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

Commit ee3527bd authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Linus Torvalds
Browse files

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: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: default avatarYury Norov <ynorov@caviumnetworks.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3aa56885

lib/test_bitmap.c

+30 −0
Original line number Diff line number Diff line
@@ -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();