Merge tag 'mac80211-next-for-net-next-2021-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
A few more things:
* Use correct DFS domain for self-managed devices
* some preparations for transmit power element handling
and other 6 GHz regulatory handling
* TWT support in AP mode in mac80211
====================

Signed-off-by: David S. Miller <[e-mail]>

include/linux/ieee80211.h

···
 	} u;
 } __packed __aligned(2);
 
+#define IEEE80211_TWT_CONTROL_NDP			BIT(0)
+#define IEEE80211_TWT_CONTROL_RESP_MODE			BIT(1)
+#define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST	BIT(3)
+#define IEEE80211_TWT_CONTROL_RX_DISABLED		BIT(4)
+#define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT		BIT(5)
+
+#define IEEE80211_TWT_REQTYPE_REQUEST			BIT(0)
+#define IEEE80211_TWT_REQTYPE_SETUP_CMD			GENMASK(3, 1)
+#define IEEE80211_TWT_REQTYPE_TRIGGER			BIT(4)
+#define IEEE80211_TWT_REQTYPE_IMPLICIT			BIT(5)
+#define IEEE80211_TWT_REQTYPE_FLOWTYPE			BIT(6)
+#define IEEE80211_TWT_REQTYPE_FLOWID			GENMASK(9, 7)
+#define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP		GENMASK(14, 10)
+#define IEEE80211_TWT_REQTYPE_PROTECTION		BIT(15)
+
+enum ieee80211_twt_setup_cmd {
+	TWT_SETUP_CMD_REQUEST,
+	TWT_SETUP_CMD_SUGGEST,
+	TWT_SETUP_CMD_DEMAND,
+	TWT_SETUP_CMD_GROUPING,
+	TWT_SETUP_CMD_ACCEPT,
+	TWT_SETUP_CMD_ALTERNATE,
+	TWT_SETUP_CMD_DICTATE,
+	TWT_SETUP_CMD_REJECT,
+};
+
+struct ieee80211_twt_params {
+	__le16 req_type;
+	__le64 twt;
+	u8 min_twt_dur;
+	__le16 mantissa;
+	u8 channel;
+} __packed;
+
+struct ieee80211_twt_setup {
+	u8 dialog_token;
+	u8 element_id;
+	u8 length;
+	u8 control;
+	u8 params[];
+} __packed;
+
 struct ieee80211_mgmt {
 	__le16 frame_control;
 	__le16 duration;
···
 					__le16 toa_error;
 					u8 variable[0];
 				} __packed ftm;
+				struct {
+					u8 action_code;
+					u8 variable[];
+				} __packed s1g;
 			} u;
 		} __packed action;
 	} u;
···
 #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR		0x40000000
 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED		0x80000000
 
+#define IEEE80211_6GHZ_CTRL_REG_LPI_AP	0
+#define IEEE80211_6GHZ_CTRL_REG_SP_AP	1
+
 /**
  * ieee80211_he_6ghz_oper - HE 6 GHz operation Information field
  * @primary: primary channel
···
 #define		IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ	2
 #define		IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ	3
 #define IEEE80211_HE_6GHZ_OPER_CTRL_DUP_BEACON	0x4
+#define IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO	0x38
 	u8 control;
 	u8 ccfs0;
 	u8 ccfs1;
 	u8 minrate;
 } __packed;
+
+/*
+ * In "9.4.2.161 Transmit Power Envelope element" of "IEEE Std 802.11ax-2021",
+ * it show four types in "Table 9-275a-Maximum Transmit Power Interpretation
+ * subfield encoding", and two category for each type in "Table E-12-Regulatory
+ * Info subfield encoding in the United States".
+ * So it it totally max 8 Transmit Power Envelope element.
+ */
+#define IEEE80211_TPE_MAX_IE_COUNT	8
+/*
+ * In "Table 9-277—Meaning of Maximum Transmit Power Count subfield"
+ * of "IEEE Std 802.11ax™‐2021", the max power level is 8.
+ */
+#define IEEE80211_MAX_NUM_PWR_LEVEL	8
+
+#define IEEE80211_TPE_MAX_POWER_COUNT	8
+
+/* transmit power interpretation type of transmit power envelope element */
+enum ieee80211_tx_power_intrpt_type {
+	IEEE80211_TPE_LOCAL_EIRP,
+	IEEE80211_TPE_LOCAL_EIRP_PSD,
+	IEEE80211_TPE_REG_CLIENT_EIRP,
+	IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
+};
+
+/**
+ * struct ieee80211_tx_pwr_env
+ *
+ * This structure represents the "Transmit Power Envelope element"
+ */
+struct ieee80211_tx_pwr_env {
+	u8 tx_power_info;
+	s8 tx_power[IEEE80211_TPE_MAX_POWER_COUNT];
+} __packed;
+
+#define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x7
+#define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
+#define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xC0
 
