56 	queue->head = queue->tail = STUB(queue);  in wg_prev_queue_init()
82 	struct sk_buff *tail = queue->tail, *next = smp_load_acquire(&NEXT(tail));  in wg_prev_queue_dequeue()  local
84 	if (tail == STUB(queue)) {  in wg_prev_queue_dequeue()
87 		queue->tail = next;  in wg_prev_queue_dequeue()
88 		tail = next;  in wg_prev_queue_dequeue()
92 		queue->tail = next;  in wg_prev_queue_dequeue()
94 		return tail;  in wg_prev_queue_dequeue()
96 	if (tail != READ_ONCE(queue->head))  in wg_prev_queue_dequeue()
99 	next = smp_load_acquire(&NEXT(tail));  in wg_prev_queue_dequeue()
101 		queue->tail = next;  in wg_prev_queue_dequeue()
103 		return tail;  in wg_prev_queue_dequeue()