PJ Waskiewicz wrote: > Buggy BIOS, that above value resolves to CX02. In fact, it *should* be > 49. This is very much a bug in the ACPI arena. Ok, so back to this patch in question, my concern with upgrading: dev_err(dev, "unable to retrieve _UID\n"); ...to say "potentially buggy BIOS", is that same charge could be levied against all of the dev_warn() and dev_err() instances in drivers/cxl/acpi.c. So, it's not clear to me that cxl_acpi driver failures need to be more explicit. Otherwise, pretty much any ACPI hiccup message in the kernel would be candidate for claiming "BIOS is busted".