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-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);