1 files changed, 125 insertions, 430 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index d7513a503be..927b4ea0128 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -468,327 +468,6 @@ void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
 		rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 }
 
-static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
-{
-	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	struct ieee80211_local *local = sdata->local;
-	struct rate_control_ref *ref = local->rate_ctrl;
-	struct timespec uptime;
-	u64 packets = 0;
-	u32 thr = 0;
-	int i, ac;
-
-	sinfo->generation = sdata->local->sta_generation;
-
-	sinfo->filled = STATION_INFO_INACTIVE_TIME |
-			STATION_INFO_RX_BYTES64 |
-			STATION_INFO_TX_BYTES64 |
-			STATION_INFO_RX_PACKETS |
-			STATION_INFO_TX_PACKETS |
-			STATION_INFO_TX_RETRIES |
-			STATION_INFO_TX_FAILED |
-			STATION_INFO_TX_BITRATE |
-			STATION_INFO_RX_BITRATE |
-			STATION_INFO_RX_DROP_MISC |
-			STATION_INFO_BSS_PARAM |
-			STATION_INFO_CONNECTED_TIME |
-			STATION_INFO_STA_FLAGS |
-			STATION_INFO_BEACON_LOSS_COUNT;
-
-	do_posix_clock_monotonic_gettime(&uptime);
-	sinfo->connected_time = uptime.tv_sec - sta->last_connected;
-
-	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
-	sinfo->tx_bytes = 0;
-	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
-		sinfo->tx_bytes += sta->tx_bytes[ac];
-		packets += sta->tx_packets[ac];
-	}
-	sinfo->tx_packets = packets;
-	sinfo->rx_bytes = sta->rx_bytes;
-	sinfo->rx_packets = sta->rx_packets;
-	sinfo->tx_retries = sta->tx_retry_count;
-	sinfo->tx_failed = sta->tx_retry_failed;
-	sinfo->rx_dropped_misc = sta->rx_dropped;
-	sinfo->beacon_loss_count = sta->beacon_loss_count;
-
-	if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
-	    (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
-		sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
-		if (!local->ops->get_rssi ||
-		    drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
-			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);
-
-	if (ieee80211_vif_is_mesh(&sdata->vif)) {
-#ifdef CONFIG_MAC80211_MESH
-		sinfo->filled |= STATION_INFO_LLID |
-				 STATION_INFO_PLID |
-				 STATION_INFO_PLINK_STATE |
-				 STATION_INFO_LOCAL_PM |
-				 STATION_INFO_PEER_PM |
-				 STATION_INFO_NONPEER_PM;
-
-		sinfo->llid = sta->llid;
-		sinfo->plid = sta->plid;
-		sinfo->plink_state = sta->plink_state;
-		if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
-			sinfo->filled |= STATION_INFO_T_OFFSET;
-			sinfo->t_offset = sta->t_offset;
-		}
-		sinfo->local_pm = sta->local_pm;
-		sinfo->peer_pm = sta->peer_pm;
-		sinfo->nonpeer_pm = sta->nonpeer_pm;
-#endif
-	}
-
-	sinfo->bss_param.flags = 0;
-	if (sdata->vif.bss_conf.use_cts_prot)
-		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
-	if (sdata->vif.bss_conf.use_short_preamble)
-		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
-	if (sdata->vif.bss_conf.use_short_slot)
-		sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
-	sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
-	sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
-
-	sinfo->sta_flags.set = 0;
-	sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
-				BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
-				BIT(NL80211_STA_FLAG_WME) |
-				BIT(NL80211_STA_FLAG_MFP) |
-				BIT(NL80211_STA_FLAG_AUTHENTICATED) |
-				BIT(NL80211_STA_FLAG_ASSOCIATED) |
-				BIT(NL80211_STA_FLAG_TDLS_PEER);
-	if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
-	if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
-	if (test_sta_flag(sta, WLAN_STA_WME))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
-	if (test_sta_flag(sta, WLAN_STA_MFP))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
-	if (test_sta_flag(sta, WLAN_STA_AUTH))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
-	if (test_sta_flag(sta, WLAN_STA_ASSOC))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
-	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
-		sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
-
-	/* check if the driver has a SW RC implementation */
-	if (ref && ref->ops->get_expected_throughput)
-		thr = ref->ops->get_expected_throughput(sta->rate_ctrl_priv);
-	else
-		thr = drv_get_expected_throughput(local, &sta->sta);
-
-	if (thr != 0) {
-		sinfo->filled |= STATION_INFO_EXPECTED_THROUGHPUT;
-		sinfo->expected_throughput = thr;
-	}
-}
-
-static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
-	"rx_packets", "rx_bytes", "wep_weak_iv_count",
-	"rx_duplicates", "rx_fragments", "rx_dropped",
-	"tx_packets", "tx_bytes", "tx_fragments",
-	"tx_filtered", "tx_retry_failed", "tx_retries",
-	"beacon_loss", "sta_state", "txrate", "rxrate", "signal",
-	"channel", "noise", "ch_time", "ch_time_busy",
-	"ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
