On Wed, Mar 10, 2021 at 10:41:18AM -0600, Pierre-Louis Bossart wrote:

> would this work?

> if (!IS_ENABLED(CONFIG_DMI))
>     return 0;

Build time dependencies aren't going to help anything, arm64 (and to my
understanding some future x86 systems, LynxPoint IIRC) supports both DT
and ACPI and so you have kernels built with support for both.