linux-kernel - Re: [PATCH] nouveau, ACPI: fix regression caused by b072e53

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Message-ID: <5304838B.4040500@canonical.com>
Date:	Wed, 19 Feb 2014 11:12:27 +0100
From:	Maarten Lankhorst <maarten.lankhorst@...onical.com>
To:	Jiang Liu <jiang.liu@...ux.intel.com>,
	David Airlie <airlied@...ux.ie>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Dave Airlie <airlied@...hat.com>,
	Emil Velikov <emil.l.velikov@...il.com>
CC:	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nouveau, ACPI: fix regression caused by b072e53

op 19-02-14 05:53, Jiang Liu schreef:
> On some platforms, ACPI _DSM method (nouveau_op_dsm_muid, function 0)
> has special requirements on the fourth parameter, which is different
> from ACPI specifications. So revert to the private implementation
> to check availability of _DSM functions instead of using common
> acpi_check_dsm() interface.
>
> Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
> ---
> Hi Maarten,
> 	Thanks for bisecting. Could you please help to verify whether
> this patch fixes the regression?
>
Tested-by: Maarten Lankhorst <maarten.lankhorst@...onical.com>

I was wrong about the operator precedence, seems correct after all. :-)
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