linux-kernel - Re: [PATCH] ppc: fix #ifdef-s in mediabay driver

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Date:	Wed, 23 Jan 2008 10:59:54 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: [PATCH] ppc: fix #ifdef-s in mediabay driver


On Wed, 2008-01-23 at 00:12 +0100, Bartlomiej Zolnierkiewicz wrote:
> * Replace incorrect CONFIG_BLK_DEV_IDE #ifdef in
>   check_media_bay() by CONFIG_MAC_FLOPPY one.
> 
> * Replace incorrect CONFIG_BLK_DEV_IDE #ifdef-s by
>   CONFIG_BLK_DEV_IDE_PMAC ones.
> 
> * check_media_bay() is used only by drivers/block/swim3.c
>   so make this function available only if CONFIG_MAC_FLOPPY
>   is defined.
> 
> * check_media_bay_by_base() and media_bay_set_ide_infos()
>   are used only by drivers/ide/ppc/pmac.c so so make these
>   functions available only if CONFIG_MAC_FLOPPY is defined.
> 
> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> ---
> Ben, IMO this patch is safe for 2.6.24 (assuming that it builds fine :),
> otherwise I would like to ask for permission to merge it through IDE
> tree since I have other pending IDE patches depending on this one.

I'd rather avoid touching 2.6.24 unless it actually fixes a bug or
regression...

I'm tempted to actually remove all ifdef's ... if you have a media-bay,
then there are about 99% chances it contains an IDE device, with the
remaining percent being split with putting a floppy or a battery in. I
doubt anybody will care building a kernel without the support for these
and with the mediabay support, and still want to save a handful of bytes
in that driver.

Ben.


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