Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6df0d464 authored by Yury Norov's avatar Yury Norov Committed by Linus Torvalds
Browse files

lib/test_bitmap.c: add test for bitmap_parselist() 

Do some basic checks for bitmap_parselist().

[akpm@linux-foundation.org: fix printk warning]
Link: http://lkml.kernel.org/r/20170807225438.16161-2-ynorov@caviumnetworks.com


Signed-off-by: default avatarYury Norov <ynorov@caviumnetworks.com>
Cc: Noam Camus <noamca@mellanox.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0a5ce083

lib/test_bitmap.c

+74 −0
Original line number Diff line number Diff line
@@ -165,6 +165,79 @@ static void __init test_zero_fill_copy(void) 
	expect_eq_pbl("128-1023", bmap2, 1024);

}



#define PARSE_TIME 0x1



struct test_bitmap_parselist{

	const int errno;

	const char *in;

	const unsigned long *expected;

	const int nbits;

	const int flags;

};



static const unsigned long exp[] = {1, 2, 0x0000ffff, 0xffff0000, 0x55555555,

				0xaaaaaaaa, 0x11111111, 0x22222222, 0xffffffff,

				0xfffffffe, 0x3333333311111111, 0xffffffff77777777};

static const unsigned long exp2[] = {0x3333333311111111, 0xffffffff77777777};



static const struct test_bitmap_parselist parselist_tests[] __initconst = {

	{0, "0",			&exp[0], 8, 0},

	{0, "1",			&exp[1], 8, 0},

	{0, "0-15",			&exp[2], 32, 0},

	{0, "16-31",			&exp[3], 32, 0},

	{0, "0-31:1/2",			&exp[4], 32, 0},

	{0, "1-31:1/2",			&exp[5], 32, 0},

	{0, "0-31:1/4",			&exp[6], 32, 0},

	{0, "1-31:1/4",			&exp[7], 32, 0},

	{0, "0-31:4/4",			&exp[8], 32, 0},

	{0, "1-31:4/4",			&exp[9], 32, 0},

	{0, "0-31:1/4,32-63:2/4",	&exp[10], 64, 0},

	{0, "0-31:3/4,32-63:4/4",	&exp[11], 64, 0},



	{0, "0-31:1/4,32-63:2/4,64-95:3/4,96-127:4/4",	exp2, 128, 0},



	{0, "0-2047:128/256", NULL, 2048, PARSE_TIME},



	{-EINVAL, "-1",	NULL, 8, 0},

	{-EINVAL, "-0",	NULL, 8, 0},

	{-EINVAL, "10-1", NULL, 8, 0},

	{-EINVAL, "0-31:10/1", NULL, 8, 0},

};



static void __init test_bitmap_parselist(void)

{

	int i;

	int err;

	cycles_t cycles;

	DECLARE_BITMAP(bmap, 2048);



	for (i = 0; i < ARRAY_SIZE(parselist_tests); i++) {

#define ptest parselist_tests[i]



		cycles = get_cycles();

		err = bitmap_parselist(ptest.in, bmap, ptest.nbits);

		cycles = get_cycles() - cycles;



		if (err != ptest.errno) {

			pr_err("test %d: input is %s, errno is %d, expected %d\n",

					i, ptest.in, err, ptest.errno);

			continue;

		}



		if (!err && ptest.expected

			 && !__bitmap_equal(bmap, ptest.expected, ptest.nbits)) {

			pr_err("test %d: input is %s, result is 0x%lx, expected 0x%lx\n",

					i, ptest.in, bmap[0], *ptest.expected);

			continue;

		}



		if (ptest.flags & PARSE_TIME)

			pr_err("test %d: input is '%s' OK, Time: %llu\n",

					i, ptest.in,

					(unsigned long long)cycles);

	}

}



static void __init test_bitmap_u32_array_conversions(void)

{

	DECLARE_BITMAP(bmap1, 1024);
@@ -365,6 +438,7 @@ static int __init test_bitmap_init(void) 
{

	test_zero_fill_copy();

	test_bitmap_u32_array_conversions();

	test_bitmap_parselist();

	test_mem_optimisations();



	if (failed_tests == 0)