4 files changed, 24 insertions, 15 deletions

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 14ad2a785a34..a7f3f0c84db7 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1259,6 +1259,26 @@ static void scsi_generic_done(struct scsi_cmnd *cmd)
 	scsi_io_completion(cmd, cmd->bufflen, 0);
 }
 
+void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd)
+{
+	struct request *req = cmd->request;
+
+	BUG_ON(sizeof(req->cmd) > sizeof(cmd->cmnd));
+	memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
+	cmd->cmd_len = req->cmd_len;
+	if (!req->data_len)
+		cmd->sc_data_direction = DMA_NONE;
+	else if (rq_data_dir(req) == WRITE)
+		cmd->sc_data_direction = DMA_TO_DEVICE;
+	else
+		cmd->sc_data_direction = DMA_FROM_DEVICE;
+	
+	cmd->transfersize = req->data_len;
+	cmd->allowed = req->retries;
+	cmd->timeout_per_command = req->timeout;
+}
+EXPORT_SYMBOL_GPL(scsi_setup_blk_pc_cmnd);
+
 static int scsi_prep_fn(struct request_queue *q, struct request *req)
 {
 	struct scsi_device *sdev = q->queuedata;
@@ -1394,18 +1414,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
 				goto kill;
 			}
 		} else {
-			memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
-			cmd->cmd_len = req->cmd_len;
-			if (rq_data_dir(req) == WRITE)
-				cmd->sc_data_direction = DMA_TO_DEVICE;
-			else if (req->data_len)
-				cmd->sc_data_direction = DMA_FROM_DEVICE;
-			else
-				cmd->sc_data_direction = DMA_NONE;
-			
-			cmd->transfersize = req->data_len;
-			cmd->allowed = req->retries;
-			cmd->timeout_per_command = req->timeout;
+			scsi_setup_blk_pc_cmnd(cmd);
 			cmd->done = scsi_generic_done;
 		}
 	}
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 9d893f085015..3d3ad7d1b779 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -245,7 +245,7 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 	 * SG_IO from block layer already setup, just copy cdb basically
 	 */
 	if (blk_pc_request(rq)) {
-		scsi_setup_blk_pc_cmnd(SCpnt, SD_PASSTHROUGH_RETRIES);
+		scsi_setup_blk_pc_cmnd(SCpnt);
 		if (rq->timeout)
 			timeout = rq->timeout;
 
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 7e7398d563cc..a4d9be7c6874 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -320,7 +320,7 @@ static int sr_init_command(struct scsi_cmnd * SCpnt)
 	 * these are already setup, just copy cdb basically
 	 */
 	if (SCpnt->request->flags & REQ_BLOCK_PC) {
-		scsi_setup_blk_pc_cmnd(SCpnt, MAX_RETRIES);
+		scsi_setup_blk_pc_cmnd(SCpnt);
 
 		if (SCpnt->timeout_per_command)
 			timeout = SCpnt->timeout_per_command;
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 894ad53be04b..c4aade8f5345 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4198,7 +4198,7 @@ static int st_init_command(struct scsi_cmnd *SCpnt)
 	if (!(SCpnt->request->flags & REQ_BLOCK_PC))
 		return 0;
 
-	scsi_setup_blk_pc_cmnd(SCpnt, 0);
+	scsi_setup_blk_pc_cmnd(SCpnt);
 	SCpnt->done = st_intr;
 	return 1;
 }