recipes-wifi/linux-mt76/files/patches-3.x/0182-mtk-mt76-mt7996-add-AP-affiliated-link-removal-suppo.patch

From e61df790cc5ef66271a12e14af49f48ad097f7a6 Mon Sep 17 00:00:00 2001
From: Shayne Chen <shayne.chen@mediatek.com>
Date: Fri, 31 May 2024 18:14:59 +0800
Subject: [PATCH 182/199] mtk: mt76: mt7996: add AP affiliated link removal
 support

Add support for ap link removal of MLD reconfiguration.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
---
 mt76_connac_mcu.h |   3 +
 mt7996/main.c     |  68 ++++++++++++---
 mt7996/mcu.c      | 217 ++++++++++++++++++++++++++++++++++++++++++++++
 mt7996/mcu.h      |  89 ++++++++++++++++++-
 mt7996/mt7996.h   |   2 +
 5 files changed, 367 insertions(+), 12 deletions(-)

diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index 545de4ae..fd1bf1d1 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1074,6 +1074,7 @@ enum {
 	MCU_UNI_EVENT_PP = 0x5a,
 	MCU_UNI_EVENT_PER_STA_INFO = 0x6d,
 	MCU_UNI_EVENT_ALL_STA_INFO = 0x6e,
+	MCU_UNI_EVENT_MLD = 0x81,
 };
 
 #define MCU_UNI_CMD_EVENT			BIT(1)
@@ -1319,6 +1320,7 @@ enum {
 	MCU_UNI_CMD_ALL_STA_INFO = 0x6e,
 	MCU_UNI_CMD_ASSERT_DUMP = 0x6f,
 	MCU_UNI_CMD_PTA_3WIRE_CTRL = 0x78,
+	MCU_UNI_CMD_MLD = 0x82,
 };
 
 enum {
@@ -1393,6 +1395,7 @@ enum {
 	UNI_BSS_INFO_PM_DISABLE = 27,
 	UNI_BSS_INFO_BCN_CRIT_UPDATE = 32,
 	UNI_BSS_INFO_BCN_STA_PROF_CSA = 37,
+	UNI_BSS_INFO_BCN_ML_RECONF = 38,
 };
 
 enum {
diff --git a/mt7996/main.c b/mt7996/main.c
index ff0b9c0e..fc6f4ef9 100644
--- a/mt7996/main.c
+++ b/mt7996/main.c
@@ -319,6 +319,21 @@ static void mt7996_remove_bss_conf(struct ieee80211_vif *vif,
 		list_del_init(&mlink->wcid.poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
+	/* reassign a new bss wcid if the previous one was removed */
+	if (vif->txq && ieee80211_vif_is_mld(vif) &&
+	    hweight16(vif->valid_links) > 1) {
+		struct mt76_txq *mtxq = (struct mt76_txq *)vif->txq->drv_priv;
+
+		if (mtxq->wcid == mlink->wcid.idx) {
+			u8 new_link = __ffs(vif->valid_links & ~BIT(link_id));
+			struct mt7996_link_sta *new_mlink =
+				mlink_dereference_protected(&mvif->sta, new_link);
+
+			if (new_mlink)
+				mtxq->wcid = new_mlink->wcid.idx;
+		}
+	}
+
 	mt76_wcid_cleanup(&dev->mt76, &mlink->wcid);
 
 	if (mlink != &mvif->sta.deflink)
@@ -425,7 +440,7 @@ static int mt7996_add_bss_conf(struct mt7996_phy *phy,
 	mt7996_mac_wtbl_update(dev, idx,
 			       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
 
