Hi,

There are three methods in the network stack which start with
#ifndef I_WISH_WORLD_WERE_PERFECT.

These methods are:
ipip_err() in net/ipv4/ipip.c
ipgre_err() in net/ipv4/ip_gre.c
ipip6_err() in net/ipv6/sit.c

When building the kernel with -DI_WISH_WORLD_WERE_PERFECT we have
various compilation
errors, mostly due to the fact that the corresponding code was not
updated recently.

(As we all know, indeed the world is not perfect, unluckily...)

This patch fixes these errors and enables building the kernel
successfully with -DI_WISH_WORLD_WERE_PERFECT.

(Note : I am not fully sure about correctness of len = skb->len, which I added;
feedback on this point is welcomed).


Regards,
Rami Rosen


Signed-off-by: Rami Rosen <ramirose@gmail.com>