mpt2sas: simplify ->change_queue_depth

Merge two functions, and remove overly verbose debugging output that pokes
into mid-layer internal structures.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>

drivers/scsi/mpt2sas/mpt2sas_scsih.c

@@ -1179,15 +1179,14 @@ _scsih_build_scatter_gather(struct MPT2SAS_ADAPTER *ioc,
 }
 
 /**
- * _scsih_adjust_queue_depth - setting device queue depth
+ * _scsih_change_queue_depth - setting device queue depth
  * @sdev: scsi device struct
  * @qdepth: requested queue depth
  *
- *
- * Returns nothing
+ * Returns queue depth.
  */
-static void
-_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
+static int
+_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
 {
 	struct Scsi_Host *shost = sdev->host;
 	int max_depth;
@@ -1217,34 +1216,11 @@ _scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
 	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
 
  not_sata:
-
 	if (!sdev->tagged_supported)
 		max_depth = 1;
 	if (qdepth > max_depth)
 		qdepth = max_depth;
-	scsi_change_queue_depth(sdev, qdepth);
-}
-
-/**
- * _scsih_change_queue_depth - setting device queue depth
- * @sdev: scsi device struct
- * @qdepth: requested queue depth
- *
- * Returns queue depth.
- */
-static int
-_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth)
-{
-	_scsih_adjust_queue_depth(sdev, qdepth);
-
-	if (sdev->inquiry_len > 7)
-		sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), "
-		"simple(%d), scsi_level(%d), cmd_que(%d)\n",
-		sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
-		sdev->scsi_level,
-		(sdev->inquiry[7] & 2) >> 1);
-
-	return sdev->queue_depth;
+	return scsi_change_queue_depth(sdev, qdepth);
 }
 
 /**