 /*
  * ieee80211_he_oper_size - calculate 802.11ax HE Operations IE size
···
 	WLAN_EID_VHT_OPERATION = 192,
 	WLAN_EID_EXTENDED_BSS_LOAD = 193,
 	WLAN_EID_WIDE_BW_CHANNEL_SWITCH = 194,
-	WLAN_EID_VHT_TX_POWER_ENVELOPE = 195,
+	WLAN_EID_TX_POWER_ENVELOPE = 195,
 	WLAN_EID_CHANNEL_SWITCH_WRAPPER = 196,
 	WLAN_EID_AID = 197,
 	WLAN_EID_QUIET_CHANNEL = 198,
···
 	WLAN_EID_AID_RESPONSE = 211,
 	WLAN_EID_S1G_BCN_COMPAT = 213,
 	WLAN_EID_S1G_SHORT_BCN_INTERVAL = 214,
+	WLAN_EID_S1G_TWT = 216,
 	WLAN_EID_S1G_CAPABILITIES = 217,
 	WLAN_EID_VENDOR_SPECIFIC = 221,
 	WLAN_EID_QOS_PARAMETER = 222,
···
 	WLAN_CATEGORY_FST = 18,
 	WLAN_CATEGORY_UNPROT_DMG = 20,
 	WLAN_CATEGORY_VHT = 21,
+	WLAN_CATEGORY_S1G = 22,
 	WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
 	WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
 };
···
 	WLAN_KEY_LEN_BIP_CMAC_256 = 32,
 	WLAN_KEY_LEN_BIP_GMAC_128 = 16,
 	WLAN_KEY_LEN_BIP_GMAC_256 = 32,
+};
+
+enum ieee80211_s1g_actioncode {
+	WLAN_S1G_AID_SWITCH_REQUEST,
+	WLAN_S1G_AID_SWITCH_RESPONSE,
+	WLAN_S1G_SYNC_CONTROL,
+	WLAN_S1G_STA_INFO_ANNOUNCE,
+	WLAN_S1G_EDCA_PARAM_SET,
+	WLAN_S1G_EL_OPERATION,
+	WLAN_S1G_TWT_SETUP,
+	WLAN_S1G_TWT_TEARDOWN,
+	WLAN_S1G_SECT_GROUP_ID_LIST,
+	WLAN_S1G_SECT_ID_FEEDBACK,
+	WLAN_S1G_TWT_INFORMATION = 11,
 };
 
 #define IEEE80211_WEP_IV_LEN		4

include/net/mac80211.h

···
  * @set_sar_specs: Update the SAR (TX power) settings.
  * @sta_set_decap_offload: Called to notify the driver when a station is allowed
  *	to use rx decapsulation offload
+ * @add_twt_setup: Update hw with TWT agreement parameters received from the peer.
+ *	This callback allows the hw to check if requested parameters
+ *	are supported and if there is enough room for a new agreement.
+ *	The hw is expected to set agreement result in the req_type field of
+ *	twt structure.
+ * @twt_teardown_request: Update the hw with TWT teardown request received
+ *	from the peer.
  */
 struct ieee80211_ops {
 	void (*tx)(struct ieee80211_hw *hw,
···
 	void (*sta_set_decap_offload)(struct ieee80211_hw *hw,
 				      struct ieee80211_vif *vif,
 				      struct ieee80211_sta *sta, bool enabled);
+	void (*add_twt_setup)(struct ieee80211_hw *hw,
+			      struct ieee80211_sta *sta,
+			      struct ieee80211_twt_setup *twt);
+	void (*twt_teardown_request)(struct ieee80211_hw *hw,
+				     struct ieee80211_sta *sta, u8 flowid);
 };
 
