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 E7D26C433EF for ; Wed, 22 Dec 2021 12:19:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236031AbhLVMTr (ORCPT ); Wed, 22 Dec 2021 07:19:47 -0500 Received: from mga03.intel.com ([134.134.136.65]:1689 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229616AbhLVMTq (ORCPT ); Wed, 22 Dec 2021 07:19:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1640175586; x=1671711586; h=date:from:to:cc:subject:message-id:mime-version; bh=IpQcbv20rPvoU2QuAxvuOWNufLhcgT8QLvQICN5SqcI=; b=gs2yHw+SZCfmsGYV0NhebdFV9ZVYISCfPCZAyadhDliBaW12qaxy3Ad0 9/F87QkyvBO6SqC5/rxq7FGdgE2sOvejAlW8IzeupkXrAwtu8/RUWD6Xf BmhZHOBpOVOcsac6vqudcuBLSe8EF5TTBFntJ+aZsMxqVdNzj2QBhqx5Z mYCh/VPwSvOM0n43MJq8BbeeipwPwVR+qR/PvfeeF1LRAeVGZaugPsW0S 6fvV1+ShV6zLlaTZVzBZmrS1Ufidbdjr3Rx7UETzTVIzA1sdPvpg4K0zo mvDDGVYk7ua4EpspSUkrR0DSYkkMFdDbxLkEk+26IVo8NJa9u0Hl3UycT w==; X-IronPort-AV: E=McAfee;i="6200,9189,10205"; a="240559036" X-IronPort-AV: E=Sophos;i="5.88,226,1635231600"; d="scan'208";a="240559036" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Dec 2021 04:19:46 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,226,1635231600"; d="scan'208";a="685004645" Received: from lkp-server01.sh.intel.com (HELO e357b3ef1427) ([10.239.97.150]) by orsmga005.jf.intel.com with ESMTP; 22 Dec 2021 04:19:44 -0800 Received: from kbuild by e357b3ef1427 with local (Exim 4.92) (envelope-from ) id 1n00ar-0000QD-3M; Wed, 22 Dec 2021 12:19:41 +0000 Date: Wed, 22 Dec 2021 20:19:04 +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: <202112222040.WutR6KJ2-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: 2f47a9a4dfa3674fad19a49b40c5103a9a8e1589 commit: 1cbdf60bd1b74e397d48aa877367cfc621f45ffe kasan: arm64: support specialized outlined tag mismatch checks date: 7 months ago config: arm64-randconfig-r023-20211222 (https://download.01.org/0day-ci/archive/20211222/202112222040.WutR6KJ2-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project de4e0195ae1c39f1c3b07834b8e32c113f4f20eb) 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/ 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