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 <[EMAIL PROTECTED]>
Index: csum/net/ipv4/udp.c
===================================================================
--- csum.orig/net/ipv4/udp.c 2005-09-06 20:38:48.000000000 -0700
+++ csum/net/ipv4/udp.c 2005-09-06 20:40:11.000000000 -0700
@@ -1140,7 +1140,7 @@
if (ulen > len || ulen < sizeof(*uh))
goto short_packet;
- if (pskb_trim(skb, ulen))
+ if (pskb_trim_rcsum(skb, ulen))
goto short_packet;
if (udp_checksum_init(skb, uh, ulen, saddr, daddr) < 0)
-
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