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xfrm: Use frag list abstraction interfaces.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2009-06-09 00:22:47 -07:00
parent 1b003be39e
commit d4fd3bc101
1 changed files with 17 additions and 20 deletions
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37
net/xfrm/xfrm_algo.c
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@ -696,8 +696,9 @@ int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
{
int start = skb_headlen(skb);
int i, copy = start - offset;
int err;
struct sk_buff *frag_iter;
struct scatterlist sg;
int err;
/* Checksum header. */
if (copy > 0) {
@ -742,28 +743,24 @@ int skb_icv_walk(const struct sk_buff *skb, struct hash_desc *desc,
start = end;
}
if (skb_shinfo(skb)->frag_list) {
struct sk_buff *list = skb_shinfo(skb)->frag_list;
skb_walk_frags(skb, frag_iter) {
int end;
for (; list; list = list->next) {
int end;
WARN_ON(start > offset + len);
WARN_ON(start > offset + len);
end = start + list->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
err = skb_icv_walk(list, desc, offset-start,
copy, icv_update);
if (unlikely(err))
return err;
if ((len -= copy) == 0)
return 0;
offset += copy;
}
start = end;
end = start + frag_iter->len;
if ((copy = end - offset) > 0) {
if (copy > len)
copy = len;
err = skb_icv_walk(frag_iter, desc, offset-start,
copy, icv_update);
if (unlikely(err))
return err;
if ((len -= copy) == 0)
return 0;
offset += copy;
}
start = end;
}
BUG_ON(len);
return 0;