1 files changed, 130 insertions, 92 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 11c4caa4748e..738de269e13f 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -8,7 +8,7 @@
  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
  * Copyright (c) 2016        Intel Deutschland GmbH
- * Copyright (C) 2018-2023 Intel Corporation
+ * Copyright (C) 2018-2024 Intel Corporation
  */
 #include <linux/slab.h>
 #include <linux/kernel.h>
@@ -44,13 +44,13 @@
 
 static void ieee80211_iface_work(struct wiphy *wiphy, struct wiphy_work *work);
 
-bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
+bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link)
 {
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	int power;
 
 	rcu_read_lock();
-	chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
+	chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
 	if (!chanctx_conf) {
 		rcu_read_unlock();
 		return false;
@@ -59,27 +59,26 @@ bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata)
 	power = ieee80211_chandef_max_power(&chanctx_conf->def);
 	rcu_read_unlock();
 
-	if (sdata->deflink.user_power_level != IEEE80211_UNSET_POWER_LEVEL)
-		power = min(power, sdata->deflink.user_power_level);
+	if (link->user_power_level != IEEE80211_UNSET_POWER_LEVEL)
+		power = min(power, link->user_power_level);
 
-	if (sdata->deflink.ap_power_level != IEEE80211_UNSET_POWER_LEVEL)
-		power = min(power, sdata->deflink.ap_power_level);
+	if (link->ap_power_level != IEEE80211_UNSET_POWER_LEVEL)
+		power = min(power, link->ap_power_level);
 
-	if (power != sdata->vif.bss_conf.txpower) {
-		sdata->vif.bss_conf.txpower = power;
-		ieee80211_hw_config(sdata->local, 0);
+	if (power != link->conf->txpower) {
+		link->conf->txpower = power;
 		return true;
 	}
 
 	return false;
 }
 
-void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
+void ieee80211_recalc_txpower(struct ieee80211_link_data *link,
 			      bool update_bss)
 {
-	if (__ieee80211_recalc_txpower(sdata) ||
-	    (update_bss && ieee80211_sdata_running(sdata)))
-		ieee80211_link_info_change_notify(sdata, &sdata->deflink,
+	if (__ieee80211_recalc_txpower(link) ||
+	    (update_bss && ieee80211_sdata_running(link->sdata)))
+		ieee80211_link_info_change_notify(link->sdata, link,
 						  BSS_CHANGED_TXPOWER);
 }
 
@@ -296,7 +295,6 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
-	int ret;
 
 	/*
 	 * This happens during unregistration if there's a bond device
@@ -306,11 +304,9 @@ static int ieee80211_change_mac(struct net_device *dev, void *addr)
 	if (!dev->ieee80211_ptr->registered)
 		return 0;
 
-	wiphy_lock(local->hw.wiphy);
-	ret = _ieee80211_change_mac(sdata, addr);
-	wiphy_unlock(local->hw.wiphy);
+	guard(wiphy)(local->hw.wiphy);
 
-	return ret;
+	return _ieee80211_change_mac(sdata, addr);
 }
 
 static inline int identical_mac_addr_allowed(int type1, int type2)
@@ -397,7 +393,7 @@ static int ieee80211_check_concurrent_iface(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	return ieee80211_check_combinations(sdata, NULL, 0, 0);
+	return ieee80211_check_combinations(sdata, NULL, 0, 0, -1);
 }
 
 static int ieee80211_check_queues(struct ieee80211_sub_if_data *sdata,
@@ -446,22 +442,20 @@ static int ieee80211_open(struct net_device *dev)
 	if (!is_valid_ether_addr(dev->dev_addr))
 		return -EADDRNOTAVAIL;
 
-	wiphy_lock(sdata->local->hw.wiphy);
+	guard(wiphy)(sdata->local->hw.wiphy);
+
 	err = ieee80211_check_concurrent_iface(sdata, sdata->vif.type);
 	if (err)
-		goto out;
+		return err;
 