-	if (vif->txq) {
+	if (vif->txq && hweight16(vif->valid_links) <= 1) {
 		mtxq = (struct mt76_txq *)vif->txq->drv_priv;
 		mtxq->wcid = idx;
 	}
@@ -1128,6 +1143,8 @@ static void mt7996_remove_link_sta(struct mt7996_dev *dev,
 {
 	struct ieee80211_sta *sta = link_sta->sta;
 	struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
+	u16 valid_links = sta->valid_links;
+	bool pri_changed;
 	int i;
 
 	if (!mlink)
@@ -1148,6 +1165,7 @@ static void mt7996_remove_link_sta(struct mt7996_dev *dev,
 		mt7996_mac_twt_teardown_flow(dev, mlink, i);
 
 	rcu_assign_pointer(mlink->sta->link[mlink->wcid.link_id], NULL);
+	rcu_assign_pointer(dev->mt76.wcid[mlink->wcid.idx], NULL);
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
 	if (!list_empty(&mlink->wcid.poll_list))
@@ -1156,17 +1174,41 @@ static void mt7996_remove_link_sta(struct mt7996_dev *dev,
 		list_del_init(&mlink->rc_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
-	/* TODO: update primary link */
-	if (sta->valid_links) {
-		if (mlink->wcid.link_id == msta->pri_link)
-			msta->pri_link = msta->sec_link;
+	valid_links &= ~BIT(mlink->wcid.link_id);
+	if (!valid_links)
+		goto done;
 
-		if (sta->valid_links & ~(BIT(msta->pri_link)))
-			msta->sec_link = __ffs(sta->valid_links & ~(BIT(msta->pri_link)));
-		else
-			msta->sec_link = msta->pri_link;
+	/* update primary and secondary link */
+	pri_changed = mlink->wcid.link_id == msta->pri_link;
+	if (pri_changed)
+		msta->pri_link = msta->sec_link;
+
+	if (valid_links & ~(BIT(msta->pri_link)))
+		msta->sec_link = __ffs(valid_links & ~(BIT(msta->pri_link)));
+	else
+		msta->sec_link = msta->pri_link;
+
+	if (pri_changed) {
+		struct mt7996_link_sta *mlink_new =
+			mlink_dereference_protected(msta, msta->pri_link);
+
+		if (!mlink_new)
+			goto done;
+
+		mlink_new->wcid.ampdu_state = mlink->wcid.ampdu_state;
+		for (i = 0; i < ARRAY_SIZE(mlink->wcid.aggr); i++)
+			rcu_assign_pointer(mlink_new->wcid.aggr[i], mlink->wcid.aggr[i]);
+		for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
+			struct mt76_txq *mtxq;
+
+			if (!sta->txq[i])
+				continue;
+			mtxq = (struct mt76_txq *)sta->txq[i]->drv_priv;
+			mtxq->wcid = mlink_new->wcid.idx;
+		}
 	}
 
+done:
 	mt76_wcid_cleanup(&dev->mt76, &mlink->wcid);
 	mt76_wcid_mask_clear(dev->mt76.wcid_mask, mlink->wcid.idx);
 	mt76_wcid_mask_clear(dev->mt76.wcid_phy_mask, mlink->wcid.idx);
@@ -3104,9 +3146,15 @@ mt7996_change_sta_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	mt76_vif_dbg(vif, "STA %pM old=0x%x, new=0x%x\n", sta->addr, old_links, new_links);
 	mutex_lock(&dev->mt76.mutex);
 
-	if (rem)
+	if (rem) {
 		mt7996_mac_sta_remove_links(dev, vif, sta, rem);
 
+		/* Todo: update hw info of MLD STA */
+		/* ret = mt7996_mcu_add_mld_sta(dev, vif, sta, new_links); */
+		/* if (ret) */
+		/* 	goto remove; */
+	}
+
 	ret = mt7996_mac_sta_add_links(dev, vif, sta, add, false);
 	if (ret)
 		goto remove;
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index 4310d35b..662e4f02 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -1350,6 +1350,48 @@ mt7996_mcu_pp_event(struct mt7996_dev *dev, struct sk_buff *skb)
 	}
 }
 
