From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ABE47C7EE23 for ; Mon, 5 Jun 2023 22:44:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232106AbjFEWom (ORCPT ); Mon, 5 Jun 2023 18:44:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231929AbjFEWog (ORCPT ); Mon, 5 Jun 2023 18:44:36 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 721CEF9 for ; Mon, 5 Jun 2023 15:44:35 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E5D8A61DE1 for ; Mon, 5 Jun 2023 22:44:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4074FC433D2; Mon, 5 Jun 2023 22:44:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1686005074; bh=jmNoH9demQGz2mJ80y+GpzF7EFacYfSgAsx/hKleNS8=; h=Date:To:From:Subject:From; b=jV80Fts56v1bfTRRTenrEQPsLiGc+nBBunavhryu4L7PojTGU+qT+7opeASlaS6Pl AszoSeY8wGOlZPBSqBEEPBOkii3kToMplll/rOjOMt0HO59AcfkUxORHh/zBF/+GUl rqQVxe2poNi2JOYpA2PPCJEMtnaDgphTopTl/AAM= Date: Mon, 05 Jun 2023 15:44:33 -0700 To: mm-commits@vger.kernel.org, usama.anjum@collabora.com, shuah@kernel.org, peterx@redhat.com, nathan@kernel.org, david@redhat.com, corbet@lwn.net, jhubbard@nvidia.com, akpm@linux-foundation.org From: Andrew Morton Subject: + selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch added to mm-unstable branch Message-Id: <20230605224434.4074FC433D2@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: selftests/mm: fix "warning: expression which evaluates to zero..." in mlock2-tests.c has been added to the -mm mm-unstable branch. Its filename is selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: John Hubbard Subject: selftests/mm: fix "warning: expression which evaluates to zero..." in mlock2-tests.c Date: Fri, 2 Jun 2023 19:15:50 -0700 The stop variable is a char*, and the code was assigning a char value to it. This was generating a warning when compiling with clang. However, as both David and Peter pointed out, stop is not even used after the problematic assignment to a char type. So just delete that line entirely. Link: https://lkml.kernel.org/r/20230603021558.95299-4-jhubbard@nvidia.com Signed-off-by: John Hubbard Reviewed-by: David Hildenbrand Cc: Peter Xu Cc: Jonathan Corbet Cc: Muhammad Usama Anjum Cc: Nathan Chancellor Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/mlock2-tests.c | 1 - 1 file changed, 1 deletion(-) --- a/tools/testing/selftests/mm/mlock2-tests.c~selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc +++ a/tools/testing/selftests/mm/mlock2-tests.c @@ -50,7 +50,6 @@ static int get_vm_area(unsigned long add printf("cannot parse /proc/self/maps\n"); goto out; } - stop = '\0'; sscanf(line, "%lx", &start); sscanf(end_addr, "%lx", &end); _ Patches currently in -mm which might be from jhubbard@nvidia.com are selftests-mm-fix-uffd-stress-unused-function-warning.patch selftests-mm-fix-unused-variable-warnings-in-hugetlb-madvisec-migrationc.patch selftests-mm-fix-warning-expression-which-evaluates-to-zero-in-mlock2-testsc.patch selftests-mm-fix-invocation-of-tests-that-are-run-via-shell-scripts.patch selftests-mm-gitignore-add-mkdirty-va_high_addr_switch.patch selftests-mm-fix-two-wformat-security-warnings-in-uffd-builds.patch selftests-mm-fix-a-possibly-uninitialized-warning-in-pkey-x86h.patch selftests-mm-fix-uffd-unit-testsc-build-failure-due-to-missing-madv_collapse.patch selftests-mm-move-psize-pshift-into-vm_utilsc.patch selftests-mm-move-uffd-routines-from-vm_utilc-to-uffd-commonc.patch documentation-kselftest-make-headers-is-a-prerequisite.patch selftests-error-out-if-kernel-header-files-are-not-yet-built.patch