IB: convert struct class_device to struct device

This converts the main ib_device to use struct device instead of struct
class_device as class_device is going away.

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

5 files changed, 154 insertions, 148 deletions

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 5a4b2e65534..95756551cf7 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -427,17 +427,17 @@ static struct kobj_type port_type = {
 	.default_attrs = port_default_attrs
 };
 
-static void ib_device_release(struct class_device *cdev)
+static void ib_device_release(struct device *device)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 
 	kfree(dev);
 }
 
-static int ib_device_uevent(struct class_device *cdev,
+static int ib_device_uevent(struct device *device,
 			    struct kobj_uevent_env *env)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 
 	if (add_uevent_var(env, "NAME=%s", dev->name))
 		return -ENOMEM;
@@ -567,9 +567,10 @@ err_put:
 	return ret;
 }
 
-static ssize_t show_node_type(struct class_device *cdev, char *buf)
+static ssize_t show_node_type(struct device *device,
+			      struct device_attribute *attr, char *buf)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 
 	if (!ibdev_is_alive(dev))
 		return -ENODEV;
@@ -583,9 +584,10 @@ static ssize_t show_node_type(struct class_device *cdev, char *buf)
 	}
 }
 
-static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf)
+static ssize_t show_sys_image_guid(struct device *device,
+				   struct device_attribute *dev_attr, char *buf)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 	struct ib_device_attr attr;
 	ssize_t ret;
 
@@ -603,9 +605,10 @@ static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf)
 		       be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3]));
 }
 
-static ssize_t show_node_guid(struct class_device *cdev, char *buf)
+static ssize_t show_node_guid(struct device *device,
+			      struct device_attribute *attr, char *buf)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 
 	if (!ibdev_is_alive(dev))
 		return -ENODEV;
@@ -617,17 +620,19 @@ static ssize_t show_node_guid(struct class_device *cdev, char *buf)
 		       be16_to_cpu(((__be16 *) &dev->node_guid)[3]));
 }
 
-static ssize_t show_node_desc(struct class_device *cdev, char *buf)
+static ssize_t show_node_desc(struct device *device,
+			      struct device_attribute *attr, char *buf)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 
 	return sprintf(buf, "%.64s\n", dev->node_desc);
 }
 
-static ssize_t set_node_desc(struct class_device *cdev, const char *buf,
-			      size_t count)
+static ssize_t set_node_desc(struct device *device,
+			     struct device_attribute *attr,
+			     const char *buf, size_t count)
 {
-	struct ib_device *dev = container_of(cdev, struct ib_device, class_dev);
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
 	struct ib_device_modify desc = {};
 	int ret;
 
@@ -642,44 +647,43 @@ static ssize_t set_node_desc(struct class_device *cdev, const char *buf,
 	return count;
 }
 
-static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
-static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
-static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
-static CLASS_DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc,
-			 set_node_desc);
-
-static struct class_device_attribute *ib_class_attributes[] = {
-	&class_device_attr_node_type,
-	&class_device_attr_sys_image_guid,
-	&class_device_attr_node_guid,
-	&class_device_attr_node_desc
+static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
+static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
+static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
+static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
+
+static struct device_attribute *ib_class_attributes[] = {
+	&dev_attr_node_type,
+	&dev_attr_sys_image_guid,
+	&dev_attr_node_guid,
+	&dev_attr_node_desc
 };
 
 static struct class ib_class = {
 	.name    = "infiniband",
-	.release = ib_device_release,
-	.uevent = ib_device_uevent,
+	.dev_release = ib_device_release,
+	.dev_uevent = ib_device_uevent,
 };
 
 int ib_device_register_sysfs(struct ib_device *device)
 {
-	struct class_device *class_dev = &device->class_dev;
+	struct device *class_dev = &device->dev;
 	int ret;
 	int i;
 
 	class_dev->class      = &ib_class;
-	class_dev->class_data = device;
-	class_dev->dev	      = device->dma_device;
-	strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE);
+	class_dev->driver_data = device;
+	class_dev->parent     = device->dma_device;
+	strlcpy(class_dev->bus_id, device->name, BUS_ID_SIZE);
 
