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authorDavid S. Miller <davem@davemloft.net>2010-07-22 20:27:09 (GMT)
committerDavid S. Miller <davem@davemloft.net>2010-07-22 20:27:09 (GMT)
commitbe2b6e62357dd7ee56bdcb05e54002afb4830292 (patch)
tree7a166ad319bad5756a49beb060b91234a3de5510 /net
parent00c5a9834b476a138158fb17d576da751727a9f1 (diff)
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>
Diffstat (limited to 'net')
-rw-r--r--net/core/skbuff.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index c699159..ce88293 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -932,7 +932,8 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
copy_skb_header(n, skb);
off = newheadroom - oldheadroom;
- n->csum_start += off;
+ if (n->ip_summed == CHECKSUM_PARTIAL)
+ n->csum_start += off;
#ifdef NET_SKBUFF_DATA_USES_OFFSET
n->transport_header += off;
n->network_header += off;

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