mt76: mt76u: rename stat_wq in wq

Rename usb stat_wq in wq in order to be reused not just for gathering hw
tx statistics

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>

mt76.h

@@ -400,7 +400,7 @@ struct mt76_usb {
 	u16 data_len;
 
 	struct tasklet_struct rx_tasklet;
-	struct workqueue_struct *stat_wq;
+	struct workqueue_struct *wq;
 	struct work_struct stat_work;
 
 	u8 out_ep[__MT_EP_OUT_MAX];

usb.c

@@ -852,7 +852,7 @@ static void mt76u_tx_tasklet(unsigned long data)
 
 		if (dev->drv->tx_status_data &&
 		    !test_and_set_bit(MT76_READING_STATS, &dev->phy.state))
-			queue_work(dev->usb.stat_wq, &dev->usb.stat_work);
+			queue_work(dev->usb.wq, &dev->usb.stat_work);
 		if (wake)
 			ieee80211_wake_queue(dev->hw, i);
 	}
@@ -878,7 +878,7 @@ static void mt76u_tx_status_data(struct work_struct *work)
 	}
 
 	if (count && test_bit(MT76_STATE_RUNNING, &dev->phy.state))
-		queue_work(usb->stat_wq, &usb->stat_work);
+		queue_work(usb->wq, &usb->stat_work);
 	else
 		clear_bit(MT76_READING_STATS, &dev->phy.state);
 }
@@ -1132,9 +1132,9 @@ static const struct mt76_queue_ops usb_queue_ops = {
 
 void mt76u_deinit(struct mt76_dev *dev)
 {
-	if (dev->usb.stat_wq) {
-		destroy_workqueue(dev->usb.stat_wq);
-		dev->usb.stat_wq = NULL;
+	if (dev->usb.wq) {
+		destroy_workqueue(dev->usb.wq);
+		dev->usb.wq = NULL;
 	}
 }
 EXPORT_SYMBOL_GPL(mt76u_deinit);
@@ -1160,8 +1160,8 @@ int mt76u_init(struct mt76_dev *dev,
 	tasklet_init(&dev->tx_tasklet, mt76u_tx_tasklet, (unsigned long)dev);
 	INIT_WORK(&usb->stat_work, mt76u_tx_status_data);
 
-	usb->stat_wq = alloc_workqueue("mt76u", WQ_UNBOUND, 0);
-	if (!usb->stat_wq)
+	usb->wq = alloc_workqueue("mt76u", WQ_UNBOUND, 0);
+	if (!usb->wq)
 		return -ENOMEM;
 
 	usb->data_len = usb_maxpacket(udev, usb_sndctrlpipe(udev, 0), 1);