 	INIT_LIST_HEAD(&device->port_list);
 
-	ret = class_device_register(class_dev);
+	ret = device_register(class_dev);
 	if (ret)
 		goto err;
 
 	for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) {
-		ret = class_device_create_file(class_dev, ib_class_attributes[i]);
+		ret = device_create_file(class_dev, ib_class_attributes[i]);
 		if (ret)
 			goto err_unregister;
 	}
@@ -723,7 +727,7 @@ err_put:
 	kobject_put(&class_dev->kobj);
 
 err_unregister:
-	class_device_unregister(class_dev);
+	device_unregister(class_dev);
 
 err:
 	return ret;
@@ -744,7 +748,7 @@ void ib_device_unregister_sysfs(struct ib_device *device)
 	}
 
 	kobject_put(device->ports_parent);
-	class_device_unregister(&device->class_dev);
+	device_unregister(&device->dev);
 }
 
 int ib_sysfs_setup(void)
diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c
index 4291ab42a5b..d7a6881b571 100644
--- a/drivers/infiniband/core/ucm.c
+++ b/drivers/infiniband/core/ucm.c
@@ -58,8 +58,8 @@ MODULE_LICENSE("Dual BSD/GPL");
 
 struct ib_ucm_device {
 	int			devnum;
-	struct cdev		dev;
-	struct class_device	class_dev;
+	struct cdev		cdev;
+	struct device		dev;
 	struct ib_device	*ib_dev;
 };
 
@@ -1171,7 +1171,7 @@ static int ib_ucm_open(struct inode *inode, struct file *filp)
 
 	filp->private_data = file;
 	file->filp = filp;
-	file->device = container_of(inode->i_cdev, struct ib_ucm_device, dev);
+	file->device = container_of(inode->i_cdev, struct ib_ucm_device, cdev);
 
 	return 0;
 }
@@ -1202,14 +1202,14 @@ static int ib_ucm_close(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static void ucm_release_class_dev(struct class_device *class_dev)
+static void ib_ucm_release_dev(struct device *dev)
 {
-	struct ib_ucm_device *dev;
+	struct ib_ucm_device *ucm_dev;
 
-	dev = container_of(class_dev, struct ib_ucm_device, class_dev);
-	cdev_del(&dev->dev);
-	clear_bit(dev->devnum, dev_map);
-	kfree(dev);
+	ucm_dev = container_of(dev, struct ib_ucm_device, dev);
+	cdev_del(&ucm_dev->cdev);
+	clear_bit(ucm_dev->devnum, dev_map);
+	kfree(ucm_dev);
 }
 
 static const struct file_operations ucm_fops = {
@@ -1220,14 +1220,15 @@ static const struct file_operations ucm_fops = {
 	.poll    = ib_ucm_poll,
 };
 
-static ssize_t show_ibdev(struct class_device *class_dev, char *buf)
+static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr,
+			  char *buf)
 {
-	struct ib_ucm_device *dev;
+	struct ib_ucm_device *ucm_dev;
 
-	dev = container_of(class_dev, struct ib_ucm_device, class_dev);
-	return sprintf(buf, "%s\n", dev->ib_dev->name);
+	ucm_dev = container_of(dev, struct ib_ucm_device, dev);
+	return sprintf(buf, "%s\n", ucm_dev->ib_dev->name);
 }
-static CLASS_DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
+static DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
 
 static void ib_ucm_add_one(struct ib_device *device)
 {
@@ -1249,32 +1250,31 @@ static void ib_ucm_add_one(struct ib_device *device)
 
 	set_bit(ucm_dev->devnum, dev_map);
 