+static void
+mt7996_mcu_mld_reconf_finish(void *priv, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct mt7996_mld_event_data *data = priv;
+	struct mt7996_mcu_mld_ap_reconf_event *reconf = (void *)data->data;
+
+	if (!ether_addr_equal(vif->addr, data->mld_addr))
+		return;
+
+	ieee80211_links_removed(vif, le16_to_cpu(reconf->link_bitmap));
+}
+
+static void
+mt7996_mcu_mld_event(struct mt7996_dev *dev, struct sk_buff *skb)
+{
+	struct mt7996_mcu_mld_event *event = (void *)skb->data;
+	struct mt7996_mld_event_data data = {};
+	struct tlv *tlv;
+	int len;
+
+	memcpy(data.mld_addr, event->mld_addr, ETH_ALEN);
+	skb_pull(skb, sizeof(*event));
+	tlv = (struct tlv *)skb->data;
+	len = skb->len;
+
+	while (len > 0 && le16_to_cpu(tlv->len) <= len) {
+		switch (le16_to_cpu(tlv->tag)) {
+		case UNI_EVENT_MLD_RECONF_AP_REM_TIMER:
+			data.data = (u8 *)tlv;
+			ieee80211_iterate_active_interfaces_atomic(dev->mt76.hw,
+					IEEE80211_IFACE_ITER_RESUME_ALL,
+					mt7996_mcu_mld_reconf_finish, &data);
+			break;
+		default:
+			break;
+		}
+
+		len -= le16_to_cpu(tlv->len);
+		tlv = (struct tlv *)((u8 *)(tlv) + le16_to_cpu(tlv->len));
+	}
+}
+
 static void
 mt7996_mcu_uni_rx_unsolicited_event(struct mt7996_dev *dev, struct sk_buff *skb)
 {
@@ -1378,6 +1420,9 @@ mt7996_mcu_uni_rx_unsolicited_event(struct mt7996_dev *dev, struct sk_buff *skb)
 	case MCU_UNI_EVENT_PP:
 		mt7996_mcu_pp_event(dev, skb);
 		break;
+	case MCU_UNI_EVENT_MLD:
+		mt7996_mcu_mld_event(dev, skb);
+		break;
 #ifdef CONFIG_MTK_DEBUG
 	case MCU_UNI_EVENT_SR:
 		mt7996_mcu_rx_sr_event(dev, skb);
@@ -3169,6 +3214,44 @@ out:
 				     MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true);
 }
 
+int mt7996_mcu_add_mld_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta, unsigned long add)
+{
+	struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
+	struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
+	u8 link_id;
+
+	if (!sta->mlo)
+		return 0;
+
+	for_each_set_bit(link_id, &add, IEEE80211_MLD_MAX_NUM_LINKS) {
+		struct mt7996_bss_conf *mconf =
+			mconf_dereference_protected(mvif, link_id);
+		struct mt7996_link_sta *mlink =
+			mlink_dereference_protected(msta, link_id);
+		struct sk_buff *skb;
+		int ret;
+
+		if (!mconf || !mlink)
+			continue;
+
+		skb = __mt76_connac_mcu_alloc_sta_req(&dev->mt76, &mconf->mt76,
+						      &mlink->wcid,
+						      MT7996_STA_UPDATE_MAX_SIZE);
+		if (IS_ERR(skb))
+			return PTR_ERR(skb);
+		/* starec mld setup */
+		mt7996_mcu_sta_mld_setup_tlv(dev, skb, sta, add);
+		/* starec eht mld */
+		mt7996_mcu_sta_eht_mld_tlv(dev, skb, sta);
+		ret = mt76_mcu_skb_send_msg(&dev->mt76, skb,
+					    MCU_WMWA_UNI_CMD(STA_REC_UPDATE), true);
+		if (ret)
+			return ret;
+	}
+	return 0;
+}
+
 int mt7996_mcu_teardown_mld_sta(struct mt7996_dev *dev,
 				struct mt7996_bss_conf *mconf,
 				struct mt7996_link_sta *mlink)
@@ -3381,6 +3464,51 @@ int mt7996_mcu_add_dev_info(struct mt7996_phy *phy,
 				 &data, sizeof(data), true);
 }
 
