appletalk: Use frag list abstraction interfaces.
Signed-off-by: David S. Miller <davem@davemloft.net>
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a5bd8a13e9
Коммит
c32ba3f9b8
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@ -939,6 +939,7 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
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int len, unsigned long sum)
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{
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int start = skb_headlen(skb);
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struct sk_buff *frag_iter;
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int i, copy;
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/* checksum stuff in header space */
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@ -977,26 +978,22 @@ static unsigned long atalk_sum_skb(const struct sk_buff *skb, int offset,
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start = end;
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}
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if (skb_shinfo(skb)->frag_list) {
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struct sk_buff *list = skb_shinfo(skb)->frag_list;
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skb_walk_frags(skb, frag_iter) {
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int end;
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for (; list; list = list->next) {
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int end;
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WARN_ON(start > offset + len);
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WARN_ON(start > offset + len);
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end = start + list->len;
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if ((copy = end - offset) > 0) {
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if (copy > len)
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copy = len;
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sum = atalk_sum_skb(list, offset - start,
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copy, sum);
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if ((len -= copy) == 0)
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return sum;
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offset += copy;
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}
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start = end;
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end = start + frag_iter->len;
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if ((copy = end - offset) > 0) {
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if (copy > len)
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copy = len;
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sum = atalk_sum_skb(frag_iter, offset - start,
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copy, sum);
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if ((len -= copy) == 0)
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return sum;
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offset += copy;
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}
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start = end;
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}
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BUG_ON(len > 0);
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