#ifndef DIE_H
#define DIE_H

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <syslog.h>

#include "built_in.h"

extern void panic_handler_add(void (*on_panic)(void *arg), void *arg);
extern void call_panic_handlers(void);

static inline void panic(const char *format, ...)  __check_format_printf(1, 2);
static inline void syslog_panic(const char *format,
				...) __check_format_printf(1, 2);
static inline void syslog_maybe(bool cond, int priority,
				const char *format, ...) __check_format_printf(3, 4);

static inline void __noreturn __die_hard(void)
{
	call_panic_handlers();
	exit(EXIT_FAILURE);
}

static inline void __noreturn __die_harder(void)
{
	call_panic_handlers();
	_exit(EXIT_FAILURE);
}

static inline void __noreturn die(void)
{
	__die_hard();
}

static inline void __noreturn _die(void)
{
	__die_harder();
}

static inline void __noreturn panic(const char *format, ...)
{
	va_list vl;

	va_start(vl, format);
	vfprintf(stderr, format, vl);
	va_end(vl);

	die();
}

static inline void __noreturn syslog_panic(const char *format, ...)
{
	va_list vl;

	va_start(vl, format);
	vsyslog(LOG_ERR, format, vl);
	va_end(vl);

	die();
}

static inline void syslog_maybe(bool cond, int priority,
				const char *format, ...)
{
	if (cond) {
		va_list vl;

		va_start(vl, format);
		vsyslog(priority, format, vl);
		va_end(vl);
	}
}

#endif /* DIE_H */
ass='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/'>
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Lüssing &lt;linus.luessing@c0d3.blue&gt;</td><td class='right'>2017-02-03 08:11:03 +0100</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-02-06 11:43:01 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>7d9d500b93d6ec98ac8f59c9031d01d92df23bac</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=62f01db9cf830957931f811d4da5f2bc34ce92f4'>62f01db9cf830957931f811d4da5f2bc34ce92f4</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5&amp;id2=62f01db9cf830957931f811d4da5f2bc34ce92f4'>diff</a>)</td></tr></table>
<div class='commit-subject'>ipv6: Fix IPv6 packet loss in scenarios involving roaming + snooping switches</div><div class='commit-msg'>When for instance a mobile Linux device roams from one access point to
another with both APs sharing the same broadcast domain and a
multicast snooping switch in between:

1)    (c) &lt;~~~&gt; (AP1) &lt;--[SSW]--&gt; (AP2)

2)              (AP1) &lt;--[SSW]--&gt; (AP2) &lt;~~~&gt; (c)

Then currently IPv6 multicast packets will get lost for (c) until an
MLD Querier sends its next query message. The packet loss occurs
because upon roaming the Linux host so far stayed silent regarding
MLD and the snooping switch will therefore be unaware of the
multicast topology change for a while.

This patch fixes this by always resending MLD reports when an interface
change happens, for instance from NO-CARRIER to CARRIER state.

Signed-off-by: Linus Lüssing &lt;linus.luessing@c0d3.blue&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>Diffstat</a></div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/net/ipv6/addrconf.c?h=nds-private-remove&amp;id=a088d1d73a4bcfd7bc482f8d08375b9b665dc3e5'>net/ipv6/addrconf.c</a></td><td class='right'>10</td><td class='graph'><table summary='file diffstat' width='10%'><tr><td class='add' style='width: 80.0%;'/><td class='rem' style='width: 20.0%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
</table><div class='diffstat-summary'>1 files changed, 8 insertions, 2 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c