-};
-#define STA_STATS_LEN	ARRAY_SIZE(ieee80211_gstrings_sta_stats)
-
-static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
-				       struct net_device *dev,
-				       int sset)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	int rv = 0;
-
-	if (sset == ETH_SS_STATS)
-		rv += STA_STATS_LEN;
-
-	rv += drv_get_et_sset_count(sdata, sset);
-
-	if (rv == 0)
-		return -EOPNOTSUPP;
-	return rv;
-}
-
-static void ieee80211_get_et_stats(struct wiphy *wiphy,
-				   struct net_device *dev,
-				   struct ethtool_stats *stats,
-				   u64 *data)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_chanctx_conf *chanctx_conf;
-	struct ieee80211_channel *channel;
-	struct sta_info *sta;
-	struct ieee80211_local *local = sdata->local;
-	struct station_info sinfo;
-	struct survey_info survey;
-	int i, q;
-#define STA_STATS_SURVEY_LEN 7
-
-	memset(data, 0, sizeof(u64) * STA_STATS_LEN);
-
-#define ADD_STA_STATS(sta)				\
-	do {						\
-		data[i++] += sta->rx_packets;		\
-		data[i++] += sta->rx_bytes;		\
-		data[i++] += sta->wep_weak_iv_count;	\
-		data[i++] += sta->num_duplicates;	\
-		data[i++] += sta->rx_fragments;		\
-		data[i++] += sta->rx_dropped;		\
-							\
-		data[i++] += sinfo.tx_packets;		\
-		data[i++] += sinfo.tx_bytes;		\
-		data[i++] += sta->tx_fragments;		\
-		data[i++] += sta->tx_filtered_count;	\
-		data[i++] += sta->tx_retry_failed;	\
-		data[i++] += sta->tx_retry_count;	\
-		data[i++] += sta->beacon_loss_count;	\
-	} while (0)
-
-	/* For Managed stations, find the single station based on BSSID
-	 * and use that.  For interface types, iterate through all available
-	 * stations and add stats for any station that is assigned to this
-	 * network device.
-	 */
-
-	mutex_lock(&local->sta_mtx);
-
-	if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-		sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
-
-		if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
-			goto do_survey;
-
-		sinfo.filled = 0;
-		sta_set_sinfo(sta, &sinfo);
-
-		i = 0;
-		ADD_STA_STATS(sta);
-
-		data[i++] = sta->sta_state;
-
-
-		if (sinfo.filled & STATION_INFO_TX_BITRATE)
-			data[i] = 100000 *
-				cfg80211_calculate_bitrate(&sinfo.txrate);
-		i++;
-		if (sinfo.filled & STATION_INFO_RX_BITRATE)
-			data[i] = 100000 *
-				cfg80211_calculate_bitrate(&sinfo.rxrate);
-		i++;
-
-		if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
-			data[i] = (u8)sinfo.signal_avg;
-		i++;
-	} else {
-		list_for_each_entry(sta, &local->sta_list, list) {
-			/* Make sure this station belongs to the proper dev */
-			if (sta->sdata->dev != dev)
-				continue;
-
-			sinfo.filled = 0;
-			sta_set_sinfo(sta, &sinfo);
-			i = 0;
-			ADD_STA_STATS(sta);
-		}
-	}
-
-do_survey:
-	i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
-	/* Get survey stats for current channel */
-	survey.filled = 0;
-
-	rcu_read_lock();
-	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
-	if (chanctx_conf)
-		channel = chanctx_conf->def.chan;
-	else
-		channel = NULL;
-	rcu_read_unlock();
-
-	if (channel) {
-		q = 0;
-		do {
-			survey.filled = 0;
-			if (drv_get_survey(local, q, &survey) != 0) {
-				survey.filled = 0;
-				break;
-			}
-			q++;
-		} while (channel != survey.channel);
-	}
-
-	if (survey.filled)
-		data[i++] = survey.channel->center_freq;
-	else
-		data[i++] = 0;
-	if (survey.filled & SURVEY_INFO_NOISE_DBM)
-		data[i++] = (u8)survey.noise;
-	else
-		data[i++] = -1LL;
-	if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
-		data[i++] = survey.channel_time;
-	else
-		data[i++] = -1LL;
-	if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
-		data[i++] = survey.channel_time_busy;
-	else
-		data[i++] = -1LL;
-	if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
-		data[i++] = survey.channel_time_ext_busy;
-	else
-		data[i++] = -1LL;
-	if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
-		data[i++] = survey.channel_time_rx;
-	else
-		data[i++] = -1LL;
-	if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
-		data[i++] = survey.channel_time_tx;
-	else
-		data[i++] = -1LL;
-
-	mutex_unlock(&local->sta_mtx);
-
-	if (WARN_ON(i != STA_STATS_LEN))
-		return;
-
-	drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
-}
-
-static void ieee80211_get_et_strings(struct wiphy *wiphy,
-				     struct net_device *dev,
-				     u32 sset, u8 *data)
-{
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	int sz_sta_stats = 0;
-
-	if (sset == ETH_SS_STATS) {
-		sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
-		memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
-	}
-	drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
-}
-
 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 				  int idx, u8 *mac, struct station_info *sinfo)
 {
@@ -875,7 +554,8 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 }
 
