Re: [PATCH] x86/efi-bgrt: remove the check of the version field

[Ingo Molnar]

* Icenowy Zheng <icenowy@xxxxxxxx> wrote:

> Some broken firmwares have a wrongly filled version field in BGRT table.
> (See http://wiki.osdev.org/Broken_UEFI_implementations )
> 
> As we know, these firmwares can also provide correct BGRT image, although
> the table is wrong.
> 
> After removing the check of the version field, the kernel can now extract
> the image correctly, and the information is also correct.
> 
> Tested on a Thinkpad E531 (68854UC).

What's the practical effects of the bug - what problems does a missing 
/sys/firmware/acpi/bgrt/ cause?

I.e. how does the user notice?

Thanks,

	Ingo