gre: Call gso_make_checksum
authorTom Herbert <therbert@google.com>
Thu, 5 Jun 2014 00:20:23 +0000 (17:20 -0700)
committerDavid S. Miller <davem@davemloft.net>
Thu, 5 Jun 2014 05:46:38 +0000 (22:46 -0700)
Call gso_make_checksum. This should have the benefit of using a
checksum that may have been previously computed for the packet.

This also adds NETIF_F_GSO_GRE_CSUM to differentiate devices that
offload GRE GSO with and without the GRE checksum offloaed.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

No differences found