894 	struct zd_usb_tx *tx = &usb->tx;  in zd_usb_disable_tx()  local
897 	atomic_set(&tx->enabled, 0);  in zd_usb_disable_tx()
900 	usb_kill_anchored_urbs(&tx->submitted);  in zd_usb_disable_tx()
902 	spin_lock_irqsave(&tx->lock, flags);  in zd_usb_disable_tx()
903 	WARN_ON(!skb_queue_empty(&tx->submitted_skbs));  in zd_usb_disable_tx()
904 	WARN_ON(tx->submitted_urbs != 0);  in zd_usb_disable_tx()
905 	tx->submitted_urbs = 0;  in zd_usb_disable_tx()
906 	spin_unlock_irqrestore(&tx->lock, flags);  in zd_usb_disable_tx()
923 	struct zd_usb_tx *tx = &usb->tx;  in zd_usb_enable_tx()  local
925 	spin_lock_irqsave(&tx->lock, flags);  in zd_usb_enable_tx()
926 	atomic_set(&tx->enabled, 1);  in zd_usb_enable_tx()
927 	tx->submitted_urbs = 0;  in zd_usb_enable_tx()
929 	tx->stopped = 0;  in zd_usb_enable_tx()
930 	spin_unlock_irqrestore(&tx->lock, flags);  in zd_usb_enable_tx()
935 	struct zd_usb_tx *tx = &usb->tx;  in tx_dec_submitted_urbs()  local
938 	spin_lock_irqsave(&tx->lock, flags);  in tx_dec_submitted_urbs()
939 	--tx->submitted_urbs;  in tx_dec_submitted_urbs()
940 	if (tx->stopped && tx->submitted_urbs <= ZD_USB_TX_LOW) {  in tx_dec_submitted_urbs()
942 		tx->stopped = 0;  in tx_dec_submitted_urbs()
944 	spin_unlock_irqrestore(&tx->lock, flags);  in tx_dec_submitted_urbs()
949 	struct zd_usb_tx *tx = &usb->tx;  in tx_inc_submitted_urbs()  local
952 	spin_lock_irqsave(&tx->lock, flags);  in tx_inc_submitted_urbs()
953 	++tx->submitted_urbs;  in tx_inc_submitted_urbs()
954 	if (!tx->stopped && tx->submitted_urbs > ZD_USB_TX_HIGH) {  in tx_inc_submitted_urbs()
956 		tx->stopped = 1;  in tx_inc_submitted_urbs()
958 	spin_unlock_irqrestore(&tx->lock, flags);  in tx_inc_submitted_urbs()
974 	struct zd_usb_tx *tx;  in tx_urb_complete()  local
983 	tx = &usb->tx;  in tx_urb_complete()
1001 	skb_unlink(skb, &usb->tx.submitted_skbs);  in tx_urb_complete()
1007 	usb_anchor_urb(urb, &tx->submitted);  in tx_urb_complete()
1034 	struct zd_usb_tx *tx = &usb->tx;  in zd_usb_tx()  local
1036 	if (!atomic_read(&tx->enabled)) {  in zd_usb_tx()
1051 	skb_queue_tail(&tx->submitted_skbs, skb);  in zd_usb_tx()
1052 	usb_anchor_urb(urb, &tx->submitted);  in zd_usb_tx()
1058 		skb_unlink(skb, &tx->submitted_skbs);  in zd_usb_tx()
1071 	struct zd_usb_tx *tx = &usb->tx;  in zd_tx_timeout()  local
1072 	struct sk_buff_head *q = &tx->submitted_skbs;  in zd_tx_timeout()
1096 		container_of(work, struct zd_usb, tx.watchdog_work.work);  in zd_tx_watchdog_handler()
1097 	struct zd_usb_tx *tx = &usb->tx;  in zd_tx_watchdog_handler()  local
1099 	if (!atomic_read(&tx->enabled) || !tx->watchdog_enabled)  in zd_tx_watchdog_handler()
1112 	queue_delayed_work(zd_workqueue, &tx->watchdog_work,  in zd_tx_watchdog_handler()
1118 	struct zd_usb_tx *tx = &usb->tx;  in zd_tx_watchdog_enable()  local
1120 	if (!tx->watchdog_enabled) {  in zd_tx_watchdog_enable()
1122 		queue_delayed_work(zd_workqueue, &tx->watchdog_work,  in zd_tx_watchdog_enable()
1124 		tx->watchdog_enabled = 1;  in zd_tx_watchdog_enable()
1130 	struct zd_usb_tx *tx = &usb->tx;  in zd_tx_watchdog_disable()  local
1132 	if (tx->watchdog_enabled) {  in zd_tx_watchdog_disable()
1134 		tx->watchdog_enabled = 0;  in zd_tx_watchdog_disable()
1135 		cancel_delayed_work_sync(&tx->watchdog_work);  in zd_tx_watchdog_disable()
1198 	struct zd_usb_tx *tx = &usb->tx;  in init_usb_tx()  local
1200 	spin_lock_init(&tx->lock);  in init_usb_tx()
1201 	atomic_set(&tx->enabled, 0);  in init_usb_tx()
1202 	tx->stopped = 0;  in init_usb_tx()
1203 	skb_queue_head_init(&tx->submitted_skbs);  in init_usb_tx()
1204 	init_usb_anchor(&tx->submitted);  in init_usb_tx()
1205 	tx->submitted_urbs = 0;  in init_usb_tx()
1206 	tx->watchdog_enabled = 0;  in init_usb_tx()
1207 	INIT_DELAYED_WORK(&tx->watchdog_work, zd_tx_watchdog_handler);  in init_usb_tx()