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authorDavid S. Miller <davem@davemloft.net>2011-01-20 22:47:32 -0800
committerDavid S. Miller <davem@davemloft.net>2011-01-20 22:47:32 -0800
commit686a2955531312dab77bb6f1e8602787d85e47d8 (patch)
tree4209f28a17bbd4ba124484d2e57a1f52f22734cd /include/linux/skbuff.h
parent212bfb9e94e86b40684076f642b089b0565455d2 (diff)
net: Add safe reverse SKB queue walkers.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index bf221d65d9ad..6e946da9d1d6 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -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)
{