 /**

net/mac80211/driver-ops.h

···
 	trace_drv_return_void(local);
 }
 
+static inline void drv_add_twt_setup(struct ieee80211_local *local,
+				     struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_sta *sta,
+				     struct ieee80211_twt_setup *twt)
+{
+	struct ieee80211_twt_params *twt_agrt;
+
+	might_sleep();
+
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	twt_agrt = (void *)twt->params;
+
+	trace_drv_add_twt_setup(local, sta, twt, twt_agrt);
+	local->ops->add_twt_setup(&local->hw, sta, twt);
+	trace_drv_return_void(local);
+}
+
+static inline void drv_twt_teardown_request(struct ieee80211_local *local,
+					    struct ieee80211_sub_if_data *sdata,
+					    struct ieee80211_sta *sta,
+					    u8 flowid)
+{
+	might_sleep();
+	if (!check_sdata_in_driver(sdata))
+		return;
+
+	if (!local->ops->twt_teardown_request)
+		return;
+
+	trace_drv_twt_teardown_request(local, sta, flowid);
+	local->ops->twt_teardown_request(&local->hw, sta, flowid);
+	trace_drv_return_void(local);
+}
+
 #endif /* __MAC80211_DRIVER_OPS */

net/mac80211/ieee80211_i.h

···
 
 	struct work_struct work;
 	struct sk_buff_head skb_queue;
+	struct sk_buff_head status_queue;
 
 	u8 needed_rx_chains;
 	enum ieee80211_smps_mode smps_mode;
···
 	const struct ieee80211_he_spr *he_spr;
 	const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
 	const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
+	const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
 	const u8 *uora_element;
 	const u8 *mesh_id;
 	const u8 *peering;
···
 	u8 perr_len;
 	u8 country_elem_len;
 	u8 bssid_index_len;
+	u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
+	u8 tx_pwr_env_num;
 
 	/* whether a parse error occurred while retrieving these elements */
 	bool parse_error;
···
 
 /* S1G */
 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
+bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
+void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
+				 struct sk_buff *skb);
+void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
+				     struct sk_buff *skb);
 
 /* Spectrum management */
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,

net/mac80211/iface.c

···
 		 */
 		ieee80211_free_keys(sdata, true);
 		skb_queue_purge(&sdata->skb_queue);
+		skb_queue_purge(&sdata->status_queue);
 	}
 
 	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
···
 	}
 
 	skb_queue_head_init(&sdata->skb_queue);
+	skb_queue_head_init(&sdata->status_queue);
 	INIT_WORK(&sdata->work, ieee80211_iface_work);
 
 	return 0;
···
 			WARN_ON(1);
 			break;
 		}
+	} else if (ieee80211_is_action(mgmt->frame_control) &&
+		   mgmt->u.action.category == WLAN_CATEGORY_S1G) {
+		switch (mgmt->u.action.u.s1g.action_code) {
+		case WLAN_S1G_TWT_TEARDOWN:
+		case WLAN_S1G_TWT_SETUP:
+			ieee80211_s1g_rx_twt_action(sdata, skb);
+			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);
···
 	}
 }
 
+static void ieee80211_iface_process_status(struct ieee80211_sub_if_data *sdata,
+					   struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (void *)skb->data;
+
+	if (ieee80211_is_action(mgmt->frame_control) &&
+	    mgmt->u.action.category == WLAN_CATEGORY_S1G) {
+		switch (mgmt->u.action.u.s1g.action_code) {
+		case WLAN_S1G_TWT_TEARDOWN:
+		case WLAN_S1G_TWT_SETUP:
+			ieee80211_s1g_status_twt_action(sdata, skb);
+			break;
+		default:
+			break;
+		}
+	}
+}
+
 static void ieee80211_iface_work(struct work_struct *work)
 {
 	struct ieee80211_sub_if_data *sdata =
···
 			ieee80211_iface_process_skb(local, sdata, skb);
 
 		kfree_skb(skb);
+		kcov_remote_stop();
+	}
+
+	/* process status queue */
+	while ((skb = skb_dequeue(&sdata->status_queue))) {
+		kcov_remote_start_common(skb_get_kcov_handle(skb));
+
+		ieee80211_iface_process_status(sdata, skb);
+		kfree_skb(skb);
+
 		kcov_remote_stop();
 	}
 
