE80211_WEP_ICV_LEN;
 
 	keyidx = skb->data[hdrlen + 3] >> 6;
 
@@ -256,16 +257,16 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local,
 	memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
 
 	if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
-				       skb->data + hdrlen + WEP_IV_LEN,
-				       len))
+				       skb->data + hdrlen +
+				       IEEE80211_WEP_IV_LEN, len))
 		ret = -1;
 
 	/* Trim ICV */
-	skb_trim(skb, skb->len - WEP_ICV_LEN);
+	skb_trim(skb, skb->len - IEEE80211_WEP_ICV_LEN);
 
 	/* Remove IV */
-	memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, WEP_IV_LEN);
+	memmove(skb->data + IEEE80211_WEP_IV_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_WEP_IV_LEN);
 
 	return ret;
 }
@@ -305,13 +306,14 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
 		if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key))
 			return RX_DROP_UNUSABLE;
 	} else if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
-		if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) + WEP_IV_LEN))
+		if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) +
+					    IEEE80211_WEP_IV_LEN))
 			return RX_DROP_UNUSABLE;
 		if (rx->sta && ieee80211_wep_is_weak_iv(rx->skb, rx->key))
 			rx->sta->wep_weak_iv_count++;
 		ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
 		/* remove ICV */
-		if (pskb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN))
+		if (pskb_trim(rx->skb, rx->skb->len - IEEE80211_WEP_ICV_LEN))
 			return RX_DROP_UNUSABLE;
 	}
 
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index c7c6d644486f..c9edfcb7a13b 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -62,10 +62,10 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
 
 	tail = MICHAEL_MIC_LEN;
 	if (!info->control.hw_key)
-		tail += TKIP_ICV_LEN;
+		tail += IEEE80211_TKIP_ICV_LEN;
 
 	if (WARN_ON(skb_tailroom(skb) < tail ||
-		    skb_headroom(skb) < TKIP_IV_LEN))
+		    skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
 		return TX_DROP;
 
 	key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
@@ -198,15 +198,16 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	if (info->control.hw_key)
 		tail = 0;
 	else
-		tail = TKIP_ICV_LEN;
+		tail = IEEE80211_TKIP_ICV_LEN;
 
 	if (WARN_ON(skb_tailroom(skb) < tail ||
-		    skb_headroom(skb) < TKIP_IV_LEN))
+		    skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
 		return -1;
 
-	pos = skb_push(skb, TKIP_IV_LEN);
-	memmove(pos, pos + TKIP_IV_LEN, hdrlen);
-	skb_set_network_header(skb, skb_network_offset(skb) + TKIP_IV_LEN);
+	pos = skb_push(skb, IEEE80211_TKIP_IV_LEN);
+	memmove(pos, pos + IEEE80211_TKIP_IV_LEN, hdrlen);
+	skb_set_network_header(skb, skb_network_offset(skb) +
+				    IEEE80211_TKIP_IV_LEN);
 	pos += hdrlen;
 
 	/* the HW only needs room for the IV, but not the actual IV */
@@ -227,7 +228,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		return 0;
 
 	/* Add room for ICV */
-	skb_put(skb, TKIP_ICV_LEN);
+	skb_put(skb, IEEE80211_TKIP_ICV_LEN);
 
 	return ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
 					   key, skb, pos, len);
@@ -290,11 +291,11 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
 		return RX_DROP_UNUSABLE;
 
 	/* Trim ICV */
-	skb_trim(skb, skb->len - TKIP_ICV_LEN);
+	skb_trim(skb, skb->len - IEEE80211_TKIP_ICV_LEN);
 
 	/* Remove IV */
-	memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
-	skb_pull(skb, TKIP_IV_LEN);
+	memmove(skb->data + IEEE80211_TKIP_IV_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_TKIP_IV_LEN);
 
 	return RX_CONTINUE;
 }
@@ -337,9 +338,9 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 	else
 		qos_tid = 0;
 
-	data_len = skb->len - hdrlen - CCMP_HDR_LEN;
+	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN;
 	if (encrypted)
-		data_len -= CCMP_MIC_LEN;
+		data_len -= IEEE80211_CCMP_MIC_LEN;
 
 	/* First block, b_0 */
 	b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
@@ -348,7 +349,7 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 	 */
 	b_0[1] = qos_tid | (mgmt << 4);
 	memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
-	memcpy(&b_0[8], pn, CCMP_PN_LEN);
+	memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
 	/* l(m) */
 	put_unaligned_be16(data_len, &b_0[14]);
 
@@ -424,15 +425,16 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	if (info->control.hw_key)
 		tail = 0;
 	else
-		tail = CCMP_MIC_LEN;
+		tail = IEEE80211_CCMP_MIC_LEN;
 
 	if (WARN_ON(skb_tailroom(skb) < tail ||
-		    skb_headroom(skb) < CCMP_HDR_LEN))
+		    skb_headroom(skb) < IEEE80211_CCMP_HDR_LEN))
 		return -1;
 
