Skip to main content

Browse the archive

Revision ab02b61f24c76b1659086fcc8b00cbeeb6e95ac7 authored by Linus Torvalds on 16 February 2020, 21:05:46 UTC, committed by Linus Torvalds on 16 February 2020, 21:05:46 UTC 
Merge tag 'for-linus-5.6-1' of https://github.com/cminyard/linux-ipmi
 
Pull IPMI update from Corey Minyard:
 "Minor bug fixes for IPMI

  I know this is late; I've been travelling and, well, I've been
  distracted.

  This is just a few bug fixes and adding i2c support to the IPMB
  driver, which is something I wanted from the beginning for it"

* tag 'for-linus-5.6-1' of https://github.com/cminyard/linux-ipmi:
  drivers: ipmi: fix off-by-one bounds check that leads to a out-of-bounds write
  ipmi:ssif: Handle a possible NULL pointer reference
  drivers: ipmi: Modify max length of IPMB packet
  drivers: ipmi: Support raw i2c packet in IPMB
2 parent s 44024ad + e0354d1
Raw File
protocol.c 
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		PF_INET6 protocol dispatch tables.
 *
 * Authors:	Pedro Roque	<roque@di.fc.ul.pt>
 */

/*
 *      Changes:
 *
 *      Vince Laviano (vince@cs.stanford.edu)       16 May 2001
 *      - Removed unused variable 'inet6_protocol_base'
 *      - Modified inet6_del_protocol() to correctly maintain copy bit.
 */
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <net/protocol.h>

#if IS_ENABLED(CONFIG_IPV6)
struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;
EXPORT_SYMBOL(inet6_protos);

int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol)
{
	return !cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol],
			NULL, prot) ? 0 : -1;
}
EXPORT_SYMBOL(inet6_add_protocol);

int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol)
{
	int ret;

	ret = (cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol],
		       prot, NULL) == prot) ? 0 : -1;

	synchronize_net();

	return ret;
}
EXPORT_SYMBOL(inet6_del_protocol);
#endif

const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly;
EXPORT_SYMBOL(inet6_offloads);

int inet6_add_offload(const struct net_offload *prot, unsigned char protocol)
{
	return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
			NULL, prot) ? 0 : -1;
}
EXPORT_SYMBOL(inet6_add_offload);

int inet6_del_offload(const struct net_offload *prot, unsigned char protocol)
{
	int ret;

	ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
		       prot, NULL) == prot) ? 0 : -1;

	synchronize_net();

	return ret;
}
EXPORT_SYMBOL(inet6_del_offload);
back to top