···
 	}
 
 	skb_queue_head_init(&sdata->skb_queue);
+	skb_queue_head_init(&sdata->status_queue);
 	INIT_WORK(&sdata->work, ieee80211_iface_work);
 	INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work);
 	INIT_WORK(&sdata->csa_finalize_work, ieee80211_csa_finalize_work);

net/mac80211/rx.c

···
 	return RX_CONTINUE;
 }
 
+static bool
+ieee80211_process_rx_twt_action(struct ieee80211_rx_data *rx)
+{
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)rx->skb->data;
+	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(rx->skb);
+	struct ieee80211_sub_if_data *sdata = rx->sdata;
+	const struct ieee80211_sta_he_cap *hecap;
+	struct ieee80211_supported_band *sband;
+
+	/* TWT actions are only supported in AP for the moment */
+	if (sdata->vif.type != NL80211_IFTYPE_AP)
+		return false;
+
+	if (!rx->local->ops->add_twt_setup)
+		return false;
+
+	sband = rx->local->hw.wiphy->bands[status->band];
+	hecap = ieee80211_get_he_iftype_cap(sband,
+					    ieee80211_vif_type_p2p(&sdata->vif));
+	if (!hecap)
+		return false;
+
+	if (!(hecap->he_cap_elem.mac_cap_info[0] &
+	      IEEE80211_HE_MAC_CAP0_TWT_RES))
+		return false;
+
+	if (!rx->sta)
+		return false;
+
+	switch (mgmt->u.action.u.s1g.action_code) {
+	case WLAN_S1G_TWT_SETUP: {
+		struct ieee80211_twt_setup *twt;
+
+		if (rx->skb->len < IEEE80211_MIN_ACTION_SIZE +
+				   1 + /* action code */
+				   sizeof(struct ieee80211_twt_setup) +
+				   2 /* TWT req_type agrt */)
+			break;
+
+		twt = (void *)mgmt->u.action.u.s1g.variable;
+		if (twt->element_id != WLAN_EID_S1G_TWT)
+			break;
+
+		if (rx->skb->len < IEEE80211_MIN_ACTION_SIZE +
+				   4 + /* action code + token + tlv */
+				   twt->length)
+			break;
+
+		return true; /* queue the frame */
+	}
+	case WLAN_S1G_TWT_TEARDOWN:
+		if (rx->skb->len < IEEE80211_MIN_ACTION_SIZE + 2)
+			break;
+
+		return true; /* queue the frame */
+	default:
+		break;
+	}
+
+	return false;
+}
+
 static ieee80211_rx_result debug_noinline
 ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 {
···
 		    !mesh_path_sel_is_hwmp(sdata))
 			break;
 		goto queue;
+	case WLAN_CATEGORY_S1G:
+		switch (mgmt->u.action.u.s1g.action_code) {
+		case WLAN_S1G_TWT_SETUP:
+		case WLAN_S1G_TWT_TEARDOWN:
+			if (ieee80211_process_rx_twt_action(rx))
+				goto queue;
+			break;
+		default:
+			break;
+		}
+		break;
 	}
 
 	return RX_CONTINUE;

net/mac80211/s1g.c

···
 #include <linux/ieee80211.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
+#include "driver-ops.h"
 
