mac80211: merge a few performance enhancements

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44910 3c298f89-4303-0410-b956-a3cf2f4a3e73

7 files changed, 550 insertions, 1 deletions

diff --git a/package/kernel/mac80211/patches/310-mac80211-don-t-look-up-stations-for-multicast-addres.patch b/package/kernel/mac80211/patches/310-mac80211-don-t-look-up-stations-for-multicast-addres.patch
new file mode 100644
index 0000000000..7a039d627a
--- /dev/null
+++ b/package/kernel/mac80211/patches/310-mac80211-don-t-look-up-stations-for-multicast-addres.patch
@@ -0,0 +1,21 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Tue, 24 Feb 2015 00:28:18 +0100
+Subject: [PATCH] mac80211: don't look up stations for multicast addresses
+
+Since multicast addresses don't exist as stations, don't attempt
+to look them up in the hashtable on TX.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1162,7 +1162,7 @@ ieee80211_tx_prepare(struct ieee80211_su
+ 		   tx->sdata->control_port_protocol == tx->skb->protocol) {
+ 		tx->sta = sta_info_get_bss(sdata, hdr->addr1);
+ 	}
+-	if (!tx->sta)
++	if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
+ 		tx->sta = sta_info_get(sdata, hdr->addr1);
+ 
+ 	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
diff --git a/package/kernel/mac80211/patches/311-mac80211-remove-drop_unencrypted-code.patch b/package/kernel/mac80211/patches/311-mac80211-remove-drop_unencrypted-code.patch
new file mode 100644
index 0000000000..d6bc082f35
--- /dev/null
+++ b/package/kernel/mac80211/patches/311-mac80211-remove-drop_unencrypted-code.patch
@@ -0,0 +1,130 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 20 Mar 2015 11:41:58 +0100
+Subject: [PATCH] mac80211: remove drop_unencrypted code
+
+This mechanism was historic, and only ever used by IBSS, which
+also doesn't need to have it as it properly manages station's
+802.1X PAE state (or, with WEP, always has a key.)
+
+Remove the mechanism to clean up the code.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/debugfs.c
++++ b/net/mac80211/debugfs.c
+@@ -274,8 +274,6 @@ void debugfs_hw_add(struct ieee80211_loc
+ #ifdef CPTCFG_MAC80211_DEBUG_COUNTERS
+ 	DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
+ 	DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
+-	DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
+-		local->tx_handlers_drop_unencrypted);
+ 	DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
+ 		local->tx_handlers_drop_fragment);
+ 	DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
+--- a/net/mac80211/debugfs_netdev.c
++++ b/net/mac80211/debugfs_netdev.c
+@@ -177,7 +177,6 @@ static ssize_t ieee80211_if_write_##name
+ 	IEEE80211_IF_FILE_R(name)
+ 
+ /* common attributes */
+-IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
+ IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
+ 		  HEX);
+ IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
+@@ -562,7 +561,6 @@ IEEE80211_IF_FILE(dot11MeshAwakeWindowDu
+ 
+ static void add_common_files(struct ieee80211_sub_if_data *sdata)
+ {
+-	DEBUGFS_ADD(drop_unencrypted);
+ 	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
+ 	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
+ 	DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
+--- a/net/mac80211/ibss.c
++++ b/net/mac80211/ibss.c
+@@ -249,8 +249,6 @@ static void __ieee80211_sta_join_ibss(st
+ 	if (presp)
+ 		kfree_rcu(presp, rcu_head);
+ 
+-	sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+-
+ 	/* make a copy of the chandef, it could be modified below. */
+ 	chandef = *req_chandef;
+ 	chan = chandef.chan;
+@@ -1289,8 +1287,6 @@ static void ieee80211_sta_create_ibss(st
+ 
