diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 2aca79e..ea4272c 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -343,7 +343,7 @@
 	}
 
 	strcpy(dev_info->segment_name, local_buf);
-	strlcpy(dev_info->dev.bus_id, local_buf, BUS_ID_SIZE);
+	dev_set_name(&dev_info->dev, local_buf);
 	dev_info->dev.release = dcssblk_release_segment;
 	INIT_LIST_HEAD(&dev_info->lh);
 
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index 036e650..42173cc 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -724,8 +724,7 @@
 
 	dev = kzalloc(sizeof(struct device), GFP_KERNEL);
 	if (dev) {
-		snprintf(dev->bus_id, BUS_ID_SIZE, "%s",
-			 priv->internal_name);
+		dev_set_name(dev, priv->internal_name);
 		dev->bus = &iucv_bus;
 		dev->parent = iucv_root;
 		dev->driver = &vmlogrdr_driver;
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index e17b462..3ac2c20 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -269,8 +269,7 @@
 		goto error;
 	}
 
-	snprintf (gdev->dev.bus_id, BUS_ID_SIZE, "%s",
-			dev_name(&gdev->cdev[0]->dev));
+	dev_set_name(&gdev->dev, "%s", dev_name(&gdev->cdev[0]->dev));
 
 	rc = device_add(&gdev->dev);
 	if (rc)
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index f1216cf..1246f61 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -393,8 +393,7 @@
 	chp->state = 1;
 	chp->dev.parent = &channel_subsystems[chpid.cssid]->device;
 	chp->dev.release = chp_release;
-	snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp%x.%02x", chpid.cssid,
-		 chpid.id);
+	dev_set_name(&chp->dev, "chp%x.%02x", chpid.cssid, chpid.id);
 
 	/* Obtain channel path description and fill it in. */
 	ret = chsc_determine_base_channel_path_desc(chpid, &chp->desc);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 1261e1a..76bbb1e 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -698,7 +698,7 @@
 		return -ENOMEM;
 	css->pseudo_subchannel->dev.parent = &css->device;
 	css->pseudo_subchannel->dev.release = css_subchannel_release;
-	sprintf(css->pseudo_subchannel->dev.bus_id, "defunct");
+	dev_set_name(&css->pseudo_subchannel->dev, "defunct");
 	ret = cio_create_sch_lock(css->pseudo_subchannel);
 	if (ret) {
 		kfree(css->pseudo_subchannel);
@@ -707,7 +707,7 @@
 	mutex_init(&css->mutex);
 	css->valid = 1;
 	css->cssid = nr;
-	sprintf(css->device.bus_id, "css%x", nr);
+	dev_set_name(&css->device, "css%x", nr);
 	css->device.release = channel_subsystem_release;
 	tod_high = (u32) (get_clock() >> 32);
 	css_generate_pgid(css, tod_high);
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 62b6b55..326db1e 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -892,8 +892,8 @@
 
 		ap_dev->device.bus = &ap_bus_type;
 		ap_dev->device.parent = ap_root_device;
-		snprintf(ap_dev->device.bus_id, BUS_ID_SIZE, "card%02x",
-			 AP_QID_DEVICE(ap_dev->qid));
+		dev_set_name(&ap_dev->device, "card%02x",
+			     AP_QID_DEVICE(ap_dev->qid));
 		ap_dev->device.release = ap_device_release;
 		rc = device_register(&ap_dev->device);
 		if (rc) {
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 9242b5a..0fea51e 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -1724,7 +1724,7 @@
 	IUCV_DBF_TEXT(trace, 3, __func__);
 
 	if (dev) {
-		snprintf(dev->bus_id, BUS_ID_SIZE, "net%s", ndev->name);
+		dev_set_name(dev, "net%s", ndev->name);
 		dev->bus = &iucv_bus;
 		dev->parent = iucv_root;
 		/*
diff --git a/drivers/s390/s390_rdev.c b/drivers/s390/s390_rdev.c
index 3c7145d..64371c0 100644
--- a/drivers/s390/s390_rdev.c
+++ b/drivers/s390/s390_rdev.c
@@ -30,7 +30,7 @@
 	dev = kzalloc(sizeof(struct device), GFP_KERNEL);
 	if (!dev)
 		return ERR_PTR(-ENOMEM);
-	strncpy(dev->bus_id, name, min(strlen(name), (size_t)BUS_ID_SIZE));
+	dev_set_name(dev, name);
 	dev->release = s390_root_dev_release;
 	ret = device_register(dev);
 	if (ret) {
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 24255e4..3b56220 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -283,8 +283,8 @@
 	unit->port = port;
 	unit->fcp_lun = fcp_lun;
 
-	snprintf(unit->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx",
-		 (unsigned long long) fcp_lun);
+	dev_set_name(&unit->sysfs_device, "0x%016llx",
+		     (unsigned long long) fcp_lun);
 	unit->sysfs_device.parent = &port->sysfs_device;
 	unit->sysfs_device.release = zfcp_sysfs_unit_release;
 	dev_set_drvdata(&unit->sysfs_device, unit);
@@ -610,8 +610,7 @@
 	atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
 	atomic_set(&port->refcount, 0);
 
-	snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx",
-		 (unsigned long long) wwpn);
+	dev_set_name(&port->sysfs_device, "0x%016llx", wwpn);
 	port->sysfs_device.parent = &adapter->ccw_device->dev;
 
 	port->sysfs_device.release = zfcp_sysfs_port_release;