-	err = ieee80211_do_open(&sdata->wdev, true);
-out:
-	wiphy_unlock(sdata->local->hw.wiphy);
-
-	return err;
+	return ieee80211_do_open(&sdata->wdev, true);
 }
 
 static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_down)
 {
 	struct ieee80211_local *local = sdata->local;
 	unsigned long flags;
+	struct sk_buff_head freeq;
 	struct sk_buff *skb, *tmp;
 	u32 hw_reconf_flags = 0;
 	int i, flushed;
@@ -511,7 +505,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 	 * would have removed them, but in other modes there shouldn't
 	 * be any stations.
 	 */
-	flushed = sta_info_flush(sdata);
+	flushed = sta_info_flush(sdata, -1);
 	WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP_VLAN && flushed > 0);
 
 	/* don't count this interface for allmulti while it is down */
@@ -543,26 +537,22 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 
 	sdata->vif.bss_conf.csa_active = false;
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
-		sdata->deflink.u.mgd.csa_waiting_bcn = false;
-	if (sdata->deflink.csa_block_tx) {
-		ieee80211_wake_vif_queues(local, sdata,
-					  IEEE80211_QUEUE_STOP_REASON_CSA);
-		sdata->deflink.csa_block_tx = false;
-	}
+		sdata->deflink.u.mgd.csa.waiting_bcn = false;
+	ieee80211_vif_unblock_queues_csa(sdata);
 
-	wiphy_work_cancel(local->hw.wiphy, &sdata->deflink.csa_finalize_work);
+	wiphy_work_cancel(local->hw.wiphy, &sdata->deflink.csa.finalize_work);
 	wiphy_work_cancel(local->hw.wiphy,
 			  &sdata->deflink.color_change_finalize_work);
 	wiphy_delayed_work_cancel(local->hw.wiphy,
 				  &sdata->deflink.dfs_cac_timer_work);
 
-	if (sdata->wdev.cac_started) {
-		chandef = sdata->vif.bss_conf.chandef;
+	if (sdata->wdev.links[0].cac_started) {
+		chandef = sdata->vif.bss_conf.chanreq.oper;
 		WARN_ON(local->suspended);
 		ieee80211_link_release_channel(&sdata->deflink);
 		cfg80211_cac_event(sdata->dev, &chandef,
 				   NL80211_RADAR_CAC_ABORTED,
-				   GFP_KERNEL);
+				   GFP_KERNEL, 0);
 	}
 
 	if (sdata->vif.type == NL80211_IFTYPE_AP) {
@@ -641,18 +631,32 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 		skb_queue_purge(&sdata->status_queue);
 	}
 
+	/*
+	 * Since ieee80211_free_txskb() may issue __dev_queue_xmit()
+	 * which should be called with interrupts enabled, reclamation
+	 * is done in two phases:
+	 */
+	__skb_queue_head_init(&freeq);
+
+	/* unlink from local queues... */
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
 	for (i = 0; i < IEEE80211_MAX_QUEUES; i++) {
 		skb_queue_walk_safe(&local->pending[i], skb, tmp) {
 			struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 			if (info->control.vif == &sdata->vif) {
 				__skb_unlink(skb, &local->pending[i]);
-				ieee80211_free_txskb(&local->hw, skb);
+				__skb_queue_tail(&freeq, skb);
 			}
 		}
 	}
 	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
 
+	/* ... and perform actual reclamation with interrupts enabled. */
+	skb_queue_walk_safe(&freeq, skb, tmp) {
+		__skb_unlink(skb, &freeq);
+		ieee80211_free_txskb(&local->hw, skb);
+	}
+
 	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		ieee80211_txq_remove_vlan(local, sdata);
 
@@ -686,14 +690,21 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 			ieee80211_del_virtual_monitor(local);
 
 		ieee80211_recalc_idle(local);
+		ieee80211_recalc_offload(local);
 
-		if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))
+		if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) &&
+		    !ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
 			break;
 
+		ieee80211_link_release_channel(&sdata->deflink);
 		fallthrough;
 	default:
-		if (going_down)
-			drv_remove_interface(local, sdata);
+		if (!going_down)
+			break;
+		drv_remove_interface(local, sdata);
+
+		/* Clear private driver data to prevent reuse */
+		memset(sdata->vif.drv_priv, 0, local->hw.vif_data_size);
 	}
 
 	ieee80211_recalc_ps(local);
@@ -702,7 +713,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
 		wiphy_delayed_work_flush(local->hw.wiphy, &local->scan_work);
 
 	if (local->open_count == 0) {
-		ieee80211_stop_device(local);
+		ieee80211_stop_device(local, false);
 
