Commit da5ef6e5 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller
Browse files

skb: Add skb_peek_next helper 



Signed-off-by: default avatarPavel Emelyanov <xemul@parallels.com>
Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3f518bf7

include/linux/skbuff.h

+18 −0
Original line number Diff line number Diff line
@@ -876,6 +876,24 @@ static inline struct sk_buff *skb_peek(const struct sk_buff_head *list_) 
	return list;

}



/**

 *	skb_peek_next - peek skb following the given one from a queue

 *	@skb: skb to start from

 *	@list_: list to peek at

 *

 *	Returns %NULL when the end of the list is met or a pointer to the

 *	next element. The reference count is not incremented and the

 *	reference is therefore volatile. Use with caution.

 */

static inline struct sk_buff *skb_peek_next(struct sk_buff *skb,

		const struct sk_buff_head *list_)

{

	struct sk_buff *next = skb->next;

	if (next == (struct sk_buff *)list_)

		next = NULL;

	return next;

}



/**

 *	skb_peek_tail - peek at the tail of an &sk_buff_head

 *	@list_: list to peek at