xref: /OK3568_Linux_fs/kernel/net/dcb/dcbevent.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Copyright (c) 2010, Intel Corporation.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * Author: John Fastabend <john.r.fastabend@intel.com>
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #include <linux/rtnetlink.h>
9*4882a593Smuzhiyun #include <linux/notifier.h>
10*4882a593Smuzhiyun #include <linux/export.h>
11*4882a593Smuzhiyun #include <net/dcbevent.h>
12*4882a593Smuzhiyun 
13*4882a593Smuzhiyun static ATOMIC_NOTIFIER_HEAD(dcbevent_notif_chain);
14*4882a593Smuzhiyun 
register_dcbevent_notifier(struct notifier_block * nb)15*4882a593Smuzhiyun int register_dcbevent_notifier(struct notifier_block *nb)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun 	return atomic_notifier_chain_register(&dcbevent_notif_chain, nb);
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun EXPORT_SYMBOL(register_dcbevent_notifier);
20*4882a593Smuzhiyun 
unregister_dcbevent_notifier(struct notifier_block * nb)21*4882a593Smuzhiyun int unregister_dcbevent_notifier(struct notifier_block *nb)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun 	return atomic_notifier_chain_unregister(&dcbevent_notif_chain, nb);
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun EXPORT_SYMBOL(unregister_dcbevent_notifier);
26*4882a593Smuzhiyun 
call_dcbevent_notifiers(unsigned long val,void * v)27*4882a593Smuzhiyun int call_dcbevent_notifiers(unsigned long val, void *v)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun 	return atomic_notifier_call_chain(&dcbevent_notif_chain, val, v);
30*4882a593Smuzhiyun }
31