 		/* no reconfiguring after stop! */
 		return;
@@ -758,11 +769,11 @@ static int ieee80211_stop(struct net_device *dev)
 		ieee80211_stop_mbssid(sdata);
 	}
 
-	wiphy_lock(sdata->local->hw.wiphy);
+	guard(wiphy)(sdata->local->hw.wiphy);
+
 	wiphy_work_cancel(sdata->local->hw.wiphy, &sdata->activate_links_work);
 
 	ieee80211_do_stop(sdata, true);
-	wiphy_unlock(sdata->local->hw.wiphy);
 
 	return 0;
 }
@@ -815,12 +826,6 @@ static void ieee80211_uninit(struct net_device *dev)
 	ieee80211_teardown_sdata(IEEE80211_DEV_TO_SUB_IF(dev));
 }
 
-static void
-ieee80211_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
-{
-	dev_fetch_sw_netstats(stats, dev->tstats);
-}
-
 static int ieee80211_netdev_setup_tc(struct net_device *dev,
 				     enum tc_setup_type type, void *type_data)
 {
@@ -837,7 +842,6 @@ static const struct net_device_ops ieee80211_dataif_ops = {
 	.ndo_start_xmit		= ieee80211_subif_start_xmit,
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_set_mac_address 	= ieee80211_change_mac,
-	.ndo_get_stats64	= ieee80211_get_stats64,
 	.ndo_setup_tc		= ieee80211_netdev_setup_tc,
 };
 
@@ -877,7 +881,6 @@ static const struct net_device_ops ieee80211_monitorif_ops = {
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_set_mac_address 	= ieee80211_change_mac,
 	.ndo_select_queue	= ieee80211_monitor_select_queue,
-	.ndo_get_stats64	= ieee80211_get_stats64,
 };
 
 static int ieee80211_netdev_fill_forward_path(struct net_device_path_ctx *ctx,
@@ -945,7 +948,6 @@ static const struct net_device_ops ieee80211_dataif_8023_ops = {
 	.ndo_start_xmit		= ieee80211_subif_start_xmit_8023,
 	.ndo_set_rx_mode	= ieee80211_set_multicast_list,
 	.ndo_set_mac_address	= ieee80211_change_mac,
-	.ndo_get_stats64	= ieee80211_get_stats64,
 	.ndo_fill_forward_path	= ieee80211_netdev_fill_forward_path,
 	.ndo_setup_tc		= ieee80211_netdev_setup_tc,
 };
@@ -1080,6 +1082,8 @@ void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
 	ADJUST(CONTROL, control);
 	ADJUST(CONTROL, pspoll);
 	ADJUST(OTHER_BSS, other_bss);
+	if (!(flags & MONITOR_FLAG_SKIP_TX))
+		local->tx_mntrs += offset;
 
 #undef ADJUST
 }
@@ -1121,13 +1125,11 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 	struct ieee80211_sub_if_data *sdata;
 	int ret;
 
-	if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
-		return 0;
-
 	ASSERT_RTNL();
 	lockdep_assert_wiphy(local->hw.wiphy);
 
-	if (local->monitor_sdata)
+	if (local->monitor_sdata ||
+	    ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
 		return 0;
 
 	sdata = kzalloc(sizeof(*sdata) + local->hw.vif_data_size, GFP_KERNEL);
@@ -1145,11 +1147,13 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 
 	ieee80211_set_default_queues(sdata);
 
-	ret = drv_add_interface(local, sdata);
-	if (WARN_ON(ret)) {
-		/* ok .. stupid driver, it asked for this! */
-		kfree(sdata);
-		return ret;
+	if (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF)) {
+		ret = drv_add_interface(local, sdata);
+		if (WARN_ON(ret)) {
+			/* ok .. stupid driver, it asked for this! */
+			kfree(sdata);
+			return ret;
+		}
 	}
 
 	set_bit(SDATA_STATE_RUNNING, &sdata->state);
@@ -1164,7 +1168,7 @@ int ieee80211_add_virtual_monitor(struct ieee80211_local *local)
 	rcu_assign_pointer(local->monitor_sdata, sdata);
 	mutex_unlock(&local->iflist_mtx);
 
