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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2020-04-06 20:10:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 10:43:43 -0700
commitcaa7f776ccd3067ddea1f36d92662cee7608f141 (patch)
treeb7569f17058d950a059f1413ee61f5c1b9430a05 /lib
parentpercpu_counter: fix a data race at vm_committed_as (diff)
downloadlinux-dev-caa7f776ccd3067ddea1f36d92662cee7608f141.tar.xz
linux-dev-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>
Diffstat (limited to 'lib')
-rw-r--r--lib/test_bitmap.c2
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);