/*
 * Copyright (C) 2015, He Kuang <hekuang@huawei.com>
 * Copyright (C) 2015, Huawei Inc.
 */
#ifndef __BPF_PROLOGUE_H
#define __BPF_PROLOGUE_H

#include <linux/compiler.h>
#include <linux/filter.h>
#include "probe-event.h"

#define BPF_PROLOGUE_MAX_ARGS 3
#define BPF_PROLOGUE_START_ARG_REG BPF_REG_3
#define BPF_PROLOGUE_FETCH_RESULT_REG BPF_REG_2

#ifdef HAVE_BPF_PROLOGUE
int bpf__gen_prologue(struct probe_trace_arg *args, int nargs,
		      struct bpf_insn *new_prog, size_t *new_cnt,
		      size_t cnt_space);
#else
static inline int
bpf__gen_prologue(struct probe_trace_arg *args __maybe_unused,
		  int nargs __maybe_unused,
		  struct bpf_insn *new_prog __maybe_unused,
		  size_t *new_cnt,
		  size_t cnt_space __maybe_unused)
{
	if (!new_cnt)
		return -EINVAL;
	*new_cnt = 0;
	return -ENOTSUP;
}
#endif
#endif /* __BPF_PROLOGUE_H */
<td class='form'><form method='get'>
<input type='hidden' name='id' value='69973b830859bc6529a7a0468ba0d80ee5117826'/><select name='h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master'>master</option>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='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=69973b830859bc6529a7a0468ba0d80ee5117826'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/da7210.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/da7210.c'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='69973b830859bc6529a7a0468ba0d80ee5117826'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>codecs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>da7210.c</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='69973b830859bc6529a7a0468ba0d80ee5117826'/><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'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-11 11:17:54 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>69973b830859bc6529a7a0468ba0d80ee5117826</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/soc/codecs/da7210.c?id=69973b830859bc6529a7a0468ba0d80ee5117826'>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=69973b830859bc6529a7a0468ba0d80ee5117826'>5f11fe15ed9d9a3ab9c92242030e54b73ecdce45</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>sound/soc/codecs/da7210.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=2e4333c14de06a333783d6812cf3c4998f78b0c8'>2e4333c14de06a333783d6812cf3c4998f78b0c8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/soc/codecs/da7210.c?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;id2=2e4333c14de06a333783d6812cf3c4998f78b0c8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Linux 4.9</div><div class='commit-msg'></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=69973b830859bc6529a7a0468ba0d80ee5117826'>Diffstat</a> (limited to 'sound/soc/codecs/da7210.c')</div><table summary='diffstat' class='diffstat'>