 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
-				    const u8 *resp, size_t resp_len)
+				    const u8 *resp, size_t resp_len,
+				    const struct ieee80211_csa_settings *csa)
 {
 	struct probe_resp *new, *old;
 
@@ -891,6 +571,11 @@ static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 	new->len = resp_len;
 	memcpy(new->data, resp, resp_len);
 
+	if (csa)
+		memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
+		       csa->n_counter_offsets_presp *
+		       sizeof(new->csa_counter_offsets[0]));
+
 	rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 	if (old)
 		kfree_rcu(old, rcu_head);
@@ -899,7 +584,8 @@ static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 }
 
 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
-				   struct cfg80211_beacon_data *params)
+				   struct cfg80211_beacon_data *params,
+				   const struct ieee80211_csa_settings *csa)
 {
 	struct beacon_data *new, *old;
 	int new_head_len, new_tail_len;
@@ -943,6 +629,13 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 	new->head_len = new_head_len;
 	new->tail_len = new_tail_len;
 
+	if (csa) {
+		new->csa_current_counter = csa->count;
+		memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
+		       csa->n_counter_offsets_beacon *
+		       sizeof(new->csa_counter_offsets[0]));
+	}
+
 	/* copy in head */
 	if (params->head)
 		memcpy(new->head, params->head, new_head_len);
@@ -957,7 +650,7 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 			memcpy(new->tail, old->tail, new_tail_len);
 
 	err = ieee80211_set_probe_resp(sdata, params->probe_resp,
-				       params->probe_resp_len);
+				       params->probe_resp_len, csa);
 	if (err < 0)
 		return err;
 	if (err == 0)
@@ -1042,7 +735,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 		sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
 					IEEE80211_P2P_OPPPS_ENABLE_BIT;
 
-	err = ieee80211_assign_beacon(sdata, &params->beacon);
+	err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
 	if (err < 0) {
 		ieee80211_vif_release_channel(sdata);
 		return err;
@@ -1090,38 +783,13 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 	if (!old)
 		return -ENOENT;
 
