From: Alexander Duyck <adu...@mirantis.com>
Date: Tue, 29 Mar 2016 14:55:22 -0700
> This patch should fix the issues seen with a recent fix to prevent
> tunnel-in-tunnel frames from being generated with GRO. The fix itself is
> correct for now as long as we do not add any devices that support
> NETIF_F_GSO_GRE_CSUM. When such a device is added it could have the
> potential to mess things up due to the fact that the outer transport header
> points to the outer UDP header and not the GRE header as would be expected.
>
> Fixes: fac8e0f579695 ("tunnels: Don't apply GRO to multiple layers of
> encapsulation.")
> Signed-off-by: Alexander Duyck <adu...@mirantis.com>
> ---
>
> v2: Dropped switch statements per suggestion of Tom Herbert.
Applied, thanks Alex.
