LXR linux/drivers/base/container.c

   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}
  42