/*
 * 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;
od='get'>
<input type='hidden' name='id' value='d1156b489fa734d1af763d6a07b1637c01bb0aed'/><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=d1156b489fa734d1af763d6a07b1637c01bb0aed'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/drivers'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers'>
<input type='hidden' name='id' value='d1156b489fa734d1af763d6a07b1637c01bb0aed'/><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/?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>drivers</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='d1156b489fa734d1af763d6a07b1637c01bb0aed'/><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>Alexey Khoroshilov &lt;khoroshilov@ispras.ru&gt;</td><td class='right'>2017-01-28 01:07:30 +0300</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-29 19:04:11 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>d1156b489fa734d1af763d6a07b1637c01bb0aed</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>5b9787eb26cd81f9ca16cf3d53f70cf8bf03c5db</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>drivers</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=cf626c3b252b2c9d131be0dd66096ec3bf729e54'>cf626c3b252b2c9d131be0dd66096ec3bf729e54</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers?id=d1156b489fa734d1af763d6a07b1637c01bb0aed&amp;id2=cf626c3b252b2c9d131be0dd66096ec3bf729e54'>diff</a>)</td></tr></table>
<div class='commit-subject'>net: adaptec: starfire: add checks for dma mapping errors</div><div class='commit-msg'>init_ring(), refill_rx_ring() and start_tx() don't check
if mapping dma memory succeed.
The patch adds the checks and failure handling.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov &lt;khoroshilov@ispras.ru&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=d1156b489fa734d1af763d6a07b1637c01bb0aed'>Diffstat</a> (limited to 'drivers')</div><table summary='diffstat' class='diffstat'>