 void ieee80211_s1g_sta_rate_init(struct sta_info *sta)
 {
···
 	sta->tx_stats.last_rate.flags |= IEEE80211_TX_RC_S1G_MCS;
 	sta->rx_stats.last_rate =
 			STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_S1G);
+}
+
+bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+
+	if (likely(!ieee80211_is_action(mgmt->frame_control)))
+		return false;
+
+	if (likely(mgmt->u.action.category != WLAN_CATEGORY_S1G))
+		return false;
+
+	return mgmt->u.action.u.s1g.action_code == WLAN_S1G_TWT_SETUP;
+}
+
+static void
+ieee80211_s1g_send_twt_setup(struct ieee80211_sub_if_data *sdata, const u8 *da,
+			     const u8 *bssid, struct ieee80211_twt_setup *twt)
+{
+	int len = IEEE80211_MIN_ACTION_SIZE + 4 + twt->length;
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_mgmt *mgmt;
+	struct sk_buff *skb;
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
+	if (!skb)
+		return;
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	mgmt = skb_put_zero(skb, len);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+	memcpy(mgmt->da, da, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+	memcpy(mgmt->bssid, bssid, ETH_ALEN);
+
+	mgmt->u.action.category = WLAN_CATEGORY_S1G;
+	mgmt->u.action.u.s1g.action_code = WLAN_S1G_TWT_SETUP;
+	memcpy(mgmt->u.action.u.s1g.variable, twt, 3 + twt->length);
+
+	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
+					IEEE80211_TX_INTFL_MLME_CONN_TX |
+					IEEE80211_TX_CTL_REQ_TX_STATUS;
+	ieee80211_tx_skb(sdata, skb);
+}
+
+static void
+ieee80211_s1g_send_twt_teardown(struct ieee80211_sub_if_data *sdata,
+				const u8 *da, const u8 *bssid, u8 flowid)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_mgmt *mgmt;
+	struct sk_buff *skb;
+	u8 *id;
+
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+			    IEEE80211_MIN_ACTION_SIZE + 2);
+	if (!skb)
+		return;
+
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	mgmt = skb_put_zero(skb, IEEE80211_MIN_ACTION_SIZE + 2);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+	memcpy(mgmt->da, da, ETH_ALEN);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+	memcpy(mgmt->bssid, bssid, ETH_ALEN);
+
+	mgmt->u.action.category = WLAN_CATEGORY_S1G;
+	mgmt->u.action.u.s1g.action_code = WLAN_S1G_TWT_TEARDOWN;
+	id = (u8 *)mgmt->u.action.u.s1g.variable;
+	*id = flowid;
+
+	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
+					IEEE80211_TX_CTL_REQ_TX_STATUS;
+	ieee80211_tx_skb(sdata, skb);
+}
+
+static void
+ieee80211_s1g_rx_twt_setup(struct ieee80211_sub_if_data *sdata,
+			   struct sta_info *sta, struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (void *)skb->data;
+	struct ieee80211_twt_setup *twt = (void *)mgmt->u.action.u.s1g.variable;
+	struct ieee80211_twt_params *twt_agrt = (void *)twt->params;
+
+	twt_agrt->req_type &= cpu_to_le16(~IEEE80211_TWT_REQTYPE_REQUEST);
+
+	/* broadcast TWT not supported yet */
+	if (twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST) {
+		le16p_replace_bits(&twt_agrt->req_type,
+				   TWT_SETUP_CMD_REJECT,
+				   IEEE80211_TWT_REQTYPE_SETUP_CMD);
+		goto out;
+	}
+
+	drv_add_twt_setup(sdata->local, sdata, &sta->sta, twt);
+out:
+	ieee80211_s1g_send_twt_setup(sdata, mgmt->sa, sdata->vif.addr, twt);
+}
+
+static void
+ieee80211_s1g_rx_twt_teardown(struct ieee80211_sub_if_data *sdata,
+			      struct sta_info *sta, struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+
+	drv_twt_teardown_request(sdata->local, sdata, &sta->sta,
+				 mgmt->u.action.u.s1g.variable[0]);
+}
+
+static void
+ieee80211_s1g_tx_twt_setup_fail(struct ieee80211_sub_if_data *sdata,
+				struct sta_info *sta, struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+	struct ieee80211_twt_setup *twt = (void *)mgmt->u.action.u.s1g.variable;
+	struct ieee80211_twt_params *twt_agrt = (void *)twt->params;
+	u8 flowid = le16_get_bits(twt_agrt->req_type,
+				  IEEE80211_TWT_REQTYPE_FLOWID);
+
+	drv_twt_teardown_request(sdata->local, sdata, &sta->sta, flowid);
+
+	ieee80211_s1g_send_twt_teardown(sdata, mgmt->sa, sdata->vif.addr,
+					flowid);
+}
+
+void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
+				 struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
+
+	mutex_lock(&local->sta_mtx);
+
+	sta = sta_info_get_bss(sdata, mgmt->sa);
+	if (!sta)
+		goto out;
+
+	switch (mgmt->u.action.u.s1g.action_code) {
+	case WLAN_S1G_TWT_SETUP:
+		ieee80211_s1g_rx_twt_setup(sdata, sta, skb);
+		break;
+	case WLAN_S1G_TWT_TEARDOWN:
+		ieee80211_s1g_rx_twt_teardown(sdata, sta, skb);
+		break;
+	default:
+		break;
+	}
+
+out:
+	mutex_unlock(&local->sta_mtx);
+}
+
+void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
+				     struct sk_buff *skb)
+{
+	struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
+
+	mutex_lock(&local->sta_mtx);
+
+	sta = sta_info_get_bss(sdata, mgmt->da);
+	if (!sta)
+		goto out;
+
+	switch (mgmt->u.action.u.s1g.action_code) {
+	case WLAN_S1G_TWT_SETUP:
+		/* process failed twt setup frames */
+		ieee80211_s1g_tx_twt_setup_fail(sdata, sta, skb);
+		break;
+	default:
+		break;
+	}
+
+out:
+	mutex_unlock(&local->sta_mtx);
 }

