#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <linux/kernel.h>
#include <linux/err.h>
#include <traceevent/event-parse.h>
#include <api/fs/tracing_path.h>
#include <api/fs/fs.h>
#include "trace-event.h"
#include "machine.h"
#include "util.h"

/*
 * global trace_event object used by trace_event__tp_format
 *
 * TODO There's no cleanup call for this. Add some sort of
 * __exit function support and call trace_event__cleanup
 * there.
 */
static struct trace_event tevent;
static bool tevent_initialized;

int trace_event__init(struct trace_event *t)
{
	struct pevent *pevent = pevent_alloc();

	if (pevent) {
		t->plugin_list = traceevent_load_plugins(pevent);
		t->pevent  = pevent;
	}

	return pevent ? 0 : -1;
}

static int trace_event__init2(void)
{
	int be = traceevent_host_bigendian();
	struct pevent *pevent;

	if (trace_event__init(&tevent))
		return -1;

	pevent = tevent.pevent;
	pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
	pevent_set_file_bigendian(pevent, be);
	pevent_set_host_bigendian(pevent, be);
	tevent_initialized = true;
	return 0;
}

int trace_event__register_resolver(struct machine *machine,
				   pevent_func_resolver_t *func)
{
	if (!tevent_initialized && trace_event__init2())
		return -1;

	return pevent_set_function_resolver(tevent.pevent, func, machine);
}

void trace_event__cleanup(struct trace_event *t)
{
	traceevent_unload_plugins(t->plugin_list, t->pevent);
	pevent_free(t->pevent);
}

/*
 * Returns pointer with encoded error via <linux/err.h> interface.
 */
static struct event_format*
tp_format(const char *sys, const char *name)
{
	struct pevent *pevent = tevent.pevent;
	struct event_format *event = NULL;
	char path[PATH_MAX];
	size_t size;
	char *data;
	int err;

	scnprintf(path, PATH_MAX, "%s/%s/%s/format",
		  tracing_events_path, sys, name);

	err = filename__read_str(path, &data, &size);
	if (err)
		return ERR_PTR(err);

	pevent_parse_format(pevent, &event, data, size, sys);

	free(data);
	return event;
}

/*
 * Returns pointer with encoded error via <linux/err.h> interface.
 */
struct event_format*
trace_event__tp_format(const char *sys, const char *name)
{
	if (!tevent_initialized && trace_event__init2())
		return ERR_PTR(-ENOMEM);

	return tp_format(sys, name);
}

struct event_format *trace_event__tp_format_id(int id)
{
	if (!tevent_initialized && trace_event__init2())
		return ERR_PTR(-ENOMEM);

	return pevent_find_event(tevent.pevent, id);
}
6a1'/><select name='qt'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=edee4f1e92458299505ff007733f676b00c516a1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?h=nds-private-remove&amp;id=edee4f1e92458299505ff007733f676b00c516a1'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/openvswitch?h=nds-private-remove&amp;id=edee4f1e92458299505ff007733f676b00c516a1'>openvswitch</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/openvswitch/vport-gre.c?h=nds-private-remove&amp;id=edee4f1e92458299505ff007733f676b00c516a1'>vport-gre.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/openvswitch/vport-gre.c?h=nds-private-remove&amp;id=edee4f1e92458299505ff007733f676b00c516a1&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
ion 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>Harsh Jain &lt;harsh@chelsio.com&gt;</td><td class='right'>2017-02-01 21:10:28 +0530</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2017-02-03 17:45:48 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/batman-adv/bat_algo.h?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>0b529f143e8baad441a5aac9ad55ec2434d8fb46</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/batman-adv/bat_algo.h?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>fd816e548e12745d4776ad0bd661bec142d3ea06</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/batman-adv/bat_algo.h?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>net/batman-adv/bat_algo.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/batman-adv/bat_algo.h?id=c26819900036f5b91608051a0fc7c76f6b4ffc7b'>c26819900036f5b91608051a0fc7c76f6b4ffc7b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/batman-adv/bat_algo.h?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46&amp;id2=c26819900036f5b91608051a0fc7c76f6b4ffc7b'>diff</a>)</td></tr></table>
<div class='commit-subject'>crypto: algif_aead - Fix kernel panic on list_del</div><div class='commit-msg'>Kernel panics when userspace program try to access AEAD interface.
Remove node from Linked List before freeing its memory.

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Harsh Jain &lt;harsh@chelsio.com&gt;
Reviewed-by: Stephan Müller &lt;smueller@chronox.de&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>Diffstat</a> (limited to 'net/batman-adv/bat_algo.h')</div><table summary='diffstat' class='diffstat'>