+ 	if (ifibss->privacy)
+ 		capability |= WLAN_CAPABILITY_PRIVACY;
+-	else
+-		sdata->drop_unencrypted = 0;
+ 
+ 	__ieee80211_sta_join_ibss(sdata, bssid, sdata->vif.bss_conf.beacon_int,
+ 				  &ifibss->chandef, ifibss->basic_rates,
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -842,8 +842,6 @@ struct ieee80211_sub_if_data {
+ 
+ 	unsigned long state;
+ 
+-	int drop_unencrypted;
+-
+ 	char name[IFNAMSIZ];
+ 
+ 	/* Fragment table for host-based reassembly */
+@@ -1289,7 +1287,6 @@ struct ieee80211_local {
+ 	/* TX/RX handler statistics */
+ 	unsigned int tx_handlers_drop;
+ 	unsigned int tx_handlers_queued;
+-	unsigned int tx_handlers_drop_unencrypted;
+ 	unsigned int tx_handlers_drop_fragment;
+ 	unsigned int tx_handlers_drop_wep;
+ 	unsigned int tx_handlers_drop_not_assoc;
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -1535,7 +1535,6 @@ int ieee80211_if_change_type(struct ieee
+ 	}
+ 
+ 	/* reset some values that shouldn't be kept across type changes */
+-	sdata->drop_unencrypted = 0;
+ 	if (type == NL80211_IFTYPE_STATION)
+ 		sdata->u.mgd.use_4addr = false;
+ 
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -1897,8 +1897,7 @@ static int ieee80211_drop_unencrypted(st
+ 	/* Drop unencrypted frames if key is set. */
+ 	if (unlikely(!ieee80211_has_protected(fc) &&
+ 		     !ieee80211_is_nullfunc(fc) &&
+-		     ieee80211_is_data(fc) &&
+-		     (rx->key || rx->sdata->drop_unencrypted)))
++		     ieee80211_is_data(fc) && rx->key))
+ 		return -EACCES;
+ 
+ 	return 0;
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -594,23 +594,8 @@ ieee80211_tx_h_select_key(struct ieee802
+ 	else if (!is_multicast_ether_addr(hdr->addr1) &&
+ 		 (key = rcu_dereference(tx->sdata->default_unicast_key)))
+ 		tx->key = key;
+-	else if (info->flags & IEEE80211_TX_CTL_INJECTED)
+-		tx->key = NULL;
+-	else if (!tx->sdata->drop_unencrypted)
+-		tx->key = NULL;
+-	else if (tx->skb->protocol == tx->sdata->control_port_protocol)
+-		tx->key = NULL;
+-	else if (ieee80211_is_robust_mgmt_frame(tx->skb) &&
+-		 !(ieee80211_is_action(hdr->frame_control) &&
+-		   tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP)))
+-		tx->key = NULL;
+-	else if (ieee80211_is_mgmt(hdr->frame_control) &&
+-		 !ieee80211_is_robust_mgmt_frame(tx->skb))
++	else
+ 		tx->key = NULL;
+-	else {
+-		I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
+-		return TX_DROP;
+-	}
+ 
+ 	if (tx->key) {
+ 		bool skip_hw = false;
diff --git a/package/kernel/mac80211/patches/312-mac80211-don-t-look-up-destination-station-twice.patch b/package/kernel/mac80211/patches/312-mac80211-don-t-look-up-destination-station-twice.patch
new file mode 100644
index 0000000000..6109bc2e87
--- /dev/null
+++ b/package/kernel/mac80211/patches/312-mac80211-don-t-look-up-destination-station-twice.patch
@@ -0,0 +1,71 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 20 Mar 2015 16:24:21 +0100
+Subject: [PATCH] mac80211: don't look up destination station twice
+
+There's no need to look up the destination station twice while
+building the 802.11 header for a given frame if the frame will
+actually be transmitted to the station we initially looked up.
+
+This happens for 4-addr VLAN interfaces and TDLS connections, which
+both directly send the frame to the station they looked up, though
+in the case of TDLS some station conditions need to be checked.
+
+To avoid that, add a variable indicating that we've looked up the
+station that the frame is going to be transmitted to, and avoid the
+lookup/flag checking if it already has been done.
+
+In the TDLS case, also move the authorized/wme_sta flag assignment
+to the correct place, i.e. only when that station is really used.