-	ret = ieee80211_link_use_channel(&sdata->deflink, &local->monitor_chandef,
+	ret = ieee80211_link_use_channel(&sdata->deflink, &local->monitor_chanreq,
 					 IEEE80211_CHANCTX_EXCLUSIVE);
 	if (ret) {
 		mutex_lock(&local->iflist_mtx);
@@ -1187,7 +1191,7 @@ void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
 {
 	struct ieee80211_sub_if_data *sdata;
 
-	if (!ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
+	if (ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR))
 		return;
 
 	ASSERT_RTNL();
@@ -1202,15 +1206,17 @@ void ieee80211_del_virtual_monitor(struct ieee80211_local *local)
 		return;
 	}
 
+	clear_bit(SDATA_STATE_RUNNING, &sdata->state);
+	ieee80211_link_release_channel(&sdata->deflink);
+
+	if (ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF))
+		drv_remove_interface(local, sdata);
+
 	RCU_INIT_POINTER(local->monitor_sdata, NULL);
 	mutex_unlock(&local->iflist_mtx);
 
 	synchronize_net();
 
-	ieee80211_link_release_channel(&sdata->deflink);
-
-	drv_remove_interface(local, sdata);
-
 	kfree(sdata);
 }
 
@@ -1252,7 +1258,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		sdata->vif.cab_queue = master->vif.cab_queue;
 		memcpy(sdata->vif.hw_queue, master->vif.hw_queue,
 		       sizeof(sdata->vif.hw_queue));
-		sdata->vif.bss_conf.chandef = master->vif.bss_conf.chandef;
+		sdata->vif.bss_conf.chanreq = master->vif.bss_conf.chanreq;
 
 		sdata->crypto_tx_tailroom_needed_cnt +=
 			master->crypto_tx_tailroom_needed_cnt;
@@ -1288,8 +1294,6 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		res = drv_start(local);
 		if (res)
 			goto err_del_bss;
-		/* we're brought up, everything changes */
-		hw_reconf_flags = ~0;
 		ieee80211_led_radio(local, true);
 		ieee80211_mod_tpt_led_trig(local,
 					   IEEE80211_TPT_LEDTRIG_FL_RADIO, 0);
@@ -1309,6 +1313,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 		}
 	}
 
+	sdata->vif.addr_valid = sdata->vif.type != NL80211_IFTYPE_MONITOR ||
+				(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE);
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP_VLAN:
 		/* no need to tell driver, but set carrier and chanctx */
@@ -1326,7 +1332,8 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 			break;
 		}
 
-		if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
+		if ((sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) ||
+		    ieee80211_hw_check(&local->hw, NO_VIRTUAL_MONITOR)) {
 			res = drv_add_interface(local, sdata);
 			if (res)
 				goto err_stop;
@@ -1436,7 +1443,9 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	if (coming_up)
 		local->open_count++;
 
-	if (hw_reconf_flags)
+	if (local->open_count == 1)
+		ieee80211_hw_conf_init(local);
+	else if (hw_reconf_flags)
 		ieee80211_hw_config(local, hw_reconf_flags);
 
 	ieee80211_recalc_ps(local);
@@ -1448,7 +1457,7 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	drv_remove_interface(local, sdata);
  err_stop:
 	if (!local->open_count)
-		drv_stop(local);
+		drv_stop(local, false);
  err_del_bss:
 	sdata->bss = NULL;
 	if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
@@ -1458,11 +1467,6 @@ int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up)
 	return res;
 }
 
