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;
 }