Since kernel 4.15.4-1 hit stable I no longer get this error on the same machine.
If there are no more reports, you can close this bug.
> Package: src:linux
> Version: 4.14~rc3-1~exp1
> Severity: normal
> Dear Maintainer,
> After upgrading to experimental kernel 4.14-rc3, I get the following
> new errors during boot:
> [ 10.436142] kfd kfd: DID 6810 is missing in supported_devices
> [ 10.436147] kfd kfd: kgd2kfd_probe failed
> Before, on older kernels I would get:
> [ 7.434988] kfd kfd: Initialized module
> I expected some errors with the amdkfd-next pull.
> I believe this error message was introduced by this patch: