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Commit 686a2955 authored by David S. Miller's avatar David S. Miller
Browse files

net: Add safe reverse SKB queue walkers. 



Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 212bfb9e

include/linux/skbuff.h

+9 −0
Original line number Diff line number Diff line
@@ -1801,6 +1801,15 @@ static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len) 
		     prefetch(skb->prev), (skb != (struct sk_buff *)(queue));	\

		     skb = skb->prev)



#define skb_queue_reverse_walk_safe(queue, skb, tmp)				\

		for (skb = (queue)->prev, tmp = skb->prev;			\

		     skb != (struct sk_buff *)(queue);				\

		     skb = tmp, tmp = skb->prev)



#define skb_queue_reverse_walk_from_safe(queue, skb, tmp)			\

		for (tmp = skb->prev;						\

		     skb != (struct sk_buff *)(queue);				\

		     skb = tmp, tmp = skb->prev)



static inline bool skb_has_frag_list(const struct sk_buff *skb)

{