-	cdev_init(&ucm_dev->dev, &ucm_fops);
-	ucm_dev->dev.owner = THIS_MODULE;
-	kobject_set_name(&ucm_dev->dev.kobj, "ucm%d", ucm_dev->devnum);
-	if (cdev_add(&ucm_dev->dev, IB_UCM_BASE_DEV + ucm_dev->devnum, 1))
+	cdev_init(&ucm_dev->cdev, &ucm_fops);
+	ucm_dev->cdev.owner = THIS_MODULE;
+	kobject_set_name(&ucm_dev->cdev.kobj, "ucm%d", ucm_dev->devnum);
+	if (cdev_add(&ucm_dev->cdev, IB_UCM_BASE_DEV + ucm_dev->devnum, 1))
 		goto err;
 
-	ucm_dev->class_dev.class = &cm_class;
-	ucm_dev->class_dev.dev = device->dma_device;
-	ucm_dev->class_dev.devt = ucm_dev->dev.dev;
-	ucm_dev->class_dev.release = ucm_release_class_dev;
-	snprintf(ucm_dev->class_dev.class_id, BUS_ID_SIZE, "ucm%d",
+	ucm_dev->dev.class = &cm_class;
+	ucm_dev->dev.parent = device->dma_device;
+	ucm_dev->dev.devt = ucm_dev->cdev.dev;
+	ucm_dev->dev.release = ib_ucm_release_dev;
+	snprintf(ucm_dev->dev.bus_id, BUS_ID_SIZE, "ucm%d",
 		 ucm_dev->devnum);
-	if (class_device_register(&ucm_dev->class_dev))
+	if (device_register(&ucm_dev->dev))
 		goto err_cdev;
 
-	if (class_device_create_file(&ucm_dev->class_dev,
-				     &class_device_attr_ibdev))
-		goto err_class;
+	if (device_create_file(&ucm_dev->dev, &dev_attr_ibdev))
+		goto err_dev;
 
 	ib_set_client_data(device, &ucm_client, ucm_dev);
 	return;
 
-err_class:
-	class_device_unregister(&ucm_dev->class_dev);
+err_dev:
+	device_unregister(&ucm_dev->dev);
 err_cdev:
-	cdev_del(&ucm_dev->dev);
+	cdev_del(&ucm_dev->cdev);
 	clear_bit(ucm_dev->devnum, dev_map);
 err:
 	kfree(ucm_dev);
@@ -1288,7 +1288,7 @@ static void ib_ucm_remove_one(struct ib_device *device)
 	if (!ucm_dev)
 		return;
 
-	class_device_unregister(&ucm_dev->class_dev);
+	device_unregister(&ucm_dev->dev);
 }
 
 static ssize_t show_abi_version(struct class *class, char *buf)
diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c
index 4e915104ac4..9a9d3446c6e 100644
--- a/drivers/infiniband/core/user_mad.c
+++ b/drivers/infiniband/core/user_mad.c
@@ -88,11 +88,11 @@ enum {
  */
 
 struct ib_umad_port {
-	struct cdev           *dev;
-	struct class_device   *class_dev;
+	struct cdev           *cdev;
+	struct device	      *dev;
 
-	struct cdev           *sm_dev;
-	struct class_device   *sm_class_dev;
+	struct cdev           *sm_cdev;
+	struct device	      *sm_dev;
 	struct semaphore       sm_sem;
 
 	struct mutex	       file_mutex;
@@ -948,27 +948,29 @@ static struct ib_client umad_client = {
 	.remove = ib_umad_remove_one
 };
 
-static ssize_t show_ibdev(struct class_device *class_dev, char *buf)
+static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr,
+			  char *buf)
 {
-	struct ib_umad_port *port = class_get_devdata(class_dev);
+	struct ib_umad_port *port = dev_get_drvdata(dev);
 
 	if (!port)
 		return -ENODEV;
 
 	return sprintf(buf, "%s\n", port->ib_dev->name);
 }
-static CLASS_DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
+static DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
 
