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Revision 71e7bc2bab77e64882c031c2af943c3256c1adb0 authored by David Carrillo-Cisneros on 17 August 2016, 20:55:04 UTC, committed by Ingo Molnar on 18 August 2016, 08:35:52 UTC 
perf/core: Check return value of the perf_event_read() IPI
 
The call to smp_call_function_single in perf_event_read() may fail if
an invalid or not online CPU index is passed. Warn user if such bug is
present and return error.

Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1471467307-61171-2-git-send-email-davidcc@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
1 parent 99f5bc9
Raw File
mip6.h 
/*
 * Copyright (C)2003-2006 Helsinki University of Technology
 * Copyright (C)2003-2006 USAGI/WIDE Project
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */
/*
 * Authors:
 *	Noriaki TAKAMIYA @USAGI
 *	Masahide NAKAMURA @USAGI
 *	YOSHIFUJI Hideaki @USAGI
 */
#ifndef _NET_MIP6_H
#define _NET_MIP6_H

#include <linux/skbuff.h>
#include <net/sock.h>

/*
 * Mobility Header
 */
struct ip6_mh {
	__u8	ip6mh_proto;
	__u8	ip6mh_hdrlen;
	__u8	ip6mh_type;
	__u8	ip6mh_reserved;
	__u16	ip6mh_cksum;
	/* Followed by type specific messages */
	__u8	data[0];
} __packed;

#define IP6_MH_TYPE_BRR		0   /* Binding Refresh Request */
#define IP6_MH_TYPE_HOTI	1   /* HOTI Message   */
#define IP6_MH_TYPE_COTI	2   /* COTI Message  */
#define IP6_MH_TYPE_HOT		3   /* HOT Message   */
#define IP6_MH_TYPE_COT		4   /* COT Message  */
#define IP6_MH_TYPE_BU		5   /* Binding Update */
#define IP6_MH_TYPE_BACK	6   /* Binding ACK */
#define IP6_MH_TYPE_BERROR	7   /* Binding Error */
#define IP6_MH_TYPE_MAX		IP6_MH_TYPE_BERROR

#endif
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