Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933486AbXKOHFO (ORCPT ); Thu, 15 Nov 2007 02:05:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932595AbXKOGr5 (ORCPT ); Thu, 15 Nov 2007 01:47:57 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:58159 "EHLO pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932589AbXKOGrz (ORCPT ); Thu, 15 Nov 2007 01:47:55 -0500 Date: Wed, 14 Nov 2007 22:45:29 -0800 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Benjamin Herrenschmidt , Andrew Morton , Sergei Shtylyov , Bartlomiej Zolnierkiewicz Subject: [patch 29/40] ide: Add ide_get_paired_drive() helper Message-ID: <20071115064529.GD19218@kroah.com> References: <20071115062710.885284510@mini.kroah.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline; filename="ide-add-ide_get_paired_drive-helper.patch" In-Reply-To: <20071115064302.GA19218@kroah.com> User-Agent: Mutt/1.5.16 (2007-06-09) X-Bad-Reply: References and In-Reply-To but no 'Re:' in Subject. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1231 Lines: 42 -stable review patch. If anyone has any objections, please let us know. ------------------ From: Benjamin Herrenschmidt 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 Cc: Andrew Morton Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Greg Kroah-Hartman --- 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/