__skb_queue_splice
__skb_queue_splice(list, (struct sk_buff *) head, head->next);
__skb_queue_splice(list, (struct sk_buff *) head, head->next);
__skb_queue_splice(list, head->prev, (struct sk_buff *) head);
__skb_queue_splice(list, head->prev, (struct sk_buff *) head);