/*
 * bpf-script-test-prologue.c
 * Test BPF prologue
 */
#ifndef LINUX_VERSION_CODE
# error Need LINUX_VERSION_CODE
# error Example: for 4.2 kernel, put 'clang-opt="-DLINUX_VERSION_CODE=0x40200" into llvm section of ~/.perfconfig'
#endif
#define SEC(NAME) __attribute__((section(NAME), used))

#include <uapi/linux/fs.h>

#define FMODE_READ		0x1
#define FMODE_WRITE		0x2

static void (*bpf_trace_printk)(const char *fmt, int fmt_size, ...) =
	(void *) 6;

SEC("func=null_lseek file->f_mode offset orig")
int bpf_func__null_lseek(void *ctx, int err, unsigned long f_mode,
			 unsigned long offset, unsigned long orig)
{
	if (err)
		return 0;
	if (f_mode & FMODE_WRITE)
		return 0;
	if (offset & 1)
		return 0;
	if (orig == SEEK_CUR)
		return 0;
	return 1;
}

char _license[] SEC("license") = "GPL";
int _version SEC("version") = LINUX_VERSION_CODE;
ue='0d5415b489f68b58e1983a53793d25d53098ed4b'/><select name='h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>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/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/include/sound/hdaudio_ext.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/sound/hdaudio_ext.h?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/hdaudio_ext.h?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/sound/hdaudio_ext.h?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/sound/hdaudio_ext.h'>
<input type='hidden' name='id' value='0d5415b489f68b58e1983a53793d25d53098ed4b'/><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/log/?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/sound?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/sound/hdaudio_ext.h?id=0d5415b489f68b58e1983a53793d25d53098ed4b'>hdaudio_ext.h</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/include/sound/hdaudio_ext.h?id=0d5415b489f68b58e1983a53793d25d53098ed4b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>