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

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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: Yury 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yury Norov 2017-09-08 16:15:38 -07:00 committed by Linus Torvalds
parent 0a5ce0831d
commit 6df0d464db
1 changed files with 74 additions and 0 deletions
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74
lib/test_bitmap.c
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@ -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)