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

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Message-ID: <20160824073013.GC13137@dhcp-128-65.nay.redhat.com>
Date:   Wed, 24 Aug 2016 15:30:13 +0800
From:   Dave Young <dyoung@...hat.com>
To:     Icenowy Zheng <icenowy@...c.xyz>
Cc:     Matt Fleming <matt@...eblueprint.co.uk>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Josh Triplett <josh@...htriplett.org>,
        Josh Boyer <jwboyer@...hat.com>,
        Andy Lutomirski <luto@...capital.net>
Subject: Re: [PATCH] x86/efi-bgrt: remove the check of the version field

On 08/22/16 at 04:49pm, Icenowy Zheng wrote:
> 
> 
> 22.08.2016, 15:28, "Dave Young" <dyoung@...hat.com>:
> > On 08/18/16 at 09:41pm, Matt Fleming wrote:
> >>  On Wed, 17 Aug, at 01:44:13PM, Dave Young wrote:
> >>  >
> >>  > Could we add some quirk for these broken hardware instead of changing
> >>  > the normal code?
> >>
> >>  I'd prefer not to do that if possible. Due to the way that the BIOS
> >>  ecosystem works, this kind of broken firmware spreads across the
> >>  industry, appearing in newer versions of products from the same vendor
> >>  and even products from different vendors.
> >>
> >>  Continuously updating a quirks table as additional broken platforms
> >>  are discovered simply does not scale.
> >
> > Ok, I assumed that they are limited like one point in the web url
> > http://wiki.osdev.org/Broken_UEFI_implementations
> 
> At least I think all Thinkpads suffer from this.

Icenowy, sorry for late reply, I missed it. I'm not sure other version, but my
T440s does work well.

> 
> >
> > But I arm probably wrong like you said. Please ignore the comment then.
> >

Thanks
Dave