Re: [PATCH net-next] net: report netlink extack only if set

[David Miller]

From: Willem de Bruijn <willemdebruijn.ker...@gmail.com>
Date: Sun,  5 Aug 2018 15:48:01 -0400

> From: Willem de Bruijn <will...@google.com>
> 
> Initialize extack in dev_set_mtu and report only if set.
> 
> Fixes: 7a4c53bee332 ("net: report invalid mtu value via netlink extack")
> Reported-by: syzbot <syzkal...@googlegroups.com>
> Signed-off-by: Willem de Bruijn <will...@google.com>

Someone beat you to it :-)  And that version is in net-next.

Thanks!