From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759362AbYA0Vcu (ORCPT ); Sun, 27 Jan 2008 16:32:50 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755497AbYA0Vck (ORCPT ); Sun, 27 Jan 2008 16:32:40 -0500 Received: from einhorn.in-berlin.de ([192.109.42.8]:33318 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755238AbYA0Vcj (ORCPT ); Sun, 27 Jan 2008 16:32:39 -0500 X-Envelope-From: stefanr@s5r6.in-berlin.de Date: Sun, 27 Jan 2008 22:32:22 +0100 (CET) From: Stefan Richter Subject: [PATCH 2.6.24-git3] ieee1394: sbp2: relax SCSI DMA alignment To: linux1394-devel@lists.sourceforge.net cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: Message-ID: References: <479B80A3.5070207@s5r6.in-berlin.de> <1201373642.4387.0.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=us-ascii Content-Disposition: INLINE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Stefan Richter --- Not run-time tested yet. drivers/ieee1394/sbp2.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) Index: linux-2.6.24-git3/drivers/ieee1394/sbp2.c =================================================================== --- linux-2.6.24-git3.orig/drivers/ieee1394/sbp2.c +++ linux-2.6.24-git3/drivers/ieee1394/sbp2.c @@ -1966,11 +1966,8 @@ static int sbp2scsi_slave_alloc(struct s lu->sdev = sdev; sdev->allow_restart = 1; - /* - * Update the dma alignment (minimum alignment requirements for - * start and end of DMA transfers) to be a sector - */ - blk_queue_update_dma_alignment(sdev->request_queue, 511); + /* SBP-2 requires quadlet alignment of the data buffers. */ + blk_queue_update_dma_alignment(sdev->request_queue, 4 - 1); if (lu->workarounds & SBP2_WORKAROUND_INQUIRY_36) sdev->inquiry_len = 36; -- Stefan Richter -=====-==--- ---= ==-== http://arcgraph.de/sr/