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scsi: set sc_data_direction in common code

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The data direction fiel in the SCSI command is derived only from the block
request structure.  Move setting it up into common code instead of
duplicating it in the ULDs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
Christoph Hellwig
2014-06-28 16:41:43 +02:00
parent 3868cf8ea7
commit 5158a899d8
3 changed files with 7 additions and 11 deletions
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2
drivers/scsi/sd.c
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@@ -994,14 +994,12 @@ static int sd_init_command(struct scsi_cmnd *SCpnt)
goto out;
}
SCpnt->cmnd[0] = WRITE_6;
SCpnt->sc_data_direction = DMA_TO_DEVICE;
if (blk_integrity_rq(rq))
sd_dif_prepare(rq, block, sdp->sector_size);
} else if (rq_data_dir(rq) == READ) {
SCpnt->cmnd[0] = READ_6;
SCpnt->sc_data_direction = DMA_FROM_DEVICE;
} else {
scmd_printk(KERN_ERR, SCpnt, "Unknown command %llx\n", (unsigned long long) rq->cmd_flags);
goto out;