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net: Fix skb_copy_expand() handling of ->csum_start 

It should only be adjusted if ip_summed == CHECKSUM_PARTIAL.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-07-22 13:27:09 -07:00
parent 00c5a9834b
commit be2b6e6235
1 changed files with 2 additions and 1 deletions
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3
net/core/skbuff.c
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@ -932,7 +932,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
copy_skb_header(n, skb); copy_skb_header(n, skb);
off = newheadroom - oldheadroom; off = newheadroom - oldheadroom;
n->csum_start += off; if (n->ip_summed == CHECKSUM_PARTIAL)
n->csum_start += off;
#ifdef NET_SKBUFF_DATA_USES_OFFSET #ifdef NET_SKBUFF_DATA_USES_OFFSET
n->transport_header += off; n->transport_header += off;
n->network_header += off; n->network_header += off;