/*
 * <:copyright-BRCM:2020:DUAL/GPL:standard 
 * 
 *    Copyright (c) 2020 Broadcom 
 *    All Rights Reserved
 * 
 * Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed
 * to you under the terms of the GNU General Public License version 2
 * (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php,
 * with the following added to such license:
 * 
 *    As a special exception, the copyright holders of this software give
 *    you permission to link this software with independent modules, and
 *    to copy and distribute the resulting executable under terms of your
 *    choice, provided that you also meet, for each linked independent
 *    module, the terms and conditions of the license of that module.
 *    An independent module is a module which is not derived from this
 *    software.  The special exception does not apply to any modifications
 *    of the software.
 * 
 * Not withstanding the above, under no circumstances may you combine
 * this software in any way with any other Broadcom software provided
 * under a license other than the GPL, without Broadcom's express prior
 * written consent.
 * 
 * :>
 */
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/notifier.h>

/* --- variables --- */
static ATOMIC_NOTIFIER_HEAD(notify_chain);

/* --- functions --- */
int dpi_register_notifier(struct notifier_block *nb)
{
	return atomic_notifier_chain_register(&notify_chain, nb);
}
EXPORT_SYMBOL(dpi_register_notifier);

int dpi_unregister_notifier(struct notifier_block *nb)
{
	return atomic_notifier_chain_unregister(&notify_chain, nb);
}
EXPORT_SYMBOL(dpi_unregister_notifier);

int dpi_notify(long event, void *data)
{
	return atomic_notifier_call_chain(&notify_chain, event, data);
}
EXPORT_SYMBOL(dpi_notify);