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Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/scsi_lib.c33
-rw-r--r--drivers/scsi/sd.c2
-rw-r--r--drivers/scsi/sr.c2
-rw-r--r--drivers/scsi/st.c2
4 files changed, 24 insertions, 15 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 14ad2a785a3..a7f3f0c84db 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 9d893f08501..3d3ad7d1b77 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 7e7398d563c..a4d9be7c687 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 894ad53be04..c4aade8f534 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;
}