linux-kernel - Re: [PATCH 1/3] libata: add missing PM callbacks

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Date:	Tue, 06 Mar 2007 17:13:31 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Pavel Machek <pavel@....cz>
CC:	Jeff Garzik <jeff@...zik.org>, linux-ide@...r.kernel.org,
	Alan <alan@...rguk.ukuu.org.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] libata: add missing PM callbacks

Pavel Machek wrote:
> Much complexity for little gain. Who is running _without_ CONFIG_PM
> these days?

Embedded people, I guess.  The problem here is that if we are gonna
support !CONFIG_PM configuration and try to reduce the kernel/module
images size for such case, we end up sprinkling #ifdef's all over huge
number of device drivers.

If we determine to drop !CONFIG_PM configuration, I'm happy with that
too but we need to determine something here.  Alternatives...

1. drop !CONFIG_PM configuration
2. continue to sprinkle #ifdef's over device drivers
3. find out prettier way to mark PM functions

-- 
tejun
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