/*
 * llc_output.c - LLC minimal output path
 *
 * Copyright (c) 1997 by Procom Technology, Inc.
 * 		 2001-2003 by Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *
 * This program can be redistributed or modified under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation.
 * This program is distributed without any warranty or implied warranty
 * of merchantability or fitness for a particular purpose.
 *
 * See the GNU General Public License version 2 for more details.
 */

#include <linux/if_arp.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/export.h>
#include <net/llc.h>
#include <net/llc_pdu.h>

/**
 *	llc_mac_hdr_init - fills MAC header fields
 *	@skb: Address of the frame to initialize its MAC header
 *	@sa: The MAC source address
 *	@da: The MAC destination address
 *
 *	Fills MAC header fields, depending on MAC type. Returns 0, If MAC type
 *	is a valid type and initialization completes correctly 1, otherwise.
 */
int llc_mac_hdr_init(struct sk_buff *skb,
		     const unsigned char *sa, const unsigned char *da)
{
	int rc = -EINVAL;

	switch (skb->dev->type) {
	case ARPHRD_ETHER:
	case ARPHRD_LOOPBACK:
		rc = dev_hard_header(skb, skb->dev, ETH_P_802_2, da, sa,
				     skb->len);
		if (rc > 0)
			rc = 0;
		break;
	default:
		break;
	}
	return rc;
}

/**
 *	llc_build_and_send_ui_pkt - unitdata request interface for upper layers
 *	@sap: sap to use
 *	@skb: packet to send
 *	@dmac: destination mac address
 *	@dsap: destination sap
 *
 *	Upper layers calls this function when upper layer wants to send data
 *	using connection-less mode communication (UI pdu).
 *
 *	Accept data frame from network layer to be sent using connection-
 *	less mode communication; timeout/retries handled by network layer;
 *	package primitive as an event and send to SAP event handler
 */
int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
			      unsigned char *dmac, unsigned char dsap)
{
	int rc;
	llc_pdu_header_init(skb, LLC_PDU_TYPE_U, sap->laddr.lsap,
			    dsap, LLC_PDU_CMD);
	llc_pdu_init_as_ui_cmd(skb);
	rc = llc_mac_hdr_init(skb, skb->dev->dev_addr, dmac);
	if (likely(!rc))
		rc = dev_queue_xmit(skb);
	return rc;
}

EXPORT_SYMBOL(llc_mac_hdr_init);
EXPORT_SYMBOL(llc_build_and_send_ui_pkt);

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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/power?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d'>power</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='1f93d2abf488c6a41bdd5e6caf80b559493eea8d'/><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 Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-05-25 10:19:17 -0700</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-05-25 10:19:17 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/power?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d'>1f93d2abf488c6a41bdd5e6caf80b559493eea8d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/power?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/power?id=48dd7cefa010b704eb2532a2883798fd6d703a0e'>48dd7cefa010b704eb2532a2883798fd6d703a0e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/power?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d&amp;id2=48dd7cefa010b704eb2532a2883798fd6d703a0e'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/power?id=540be8b2add1a18a4289b11c1a9b6956eb846630'>540be8b2add1a18a4289b11c1a9b6956eb846630</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/power?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d&amp;id2=540be8b2add1a18a4289b11c1a9b6956eb846630'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge git://www.linux-watchdog.org/linux-watchdog</div><div class='commit-msg'>Pull watchdog updates from Wim Van Sebroeck:

 - add support for Fintek F81865 Super-IO chip

 - add support for watchdogs (RWDT and SWDT) found on RCar Gen3 based
   SoCs from Renesas

 - octeon: Handle the FROZEN hot plug notifier actions

 - f71808e_wdt fixes and cleanups

 - some small improvements in code and documentation

* git://www.linux-watchdog.org/linux-watchdog:
  MAINTAINERS: Add file patterns for watchdog device tree bindings
  Documentation: Add ebc-c384_wdt watchdog-parameters.txt entry
  watchdog: shwdt: Use setup_timer()
  watchdog: cpwd: Use setup_timer()
  arm64: defconfig: enable Renesas Watchdog Timer
  watchdog: renesas-wdt: add driver
  watchdog: remove error message when unable to allocate watchdog device
  watchdog: f71808e_wdt: Fix WDTMOUT_STS register read
  watchdog: f71808e_wdt: Fix typo
  watchdog: f71808e_wdt: Add F81865 support
  watchdog: sp5100_tco: properly check for new register layouts
  watchdog: core: Fix circular locking dependency
  watchdog: core: fix trivial typo in a comment
  watchdog: hpwdt: Adjust documentation to match latest kernel module parameters.
  watchdog: imx2_wdt: add external reset support via dt prop
  watchdog: octeon: Handle the FROZEN hot plug notifier actions.
  watchdog: qcom: Report reboot reason
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=1f93d2abf488c6a41bdd5e6caf80b559493eea8d'>Diffstat</a> (limited to 'Documentation/power')</div><table summary='diffstat' class='diffstat'>