net/mac80211/status.c

···
 			/* Check to see if packet is a TDLS teardown packet */
 			if (ieee80211_is_data(hdr->frame_control) &&
 			    (ieee80211_get_tdls_action(skb, hdr_size) ==
-			     WLAN_TDLS_TEARDOWN))
+			     WLAN_TDLS_TEARDOWN)) {
 				ieee80211_tdls_td_tx_handle(local, sdata, skb,
 							    info->flags);
-			else
+			} else if (ieee80211_s1g_is_twt_setup(skb)) {
+				if (!acked) {
+					struct sk_buff *qskb;
+
+					qskb = skb_clone(skb, GFP_ATOMIC);
+					if (qskb) {
+						skb_queue_tail(&sdata->status_queue,
+							       qskb);
+						ieee80211_queue_work(&local->hw,
+								     &sdata->work);
+					}
+				}
+			} else {
 				ieee80211_mgd_conn_tx_status(sdata,
 							     hdr->frame_control,
 							     acked);
+			}
 		}
 
 		rcu_read_unlock();

net/mac80211/trace.h

···
 	TP_ARGS(local, sdata, sta, enabled)
 );
 
+TRACE_EVENT(drv_add_twt_setup,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sta *sta,
+		 struct ieee80211_twt_setup *twt,
+		 struct ieee80211_twt_params *twt_agrt),
+
+	TP_ARGS(local, sta, twt, twt_agrt),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		STA_ENTRY
+		__field(u8, dialog_token)
+		__field(u8, control)
+		__field(__le16, req_type)
+		__field(__le64, twt)
+		__field(u8, duration)
+		__field(__le16, mantissa)
+		__field(u8, channel)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		STA_ASSIGN;
+		__entry->dialog_token = twt->dialog_token;
+		__entry->control = twt->control;
+		__entry->req_type = twt_agrt->req_type;
+		__entry->twt = twt_agrt->twt;
+		__entry->duration = twt_agrt->min_twt_dur;
+		__entry->mantissa = twt_agrt->mantissa;
+		__entry->channel = twt_agrt->channel;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT STA_PR_FMT
+		" token:%d control:0x%02x req_type:0x%04x"
+		" twt:%llu duration:%d mantissa:%d channel:%d",
+		LOCAL_PR_ARG, STA_PR_ARG, __entry->dialog_token,
+		__entry->control, le16_to_cpu(__entry->req_type),
+		le64_to_cpu(__entry->twt), __entry->duration,
+		le16_to_cpu(__entry->mantissa), __entry->channel
+	)
+);
+
+TRACE_EVENT(drv_twt_teardown_request,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sta *sta, u8 flowid),
+
+	TP_ARGS(local, sta, flowid),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		STA_ENTRY
+		__field(u8, flowid)
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		STA_ASSIGN;
+		__entry->flowid = flowid;
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT STA_PR_FMT " flowid:%d",
+		LOCAL_PR_ARG, STA_PR_ARG, __entry->flowid
+	)
+);
+
 #endif /* !__MAC80211_DRIVER_TRACE || TRACE_HEADER_MULTI_READ */
 
 #undef TRACE_INCLUDE_PATH

net/mac80211/util.c

···
 			elems->rsnx = pos;
 			elems->rsnx_len = elen;
 			break;
+		case WLAN_EID_TX_POWER_ENVELOPE:
+			if (elen < 1 ||
+			    elen > sizeof(struct ieee80211_tx_pwr_env))
+				break;
+
+			if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env))
+				break;
+
+			elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos;
+			elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen;
+			elems->tx_pwr_env_num++;
+			break;
 		case WLAN_EID_EXTENSION:
 			ieee80211_parse_extension_element(calc_crc ?
 								&crc : NULL,

net/wireless/reg.c

···
 {
 	const struct ieee80211_regdomain *regd = NULL;
 	const struct ieee80211_regdomain *wiphy_regd = NULL;
+	enum nl80211_dfs_regions dfs_region;
 
 	rcu_read_lock();
 	regd = get_cfg80211_regdom();
+	dfs_region = regd->dfs_region;
 
 	if (!wiphy)
 		goto out;
···
 	wiphy_regd = get_wiphy_regdom(wiphy);
 	if (!wiphy_regd)
 		goto out;
+
+	if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) {
+		dfs_region = wiphy_regd->dfs_region;
+		goto out;
+	}
 
 	if (wiphy_regd->dfs_region == regd->dfs_region)
 		goto out;
···
 out:
 	rcu_read_unlock();
 
-	return regd->dfs_region;
+	return dfs_region;
 }
 
 static void rcu_free_regdom(const struct ieee80211_regdomain *r)