+static int
+mt7996_mcu_mld_reconf(struct mt7996_dev *dev, struct ieee80211_vif *vif,
+		      u16 removed_links, u16 *removal_count)
+{
+	struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv;
+	struct mld_req_hdr hdr = { .mld_idx = 0xff };
+	struct mld_reconf_timer *rt;
+	struct sk_buff *skb;
+	struct tlv *tlv;
+	int len = sizeof(hdr) + sizeof(*rt);
+	unsigned long rem = removed_links;
+	u8 link_id;
+
+	memcpy(hdr.mld_addr, vif->addr, ETH_ALEN);
+
+	skb = mt76_mcu_msg_alloc(&dev->mt76, NULL, len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put_data(skb, &hdr, sizeof(hdr));
+
+	tlv = mt7996_mcu_add_uni_tlv(skb, UNI_CMD_MLD_RECONF_AP_REM_TIMER, sizeof(*rt));
+	rt = (struct mld_reconf_timer *)tlv;
+	rt->link_bitmap = cpu_to_le16(removed_links);
+
+	for_each_set_bit(link_id, &rem, IEEE80211_MLD_MAX_NUM_LINKS) {
+		struct ieee80211_bss_conf *conf =
+			link_conf_dereference_protected(vif, link_id);
+		struct mt7996_bss_conf *mconf =
+			mconf_dereference_protected(mvif, link_id);
+		u8 band_idx;
+		u16 to_sec;
+
+		if (!conf || !mconf)
+			continue;
+
+		band_idx = mconf->phy->mt76->band_idx;
+		to_sec = conf->beacon_int * removal_count[link_id] / 1000;
+		rt->to_sec[band_idx] = cpu_to_le16(to_sec);
+		rt->bss_idx[band_idx] = mconf->mt76.idx;
+	}
+
+	return mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_WM_UNI_CMD(MLD), true);
+}
+
 static void
 mt7996_mcu_beacon_cntdwn(struct ieee80211_bss_conf *conf, struct sk_buff *rskb,
 			 struct sk_buff *skb,
@@ -3575,6 +3703,94 @@ mt7996_mcu_beacon_cont(struct mt7996_dev *dev, struct ieee80211_bss_conf *conf,
 		mt7996_packet_log_to_host(dev, skb->data, skb->len, PKT_BIN_DEBUG_TX, 0);
 }
 
