1 /* 2 * Copyright (c) 2010, Intel Corporation. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 * You should have received a copy of the GNU General Public License along with 14 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple 15 * Place - Suite 330, Boston, MA 02111-1307 USA. 16 * 17 * Author: John Fastabend <john.r.fastabend@intel.com> 18 */ 19 20 #include <linux/rtnetlink.h> 21 #include <linux/notifier.h> 22 #include <linux/export.h> 23 24 static ATOMIC_NOTIFIER_HEAD(dcbevent_notif_chain); 25 26 int register_dcbevent_notifier(struct notifier_block *nb) 27 { 28 return atomic_notifier_chain_register(&dcbevent_notif_chain, nb); 29 } 30 EXPORT_SYMBOL(register_dcbevent_notifier); 31 32 int unregister_dcbevent_notifier(struct notifier_block *nb) 33 { 34 return atomic_notifier_chain_unregister(&dcbevent_notif_chain, nb); 35 } 36 EXPORT_SYMBOL(unregister_dcbevent_notifier); 37 38 int call_dcbevent_notifiers(unsigned long val, void *v) 39 { 40 return atomic_notifier_call_chain(&dcbevent_notif_chain, val, v); 41 } 42