]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
igb/igbvf: Don't use lco_csum to compute IPv4 checksum
authorAlexander Duyck <alexander.h.duyck@intel.com>
Mon, 28 Nov 2016 15:42:23 +0000 (10:42 -0500)
committerDavid S. Miller <davem@davemloft.net>
Thu, 1 Dec 2016 20:41:35 +0000 (15:41 -0500)
commit516165a1e2f22e512a976f8dafd76a22310ccfd9
tree42eaa01494355fa7f66bb3ac59d57cda6153e9da
parentfadf3a28054404f075c05d9ca8ebd4b4ce9ebc0f
igb/igbvf: Don't use lco_csum to compute IPv4 checksum

In the case of IPIP and SIT tunnel frames the outer transport header
offset is actually set to the same offset as the inner transport header.
This results in the lco_csum call not doing any checksum computation over
the inner IPv4/v6 header data.

In order to account for that I am updating the code so that we determine
the location to start the checksum ourselves based on the location of the
IPv4 header and the length.

Fixes: e10715d3e961 ("igb/igbvf: Add support for GSO partial")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/intel/igb/igb_main.c
drivers/net/ethernet/intel/igbvf/netdev.c