libata passthru: always enforce correct DEV bit
Always enforce correct DEV bit since we know which drive the command
is targeted. SAT demands to ignore the DEV bit, too.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 8c6a2b2..884f52f 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2595,12 +2595,10 @@
tf->device = cdb[8];
tf->command = cdb[9];
}
- /*
- * If slave is possible, enforce correct master/slave bit
- */
- if (qc->ap->flags & ATA_FLAG_SLAVE_POSS)
- tf->device = qc->dev->devno ?
- tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1;
+
+ /* enforce correct master/slave bit */
+ tf->device = dev->devno ?
+ tf->device | ATA_DEV1 : tf->device & ~ATA_DEV1;
/* sanity check for pio multi commands */
if ((cdb[1] & 0xe0) && !is_multi_taskfile(tf))