|  | // SPDX-License-Identifier: GPL-2.0-only | 
|  | /* | 
|  | * Copyright (c) 2010, Intel Corporation. | 
|  | * | 
|  | * Author: John Fastabend <john.r.fastabend@intel.com> | 
|  | */ | 
|  |  | 
|  | #include <linux/rtnetlink.h> | 
|  | #include <linux/notifier.h> | 
|  | #include <linux/export.h> | 
|  | #include <net/dcbevent.h> | 
|  |  | 
|  | static ATOMIC_NOTIFIER_HEAD(dcbevent_notif_chain); | 
|  |  | 
|  | int register_dcbevent_notifier(struct notifier_block *nb) | 
|  | { | 
|  | return atomic_notifier_chain_register(&dcbevent_notif_chain, nb); | 
|  | } | 
|  | EXPORT_SYMBOL(register_dcbevent_notifier); | 
|  |  | 
|  | int unregister_dcbevent_notifier(struct notifier_block *nb) | 
|  | { | 
|  | return atomic_notifier_chain_unregister(&dcbevent_notif_chain, nb); | 
|  | } | 
|  | EXPORT_SYMBOL(unregister_dcbevent_notifier); | 
|  |  | 
|  | int call_dcbevent_notifiers(unsigned long val, void *v) | 
|  | { | 
|  | return atomic_notifier_call_chain(&dcbevent_notif_chain, val, v); | 
|  | } |