-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Benjamin Herrenschmidt <[EMAIL PROTECTED]>

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 <[EMAIL PROTECTED]>
Cc: Andrew Morton <[EMAIL PROTECTED]>
Acked-by: Sergei Shtylyov <[EMAIL PROTECTED]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>

---
 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 */

-- 
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