+Before this change, the new lookup should always have succeeded so
+that the potentially erroneous data would be overwritten.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1895,6 +1895,7 @@ static struct sk_buff *ieee80211_build_h
+ 	bool wme_sta = false, authorized = false, tdls_auth = false;
+ 	bool tdls_peer = false, tdls_setup_frame = false;
+ 	bool multicast;
++	bool have_station = false;
+ 	u16 info_id = 0;
+ 	struct ieee80211_chanctx_conf *chanctx_conf;
+ 	struct ieee80211_sub_if_data *ap_sdata;
+@@ -1919,6 +1920,7 @@ static struct sk_buff *ieee80211_build_h
+ 			hdrlen = 30;
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ 			wme_sta = sta->sta.wme;
++			have_station = true;
+ 		}
+ 		ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
+ 					u.ap);
+@@ -2035,9 +2037,6 @@ static struct sk_buff *ieee80211_build_h
+ 		if (sdata->wdev.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) {
+ 			sta = sta_info_get(sdata, skb->data);
+ 			if (sta) {
+-				authorized = test_sta_flag(sta,
+-							WLAN_STA_AUTHORIZED);
+-				wme_sta = sta->sta.wme;
+ 				tdls_peer = test_sta_flag(sta,
+ 							  WLAN_STA_TDLS_PEER);
+ 				tdls_auth = test_sta_flag(sta,
+@@ -2069,6 +2068,9 @@ static struct sk_buff *ieee80211_build_h
+ 			memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ 			memcpy(hdr.addr3, sdata->u.mgd.bssid, ETH_ALEN);
+ 			hdrlen = 24;
++			have_station = true;
++			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
++			wme_sta = sta->sta.wme;
+ 		}  else if (sdata->u.mgd.use_4addr &&
+ 			    cpu_to_be16(ethertype) != sdata->control_port_protocol) {
+ 			fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
+@@ -2131,7 +2133,7 @@ static struct sk_buff *ieee80211_build_h
+ 	 * in AP mode)
+ 	 */
+ 	multicast = is_multicast_ether_addr(hdr.addr1);
+-	if (!multicast) {
++	if (!multicast && !have_station) {
+ 		sta = sta_info_get(sdata, hdr.addr1);
+ 		if (sta) {
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
diff --git a/package/kernel/mac80211/patches/313-mac80211-drop-4-addr-VLAN-frames-earlier-if-not-conn.patch b/package/kernel/mac80211/patches/313-mac80211-drop-4-addr-VLAN-frames-earlier-if-not-conn.patch
new file mode 100644
index 0000000000..f493f654f8
--- /dev/null
+++ b/package/kernel/mac80211/patches/313-mac80211-drop-4-addr-VLAN-frames-earlier-if-not-conn.patch
@@ -0,0 +1,27 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 20 Mar 2015 16:24:22 +0100
+Subject: [PATCH] mac80211: drop 4-addr VLAN frames earlier if not
+ connected
+
+If there's no station on the 4-addr VLAN interface, then frames
+cannot be transmitted. Drop such frames earlier, before setting
+up all the information for them.
+
+We should keep the old check though since that code might be used
+for other internally-generated frames.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1921,6 +1921,9 @@ static struct sk_buff *ieee80211_build_h
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ 			wme_sta = sta->sta.wme;
+ 			have_station = true;
++		} else if (sdata->wdev.use_4addr) {
++			ret = -ENOLINK;
++			goto free;
+ 		}
+ 		ap_sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
+ 					u.ap);
diff --git a/package/kernel/mac80211/patches/314-mac80211-mesh-avoid-pointless-station-lookup.patch b/package/kernel/mac80211/patches/314-mac80211-mesh-avoid-pointless-station-lookup.patch
new file mode 100644
index 0000000000..c476dd463c
--- /dev/null
+++ b/package/kernel/mac80211/patches/314-mac80211-mesh-avoid-pointless-station-lookup.patch
@@ -0,0 +1,33 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 20 Mar 2015 16:24:23 +0100
+Subject: [PATCH] mac80211: mesh: avoid pointless station lookup
+
+In ieee80211_build_hdr(), the station is looked up to build the
+header correctly (QoS field) and to check for authorization. For
+mesh, authorization isn't checked here, and QoS capability is
+mandatory, so the station lookup can be avoided.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -2131,12 +2131,14 @@ static struct sk_buff *ieee80211_build_h
+ 	}
+ 
+ 	/*
+-	 * There's no need to try to look up the destination
+-	 * if it is a multicast address (which can only happen
+-	 * in AP mode)
++	 * There's no need to try to look up the destination station
++	 * if it is a multicast address. In mesh, there's no need to
++	 * look up the station at all as it always must be QoS capable
++	 * and mesh mode checks authorization later.