+static void
+mt7996_mcu_beacon_ml_reconf(struct mt7996_dev *dev,
+			    struct ieee80211_bss_conf *conf,
+			    struct sk_buff *rskb, struct sk_buff *skb,
+			    struct ieee80211_mutable_offsets *offs)
+{
+	struct mt7996_vif *mvif = (struct mt7996_vif *)conf->vif->drv_priv;
+	struct bss_bcn_ml_reconf_tlv *reconf;
+	struct bss_bcn_ml_reconf_offset *reconf_offs;
+	const struct element *elem, *sub;
+	struct tlv *tlv;
+	u16 removal_offs[IEEE80211_MLD_MAX_NUM_LINKS] = {};
+	u16 removal_count[IEEE80211_MLD_MAX_NUM_LINKS] = {};
+	u16 tail_offset = offs->tim_offset + offs->tim_length;
+	unsigned long removed_links = 0;
+	bool has_reconf = false;
+	u8 link_id, *beacon_tail = skb->data + tail_offset;
+
+	if (!ieee80211_vif_is_mld(conf->vif))
+		return;
+
+	/* TODO: currently manually parse reconf info directly from the IE, it
+	 * is expected to be passed from upper layer in the future.
+	 */
+	for_each_element_extid(elem, WLAN_EID_EXT_EHT_MULTI_LINK,
+			       beacon_tail, skb->len - tail_offset) {
+		if (ieee80211_mle_type_ok(elem->data + 1,
+					  IEEE80211_ML_CONTROL_TYPE_RECONF,
+					  elem->datalen - 1)) {
+			has_reconf = true;
+			break;
+		}
+	}
+
+	if (!has_reconf)
+		return;
+
+	for_each_mle_subelement(sub, elem->data + 1, elem->datalen - 1) {
+		struct ieee80211_mle_per_sta_profile *prof = (void *)sub->data;
+		u8 *pos = prof->variable;
+		u16 control;
+
+		if (sub->id != IEEE80211_MLE_SUBELEM_PER_STA_PROFILE)
+			continue;
+
+		if (!ieee80211_mle_reconf_sta_prof_size_ok(sub->data,
+							   sub->datalen))
+			return;
+
+		control = le16_to_cpu(prof->control);
+		link_id = control & IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID;
+
+		removed_links |= BIT(link_id);
+
+		if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
+			pos += 6;
+
+		if (control & IEEE80211_MLE_STA_RECONF_CONTROL_AP_REM_TIMER_PRESENT) {
+			removal_offs[link_id] = pos - skb->data;
+			removal_count[link_id] = le16_to_cpu(*(__le16 *)pos);
+		}
+	}
+
+	if (!removed_links)
+		return;
+
+	/* the first link to be removed */
+	if (conf->link_id == ffs(removed_links) - 1)
+		mt7996_mcu_mld_reconf(dev, conf->vif, removed_links, removal_count);
+
+	tlv = mt7996_mcu_add_uni_tlv(rskb, UNI_BSS_INFO_BCN_ML_RECONF,
+				     sizeof(*reconf) +
+				     sizeof(*reconf_offs) * hweight16(removed_links));
+	reconf = (struct bss_bcn_ml_reconf_tlv *)tlv;
+	reconf->reconf_count = hweight16(removed_links);
+
+	reconf_offs = (struct bss_bcn_ml_reconf_offset *)reconf->offset;
+	for_each_set_bit(link_id, &removed_links, IEEE80211_MLD_MAX_NUM_LINKS) {
+		struct mt7996_bss_conf *mconf =
+			mconf_dereference_protected(mvif, link_id);
+
+		reconf_offs->ap_removal_timer_offs =
+			cpu_to_le16(removal_offs[link_id]);
+		reconf_offs->bss_idx = mconf->mt76.idx;
+		reconf_offs++;
+	}
+}
+
 int mt7996_mcu_add_beacon(struct ieee80211_hw *hw,
 			  struct ieee80211_bss_conf *conf,
 			  struct mt7996_bss_conf *mconf, int en)
@@ -3628,6 +3844,7 @@ int mt7996_mcu_add_beacon(struct ieee80211_hw *hw,
 	mt7996_mcu_beacon_cntdwn(conf, rskb, skb, &offs);
 	mt7996_mcu_beacon_sta_prof_csa(rskb, conf, &offs);
 	mt7996_mcu_beacon_crit_update(rskb, skb, conf, mconf, &offs);
+	mt7996_mcu_beacon_ml_reconf(dev, conf, rskb, skb, &offs);
 out:
 	dev_kfree_skb(skb);
 	return mt76_mcu_skb_send_msg(&phy->dev->mt76, rskb,
diff --git a/mt7996/mcu.h b/mt7996/mcu.h
index 739e357c..7c559d2b 100644
--- a/mt7996/mcu.h
+++ b/mt7996/mcu.h
@@ -546,6 +546,20 @@ struct bss_bcn_sta_prof_cntdwn_tlv {
 	u8 pkt_content[9];
 } __packed;
 
+struct bss_bcn_ml_reconf_tlv {
+	__le16 tag;
+	__le16 len;
+	u8 reconf_count;
+	u8 rsv[3];
+	u8 offset[];
+} __packed;
+
+struct bss_bcn_ml_reconf_offset {
+	__le16 ap_removal_timer_offs;
+	u8 bss_idx;
+	u8 rsv;
+} __packed;
+
 struct bss_txcmd_tlv {
 	__le16 tag;
 	__le16 len;
@@ -594,6 +608,17 @@ struct bss_mld_tlv {
 	u8 __rsv[3];
 } __packed;
 