-static ssize_t show_port(struct class_device *class_dev, char *buf)
+static ssize_t show_port(struct device *dev, struct device_attribute *attr,
+			 char *buf)
 {
-	struct ib_umad_port *port = class_get_devdata(class_dev);
+	struct ib_umad_port *port = dev_get_drvdata(dev);
 
 	if (!port)
 		return -ENODEV;
 
 	return sprintf(buf, "%d\n", port->port_num);
 }
-static CLASS_DEVICE_ATTR(port, S_IRUGO, show_port, NULL);
+static DEVICE_ATTR(port, S_IRUGO, show_port, NULL);
 
 static ssize_t show_abi_version(struct class *class, char *buf)
 {
@@ -994,48 +996,47 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
 	mutex_init(&port->file_mutex);
 	INIT_LIST_HEAD(&port->file_list);
 
-	port->dev = cdev_alloc();
-	if (!port->dev)
+	port->cdev = cdev_alloc();
+	if (!port->cdev)
 		return -1;
-	port->dev->owner = THIS_MODULE;
-	port->dev->ops   = &umad_fops;
-	kobject_set_name(&port->dev->kobj, "umad%d", port->dev_num);
-	if (cdev_add(port->dev, base_dev + port->dev_num, 1))
+	port->cdev->owner = THIS_MODULE;
+	port->cdev->ops   = &umad_fops;
+	kobject_set_name(&port->cdev->kobj, "umad%d", port->dev_num);
+	if (cdev_add(port->cdev, base_dev + port->dev_num, 1))
 		goto err_cdev;
 
-	port->class_dev = class_device_create(umad_class, NULL, port->dev->dev,
-					      device->dma_device,
-					      "umad%d", port->dev_num);
-	if (IS_ERR(port->class_dev))
+	port->dev = device_create(umad_class, device->dma_device,
+				  port->cdev->dev, "umad%d", port->dev_num);
+	if (IS_ERR(port->dev))
 		goto err_cdev;
 
-	if (class_device_create_file(port->class_dev, &class_device_attr_ibdev))
-		goto err_class;
-	if (class_device_create_file(port->class_dev, &class_device_attr_port))
-		goto err_class;
-
-	port->sm_dev = cdev_alloc();
-	if (!port->sm_dev)
-		goto err_class;
-	port->sm_dev->owner = THIS_MODULE;
-	port->sm_dev->ops   = &umad_sm_fops;
-	kobject_set_name(&port->sm_dev->kobj, "issm%d", port->dev_num);
-	if (cdev_add(port->sm_dev, base_dev + port->dev_num + IB_UMAD_MAX_PORTS, 1))
+	if (device_create_file(port->dev, &dev_attr_ibdev))
+		goto err_dev;
+	if (device_create_file(port->dev, &dev_attr_port))
+		goto err_dev;
+
+	port->sm_cdev = cdev_alloc();
+	if (!port->sm_cdev)
+		goto err_dev;
+	port->sm_cdev->owner = THIS_MODULE;
+	port->sm_cdev->ops   = &umad_sm_fops;
+	kobject_set_name(&port->sm_cdev->kobj, "issm%d", port->dev_num);
+	if (cdev_add(port->sm_cdev, base_dev + port->dev_num + IB_UMAD_MAX_PORTS, 1))
 		goto err_sm_cdev;
 
-	port->sm_class_dev = class_device_create(umad_class, NULL, port->sm_dev->dev,
-						 device->dma_device,
-						 "issm%d", port->dev_num);
-	if (IS_ERR(port->sm_class_dev))
+	port->sm_dev = device_create(umad_class, device->dma_device,
+				     port->sm_cdev->dev,
+				     "issm%d", port->dev_num);
+	if (IS_ERR(port->sm_dev))
 		goto err_sm_cdev;
 
-	class_set_devdata(port->class_dev,    port);
-	class_set_devdata(port->sm_class_dev, port);
+	dev_set_drvdata(port->dev,    port);
+	dev_set_drvdata(port->sm_dev, port);
 
