scsi: scsi_ioctl: Remove scsi_req_init()

Merge scsi_req_init() into its only caller.

Link: https://lore.kernel.org/r/20210724072033.1284840-16-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

block/scsi_ioctl.c

@@ -817,21 +817,6 @@ int scsi_cmd_ioctl(struct request_queue *q, struct gendisk *bd_disk, fmode_t mod
 }
 EXPORT_SYMBOL(scsi_cmd_ioctl);
 
-/**
- * scsi_req_init - initialize certain fields of a scsi_request structure
- * @req: Pointer to a scsi_request structure.
- * Initializes .__cmd[], .cmd, .cmd_len and .sense_len but no other members
- * of struct scsi_request.
- */
-void scsi_req_init(struct scsi_request *req)
-{
-	memset(req->__cmd, 0, sizeof(req->__cmd));
-	req->cmd = req->__cmd;
-	req->cmd_len = BLK_MAX_CDB;
-	req->sense_len = 0;
-}
-EXPORT_SYMBOL(scsi_req_init);
-
 static int __init blk_scsi_ioctl_init(void)
 {
 	blk_set_cmd_filter_defaults(&blk_default_cmd_filter);

drivers/scsi/scsi_lib.c

@@ -1083,8 +1083,13 @@ EXPORT_SYMBOL(scsi_alloc_sgtables);
 static void scsi_initialize_rq(struct request *rq)
 {
 	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
+	struct scsi_request *req = &cmd->req;
+
+	memset(req->__cmd, 0, sizeof(req->__cmd));
+	req->cmd = req->__cmd;
+	req->cmd_len = BLK_MAX_CDB;
+	req->sense_len = 0;
 
-	scsi_req_init(&cmd->req);
 	init_rcu_head(&cmd->rcu);
 	cmd->jiffies_at_alloc = jiffies;
 	cmd->retries = 0;

include/scsi/scsi_request.h

@@ -28,6 +28,4 @@ static inline void scsi_req_free_cmd(struct scsi_request *req)
 		kfree(req->cmd);
 }
 
-void scsi_req_init(struct scsi_request *req);
-
 #endif /* _SCSI_SCSI_REQUEST_H */