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lib/test_bitmap.c: add bitmap_zero()/bitmap_clear() test cases 

Explicitly test bitmap_zero() and bitmap_clear() functions.

Link: http://lkml.kernel.org/r/20180109172430.87452-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Yury Norov <ynorov@caviumnetworks.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2018-02-06 15:38:10 -08:00 committed by Linus Torvalds
parent 3aa56885e5
commit ee3527bd5e
1 changed files with 30 additions and 0 deletions
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30
lib/test_bitmap.c
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@ -105,6 +105,35 @@ __check_eq_u32_array(const char *srcfile, unsigned int line,
#define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__)
#define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__)
static void __init test_zero_clear(void)
{
DECLARE_BITMAP(bmap, 1024);
/* Known way to set all bits */
memset(bmap, 0xff, 128);
expect_eq_pbl("0-22", bmap, 23);
expect_eq_pbl("0-1023", bmap, 1024);
/* single-word bitmaps */
bitmap_clear(bmap, 0, 9);
expect_eq_pbl("9-1023", bmap, 1024);
bitmap_zero(bmap, 35);
expect_eq_pbl("64-1023", bmap, 1024);
/* cross boundaries operations */
bitmap_clear(bmap, 79, 19);
expect_eq_pbl("64-78,98-1023", bmap, 1024);
bitmap_zero(bmap, 115);
expect_eq_pbl("128-1023", bmap, 1024);
/* Zeroing entire area */
bitmap_zero(bmap, 1024);
expect_eq_pbl("", bmap, 1024);
}
static void __init test_zero_fill_copy(void)
{
DECLARE_BITMAP(bmap1, 1024);
@ -309,6 +338,7 @@ static void noinline __init test_mem_optimisations(void)
static int __init test_bitmap_init(void)
{
test_zero_clear();
test_zero_fill_copy();
test_bitmap_arr32();
test_bitmap_parselist();