-	if (class_device_create_file(port->sm_class_dev, &class_device_attr_ibdev))
-		goto err_sm_class;
-	if (class_device_create_file(port->sm_class_dev, &class_device_attr_port))
-		goto err_sm_class;
+	if (device_create_file(port->sm_dev, &dev_attr_ibdev))
+		goto err_sm_dev;
+	if (device_create_file(port->sm_dev, &dev_attr_port))
+		goto err_sm_dev;
 
 	spin_lock(&port_lock);
 	umad_port[port->dev_num] = port;
@@ -1043,17 +1044,17 @@ static int ib_umad_init_port(struct ib_device *device, int port_num,
 
 	return 0;
 
-err_sm_class:
-	class_device_destroy(umad_class, port->sm_dev->dev);
+err_sm_dev:
+	device_destroy(umad_class, port->sm_cdev->dev);
 
 err_sm_cdev:
-	cdev_del(port->sm_dev);
+	cdev_del(port->sm_cdev);
 
-err_class:
-	class_device_destroy(umad_class, port->dev->dev);
+err_dev:
+	device_destroy(umad_class, port->cdev->dev);
 
 err_cdev:
-	cdev_del(port->dev);
+	cdev_del(port->cdev);
 	clear_bit(port->dev_num, dev_map);
 
 	return -1;
@@ -1065,14 +1066,14 @@ static void ib_umad_kill_port(struct ib_umad_port *port)
 	int already_dead;
 	int id;
 
-	class_set_devdata(port->class_dev,    NULL);
-	class_set_devdata(port->sm_class_dev, NULL);
+	dev_set_drvdata(port->dev,    NULL);
+	dev_set_drvdata(port->sm_dev, NULL);
 
-	class_device_destroy(umad_class, port->dev->dev);
-	class_device_destroy(umad_class, port->sm_dev->dev);
+	device_destroy(umad_class, port->cdev->dev);
+	device_destroy(umad_class, port->sm_cdev->dev);
 
-	cdev_del(port->dev);
-	cdev_del(port->sm_dev);
+	cdev_del(port->cdev);
+	cdev_del(port->sm_cdev);
 
 	spin_lock(&port_lock);
 	umad_port[port->dev_num] = NULL;
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 2cad8b4b529..376a57ce1b4 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -73,8 +73,8 @@ struct ib_uverbs_device {
 	struct kref				ref;
 	struct completion			comp;
 	int					devnum;
-	struct cdev			       *dev;
-	struct class_device		       *class_dev;
+	struct cdev			       *cdev;
+	struct device			       *dev;
 	struct ib_device		       *ib_dev;
 	int					num_comp_vectors;
 };
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index f49f94653a9..cc1afa28c18 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -690,27 +690,29 @@ static struct ib_client uverbs_client = {
 	.remove = ib_uverbs_remove_one
 };
 
-static ssize_t show_ibdev(struct class_device *class_dev, char *buf)
+static ssize_t show_ibdev(struct device *device, struct device_attribute *attr,
+			  char *buf)
 {
-	struct ib_uverbs_device *dev = class_get_devdata(class_dev);
+	struct ib_uverbs_device *dev = dev_get_drvdata(device);
 
 	if (!dev)
 		return -ENODEV;
 
 	return sprintf(buf, "%s\n", dev->ib_dev->name);
 }
-static CLASS_DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
+static DEVICE_ATTR(ibdev, S_IRUGO, show_ibdev, NULL);
 
-static ssize_t show_dev_abi_version(struct class_device *class_dev, char *buf)
+static ssize_t show_dev_abi_version(struct device *device,
+				    struct device_attribute *attr, char *buf)
 {
-	struct ib_uverbs_device *dev = class_get_devdata(class_dev);
+	struct ib_uverbs_device *dev = dev_get_drvdata(device);
 
 	if (!dev)
 		return -ENODEV;
 
 	return sprintf(buf, "%d\n", dev->ib_dev->uverbs_abi_ver);
 }
-static CLASS_DEVICE_ATTR(abi_version, S_IRUGO, show_dev_abi_version, NULL);
+static DEVICE_ATTR(abi_version, S_IRUGO, show_dev_abi_version, NULL);
 
 static ssize_t show_abi_version(struct class *class, char *buf)
 {
@@ -744,27 +746,26 @@ static void ib_uverbs_add_one(struct ib_device *device)
 	uverbs_dev->ib_dev           = device;
 	uverbs_dev->num_comp_vectors = device->num_comp_vectors;
 
