mt76x0: remove unused stat work_queue

Remove unused tx_status workqueue since now tx feedbacks are
processed by mt76-usb layer
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/init.c

@@ -511,12 +511,6 @@ struct mt76x0_dev *mt76x0_alloc_device(struct device *pdev)
 	spin_lock_init(&dev->con_mon_lock);
 	atomic_set(&dev->avg_ampdu_len, 1);
 
-	dev->stat_wq = alloc_workqueue("mt76x0", WQ_UNBOUND, 0);
-	if (!dev->stat_wq) {
-		ieee80211_free_hw(mdev->hw);
-		return NULL;
-	}
-
 	return dev;
 }
 
@@ -715,7 +709,6 @@ int mt76x0_register_device(struct mt76x0_dev *dev)
 	dev->mt76.chandef.chan = &dev->mt76.sband_2g.sband.channels[0];
 
 	INIT_DELAYED_WORK(&dev->mac_work, mt76x0_mac_work);
-	INIT_DELAYED_WORK(&dev->stat_work, mt76x0_tx_stat);
 
 	ret = ieee80211_register_hw(hw);
 	if (ret)

drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h

@@ -132,7 +132,6 @@ struct mt76x0_dev {
 	struct delayed_work cal_work;
 	struct delayed_work mac_work;
 
-	struct workqueue_struct *stat_wq;
 	struct delayed_work stat_work;
 
 	spinlock_t mac_lock;
@@ -237,7 +236,6 @@ void mt76x0_mac_set_ampdu_factor(struct mt76x0_dev *dev);
 void mt76x0_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
 		struct sk_buff *skb);
 void mt76x0_tx_status(struct mt76x0_dev *dev, struct sk_buff *skb);
-void mt76x0_tx_stat(struct work_struct *work);
 
 void mt76x0_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
 			 struct sk_buff *skb);

drivers/net/wireless/mediatek/mt76/mt76x0/tx.c

@@ -126,33 +126,3 @@ void mt76x0_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
 	mt76_rx(&dev->mt76, q, skb);
 }
 
-void mt76x0_tx_stat(struct work_struct *work)
-{
-	struct mt76x0_dev *dev = container_of(work, struct mt76x0_dev,
-					       stat_work.work);
-	struct mt76x02_tx_status stat;
-	unsigned long flags;
-	int cleaned = 0;
-	u8 update = 1;
-
-	while (!test_bit(MT76_REMOVED, &dev->mt76.state)) {
-		if (!mt76x02_mac_load_tx_status(&dev->mt76, &stat))
-			break;
-
-		mt76x02_send_tx_status(&dev->mt76, &stat, &update);
-
-		cleaned++;
-	}
-	trace_mt76x0_tx_status_cleaned(&dev->mt76, cleaned);
-
-	spin_lock_irqsave(&dev->tx_lock, flags);
-	if (cleaned)
-		queue_delayed_work(dev->stat_wq, &dev->stat_work,
-				   msecs_to_jiffies(10));
-	else if (test_and_clear_bit(MT76_MORE_STATS, &dev->mt76.state))
-		queue_delayed_work(dev->stat_wq, &dev->stat_work,
-				   msecs_to_jiffies(20));
-	else
-		clear_bit(MT76_READING_STATS, &dev->mt76.state);
-	spin_unlock_irqrestore(&dev->tx_lock, flags);
-}

drivers/net/wireless/mediatek/mt76/mt76x0/usb.c

@@ -107,7 +107,6 @@ static int mt76x0_probe(struct usb_interface *usb_intf,
 	usb_set_intfdata(usb_intf, NULL);
 	usb_put_dev(interface_to_usbdev(usb_intf));
 
-	destroy_workqueue(dev->stat_wq);
 	ieee80211_free_hw(dev->mt76.hw);
 	return ret;
 }
@@ -126,7 +125,6 @@ static void mt76x0_disconnect(struct usb_interface *usb_intf)
 	usb_set_intfdata(usb_intf, NULL);
 	usb_put_dev(interface_to_usbdev(usb_intf));
 
-	destroy_workqueue(dev->stat_wq);
 	ieee80211_free_hw(dev->mt76.hw);
 }