Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Deming Wang <wangdeming@inspur.com>
To:     <akpm@linux-foundation.org>, <shuah@kernel.org>
CC:     <linux-mm@kvack.org>, <linux-kselftest@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, Deming Wang <wangdeming@inspur.com>
Subject: [PATCH] selftests/mm: Replace obsolete memalign() with posix_memalign()
Date:   Wed, 12 Apr 2023 03:27:41 -0400
Message-ID: <20230412072741.2116-1-wangdeming@inspur.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 7BIT
Content-Type:   text/plain; charset=US-ASCII
tUid:   202341215274548ec1c667233f2549d7fa375c53b6f05
Abuse-Reports-To: service@corp-email.com
Precedence: bulk

memalign() is obsolete according to its manpage.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@inspur.com>
---
 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