memalign() is obsolete according to its manpage. Replace memalign() with posix_memalign() and remove malloc.h include that was there for memalign(). As a pointer is passed into posix_memalign(), initialize *p to NULL to silence a warning about the function's return value being used as uninitialized (which is not valid anyway because the error is properly checked before p is returned). Signed-off-by: Deming Wang <wangdeming@xxxxxxxxxx> --- tools/testing/selftests/mm/soft-dirty.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/mm/soft-dirty.c b/tools/testing/selftests/mm/soft-dirty.c index 21d8830c5f24..4bb7421141a2 100644 --- a/tools/testing/selftests/mm/soft-dirty.c +++ b/tools/testing/selftests/mm/soft-dirty.c @@ -80,8 +80,8 @@ static void test_hugepage(int pagemap_fd, int pagesize) int i, ret; size_t hpage_len = read_pmd_pagesize(); - map = memalign(hpage_len, hpage_len); - if (!map) + ret = posix_memalign((void *)(&map), hpage_len, hpage_len); + if (ret < 0) ksft_exit_fail_msg("memalign failed\n"); ret = madvise(map, hpage_len, MADV_HUGEPAGE); -- 2.27.0