On 06/07/2018 03:40 AM, Riccardo Berto wrote:
> Just want to report that I can't add a wg interface of type wireguard
> with linux 4.17.0 on aarch64 (Raspberry Pi 3).
>
> Error message: `RTNETLINK answers: Operation not supported`.
>
> I'm using ArchLinuxARM. Downgrading to 4.16.x makes the issue
> dissapear. This is not high-priority so please Jason, if you're
> reading this message, move this issue further down in your debugging
> queue as I believe almost nobody is using 4.17.0 on aarch64 right now.
> Maybe they'll fix the error by themselves in the coming 4.17.x releases.

I had the same problem on a different Archlinux ARM kernel that I fixed
by adding '-fno-pic' to the ccflags-y line in Kbuild before compiling
wireguard. Try that out?

Jaron