-	err = ieee80211_assign_beacon(sdata, params);
+	err = ieee80211_assign_beacon(sdata, params, NULL);
 	if (err < 0)
 		return err;
 	ieee80211_bss_info_change_notify(sdata, err);
 	return 0;
 }
 
-bool ieee80211_csa_needs_block_tx(struct ieee80211_local *local)
-{
-	struct ieee80211_sub_if_data *sdata;
-
-	lockdep_assert_held(&local->mtx);
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		if (!ieee80211_sdata_running(sdata))
-			continue;
-
-		if (!sdata->vif.csa_active)
-			continue;
-
-		if (!sdata->csa_block_tx)
-			continue;
-
-		rcu_read_unlock();
-		return true;
-	}
-	rcu_read_unlock();
-
-	return false;
-}
-
 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -1141,10 +809,12 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	/* abort any running channel switch */
 	mutex_lock(&local->mtx);
 	sdata->vif.csa_active = false;
-	if (!ieee80211_csa_needs_block_tx(local))
-		ieee80211_wake_queues_by_reason(&local->hw,
-					IEEE80211_MAX_QUEUE_MAP,
-					IEEE80211_QUEUE_STOP_REASON_CSA);
+	if (sdata->csa_block_tx) {
+		ieee80211_wake_vif_queues(local, sdata,
+					  IEEE80211_QUEUE_STOP_REASON_CSA);
+		sdata->csa_block_tx = false;
+	}
+
 	mutex_unlock(&local->mtx);
 
 	kfree(sdata->u.ap.next_beacon);
@@ -1327,9 +997,12 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 		}
 	}
 
-	ret = sta_apply_auth_flags(local, sta, mask, set);
-	if (ret)
-		return ret;
+	/* auth flags will be set later for TDLS stations */
+	if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+		ret = sta_apply_auth_flags(local, sta, mask, set);
+		if (ret)
+			return ret;
+	}
 
 	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
@@ -1466,6 +1139,13 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 #endif
 	}
 
+	/* set the STA state after all sta info from usermode has been set */
+	if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
+		ret = sta_apply_auth_flags(local, sta, mask, set);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -3073,7 +2753,8 @@ static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
 
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP:
-		err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
+		err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
+					      NULL);
 		kfree(sdata->u.ap.next_beacon);
 		sdata->u.ap.next_beacon = NULL;
 
@@ -3111,17 +2792,35 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
 
 	sdata_assert_lock(sdata);
 	lockdep_assert_held(&local->mtx);
+	lockdep_assert_held(&local->chanctx_mtx);
 
-	sdata->radar_required = sdata->csa_radar_required;
-	err = ieee80211_vif_change_channel(sdata, &changed);
-	if (err < 0)
-		return err;
+	/*
+	 * using reservation isn't immediate as it may be deferred until later
+	 * with multi-vif. once reservation is complete it will re-schedule the
+	 * work with no reserved_chanctx so verify chandef to check if it
+	 * completed successfully
+	 */
 
-	if (!local->use_chanctx) {
-		local->_oper_chandef = sdata->csa_chandef;
-		ieee80211_hw_config(local, 0);
+	if (sdata->reserved_chanctx) {
+		/*
+		 * with multi-vif csa driver may call ieee80211_csa_finish()
+		 * many times while waiting for other interfaces to use their
+		 * reservations
+		 */
+		if (sdata->reserved_ready)
+			return 0;
+
+		err = ieee80211_vif_use_reserved_context(sdata);
+		if (err)
+			return err;
+
+		return 0;
 	}
 
+	if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
+					&sdata->csa_chandef))
+		return -EINVAL;
+
 	sdata->vif.csa_active = false;
 
 	err = ieee80211_set_after_csa_beacon(sdata, &changed);
@@ -3131,10 +2830,11 @@ static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
 	ieee80211_bss_info_change_notify(sdata, changed);
 	cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
 
