Proper way to disable hibernate for a platform

[Thomas Glanzmann <thomas@glanzmann.de>]

Hallo,
arm based macs do not support hibernation at the moment, sometimes they
crash, sometimes they try to stop the cpu, can't and abort the attempt.
What is the porper way to tell hibernation code that suspend is not
available on that platform?

Looking at the code in kernel/power/hibernate.c it appears that
hibernation_available is the right place to do it:

bool hibernation_available(void)
{
        return nohibernate == 0 &&
                !security_locked_down(LOCKDOWN_HIBERNATION) &&
                !secretmem_active() && !cxl_mem_active();
}

Or is there a better way? How would a platform agnostic interface best look
like, something allong the lines:

dmi_check_system(hibernate_blacklist)

Or ist there a better way?

Cheers,
	Thomas