struct device w1_master_device = {
        .parent = NULL,
        .bus = &w1_bus_type,
-       .bus_id = "w1 bus master",
+       .init_name = "w1 bus master",
        .driver = &w1_master_driver,
        .release = &w1_master_release
 };
 struct device w1_slave_device = {
        .parent = NULL,
        .bus = &w1_bus_type,
-       .bus_id = "w1 bus slave",
+       .init_name = "w1 bus slave",
        .driver = &w1_slave_driver,
        .release = &w1_slave_release
 };
        }
 
        dev_dbg(dev, "Hotplug event for %s %s, bus_id=%s.\n",
-                       event_owner, name, dev->bus_id);
+                       event_owner, name, dev_name(dev));
 
        if (dev->driver != &w1_slave_driver || !sl)
                return 0;
        sl->dev.bus = &w1_bus_type;
        sl->dev.release = &w1_slave_release;
 
-       snprintf(&sl->dev.bus_id[0], sizeof(sl->dev.bus_id),
-                "%02x-%012llx",
+       dev_set_name(&sl->dev, "%02x-%012llx",
                 (unsigned int) sl->reg_num.family,
                 (unsigned long long) sl->reg_num.id);
        snprintf(&sl->name[0], sizeof(sl->name),
                 (unsigned long long) sl->reg_num.id);
 
        dev_dbg(&sl->dev, "%s: registering %s as %p.\n", __func__,
-               &sl->dev.bus_id[0], sl);
+               dev_name(&sl->dev), sl);
 
        err = device_register(&sl->dev);
        if (err < 0) {
                dev_err(&sl->dev,
                        "Device registration [%s] failed. err=%d\n",
-                       sl->dev.bus_id, err);
+                       dev_name(&sl->dev), err);
                return err;
        }
 
        if (err < 0) {
                dev_err(&sl->dev,
                        "sysfs file creation for [%s] failed. err=%d\n",
-                       sl->dev.bus_id, err);
+                       dev_name(&sl->dev), err);
                goto out_unreg;
        }
 
        if (err < 0) {
                dev_err(&sl->dev,
                        "sysfs file creation for [%s] failed. err=%d\n",
-                       sl->dev.bus_id, err);
+                       dev_name(&sl->dev), err);
                goto out_rem1;
        }
 
            ((err = sl->family->fops->add_slave(sl)) < 0)) {
                dev_err(&sl->dev,
                        "sysfs file creation for [%s] failed. err=%d\n",
-                       sl->dev.bus_id, err);
+                       dev_name(&sl->dev), err);
                goto out_rem2;
        }
 
 
        mutex_init(&dev->mutex);
 
        memcpy(&dev->dev, device, sizeof(struct device));
-       snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
-                 "w1_bus_master%u", dev->id);
+       dev_set_name(&dev->dev, "w1_bus_master%u", dev->id);
        snprintf(dev->name, sizeof(dev->name), "w1_bus_master%u", dev->id);
 
        dev->driver = driver;