1 /* 2 * System bus type for containers. 3 * 4 * Copyright (C) 2013, Intel Corporation 5 * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 #include <linux/container.h> 13 14 #include "base.h" 15 16 #define CONTAINER_BUS_NAME "container" 17 18 static int trivial_online(struct device *dev) 19 { 20 return 0; 21 } 22 23 static int container_offline(struct device *dev) 24 { 25 struct container_dev *cdev = to_container_dev(dev); 26 27 return cdev->offline ? cdev->offline(cdev) : 0; 28 } 29 30 struct bus_type container_subsys = { 31 .name = CONTAINER_BUS_NAME, 32 .dev_name = CONTAINER_BUS_NAME, 33 .online = trivial_online, 34 .offline = container_offline, 35 }; 36 37 void __init container_dev_init(void) 38 { 39 int ret; 40 41 ret = subsys_system_register(&container_subsys, NULL); 42 if (ret) 43 pr_err("%s() failed: %d\n", __func__, ret); 44 } 45