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 5a4b2e65534b..95756551cf7c 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 4291ab42a5b9..d7a6881b571d 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 4e915104ac4c..9a9d3446c6ed 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 2cad8b4b5292..376a57ce1b40 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 f49f94653a96..cc1afa28c181 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;