diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-02-06 15:38:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-06 18:32:44 -0800 |
| commit | ee3527bd5e48e6c892abfdcb36969c1eb2fd4a6e (patch) | |
| tree | cf77fc12d2ee68da5b89e0af9d6423e0a7d42cb2 /lib | |
| parent | 3aa56885e51683a19c8aa71739fd279b3f501cd7 (diff) | |
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>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/test_bitmap.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index de7ef2996a07..9734af711816 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -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(); |