1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * System bus type for containers.
 4 *
 5 * Copyright (C) 2013, Intel Corporation
 6 * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 7 */
 8
 9#include <linux/container.h>
10
11#include "base.h"
12
13#define CONTAINER_BUS_NAME	"container"
14
15static int trivial_online(struct device *dev)
16{
17	return 0;
18}
19
20static int container_offline(struct device *dev)
21{
22	struct container_dev *cdev = to_container_dev(dev);
23
24	return cdev->offline ? cdev->offline(cdev) : 0;
25}
26
27struct bus_type container_subsys = {
28	.name = CONTAINER_BUS_NAME,
29	.dev_name = CONTAINER_BUS_NAME,
30	.online = trivial_online,
31	.offline = container_offline,
32};
33
34void __init container_dev_init(void)
35{
36	int ret;
37
38	ret = subsys_system_register(&container_subsys, NULL);
39	if (ret)
40		pr_err("%s() failed: %d\n", __func__, ret);
41}