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firewire: fw-sbp2: relax SCSI DMA alignment
authorStefan Richter <stefanr@s5r6.in-berlin.de>
Sun, 27 Jan 2008 21:31:27 +0000 (22:31 +0100)
committerStefan Richter <stefanr@s5r6.in-berlin.de>
Fri, 18 Apr 2008 15:55:32 +0000 (17:55 +0200)
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
drivers/firewire/fw-sbp2.c patch | blob | blame | history

diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
index c7aba5cff5d28b759d0b7cf4653e322feab276b0..ea62e825a3b629362f3041fb063973b927b9b19d 100644 (file)
--- a/drivers/firewire/fw-sbp2.c
+++ b/drivers/firewire/fw-sbp2.c
@@ -1518,11 +1518,8 @@ static int sbp2_scsi_slave_alloc(struct scsi_device *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->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36)
                sdev->inquiry_len = 36;