mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 13:41:51 +00:00
dedb868994
Now that the driver core can properly handle constant struct bus_type, move the container_subsys variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Link: https://lore.kernel.org/r/2023121919-chatter-grumbling-9ef3@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
42 lines
820 B
C
42 lines
820 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* System bus type for containers.
|
|
*
|
|
* Copyright (C) 2013, Intel Corporation
|
|
* Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
|
*/
|
|
|
|
#include <linux/container.h>
|
|
|
|
#include "base.h"
|
|
|
|
#define CONTAINER_BUS_NAME "container"
|
|
|
|
static int trivial_online(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int container_offline(struct device *dev)
|
|
{
|
|
struct container_dev *cdev = to_container_dev(dev);
|
|
|
|
return cdev->offline ? cdev->offline(cdev) : 0;
|
|
}
|
|
|
|
const struct bus_type container_subsys = {
|
|
.name = CONTAINER_BUS_NAME,
|
|
.dev_name = CONTAINER_BUS_NAME,
|
|
.online = trivial_online,
|
|
.offline = container_offline,
|
|
};
|
|
|
|
void __init container_dev_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = subsys_system_register(&container_subsys, NULL);
|
|
if (ret)
|
|
pr_err("%s() failed: %d\n", __func__, ret);
|
|
}
|