-	if (!ieee80211_csa_needs_block_tx(local))
-		ieee80211_wake_queues_by_reason(&local->hw,
-					IEEE80211_MAX_QUEUE_MAP,
-					IEEE80211_QUEUE_STOP_REASON_CSA);
+	if (sdata->csa_block_tx) {
+		ieee80211_wake_vif_queues(local, sdata,
+					  IEEE80211_QUEUE_STOP_REASON_CSA);
+		sdata->csa_block_tx = false;
+	}
 
 	return 0;
 }
@@ -3157,6 +2857,7 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
 
 	sdata_lock(sdata);
 	mutex_lock(&local->mtx);
+	mutex_lock(&local->chanctx_mtx);
 
 	/* AP might have been stopped while waiting for the lock. */
 	if (!sdata->vif.csa_active)
@@ -3168,6 +2869,7 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
 	ieee80211_csa_finalize(sdata);
 
 unlock:
+	mutex_unlock(&local->chanctx_mtx);
 	mutex_unlock(&local->mtx);
 	sdata_unlock(sdata);
 }
@@ -3176,6 +2878,7 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
 				    struct cfg80211_csa_settings *params,
 				    u32 *changed)
 {
+	struct ieee80211_csa_settings csa = {};
 	int err;
 
 	switch (sdata->vif.type) {
@@ -3210,20 +2913,13 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
 		     IEEE80211_MAX_CSA_COUNTERS_NUM))
 			return -EINVAL;
 
-		/* make sure we don't have garbage in other counters */
-		memset(sdata->csa_counter_offset_beacon, 0,
-		       sizeof(sdata->csa_counter_offset_beacon));
-		memset(sdata->csa_counter_offset_presp, 0,
-		       sizeof(sdata->csa_counter_offset_presp));
-
-		memcpy(sdata->csa_counter_offset_beacon,
-		       params->counter_offsets_beacon,
-		       params->n_counter_offsets_beacon * sizeof(u16));
-		memcpy(sdata->csa_counter_offset_presp,
-		       params->counter_offsets_presp,
-		       params->n_counter_offsets_presp * sizeof(u16));
+		csa.counter_offsets_beacon = params->counter_offsets_beacon;
+		csa.counter_offsets_presp = params->counter_offsets_presp;
+		csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
+		csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
+		csa.count = params->count;
 
-		err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
+		err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
 		if (err < 0) {
 			kfree(sdata->u.ap.next_beacon);
 			return err;
@@ -3319,7 +3015,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx_conf *conf;
 	struct ieee80211_chanctx *chanctx;
-	int err, num_chanctx, changed = 0;
+	int err, changed = 0;
 
 	sdata_assert_lock(sdata);
 	lockdep_assert_held(&local->mtx);
@@ -3334,46 +3030,50 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 				       &sdata->vif.bss_conf.chandef))
 		return -EINVAL;
 
+	/* don't allow another channel switch if one is already active. */
+	if (sdata->vif.csa_active)
+		return -EBUSY;
+
 	mutex_lock(&local->chanctx_mtx);
 	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
 					 lockdep_is_held(&local->chanctx_mtx));
 	if (!conf) {
-		mutex_unlock(&local->chanctx_mtx);
-		return -EBUSY;
+		err = -EBUSY;
+		goto out;
 	}
 
-	/* don't handle for multi-VIF cases */
 	chanctx = container_of(conf, struct ieee80211_chanctx, conf);
-	if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
-		mutex_unlock(&local->chanctx_mtx);
-		return -EBUSY;
+	if (!chanctx) {
+		err = -EBUSY;
+		goto out;
 	}
-	num_chanctx = 0;
-	list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
-		num_chanctx++;
-	mutex_unlock(&local->chanctx_mtx);
 
-	if (num_chanctx > 1)
-		return -EBUSY;
+	err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
+					    chanctx->mode,
+					    params->radar_required);
+	if (err)
+		goto out;
 
-	/* don't allow another channel switch if one is already active. */
-	if (sdata->vif.csa_active)
-		return -EBUSY;
+	/* if reservation is invalid then this will fail */
+	err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
+	if (err) {
+		ieee80211_vif_unreserve_chanctx(sdata);
+		goto out;
+	}
 
 	err = ieee80211_set_csa_beacon(sdata, params, &changed);
-	if (err)
-		return err;
+	if (err) {
+		ieee80211_vif_unreserve_chanctx(sdata);
+		goto out;
+	}
 