+struct bss_mld_link_op_tlv {
+	__le16 tag;
+	__le16 len;
+	u8 group_mld_id;
+	u8 own_mld_id;
+	u8 mac_addr[ETH_ALEN];
+	u8 remap_idx;
+	u8 link_operation;
+	u8 rsv[2];
+} __packed;
+
 struct sta_rec_ht_uni {
 	__le16 tag;
 	__le16 len;
@@ -1003,8 +1028,9 @@ enum {
 					 sizeof(struct bss_bcn_cntdwn_tlv) +	\
 					 sizeof(struct bss_bcn_mbss_tlv) +	\
 					 sizeof(struct bss_bcn_crit_update_tlv) +	\
-					 sizeof(struct bss_bcn_sta_prof_cntdwn_tlv))	\
-
+					 sizeof(struct bss_bcn_sta_prof_cntdwn_tlv) +	\
+					 sizeof(struct bss_bcn_ml_reconf_tlv) +	\
+					 3 * sizeof(struct bss_bcn_ml_reconf_offset))
 #define MT7996_MAX_BSS_OFFLOAD_SIZE	(MT7996_MAX_BEACON_SIZE +		\
 					 MT7996_BEACON_UPDATE_SIZE)
 
@@ -1105,6 +1131,65 @@ enum {
 	UNI_CMD_THERMAL_PROTECT_DUTY_CONFIG,
 };
 
+struct mld_req_hdr {
+	u8 ver;
+	u8 mld_addr[ETH_ALEN];
+	u8 mld_idx;
+	u8 flag;
+	u8 rsv[3];
+	u8 buf[];
+} __packed;
+
+struct mld_reconf_timer {
+	__le16 tag;
+	__le16 len;
+	__le16 link_bitmap;
+	__le16 to_sec[__MT_MAX_BAND]; /* timeout of reconf (second) */
+	u8 bss_idx[__MT_MAX_BAND];
+	u8 rsv;
+} __packed;
+
+struct mld_reconf_stop_link {
+	__le16 tag;
+	__le16 len;
+	__le16 link_bitmap;
+	u8 rsv[2];
+	u8 bss_idx[16];
+} __packed;
+
+enum {
+	UNI_CMD_MLD_RECONF_AP_REM_TIMER = 0x03,
+};
+
+struct mt7996_mcu_mld_event {
+	struct mt7996_mcu_rxd rxd;
+
+	/* fixed field */
+	u8 ver;
+	u8 mld_addr[ETH_ALEN];
+	u8 mld_idx;
+	u8 rsv[4];
+	/* tlv */
+	u8 buf[];
+} __packed;
+
+struct mt7996_mld_event_data {
+	u8 mld_addr[ETH_ALEN];
+	u8 *data;
+};
+
+struct mt7996_mcu_mld_ap_reconf_event {
+	__le16 tag;
+	__le16 len;
+	__le16 link_bitmap;
+	u8 bss_idx[3];
+	u8 rsv[3];
+} __packed;
+
+enum {
+	UNI_EVENT_MLD_RECONF_AP_REM_TIMER = 0x04,
+};
+
 struct tx_power_ctrl {
 	u8 _rsv[4];
 
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index 8b00b05b..6f9f82b7 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -1083,6 +1083,8 @@ int mt7996_mcu_add_rate_ctrl(struct mt7996_dev *dev,
 			     struct mt7996_bss_conf *mconf,
 			     struct ieee80211_link_sta *link_sta,
 			     struct mt7996_link_sta *mlink, bool changed);
+int mt7996_mcu_add_mld_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta, unsigned long add);
 int mt7996_set_channel(struct mt7996_phy *phy, struct cfg80211_chan_def *chandef);
 int mt7996_mcu_set_chan_info(struct mt7996_phy *phy, u16 tag, bool sta);
 int mt7996_mcu_set_tx(struct mt7996_dev *dev, struct mt7996_bss_conf *mconf);
-- 
2.18.0