On Thu, Jan 25, 2018 at 4:36 PM, Juergen Gross <jgross@xxxxxxxx> wrote: > Add a function to get the address of the RSDP table. Per default use a > __weak annotated function being a nop. The problem with weak functions that we can't have more than one implementation per kernel while we would like to built several code paths. I have stumbled on the similar stuff and realize that. Perhaps, one of the solution is to have an additional struct under x86_init to alternate ACPI related stuff. -- With Best Regards, Andy Shevchenko