2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* PF_INET6 protocol dispatch tables.
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*
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* Authors: Pedro Roque <roque@di.fc.ul.pt>
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*/
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/*
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* Changes:
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*
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* Vince Laviano (vince@cs.stanford.edu) 16 May 2001
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* - Removed unused variable 'inet6_protocol_base'
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* - Modified inet6_del_protocol() to correctly maintain copy bit.
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*/
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/spinlock.h>
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#include <net/protocol.h>
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#if IS_ENABLED(CONFIG_IPV6)
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struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;
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EXPORT_SYMBOL(inet6_protos);
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int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol)
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{
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return !cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol],
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NULL, prot) ? 0 : -1;
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}
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EXPORT_SYMBOL(inet6_add_protocol);
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int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol)
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{
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int ret;
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ret = (cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol],
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prot, NULL) == prot) ? 0 : -1;
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synchronize_net();
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return ret;
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}
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EXPORT_SYMBOL(inet6_del_protocol);
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#endif
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const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly;
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EXPORT_SYMBOL(inet6_offloads);
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int inet6_add_offload(const struct net_offload *prot, unsigned char protocol)
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{
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return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
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NULL, prot) ? 0 : -1;
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}
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EXPORT_SYMBOL(inet6_add_offload);
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int inet6_del_offload(const struct net_offload *prot, unsigned char protocol)
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{
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int ret;
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ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
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prot, NULL) == prot) ? 0 : -1;
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synchronize_net();
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return ret;
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}
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EXPORT_SYMBOL(inet6_del_offload);
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