+ 	 */
+ 	multicast = is_multicast_ether_addr(hdr.addr1);
+-	if (!multicast && !have_station) {
++	if (!multicast && !have_station &&
++	    !ieee80211_vif_is_mesh(&sdata->vif)) {
+ 		sta = sta_info_get(sdata, hdr.addr1);
+ 		if (sta) {
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
diff --git a/package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch b/package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch
new file mode 100644
index 0000000000..31ed830c2a
--- /dev/null
+++ b/package/kernel/mac80211/patches/315-mac80211-avoid-duplicate-TX-path-station-lookup.patch
@@ -0,0 +1,267 @@
+From: Johannes Berg <johannes.berg@intel.com>
+Date: Fri, 20 Mar 2015 14:18:27 +0100
+Subject: [PATCH] mac80211: avoid duplicate TX path station lookup
+
+Instead of looking up the destination station twice in the TX path
+(first to build the header, and then for control processing), save
+it when building the header and use it later in the TX path.
+
+To avoid having to look up the station in the many callers, allow
+those to pass %NULL which keeps the existing lookup.
+
+Signed-off-by: Johannes Berg <johannes.berg@intel.com>
+---
+
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -3565,7 +3565,7 @@ static int ieee80211_probe_client(struct
+ 		nullfunc->qos_ctrl = cpu_to_le16(7);
+ 
+ 	local_bh_disable();
+-	ieee80211_xmit(sdata, skb);
++	ieee80211_xmit(sdata, sta, skb);
+ 	local_bh_enable();
+ 	rcu_read_unlock();
+ 
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -1775,7 +1775,8 @@ void mac80211_ev_michael_mic_failure(str
+ 				     gfp_t gfp);
+ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
+ 			       bool bss_notify);
+-void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
++void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
++		    struct sta_info *sta, struct sk_buff *skb);
+ 
+ void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
+ 				 struct sk_buff *skb, int tid,
+--- a/net/mac80211/sta_info.c
++++ b/net/mac80211/sta_info.c
+@@ -1279,7 +1279,7 @@ static void ieee80211_send_null_response
+ 	}
+ 
+ 	info->band = chanctx_conf->def.chan->band;
+-	ieee80211_xmit(sdata, skb);
++	ieee80211_xmit(sdata, sta, skb);
+ 	rcu_read_unlock();
+ }
+ 
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1111,11 +1111,13 @@ static bool ieee80211_tx_prep_agg(struct
+ 
+ /*
+  * initialises @tx
++ * pass %NULL for the station if unknown, a valid pointer if known
++ * or an ERR_PTR() if the station is known not to exist
+  */
+ static ieee80211_tx_result
+ ieee80211_tx_prepare(struct ieee80211_sub_if_data *sdata,
+ 		     struct ieee80211_tx_data *tx,
+-		     struct sk_buff *skb)
++		     struct sta_info *sta, struct sk_buff *skb)
+ {
+ 	struct ieee80211_local *local = sdata->local;
+ 	struct ieee80211_hdr *hdr;
+@@ -1138,17 +1140,22 @@ ieee80211_tx_prepare(struct ieee80211_su
+ 
+ 	hdr = (struct ieee80211_hdr *) skb->data;
+ 
+-	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+-		tx->sta = rcu_dereference(sdata->u.vlan.sta);
+-		if (!tx->sta && sdata->dev->ieee80211_ptr->use_4addr)
+-			return TX_DROP;
+-	} else if (info->flags & (IEEE80211_TX_CTL_INJECTED |
+-				  IEEE80211_TX_INTFL_NL80211_FRAME_TX) ||
+-		   tx->sdata->control_port_protocol == tx->skb->protocol) {
+-		tx->sta = sta_info_get_bss(sdata, hdr->addr1);
++	if (likely(sta)) {
++		if (!IS_ERR(sta))
++			tx->sta = sta;
++	} else {
++		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
++			tx->sta = rcu_dereference(sdata->u.vlan.sta);
++			if (!tx->sta && sdata->wdev.use_4addr)
++				return TX_DROP;
++		} else if (info->flags & (IEEE80211_TX_INTFL_NL80211_FRAME_TX |
++					  IEEE80211_TX_CTL_INJECTED) ||
++			   tx->sdata->control_port_protocol == tx->skb->protocol) {
++			tx->sta = sta_info_get_bss(sdata, hdr->addr1);
++		}
++		if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
++			tx->sta = sta_info_get(sdata, hdr->addr1);
+ 	}
+-	if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
+-		tx->sta = sta_info_get(sdata, hdr->addr1);
+ 
+ 	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
+ 	    !ieee80211_is_qos_nullfunc(hdr->frame_control) &&
+@@ -1486,7 +1493,7 @@ bool ieee80211_tx_prepare_skb(struct iee
+ 	struct ieee80211_tx_data tx;
+ 	struct sk_buff *skb2;
+ 
+-	if (ieee80211_tx_prepare(sdata, &tx, skb) == TX_DROP)
++	if (ieee80211_tx_prepare(sdata, &tx, NULL, skb) == TX_DROP)
+ 		return false;
+ 
+ 	info->band = band;
+@@ -1519,7 +1526,8 @@ EXPORT_SYMBOL(ieee80211_tx_prepare_skb);
+  * Returns false if the frame couldn't be transmitted but was queued instead.
