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 15E5CC433F5 for ; Fri, 7 Jan 2022 09:00:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346307AbiAGJAu (ORCPT ); Fri, 7 Jan 2022 04:00:50 -0500 Received: from mga05.intel.com ([192.55.52.43]:19632 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236362AbiAGJAs (ORCPT ); Fri, 7 Jan 2022 04:00:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1641546048; x=1673082048; h=date:from:to:cc:subject:message-id:mime-version; bh=j7A4O0UTzUY86Hb7QTpTewvFDFLlSiE7gOqw7j3u7a8=; b=dWjtre8k2iTEpbdqPhucpmK9fEYHe2IE411Iaarot2jFNuistW8p4Ccv DjXA7h1g1UdPAAjMAVr0vzR9ruXR0S8P85FTgmGAxTrrbSFuAzp+hSQ+Q m8aWuAlE7RxLX0dggN0KExLJ/4MvXUTwzDcyg4fMqqbxPP8VtXjgHyLJD kmwg73BPScf+ODhAyoHiv/NrvBJmWTE130P0BNHUAioSiDPckhxkrjit5 REFi3KB/N20TbFsqKHtpkgVvHPG6/IH5TyGHxKgN3PriVkR2ECMoF2B6S Ccb366cQdWQEH/jcciKEuwClDyR01MDZQfdYjB47rdveqyUVaChT8dsTD w==; X-IronPort-AV: E=McAfee;i="6200,9189,10219"; a="329179243" X-IronPort-AV: E=Sophos;i="5.88,269,1635231600"; d="scan'208";a="329179243" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jan 2022 01:00:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,269,1635231600"; d="scan'208";a="612131053" Received: from lkp-server01.sh.intel.com (HELO e357b3ef1427) ([10.239.97.150]) by FMSMGA003.fm.intel.com with ESMTP; 07 Jan 2022 01:00:46 -0800 Received: from kbuild by e357b3ef1427 with local (Exim 4.92) (envelope-from ) id 1n5l77-000ITc-Pn; Fri, 07 Jan 2022 09:00:45 +0000 Date: Fri, 7 Jan 2022 17:00:23 +0800 From: kernel test robot To: Peter Collingbourne Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Will Deacon , Mark Rutland Subject: mm/kasan/sw_tags.c:211:6: warning: no previous prototype for function 'kasan_tag_mismatch' Message-ID: <202201071631.N1iQYfX7-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Peter, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ddec8ed2d4905d0967ce2ec432e440e582aa52c6 commit: 1cbdf60bd1b74e397d48aa877367cfc621f45ffe kasan: arm64: support specialized outlined tag mismatch checks date: 8 months ago config: arm64-randconfig-r021-20220107 (https://download.01.org/0day-ci/archive/20220107/202201071631.N1iQYfX7-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 32167bfe64a4c5dd4eb3f7a58e24f4cba76f5ac2) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cbdf60bd1b74e397d48aa877367cfc621f45ffe git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 1cbdf60bd1b74e397d48aa877367cfc621f45ffe # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash mm/kasan/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> mm/kasan/sw_tags.c:211:6: warning: no previous prototype for function 'kasan_tag_mismatch' [-Wmissing-prototypes] void kasan_tag_mismatch(unsigned long addr, unsigned long access_info, ^ mm/kasan/sw_tags.c:211:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void kasan_tag_mismatch(unsigned long addr, unsigned long access_info, ^ static 1 warning generated. vim +/kasan_tag_mismatch +211 mm/kasan/sw_tags.c 210 > 211 void kasan_tag_mismatch(unsigned long addr, unsigned long access_info, --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org