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[IPV4] udp: trim forgets about CHECKSUM_HW
A UDP packet may contain extra data that needs to be trimmed off. But when doing so, UDP forgets to fixup the skb checksum if CHECKSUM_HW is being used. I think this explains the case of a NFS receive using skge driver causing 'udp hw checksum failures' when interacting with a crufty settop box. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1141,7 +1141,7 @@ int udp_rcv(struct sk_buff *skb)
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if (ulen > len || ulen < sizeof(*uh))
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goto short_packet;
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if (pskb_trim(skb, ulen))
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if (pskb_trim_rcsum(skb, ulen))
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goto short_packet;
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if (udp_checksum_init(skb, uh, ulen, saddr, daddr) < 0)
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