-	pos = skb_push(skb, CCMP_HDR_LEN);
-	memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
-	skb_set_network_header(skb, skb_network_offset(skb) + CCMP_HDR_LEN);
+	pos = skb_push(skb, IEEE80211_CCMP_HDR_LEN);
+	memmove(pos, pos + IEEE80211_CCMP_HDR_LEN, hdrlen);
+	skb_set_network_header(skb, skb_network_offset(skb) +
+				    IEEE80211_CCMP_HDR_LEN);
 
 	/* the HW only needs room for the IV, but not the actual IV */
 	if (info->control.hw_key &&
@@ -457,10 +459,10 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	if (info->control.hw_key)
 		return 0;
 
-	pos += CCMP_HDR_LEN;
+	pos += IEEE80211_CCMP_HDR_LEN;
 	ccmp_special_blocks(skb, pn, scratch, 0);
 	ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len,
-				  pos, skb_put(skb, CCMP_MIC_LEN));
+				  pos, skb_put(skb, IEEE80211_CCMP_MIC_LEN));
 
 	return 0;
 }
@@ -490,7 +492,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 	struct ieee80211_key *key = rx->key;
 	struct sk_buff *skb = rx->skb;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
-	u8 pn[CCMP_PN_LEN];
+	u8 pn[IEEE80211_CCMP_PN_LEN];
 	int data_len;
 	int queue;
 
@@ -500,12 +502,13 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 	    !ieee80211_is_robust_mgmt_frame(hdr))
 		return RX_CONTINUE;
 
-	data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
+	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN -
+		   IEEE80211_CCMP_MIC_LEN;
 	if (!rx->sta || data_len < 0)
 		return RX_DROP_UNUSABLE;
 
 	if (status->flag & RX_FLAG_DECRYPTED) {
-		if (!pskb_may_pull(rx->skb, hdrlen + CCMP_HDR_LEN))
+		if (!pskb_may_pull(rx->skb, hdrlen + IEEE80211_CCMP_HDR_LEN))
 			return RX_DROP_UNUSABLE;
 	} else {
 		if (skb_linearize(rx->skb))
@@ -516,7 +519,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 
 	queue = rx->security_idx;
 
-	if (memcmp(pn, key->u.ccmp.rx_pn[queue], CCMP_PN_LEN) <= 0) {
+	if (memcmp(pn, key->u.ccmp.rx_pn[queue], IEEE80211_CCMP_PN_LEN) <= 0) {
 		key->u.ccmp.replays++;
 		return RX_DROP_UNUSABLE;
 	}
@@ -528,19 +531,20 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 
 		if (ieee80211_aes_ccm_decrypt(
 			    key->u.ccmp.tfm, scratch,
-			    skb->data + hdrlen + CCMP_HDR_LEN, data_len,
-			    skb->data + skb->len - CCMP_MIC_LEN,
-			    skb->data + hdrlen + CCMP_HDR_LEN))
+			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
+			    data_len,
+			    skb->data + skb->len - IEEE80211_CCMP_MIC_LEN,
+			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN))
 			return RX_DROP_UNUSABLE;
 	}
 
-	memcpy(key->u.ccmp.rx_pn[queue], pn, CCMP_PN_LEN);
+	memcpy(key->u.ccmp.rx_pn[queue], pn, IEEE80211_CCMP_PN_LEN);
 
 	/* Remove CCMP header and MIC */
-	if (pskb_trim(skb, skb->len - CCMP_MIC_LEN))
+	if (pskb_trim(skb, skb->len - IEEE80211_CCMP_MIC_LEN))
 		return RX_DROP_UNUSABLE;
-	memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
-	skb_pull(skb, CCMP_HDR_LEN);
+	memmove(skb->data + IEEE80211_CCMP_HDR_LEN, skb->data, hdrlen);
+	skb_pull(skb, IEEE80211_CCMP_HDR_LEN);
 
 	return RX_CONTINUE;
 }
author	Linus Torvalds <torvalds@linux-foundation.org>	2013-07-10 03:24:39 +0200
committer	Linus Torvalds <torvalds@linux-foundation.org>	2013-07-10 03:24:39 +0200
commit	496322bc91e35007ed754184dcd447a02b6dd685 (patch)
tree	f5298d0a74c0a6e65c0e98050b594b8d020904c1 /net/mac80211
parent	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux (diff)
parent	drivers/net: caif: fix wrong rtnl_is_locked() usage (diff)
download	linux-496322bc91e35007ed754184dcd447a02b6dd685.tar.xz linux-496322bc91e35007ed754184dcd447a02b6dd685.zip