Signed-off-by: Bart Van Assche <bart.vanass...@sandisk.com>
Cc: Finn Thain <fth...@telegraphics.com.au>
Cc: Michael Schmitz <schmitz...@gmail.com>
---
drivers/scsi/ncr53c8xx.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 5b93ed8..b9c489a 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -4286,13 +4286,12 @@ static int ncr_queue_command (struct ncb *np, struct
scsi_cmnd *cmd)
direction = DMA_NONE;
/*
- ** If data direction is BIDIRECTIONAL, speculate FROM_DEVICE
+ ** For bidi commands, speculate FROM_DEVICE
** but prepare alternate pointers for TO_DEVICE in case
** of our speculation will be just wrong.
** SCRIPTS will swap values if needed.
*/
switch(direction) {
- case DMA_BIDIRECTIONAL:
case DMA_TO_DEVICE:
goalp = NCB_SCRIPT_PHYS (np, data_out2) + 8;
if (segments <= MAX_SCATTERL)
@@ -4301,7 +4300,7 @@ static int ncr_queue_command (struct ncb *np, struct
scsi_cmnd *cmd)
lastp = NCB_SCRIPTH_PHYS (np, hdata_out2);
lastp -= (segments - MAX_SCATTERL) * 16;
}
- if (direction != DMA_BIDIRECTIONAL)
+ if (!scsi_bidi_cmd(cmd))
break;
cp->phys.header.wgoalp = cpu_to_scr(goalp);
cp->phys.header.wlastp = cpu_to_scr(lastp);
@@ -4328,7 +4327,7 @@ static int ncr_queue_command (struct ncb *np, struct
scsi_cmnd *cmd)
cp->phys.header.lastp = cpu_to_scr(lastp);
cp->phys.header.goalp = cpu_to_scr(goalp);
- if (direction == DMA_BIDIRECTIONAL)
+ if (scsi_bidi_cmd(cmd))
cp->phys.header.savep =
cpu_to_scr(NCB_SCRIPTH_PHYS (np, data_io));
else
--
2.1.2
--
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