diff --git a/[refs] b/[refs]
index 10b10f773051..7701e1ab41aa 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 00c5a9834b476a138158fb17d576da751727a9f1
+refs/heads/master: be2b6e62357dd7ee56bdcb05e54002afb4830292
diff --git a/trunk/net/core/skbuff.c b/trunk/net/core/skbuff.c
index c699159b3ede..ce88293a34e2 100644
--- a/trunk/net/core/skbuff.c
+++ b/trunk/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;