Messages in this thread Patch in this message | | | Date | Wed, 14 Nov 2007 22:45:29 -0800 | From | Greg Kroah-Hartman <> | Subject | [patch 29/40] ide: Add ide_get_paired_drive() helper |
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-stable review patch. If anyone has any objections, please let us know.
------------------ From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
patch 1b678347121001c3c230c6eccfdf9f65c3ec1a4e in mainline.
This adds a helper to get to the "other" drive on a pair connected to a given hwif.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andrew Morton <akpm@osdl.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- include/linux/ide.h | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1437,4 +1437,11 @@ 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 */ -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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