wifi: mt76: mt7921: rely on shared poll_list field

Rely on poll_list field in mt76_wcid structure and get rid of
private copy.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7921/mac.c

@@ -84,8 +84,8 @@ static void mt7921_mac_sta_poll(struct mt7921_dev *dev)
 			break;
 		}
 		msta = list_first_entry(&sta_poll_list,
-					struct mt7921_sta, poll_list);
-		list_del_init(&msta->poll_list);
+					struct mt7921_sta, wcid.poll_list);
+		list_del_init(&msta->wcid.poll_list);
 		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 		idx = msta->wcid.idx;
@@ -281,8 +281,8 @@ mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
 	if (status->wcid) {
 		msta = container_of(status->wcid, struct mt7921_sta, wcid);
 		spin_lock_bh(&dev->mt76.sta_poll_lock);
-		if (list_empty(&msta->poll_list))
-			list_add_tail(&msta->poll_list,
+		if (list_empty(&msta->wcid.poll_list))
+			list_add_tail(&msta->wcid.poll_list,
 				      &dev->mt76.sta_poll_list);
 		spin_unlock_bh(&dev->mt76.sta_poll_lock);
 	}
@@ -568,8 +568,8 @@ void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data)
 		goto out;
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (list_empty(&msta->poll_list))
-		list_add_tail(&msta->poll_list, &dev->mt76.sta_poll_list);
+	if (list_empty(&msta->wcid.poll_list))
+		list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 out:
@@ -649,8 +649,8 @@ static void mt7921_mac_tx_free(struct mt7921_dev *dev, void *data, int len)
 
 			msta = container_of(wcid, struct mt7921_sta, wcid);
 			spin_lock_bh(&mdev->sta_poll_lock);
-			if (list_empty(&msta->poll_list))
-				list_add_tail(&msta->poll_list,
+			if (list_empty(&msta->wcid.poll_list))
+				list_add_tail(&msta->wcid.poll_list,
 					      &mdev->sta_poll_list);
 			spin_unlock_bh(&mdev->sta_poll_lock);
 			continue;

drivers/net/wireless/mediatek/mt76/mt7921/main.c

@@ -313,7 +313,7 @@ static int mt7921_add_interface(struct ieee80211_hw *hw,
 
 	idx = MT7921_WTBL_RESERVED - mvif->mt76.idx;
 
-	INIT_LIST_HEAD(&mvif->sta.poll_list);
+	INIT_LIST_HEAD(&mvif->sta.wcid.poll_list);
 	mvif->sta.wcid.idx = idx;
 	mvif->sta.wcid.phy_idx = mvif->mt76.band_idx;
 	mvif->sta.wcid.hw_key_idx = -1;
@@ -358,8 +358,8 @@ static void mt7921_remove_interface(struct ieee80211_hw *hw,
 	mt7921_mutex_release(dev);
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (!list_empty(&msta->poll_list))
-		list_del_init(&msta->poll_list);
+	if (!list_empty(&msta->wcid.poll_list))
+		list_del_init(&msta->wcid.poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 	mt76_packet_id_flush(&dev->mt76, &msta->wcid);
@@ -764,7 +764,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	if (idx < 0)
 		return -ENOSPC;
 
-	INIT_LIST_HEAD(&msta->poll_list);
+	INIT_LIST_HEAD(&msta->wcid.poll_list);
 	msta->vif = mvif;
 	msta->wcid.sta = 1;
 	msta->wcid.idx = idx;
@@ -843,8 +843,8 @@ void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 	}
 
 	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	if (!list_empty(&msta->poll_list))
-		list_del_init(&msta->poll_list);
+	if (!list_empty(&msta->wcid.poll_list))
+		list_del_init(&msta->wcid.poll_list);
 	spin_unlock_bh(&dev->mt76.sta_poll_lock);
 
 	mt76_connac_power_save_sched(&dev->mphy, &dev->pm);

drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h

@@ -150,7 +150,6 @@ struct mt7921_sta {
 
 	struct mt7921_vif *vif;
 
-	struct list_head poll_list;
 	u32 airtime_ac[8];
 
 	int ack_signal;