>> What do you think?
>
> Passing -1 is an error, it doesn't make sense to try and be
> helpful to buggy userland.
Here is commit I actually change/fix:
commit 9c7dafbfab15 ("net: Allow to create links with given ifindex")
In this change done the opposite: check for ifm->ifi_index moved to
register_netdevice() from rtnl_newlink().
Let me understand finally: why do I need to reverse and move check
for dev->ifindex from register_netdevice() to rtnl_newlink()? That
will partially revert commit I note above.
--
Thanks, Serhey
