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However, the usual x & (x - 1) check also evaluates to zero when x is zero, causing a missing alignment to be reported as a power of two. Require the alignment to be non-zero when reporting the power-of-two result. Fixes: b57a2907c9d9 ("selftests/exec: Build both static and non-static load_address tests") Signed-off-by: Paul Dolan --- tools/testing/selftests/exec/load_address.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/exec/load_address.c b/tools/testing/selftests/exec/load_address.c index 55fd3732f029..e279d85e8f19 100644 --- a/tools/testing/selftests/exec/load_address.c +++ b/tools/testing/selftests/exec/load_address.c @@ -92,9 +92,10 @@ int main(int argc, char **argv) /* Is the alignment sane? */ pow2 = extracted.alignment & (extracted.alignment - 1); - ksft_test_result(pow2 == 0, - "Alignment is%s a power of 2: %#llx\n", - pow2 == 0 ? "" : " NOT", extracted.alignment); + ksft_test_result(extracted.alignment != 0 && pow2 == 0, + "Alignment is%s a power of 2: %#llx\n", + extracted.alignment != 0 && pow2 == 0 ? "" : " NOT", + extracted.alignment); /* Is the load address aligned? */ misalign = extracted.load_address & (extracted.alignment - 1); -- 2.55.0