linux-kernel - Re: [PATCH 1/3] ide: Add ide_get_paired

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Message-Id: <200710182310.13272.bzolnier@gmail.com>
Date:	Thu, 18 Oct 2007 23:10:13 +0200
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Linux IDE <linux-ide@...r.kernel.org>,
	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>,
	stable@...nel.org
Subject: Re: [PATCH 1/3] ide: Add ide_get_paired_drive() helper

On Thursday 18 October 2007, Benjamin Herrenschmidt wrote:
> This adds a helper to get to the "other" drive on a pair connected
> to a given hwif.
> 
> Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>

applied

-stable team: please include this patch series in 2.6.23.2

> ---
> 
> Note: You may want to use the 1 - select.b.unit construct instead,
> as you prefer, I just used what was there and fixed it.
> 
>  include/linux/ide.h |    7 +++++++
>  1 file changed, 7 insertions(+)
> 
> Index: linux-work/include/linux/ide.h
> ===================================================================
> --- linux-work.orig/include/linux/ide.h	2007-10-18 10:41:42.000000000 +1000
> +++ linux-work/include/linux/ide.h	2007-10-18 10:42:40.000000000 +1000
> @@ -1454,4 +1454,11 @@ static inline int hwif_to_node(ide_hwif_
>  	return dev ? pcibus_to_node(dev->bus) : -1;
>  }
>  
> +static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
> +{
> +	ide_hwif_t *hwif	= HWIF(drive);
> +
> +	return &hwif->drives[(drive->dn ^ 1) & 1];
> +}
> +
>  #endif /* _IDE_H */
-
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