linux-kernel - Re: [PATCH] ACPI: Adjust the return value of

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Message-ID: <5511C73D.5020006@dell.com>
Date:	Tue, 24 Mar 2015 15:21:17 -0500
From:	Mario Limonciello <mario_limonciello@...l.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Matt Fleming <matt@...eblueprint.co.uk>
CC:	Jason Ekstrand <jason@...kstrand.net>,
	LKML <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Bard Liao <bardliao@...ltek.com>,
	Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"lenb@...nel.org" <lenb@...nel.org>
Subject: Re: [PATCH] ACPI: Adjust the return value of _REV on x86


On 03/24/2015 03:02 PM, Rafael J. Wysocki wrote:
> On Tuesday, March 24, 2015 03:24:12 PM Matt Fleming wrote:
> While I agree in general, one comment.
>
> We haven't decided about the patch yet.  We may decide to bump up the _REV
> to 6 when ACPI 6 is out instead.
I'd be happy with this too.
> That said the whole using of _REV to special case Linux is broken by design
> and should be stopped immediately.  Especially when it is done by comparing
> the return value of _REV to a specific number (like 5 or 3).
>
> Rafael
>
Yes, it's been made clear to me that this shouldn't be used in the future.  I've shared that feedback to my BIOS architecture team.
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