/*
 * 	IEEE 802.1Q GARP VLAN Registration Protocol (GVRP)
 *
 * 	Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License
 *	version 2 as published by the Free Software Foundation.
 */
#include <linux/types.h>
#include <linux/if_vlan.h>
#include <net/garp.h>
#include "vlan.h"

#define GARP_GVRP_ADDRESS	{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 }

enum gvrp_attributes {
	GVRP_ATTR_INVALID,
	GVRP_ATTR_VID,
	__GVRP_ATTR_MAX
};
#define GVRP_ATTR_MAX	(__GVRP_ATTR_MAX - 1)

static struct garp_application vlan_gvrp_app __read_mostly = {
	.proto.group_address	= GARP_GVRP_ADDRESS,
	.maxattr		= GVRP_ATTR_MAX,
	.type			= GARP_APPLICATION_GVRP,
};

int vlan_gvrp_request_join(const struct net_device *dev)
{
	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
	__be16 vlan_id = htons(vlan->vlan_id);

	if (vlan->vlan_proto != htons(ETH_P_8021Q))
		return 0;
	return garp_request_join(vlan->real_dev, &vlan_gvrp_app,
				 &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
}

void vlan_gvrp_request_leave(const struct net_device *dev)
{
	const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
	__be16 vlan_id = htons(vlan->vlan_id);

	if (vlan->vlan_proto != htons(ETH_P_8021Q))
		return;
	garp_request_leave(vlan->real_dev, &vlan_gvrp_app,
			   &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
}

int vlan_gvrp_init_applicant(struct net_device *dev)
{
	return garp_init_applicant(dev, &vlan_gvrp_app);
}

void vlan_gvrp_uninit_applicant(struct net_device *dev)
{
	garp_uninit_applicant(dev, &vlan_gvrp_app);
}

int __init vlan_gvrp_init(void)
{
	return garp_register_application(&vlan_gvrp_app);
}

void vlan_gvrp_uninit(void)
{
	garp_unregister_application(&vlan_gvrp_app);
}
log/net/batman-adv?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/batman-adv'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>batman-adv</a></div><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='c26665ab5c49ad3e142e0f054ca3204f259ba09c'/><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>Borislav Petkov &lt;bp@suse.de&gt;</td><td class='right'>2017-01-20 21:29:40 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-23 09:39:55 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>c26665ab5c49ad3e142e0f054ca3204f259ba09c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/batman-adv?id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>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=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>3bab11918e18e9d25ef7544dba05cdf39d1abec5</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>net/batman-adv</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/batman-adv?h=nds-private-remove&amp;id=7a308bb3016f57e5be11a677d15b821536419d36'>7a308bb3016f57e5be11a677d15b821536419d36</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/batman-adv?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c&amp;id2=7a308bb3016f57e5be11a677d15b821536419d36'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/microcode/intel: Drop stashed AP patch pointer optimization</div><div class='commit-msg'>This was meant to save us the scanning of the microcode containter in
the initrd since the first AP had already done that but it can also hurt
us:

Imagine a single hyperthreaded CPU (Intel(R) Atom(TM) CPU N270, for
example) which updates the microcode on the BSP but since the microcode
engine is shared between the two threads, the update on CPU1 doesn't
happen because it has already happened on CPU0 and we don't find a newer
microcode revision on CPU1.

Which doesn't set the intel_ucode_patch pointer and at initrd
jettisoning time we don't save the microcode patch for later
application.

Now, when we suspend to RAM, the loaded microcode gets cleared so we
need to reload but there's no patch saved in the cache.

Removing the optimization fixes this issue and all is fine and dandy.

Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading")
Signed-off-by: Borislav Petkov &lt;bp@suse.de&gt;
Reviewed-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Link: http://lkml.kernel.org/r/20170120202955.4091-2-bp@alien8.de
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>Diffstat</a> (limited to 'net/batman-adv')</div><table summary='diffstat' class='diffstat'>