-static void ieee80211_if_free(struct net_device *dev)
-{
-	free_percpu(dev->tstats);
-}
-
 static void ieee80211_if_setup(struct net_device *dev)
 {
 	ether_setup(dev);
@@ -1470,7 +1474,6 @@ static void ieee80211_if_setup(struct net_device *dev)
 	dev->priv_flags |= IFF_NO_QUEUE;
 	dev->netdev_ops = &ieee80211_dataif_ops;
 	dev->needs_free_netdev = true;
-	dev->priv_destructor = ieee80211_if_free;
 }
 
 static void ieee80211_iface_process_skb(struct ieee80211_local *local,
@@ -1546,6 +1549,26 @@ static void ieee80211_iface_process_skb(struct ieee80211_local *local,
 		default:
 			break;
 		}
+	} else if (ieee80211_is_action(mgmt->frame_control) &&
+		   mgmt->u.action.category == WLAN_CATEGORY_PROTECTED_EHT) {
+		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+			switch (mgmt->u.action.u.ttlm_req.action_code) {
+			case WLAN_PROTECTED_EHT_ACTION_TTLM_REQ:
+				ieee80211_process_neg_ttlm_req(sdata, mgmt,
+							       skb->len);
+				break;
+			case WLAN_PROTECTED_EHT_ACTION_TTLM_RES:
+				ieee80211_process_neg_ttlm_res(sdata, mgmt,
+							       skb->len);
+				break;
+			case WLAN_PROTECTED_EHT_ACTION_LINK_RECONFIG_RESP:
+				ieee80211_process_ml_reconf_resp(sdata, mgmt,
+								 skb->len);
+				break;
+			default:
+				break;
+			}
+		}
 	} else if (ieee80211_is_ext(mgmt->frame_control)) {
 		if (sdata->vif.type == NL80211_IFTYPE_STATION)
 			ieee80211_sta_rx_queued_ext(sdata, skb);
@@ -1683,8 +1706,13 @@ static void ieee80211_activate_links_work(struct wiphy *wiphy,
 	struct ieee80211_sub_if_data *sdata =
 		container_of(work, struct ieee80211_sub_if_data,
 			     activate_links_work);
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	if (local->in_reconfig)
+		return;
 
 	ieee80211_set_active_links(&sdata->vif, sdata->desired_active_links);
+	sdata->desired_active_links = 0;
 }
 
 /*
@@ -2080,11 +2108,7 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 		dev_net_set(ndev, wiphy_net(local->hw.wiphy));
 
-		ndev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
-		if (!ndev->tstats) {
-			free_netdev(ndev);
-			return -ENOMEM;
-		}
+		ndev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
 
 		ndev->needed_headroom = local->tx_headroom +
 					4*6 /* four MAC addresses */
@@ -2097,7 +2121,6 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 		ret = dev_alloc_name(ndev, ndev->name);
 		if (ret < 0) {
-			ieee80211_if_free(ndev);
 			free_netdev(ndev);
 			return ret;
 		}
@@ -2162,9 +2185,6 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 	ieee80211_set_default_queues(sdata);
 
-	sdata->deflink.ap_power_level = IEEE80211_UNSET_POWER_LEVEL;
-	sdata->deflink.user_power_level = local->user_power_level;
-
 	/* setup type-dependent data */
 	ieee80211_setup_sdata(sdata, type);
 
@@ -2258,7 +2278,7 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 	 */
 	cfg80211_shutdown_all_interfaces(local->hw.wiphy);
 
-	wiphy_lock(local->hw.wiphy);
+	guard(wiphy)(local->hw.wiphy);
 
 	WARN(local->open_count, "%s: open count remains %d\n",
 	     wiphy_name(local->hw.wiphy), local->open_count);
@@ -2288,7 +2308,6 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 		if (!netdev)
 			kfree(sdata);
 	}
-	wiphy_unlock(local->hw.wiphy);
 }
 
 static int netdev_notify(struct notifier_block *nb,
@@ -2342,3 +2361,22 @@ void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata)
 	else if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
 		atomic_dec(&sdata->u.vlan.num_mcast_sta);
 }
+
+void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+
+	if (ieee80211_hw_check(&local->hw, HANDLES_QUIET_CSA))
+		return;
+
+	ieee80211_stop_vif_queues_norefcount(local, sdata,
+					     IEEE80211_QUEUE_STOP_REASON_CSA);
+}
+
+void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+
+	ieee80211_wake_vif_queues_norefcount(local, sdata,
+					     IEEE80211_QUEUE_STOP_REASON_CSA);
+}