-	uverbs_dev->dev = cdev_alloc();
-	if (!uverbs_dev->dev)
+	uverbs_dev->cdev = cdev_alloc();
+	if (!uverbs_dev->cdev)
 		goto err;
-	uverbs_dev->dev->owner = THIS_MODULE;
-	uverbs_dev->dev->ops = device->mmap ? &uverbs_mmap_fops : &uverbs_fops;
-	kobject_set_name(&uverbs_dev->dev->kobj, "uverbs%d", uverbs_dev->devnum);
-	if (cdev_add(uverbs_dev->dev, IB_UVERBS_BASE_DEV + uverbs_dev->devnum, 1))
+	uverbs_dev->cdev->owner = THIS_MODULE;
+	uverbs_dev->cdev->ops = device->mmap ? &uverbs_mmap_fops : &uverbs_fops;
+	kobject_set_name(&uverbs_dev->cdev->kobj, "uverbs%d", uverbs_dev->devnum);
+	if (cdev_add(uverbs_dev->cdev, IB_UVERBS_BASE_DEV + uverbs_dev->devnum, 1))
 		goto err_cdev;
 
-	uverbs_dev->class_dev = class_device_create(uverbs_class, NULL,
-						    uverbs_dev->dev->dev,
-						    device->dma_device,
-						    "uverbs%d", uverbs_dev->devnum);
-	if (IS_ERR(uverbs_dev->class_dev))
+	uverbs_dev->dev = device_create(uverbs_class, device->dma_device,
+					uverbs_dev->cdev->dev,
+					"uverbs%d", uverbs_dev->devnum);
+	if (IS_ERR(uverbs_dev->dev))
 		goto err_cdev;
 
-	class_set_devdata(uverbs_dev->class_dev, uverbs_dev);
+	dev_set_drvdata(uverbs_dev->dev, uverbs_dev);
 
-	if (class_device_create_file(uverbs_dev->class_dev, &class_device_attr_ibdev))
+	if (device_create_file(uverbs_dev->dev, &dev_attr_ibdev))
 		goto err_class;
-	if (class_device_create_file(uverbs_dev->class_dev, &class_device_attr_abi_version))
+	if (device_create_file(uverbs_dev->dev, &dev_attr_abi_version))
 		goto err_class;
 
 	spin_lock(&map_lock);
@@ -776,10 +777,10 @@ static void ib_uverbs_add_one(struct ib_device *device)
 	return;
 
 err_class:
-	class_device_destroy(uverbs_class, uverbs_dev->dev->dev);
+	device_destroy(uverbs_class, uverbs_dev->cdev->dev);
 
 err_cdev:
-	cdev_del(uverbs_dev->dev);
+	cdev_del(uverbs_dev->cdev);
 	clear_bit(uverbs_dev->devnum, dev_map);
 
 err:
@@ -796,9 +797,9 @@ static void ib_uverbs_remove_one(struct ib_device *device)
 	if (!uverbs_dev)
 		return;
 
-	class_set_devdata(uverbs_dev->class_dev, NULL);
-	class_device_destroy(uverbs_class, uverbs_dev->dev->dev);
-	cdev_del(uverbs_dev->dev);
+	dev_set_drvdata(uverbs_dev->dev, NULL);
+	device_destroy(uverbs_class, uverbs_dev->cdev->dev);
+	cdev_del(uverbs_dev->cdev);
 
 	spin_lock(&map_lock);
 	dev_table[uverbs_dev->devnum] = NULL;