SCSI: convert 53c700 driver to use change_queue_depth API

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/scsi/53c700.c

@@ -176,6 +176,7 @@ STATIC void NCR_700_chip_setup(struct Scsi_Host *host);
 STATIC void NCR_700_chip_reset(struct Scsi_Host *host);
 STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt);
 STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt);
+static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth);
 
 STATIC struct device_attribute *NCR_700_dev_attrs[];
 
@@ -338,6 +339,7 @@ NCR_700_detect(struct scsi_host_template *tpnt,
 	tpnt->use_clustering = ENABLE_CLUSTERING;
 	tpnt->slave_configure = NCR_700_slave_configure;
 	tpnt->slave_destroy = NCR_700_slave_destroy;
+	tpnt->change_queue_depth = NCR_700_change_queue_depth;
 	
 	if(tpnt->name == NULL)
 		tpnt->name = "53c700";
@@ -2102,18 +2104,14 @@ NCR_700_slave_destroy(struct scsi_device *SDp)
 	/* to do here: deallocate memory */
 }
 
-static ssize_t
-NCR_700_store_queue_depth(struct device *dev, const char *buf, size_t count)
+static int
+NCR_700_change_queue_depth(struct scsi_device *SDp, int depth)
 {
-	int depth;
-
-	struct scsi_device *SDp = to_scsi_device(dev);
-	depth = simple_strtoul(buf, NULL, 0);
 	if(depth > NCR_700_MAX_TAGS)
-		return -EINVAL;
+		depth = NCR_700_MAX_TAGS;
 	scsi_adjust_queue_depth(SDp, MSG_ORDERED_TAG, depth);
 
-	return count;
+	return depth;
 }
 
 static ssize_t
@@ -2124,14 +2122,6 @@ NCR_700_show_active_tags(struct device *dev, char *buf)
 	return snprintf(buf, 20, "%d\n", NCR_700_get_depth(SDp));
 }
 
-static struct device_attribute NCR_700_queue_depth_attr = {
-	.attr = {
-		.name = 	"queue_depth",
-		.mode =		S_IWUSR,
-	},
-	.store = NCR_700_store_queue_depth,
-};
-
 static struct device_attribute NCR_700_active_tags_attr = {
 	.attr = {
 		.name =		"active_tags",
@@ -2141,7 +2131,6 @@ static struct device_attribute NCR_700_active_tags_attr = {
 };
 
 STATIC struct device_attribute *NCR_700_dev_attrs[] = {
-	&NCR_700_queue_depth_attr,
 	&NCR_700_active_tags_attr,
 	NULL,
 };