diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-04-07 05:10:28 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-07 19:43:43 +0200 |
| commit | caa7f776ccd3067ddea1f36d92662cee7608f141 (patch) | |
| tree | b7569f17058d950a059f1413ee61f5c1b9430a05 | |
| parent | percpu_counter: fix a data race at vm_committed_as (diff) | |
| download | linux-caa7f776ccd3067ddea1f36d92662cee7608f141.tar.xz linux-caa7f776ccd3067ddea1f36d92662cee7608f141.zip | |
lib/test_bitmap.c: make use of EXP2_IN_BITS
Commit 30544ed5de43 ("lib/bitmap: introduce bitmap_replace() helper")
introduced some new test cases to the test_bitmap.c module. Among these
it also introduced an (unused) definition. Let's make use of
EXP2_IN_BITS.
Reported-by: Alex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Alex Shi <alex.shi@linux.alibaba.com>
Link: http://lkml.kernel.org/r/20200121151847.75223-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | lib/test_bitmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index 61ed71c1daba..6b13150667f5 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -278,6 +278,8 @@ static void __init test_replace(void) unsigned int nlongs = DIV_ROUND_UP(nbits, BITS_PER_LONG); DECLARE_BITMAP(bmap, 1024); + BUILD_BUG_ON(EXP2_IN_BITS < nbits * 2); + bitmap_zero(bmap, 1024); bitmap_replace(bmap, &exp2[0 * nlongs], &exp2[1 * nlongs], exp2_to_exp3_mask, nbits); expect_eq_bitmap(bmap, exp3_0_1, nbits); |