#include <malloc.h>
#include <stdlib.h>
#include <string.h>
#include "utils.h"

#define SIZE 256
#define ITERATIONS 10000

int test_memcmp(const void *s1, const void *s2, size_t n);

/* test all offsets and lengths */
static void test_one(char *s1, char *s2)
{
	unsigned long offset, size;

	for (offset = 0; offset < SIZE; offset++) {
		for (size = 0; size < (SIZE-offset); size++) {
			int x, y;
			unsigned long i;

			y = memcmp(s1+offset, s2+offset, size);
			x = test_memcmp(s1+offset, s2+offset, size);

			if (((x ^ y) < 0) &&	/* Trick to compare sign */
				((x | y) != 0)) { /* check for zero */
				printf("memcmp returned %d, should have returned %d (offset %ld size %ld)\n", x, y, offset, size);

				for (i = offset; i < offset+size; i++)
					printf("%02x ", s1[i]);
				printf("\n");

				for (i = offset; i < offset+size; i++)
					printf("%02x ", s2[i]);
				printf("\n");
				abort();
			}
		}
	}
}

static int testcase(void)
{
	char *s1;
	char *s2;
	unsigned long i;

	s1 = memalign(128, SIZE);
	if (!s1) {
		perror("memalign");
		exit(1);
	}

	s2 = memalign(128, SIZE);
	if (!s2) {
		perror("memalign");
		exit(1);
	}

	srandom(1);

	for (i = 0; i < ITERATIONS; i++) {
		unsigned long j;
		unsigned long change;

		for (j = 0; j < SIZE; j++)
			s1[j] = random();

		memcpy(s2, s1, SIZE);

		/* change one byte */
		change = random() % SIZE;
		s2[change] = random() & 0xff;

		test_one(s1, s2);
	}

	srandom(1);

	for (i = 0; i < ITERATIONS; i++) {
		unsigned long j;
		unsigned long change;

		for (j = 0; j < SIZE; j++)
			s1[j] = random();

		memcpy(s2, s1, SIZE);

		/* change multiple bytes, 1/8 of total */
		for (j = 0; j < SIZE / 8; j++) {
			change = random() % SIZE;
			s2[change] = random() & 0xff;
		}

		test_one(s1, s2);
	}

	return 0;
}

int main(void)
{
	return test_harness(testcase, "memcmp");
}
/a><a href='/cgit.cgi/linux/net-next.git/tree/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/firewire/tascam/tascam-stream.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/firewire?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>firewire</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/firewire/tascam?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>tascam</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>tascam-stream.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'/><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>Olof Johansson &lt;olof@lixom.net&gt;</td><td class='right'>2017-01-29 21:00:48 -0800</td></tr>
<tr><th>committer</th><td>Olof Johansson &lt;olof@lixom.net&gt;</td><td class='right'>2017-01-29 21:00:48 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>0a019a28e0ca0af7dc2691d1a9527960b07ad2bb</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>5ee1db9aacacd6af6701fb290e8a294ef3cc2bf2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>sound/firewire/tascam/tascam-stream.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/firewire/tascam/tascam-stream.c?id=ec026b5020688a8bde5fae9a69ae3c59b66ba3ae'>ec026b5020688a8bde5fae9a69ae3c59b66ba3ae</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb&amp;id2=ec026b5020688a8bde5fae9a69ae3c59b66ba3ae'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/firewire/tascam/tascam-stream.c?id=8413299cb3933dade6186bbee8363f190032107e'>8413299cb3933dade6186bbee8363f190032107e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/firewire/tascam/tascam-stream.c?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb&amp;id2=8413299cb3933dade6186bbee8363f190032107e'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti into fixes</div><div class='commit-msg'>STi DT fix:

Since v4.10-rc1, xhci is complaining in loop with :
    [  801.953836] usb usb6-port1: Cannot enable. Maybe the USB cable is bad?
    [  801.960455] xhci-hcd xhci-hcd.0.auto: Cannot set link state.
    [  801.966611] usb usb6-port1: cannot disable (err = -32)

set property "snps,dis_u3_susphy_quirk" in DT fix it.

* tag 'sti-dt-for-v4.10-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/pchotard/sti:
  ARM: dts: STiH407-family: set snps,dis_u3_susphy_quirk

Signed-off-by: Olof Johansson &lt;olof@lixom.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=0a019a28e0ca0af7dc2691d1a9527960b07ad2bb'>Diffstat</a> (limited to 'sound/firewire/tascam/tascam-stream.c')</div><table summary='diffstat' class='diffstat'>