From patchwork Thu Jul 18 03:10:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiapeng Chong X-Patchwork-Id: 13735976 Received: from out30-118.freemail.mail.aliyun.com (out30-118.freemail.mail.aliyun.com [115.124.30.118]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E3E0518EBF; Thu, 18 Jul 2024 03:10:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.118 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721272265; cv=none; b=ASOwA3DKpaBPAU+YvdwFMwAXdmtvs02i+MiI4zrMPd/6A/fd+tamWX53U88L8dzSUGG52Sd5mccuaCcHgv0lA7abPneFZt3K/kmiN0etkjuPK08NS9O1otcylRv/hxCbmZsNr6b29wIZn2PLw9/4flQgbU5rz/kYAdhAZ1G/cmg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721272265; c=relaxed/simple; bh=pD2xubbTa4c6T4WNzg1CAB+MEyajjEmWSQtRqNVNtnE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=WgaoRdFAbacWjT3oUrUh1GzCNp8KBn/GJUYiamN+PuGHlchP+W7PWAWzYgAxcz+D5qPu7fxRMp3G+Jw7/Ufb6AyY9MTpv08EkGBD+XAH4f4WGzGCrgsry6YZvV7cZ3mwSmdyaal0Ohq5BU7JnFILhtsMxirN/4iaHyz2Dhi3K58= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=nE/UNPqc; arc=none smtp.client-ip=115.124.30.118 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="nE/UNPqc" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1721272252; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=tgQJsXXJZtuIafpHz+x3BoFD/+zTuz5fz+02sw/hJ+s=; b=nE/UNPqcycmdXT0rTg5+4+pY9uCjw7ilYuhx3shAHDYBWjbnDBr3Z9bW9UdG43r6yATJ/bBzhcPITyPT9HlFQ+5IHuGHPOaHs2AAiFtYJgQ/PCIoRcc4CdmHcQSE59LKYBHF8X0sJwqUi4N7npmuE0m18tghrb5LaerzZesvfRo= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037067111;MF=jiapeng.chong@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0WAmhdTk_1721272240; Received: from localhost(mailfrom:jiapeng.chong@linux.alibaba.com fp:SMTPD_---0WAmhdTk_1721272240) by smtp.aliyun-inc.com; Thu, 18 Jul 2024 11:10:52 +0800 From: Jiapeng Chong To: akpm@linux-foundation.org Cc: shuah@kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Jiapeng Chong , Abaci Robot Subject: [PATCH -next] selftests/mm: mseal, self_elf: Fix warning comparing pointer to 0 Date: Thu, 18 Jul 2024 11:10:39 +0800 Message-Id: <20240718031039.69861-1-jiapeng.chong@linux.alibaba.com> X-Mailer: git-send-email 2.32.0.3.g01195cf9f Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Avoid pointer type value compared with 0 to make code clear. ./tools/testing/selftests/mm/mseal_test.c:486:27-28: WARNING comparing pointer to 0. ./tools/testing/selftests/mm/mseal_test.c:1399:29-30: WARNING comparing pointer to 0. Reported-by: Abaci Robot Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9552 Signed-off-by: Jiapeng Chong --- tools/testing/selftests/mm/mseal_test.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c index a818f010de47..50a5b9b9399e 100644 --- a/tools/testing/selftests/mm/mseal_test.c +++ b/tools/testing/selftests/mm/mseal_test.c @@ -481,9 +481,8 @@ static void test_seal_zero_address(void) int prot; /* use mmap to change protection. */ - ptr = sys_mmap(0, size, PROT_NONE, - MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0); - FAIL_TEST_IF_FALSE(ptr == 0); + ptr = sys_mmap(0, size, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0); + FAIL_TEST_IF_FALSE(!ptr); size = get_vma_size(ptr, &prot); FAIL_TEST_IF_FALSE(size == 4 * page_size); @@ -1390,13 +1389,12 @@ static void test_seal_mremap_move_fixed_zero(bool seal) /* * MREMAP_FIXED can move the mapping to zero address */ - ret2 = mremap(ptr, size, 2 * page_size, MREMAP_MAYMOVE | MREMAP_FIXED, - 0); + ret2 = mremap(ptr, size, 2 * page_size, MREMAP_MAYMOVE | MREMAP_FIXED, 0); if (seal) { FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED); FAIL_TEST_IF_FALSE(errno == EPERM); } else { - FAIL_TEST_IF_FALSE(ret2 == 0); + FAIL_TEST_IF_FALSE(!ret2); }