linux-kernel - Re: [RFC][PATCH 1/2] PM: Split up sysdev_[suspend|resume] from device_power

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Message-ID: <20090305165430.GC1379@ucw.cz>
Date:	Thu, 5 Mar 2009 17:54:30 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Len Brown <lenb@...nel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [RFC][PATCH 1/2] PM: Split up sysdev_[suspend|resume] from
	device_power_[down|up]

Hi!

> Move the sysdev_suspend/resume from the callee to the callers, with
> no real change in semantics, so that we can rework the disabling of
> interrupts during suspend/hibernation.
> 
> This is based on an earlier patch from Linus.

> Index: linux-2.6/drivers/base/power/main.c
> ===================================================================
> --- linux-2.6.orig/drivers/base/power/main.c
> +++ linux-2.6/drivers/base/power/main.c
> @@ -333,7 +333,6 @@ static void dpm_power_up(pm_message_t st
>   */
>  void device_power_up(pm_message_t state)
>  {
> -	sysdev_resume();
>  	dpm_power_up(state);
>  }

And at this point we can rename dpm_power_up -> device_power_up. Good.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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