/*
 * PTP 1588 clock support - support for timestamping in PHY devices
 *
 * Copyright (C) 2010 OMICRON electronics GmbH
 *
 *  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, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include <linux/errqueue.h>
#include <linux/phy.h>
#include <linux/ptp_classify.h>
#include <linux/skbuff.h>
#include <linux/export.h>

static unsigned int classify(const struct sk_buff *skb)
{
	if (likely(skb->dev && skb->dev->phydev &&
		   skb->dev->phydev->drv))
		return ptp_classify_raw(skb);
	else
		return PTP_CLASS_NONE;
}

void skb_clone_tx_timestamp(struct sk_buff *skb)
{
	struct phy_device *phydev;
	struct sk_buff *clone;
	unsigned int type;

	if (!skb->sk)
		return;

	type = classify(skb);
	if (type == PTP_CLASS_NONE)
		return;

	phydev = skb->dev->phydev;
	if (likely(phydev->drv->txtstamp)) {
		clone = skb_clone_sk(skb);
		if (!clone)
			return;
		phydev->drv->txtstamp(phydev, clone, type);
	}
}
EXPORT_SYMBOL_GPL(skb_clone_tx_timestamp);

bool skb_defer_rx_timestamp(struct sk_buff *skb)
{
	struct phy_device *phydev;
	unsigned int type;

	if (!skb->dev || !skb->dev->phydev || !skb->dev->phydev->drv)
		return false;

	if (skb_headroom(skb) < ETH_HLEN)
		return false;

	__skb_push(skb, ETH_HLEN);

	type = ptp_classify_raw(skb);

	__skb_pull(skb, ETH_HLEN);

	if (type == PTP_CLASS_NONE)
		return false;

	phydev = skb->dev->phydev;
	if (likely(phydev->drv->rxtstamp))
		return phydev->drv->rxtstamp(phydev, skb, type);

	return false;
}
EXPORT_SYMBOL_GPL(skb_defer_rx_timestamp);
48cc7d94a2d00d6f89ba3d8'/><select name='qt'>
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='60863c0d1a96b740048cc7d94a2d00d6f89ba3d8'/><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>Matt Fleming &lt;matt@codeblueprint.co.uk&gt;</td><td class='right'>2016-02-29 20:30:39 +0000</td></tr>
<tr><th>committer</th><td>Matt Fleming &lt;matt@codeblueprint.co.uk&gt;</td><td class='right'>2016-09-09 16:07:46 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=60863c0d1a96b740048cc7d94a2d00d6f89ba3d8'>60863c0d1a96b740048cc7d94a2d00d6f89ba3d8</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=60863c0d1a96b740048cc7d94a2d00d6f89ba3d8'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=60863c0d1a96b740048cc7d94a2d00d6f89ba3d8'>2b538c39017d04a50ae1d43c58fe40a5b0e446d9</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=c8c1a4c5e4ead0d2dcf0f0bcb8bdbdcf877fb3bb'>c8c1a4c5e4ead0d2dcf0f0bcb8bdbdcf877fb3bb</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=60863c0d1a96b740048cc7d94a2d00d6f89ba3d8&amp;id2=c8c1a4c5e4ead0d2dcf0f0bcb8bdbdcf877fb3bb'>diff</a>)</td></tr></table>
<div class='commit-subject'>efi: Split out EFI memory map functions into new file</div><div class='commit-msg'>Also move the functions from the EFI fake mem driver since future
patches will require access to the memmap insertion code even if
CONFIG_EFI_FAKE_MEM isn't enabled.

This will be useful when we need to build custom EFI memory maps to
allow drivers to mark regions as reserved.

Tested-by: Dave Young &lt;dyoung@redhat.com&gt; [kexec/kdump]
Tested-by: Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt; [arm]
Acked-by: Ard Biesheuvel &lt;ard.biesheuvel@linaro.org&gt;
Cc: Leif Lindholm &lt;leif.lindholm@linaro.org&gt;
Cc: Peter Jones &lt;pjones@redhat.com&gt;
Cc: Borislav Petkov &lt;bp@alien8.de&gt;
Cc: Mark Rutland &lt;mark.rutland@arm.com&gt;
Cc: Taku Izumi &lt;izumi.taku@jp.fujitsu.com&gt;
Signed-off-by: Matt Fleming &lt;matt@codeblueprint.co.uk&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=60863c0d1a96b740048cc7d94a2d00d6f89ba3d8'>Diffstat</a></div><table summary='diffstat' class='diffstat'>