Note that this patch conflicts with:
https://lkml.kernel.org/r/20210723125210.29987-7-david@xxxxxxxxxx
But nothing fundamental. Determining a single NID is similar to how I'm
handling it for ACPI:
https://lkml.kernel.org/r/20210723125210.29987-6-david@xxxxxxxxxx
Okay, got it. Thanks for the reminder.
Seems my patch is not useful after your patch.