linux-kernel - Re: [PATCH] Remove CONFIG_PM altogether, enable power management all the time

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Message-ID: <4D52F0D0.9020609@am.sony.com>
Date:	Wed, 9 Feb 2011 11:53:52 -0800
From:	Tim Bird <tim.bird@...sony.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	"Rowand, Frank" <Frank_Rowand@...yusa.com>,
	Frank Rowand <frank.rowand@...il.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Len Brown <len.brown@...el.com>,
	Alan Stern <stern@...land.harvard.edu>,
	"linux-pm@...ts.linux-foundation.org" 
	<linux-pm@...ts.linux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	"linux-embedded@...r.kernel.org" <linux-embedded@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] Remove CONFIG_PM altogether, enable power management
 all the time

On 02/09/2011 11:25 AM, Mark Brown wrote:
> On Wed, Feb 09, 2011 at 11:00:17AM -0800, Frank Rowand wrote:
> 
>> and my understanding of this proposal was a goal to remove the ability
>> to have CONFIG_PM disabled, which results in increased memory usage
>> for some configurations.
> 
> Not really, the goal was to simplify the PM config options to ones that
> are actually useful and cut down on the number of silly combinations
> that the randconfigs turn up.  CONFIG_PM is there mostly for historical
> reasons, it doesn't really mean much by itself except as a gate to other
> options.

I'm confused.  Do you plan to retain the option to
turn off PM features completely, or not?  I thought that's
what CONFIG_PM did today.
 -- Tim

=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Network Entertainment
=============================

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