+  */
+ static bool ieee80211_tx(struct ieee80211_sub_if_data *sdata,
+-			 struct sk_buff *skb, bool txpending)
++			 struct sta_info *sta, struct sk_buff *skb,
++			 bool txpending)
+ {
+ 	struct ieee80211_local *local = sdata->local;
+ 	struct ieee80211_tx_data tx;
+@@ -1535,7 +1543,7 @@ static bool ieee80211_tx(struct ieee8021
+ 
+ 	/* initialises tx */
+ 	led_len = skb->len;
+-	res_prepare = ieee80211_tx_prepare(sdata, &tx, skb);
++	res_prepare = ieee80211_tx_prepare(sdata, &tx, sta, skb);
+ 
+ 	if (unlikely(res_prepare == TX_DROP)) {
+ 		ieee80211_free_txskb(&local->hw, skb);
+@@ -1591,7 +1599,8 @@ static int ieee80211_skb_resize(struct i
+ 	return 0;
+ }
+ 
+-void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
++void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
++		    struct sta_info *sta, struct sk_buff *skb)
+ {
+ 	struct ieee80211_local *local = sdata->local;
+ 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+@@ -1626,7 +1635,7 @@ void ieee80211_xmit(struct ieee80211_sub
+ 	}
+ 
+ 	ieee80211_set_qos_hdr(sdata, skb);
+-	ieee80211_tx(sdata, skb, false);
++	ieee80211_tx(sdata, sta, skb, false);
+ }
+ 
+ static bool ieee80211_parse_tx_radiotap(struct sk_buff *skb)
+@@ -1847,7 +1856,7 @@ netdev_tx_t ieee80211_monitor_start_xmit
+ 		goto fail_rcu;
+ 
+ 	info->band = chandef->chan->band;
+-	ieee80211_xmit(sdata, skb);
++	ieee80211_xmit(sdata, NULL, skb);
+ 	rcu_read_unlock();
+ 
+ 	return NETDEV_TX_OK;
+@@ -1878,7 +1887,8 @@ fail:
+  * Returns: the (possibly reallocated) skb or an ERR_PTR() code
+  */
+ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata,
+-					   struct sk_buff *skb, u32 info_flags)
++					   struct sk_buff *skb, u32 info_flags,
++					   struct sta_info **sta_out)
+ {
+ 	struct ieee80211_local *local = sdata->local;
+ 	struct ieee80211_tx_info *info;
+@@ -1921,6 +1931,7 @@ static struct sk_buff *ieee80211_build_h
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ 			wme_sta = sta->sta.wme;
+ 			have_station = true;
++			*sta_out = sta;
+ 		} else if (sdata->wdev.use_4addr) {
+ 			ret = -ENOLINK;
+ 			goto free;
+@@ -2074,6 +2085,7 @@ static struct sk_buff *ieee80211_build_h
+ 			have_station = true;
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ 			wme_sta = sta->sta.wme;
++			*sta_out = sta;
+ 		}  else if (sdata->u.mgd.use_4addr &&
+ 			    cpu_to_be16(ethertype) != sdata->control_port_protocol) {
+ 			fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS |
+@@ -2137,13 +2149,18 @@ static struct sk_buff *ieee80211_build_h
+ 	 * and mesh mode checks authorization later.
