tree c69385d148fb52f0f8f659f8261497ab428d820d
parent bf63ac73b3e132e6bf0c8798aba7b277c3316e19
author Eric Dumazet <edumazet@google.com> 1400561794 -0700
committer David S. Miller <davem@davemloft.net> 1400707127 -0400

ipv6: gro: fix CHECKSUM_COMPLETE support

When GRE support was added in linux-3.14, CHECKSUM_COMPLETE handling
broke on GRE+IPv6 because we did not update/use the appropriate csum :

GRO layer is supposed to use/update NAPI_GRO_CB(skb)->csum instead of
skb->csum

Tested using a GRE tunnel and IPv6 traffic. GRO aggregation now happens
at the first level (ethernet device) instead of being done in gre
tunnel. Native IPv6+TCP is still properly aggregated.

Fixes: bf5a755f5e918 ("net-gre-gro: Add GRE support to the GRO stack")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>