49 #define NEXT(skb) ((skb)->prev)  macro
54 	NEXT(STUB(queue)) = NULL;  in wg_prev_queue_init()
59 		offsetof(struct sk_buff, next) != offsetof(struct prev_queue, empty.next) -  in wg_prev_queue_init()
67 	WRITE_ONCE(NEXT(skb), NULL);  in __wg_prev_queue_enqueue()
68 	WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb);  in __wg_prev_queue_enqueue()
81 	struct sk_buff *tail = queue->tail, *next = smp_load_acquire(&NEXT(tail));  in wg_prev_queue_dequeue()  local
84 		if (!next)  in wg_prev_queue_dequeue()
86 		queue->tail = next;  in wg_prev_queue_dequeue()
87 		tail = next;  in wg_prev_queue_dequeue()
88 		next = smp_load_acquire(&NEXT(next));  in wg_prev_queue_dequeue()
90 	if (next) {  in wg_prev_queue_dequeue()
91 		queue->tail = next;  in wg_prev_queue_dequeue()
98 	next = smp_load_acquire(&NEXT(tail));  in wg_prev_queue_dequeue()
99 	if (next) {  in wg_prev_queue_dequeue()
100 		queue->tail = next;  in wg_prev_queue_dequeue()
107 #undef NEXT