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

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Date:	Mon, 16 Mar 2015 21:01:40 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Al Stone <ahs3@...hat.com>
Cc:	linux-acpi@...r.kernel.org, rjw@...ysocki.net, lenb@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ACPI: Adjust the return value of _REV on x86

On Mon, Mar 16, 2015 at 02:34:24PM -0600, Al Stone wrote:

> More a philosophical question -- the patch seems fine to me, personally, and
> for arm64, we have to have >= 5 anyway -- but would it make sense to just not
> acknowledge _REV and deprecate it from the kernel and the spec?  I'm already
> trying to get rid of _OSI because of such silliness and force requests to _OSC
> where they should be (granted, it will take some time...).

A bunch of systems verify that _REV returns >= 2 and change EC behaviour 
based on that, so killing it in the near term is unfortunately probably 
not an option.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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