Date: Sun, 27 Jan 2008 22:31:27 +0100 (CET) From: Stefan Richter Subject: firewire: fw-sbp2: relax SCSI DMA alignment Signed-off-by: Stefan Richter --- Not run-time tested yet. drivers/firewire/fw-sbp2.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) Index: linux-2.6.25-rc6/drivers/firewire/fw-sbp2.c =================================================================== --- linux-2.6.25-rc6.orig/drivers/firewire/fw-sbp2.c +++ linux-2.6.25-rc6/drivers/firewire/fw-sbp2.c @@ -1519,11 +1519,8 @@ static int sbp2_scsi_slave_alloc(struct 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->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36) sdev->inquiry_len = 36;