+ 	 */
+ 	multicast = is_multicast_ether_addr(hdr.addr1);
+-	if (!multicast && !have_station &&
+-	    !ieee80211_vif_is_mesh(&sdata->vif)) {
+-		sta = sta_info_get(sdata, hdr.addr1);
++	if (multicast) {
++		*sta_out = ERR_PTR(-ENOENT);
++	} else if (!have_station && !ieee80211_vif_is_mesh(&sdata->vif)) {
++		if (sdata->control_port_protocol == skb->protocol)
++			sta = sta_info_get_bss(sdata, hdr.addr1);
++		else
++			sta = sta_info_get(sdata, hdr.addr1);
+ 		if (sta) {
+ 			authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
+ 			wme_sta = sta->sta.wme;
+ 		}
++		*sta_out = sta ?: ERR_PTR(-ENOENT);
+ 	}
+ 
+ 	/* For mesh, the use of the QoS header is mandatory */
+@@ -2321,6 +2338,7 @@ void __ieee80211_subif_start_xmit(struct
+ 				  u32 info_flags)
+ {
+ 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++	struct sta_info *sta = NULL;
+ 
+ 	if (unlikely(skb->len < ETH_HLEN)) {
+ 		kfree_skb(skb);
+@@ -2329,7 +2347,7 @@ void __ieee80211_subif_start_xmit(struct
+ 
+ 	rcu_read_lock();
+ 
+-	skb = ieee80211_build_hdr(sdata, skb, info_flags);
++	skb = ieee80211_build_hdr(sdata, skb, info_flags, &sta);
+ 	if (IS_ERR(skb))
+ 		goto out;
+ 
+@@ -2337,7 +2355,7 @@ void __ieee80211_subif_start_xmit(struct
+ 	dev->stats.tx_bytes += skb->len;
+ 	dev->trans_start = jiffies;
+ 
+-	ieee80211_xmit(sdata, skb);
++	ieee80211_xmit(sdata, sta, skb);
+  out:
+ 	rcu_read_unlock();
+ }
+@@ -2365,10 +2383,11 @@ ieee80211_build_data_template(struct iee
+ 		.local = sdata->local,
+ 		.sdata = sdata,
+ 	};
++	struct sta_info *sta_ignore;
+ 
+ 	rcu_read_lock();
+ 
+-	skb = ieee80211_build_hdr(sdata, skb, info_flags);
++	skb = ieee80211_build_hdr(sdata, skb, info_flags, &sta_ignore);
+ 	if (IS_ERR(skb))
+ 		goto out;
+ 
+@@ -2426,7 +2445,7 @@ static bool ieee80211_tx_pending_skb(str
+ 			return true;
+ 		}
+ 		info->band = chanctx_conf->def.chan->band;
+-		result = ieee80211_tx(sdata, skb, true);
++		result = ieee80211_tx(sdata, NULL, skb, true);
+ 	} else {
+ 		struct sk_buff_head skbs;
+ 
+@@ -3164,7 +3183,7 @@ ieee80211_get_buffered_bc(struct ieee802
+ 
+ 		if (sdata->vif.type == NL80211_IFTYPE_AP)
+ 			sdata = IEEE80211_DEV_TO_SUB_IF(skb->dev);
+-		if (!ieee80211_tx_prepare(sdata, &tx, skb))
++		if (!ieee80211_tx_prepare(sdata, &tx, NULL, skb))
+ 			break;
+ 		dev_kfree_skb_any(skb);
+ 	}
+@@ -3296,6 +3315,6 @@ void __ieee80211_tx_skb_tid_band(struct 
+ 	 */
+ 	local_bh_disable();
+ 	IEEE80211_SKB_CB(skb)->band = band;
+-	ieee80211_xmit(sdata, skb);
++	ieee80211_xmit(sdata, NULL, skb);
+ 	local_bh_enable();
+ }
diff --git a/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch b/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
index 673c6dc422..e13fe31d3f 100644
--- a/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
+++ b/package/kernel/mac80211/patches/522-mac80211_configure_antenna_gain.patch
@@ -87,7 +87,7 @@
  	CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
 --- a/net/mac80211/ieee80211_i.h
 +++ b/net/mac80211/ieee80211_i.h
-@@ -1336,6 +1336,7 @@ struct ieee80211_local {
+@@ -1333,6 +1333,7 @@ struct ieee80211_local {
  	int dynamic_ps_forced_timeout;
  
  	int user_power_level; /* in dBm, for all interfaces */