-	sdata->csa_radar_required = params->radar_required;
 	sdata->csa_chandef = params->chandef;
 	sdata->csa_block_tx = params->block_tx;
-	sdata->csa_current_counter = params->count;
 	sdata->vif.csa_active = true;
 
 	if (sdata->csa_block_tx)
-		ieee80211_stop_queues_by_reason(&local->hw,
-					IEEE80211_MAX_QUEUE_MAP,
-					IEEE80211_QUEUE_STOP_REASON_CSA);
+		ieee80211_stop_vif_queues(local, sdata,
+					  IEEE80211_QUEUE_STOP_REASON_CSA);
 
 	if (changed) {
 		ieee80211_bss_info_change_notify(sdata, changed);
@@ -3383,7 +3083,9 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 		ieee80211_csa_finalize(sdata);
 	}
 
-	return 0;
+out:
+	mutex_unlock(&local->chanctx_mtx);
+	return err;
 }
 
 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
@@ -3515,10 +3217,23 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 	     sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
 	    params->n_csa_offsets) {
 		int i;
-		u8 c = sdata->csa_current_counter;
+		struct beacon_data *beacon = NULL;
 
-		for (i = 0; i < params->n_csa_offsets; i++)
-			data[params->csa_offsets[i]] = c;
+		rcu_read_lock();
+
+		if (sdata->vif.type == NL80211_IFTYPE_AP)
+			beacon = rcu_dereference(sdata->u.ap.beacon);
+		else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+			beacon = rcu_dereference(sdata->u.ibss.presp);
+		else if (ieee80211_vif_is_mesh(&sdata->vif))
+			beacon = rcu_dereference(sdata->u.mesh.beacon);
+
+		if (beacon)
+			for (i = 0; i < params->n_csa_offsets; i++)
+				data[params->csa_offsets[i]] =
+					beacon->csa_current_counter;
+
+		rcu_read_unlock();
 	}
 
 	IEEE80211_SKB_CB(skb)->flags = flags;
@@ -3598,21 +3313,6 @@ static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
 	return drv_get_antenna(local, tx_ant, rx_ant);
 }
 
-static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
-{
-	struct ieee80211_local *local = wiphy_priv(wiphy);
-
-	return drv_set_ringparam(local, tx, rx);
-}
-
-static void ieee80211_get_ringparam(struct wiphy *wiphy,
-				    u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
-{
-	struct ieee80211_local *local = wiphy_priv(wiphy);
-
-	drv_get_ringparam(local, tx, tx_max, rx, rx_max);
-}
-
 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
 				    struct net_device *dev,
 				    struct cfg80211_gtk_rekey_data *data)
@@ -3844,8 +3544,6 @@ const struct cfg80211_ops mac80211_config_ops = {
 	.mgmt_frame_register = ieee80211_mgmt_frame_register,
 	.set_antenna = ieee80211_set_antenna,
 	.get_antenna = ieee80211_get_antenna,
-	.set_ringparam = ieee80211_set_ringparam,
-	.get_ringparam = ieee80211_get_ringparam,
 	.set_rekey_data = ieee80211_set_rekey_data,
 	.tdls_oper = ieee80211_tdls_oper,
 	.tdls_mgmt = ieee80211_tdls_mgmt,
@@ -3854,9 +3552,6 @@ const struct cfg80211_ops mac80211_config_ops = {
 #ifdef CONFIG_PM
 	.set_wakeup = ieee80211_set_wakeup,
 #endif
-	.get_et_sset_count = ieee80211_get_et_sset_count,
-	.get_et_stats = ieee80211_get_et_stats,
-	.get_et_strings = ieee80211_get_et_strings,
 	.get_channel = ieee80211_cfg_get_channel,
 	.start_radar_detection = ieee80211_start_radar_detection,
 	.channel_switch = ieee80211_channel_switch,