static inline struct sk_buff *slot_dequeue_head(struct sfq_slot *slot)
{
	struct sk_buff *skb = slot->skblist_next;

	slot->skblist_next = skb->next;
	skb->next->prev = (struct sk_buff *)slot;
	skb->next = skb->prev = NULL;
	return skb;
}
static inline struct sk_buff *slot_dequeue_head(struct sfq_slot *slot)
{
	struct sk_buff *skb = slot->skblist_next;

	slot->skblist_next = skb->next;
	skb->next->prev = (struct sk_buff *)slot;
	skb->next = skb->prev = NULL;
	return skb;
}