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// SPDX-License-Identifier: GPL-2.0
/*
* ConfigFS support
*
* Copyright (C) 2026, Intel Corporation
* Author: Mika Westerberg <mika.westerberg@linux.intel.com>
*/
#include <linux/configfs.h>
#include <linux/export.h>
#include "tb.h"
static const struct config_item_type tb_root_group_type = {
.ct_owner = THIS_MODULE,
};
static struct configfs_subsystem tb_configfs = {
.su_group = {
.cg_item = {
.ci_namebuf = "thunderbolt",
.ci_type = &tb_root_group_type,
},
},
};
/**
* tb_configfs_register_group() - Register Thunderbolt ConfigFS group
* @group: Group to register.
*
* Registers the new @group under Thunderbolt subsystem ConfigFS.
*
* Return: 0% in case of success, negative errno otherwise.
*/
int tb_configfs_register_group(struct config_group *group)
{
return configfs_register_group(&tb_configfs.su_group, group);
}
EXPORT_SYMBOL_GPL(tb_configfs_register_group);
/**
* tb_configfs_unregister_group() - Unregister previously registered group
* @group: Group to unregister.
*/
void tb_configfs_unregister_group(struct config_group *group)
{
configfs_unregister_group(group);
}
EXPORT_SYMBOL_GPL(tb_configfs_unregister_group);
int tb_configfs_init(void)
{
config_group_init(&tb_configfs.su_group);
mutex_init(&tb_configfs.su_mutex);
return configfs_register_subsystem(&tb_configfs);
}
void tb_configfs_exit(void)
{
configfs_unregister_subsystem(&tb_configfs);
}
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