From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) (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 37FD023B1 for ; Thu, 21 Apr 2022 20:26:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650572807; x=1682108807; h=date:from:to:cc:subject:message-id:mime-version; bh=27nRDDImcKfHJf1wm1JKTnSBWmB9mhrPHfeNTW1C5QE=; b=TMd0fhnWxA4nAB7f9EAG4wmJWu1PlNSjgnjrrV7XfsCB42zgfRePXGQR bBikQMons1lOYSIC3I07FxSIjQe5nf5zfSMIAR6uIslTBi9DMU0TIKP8T npPqS0hGue/JYPZ40dz7ierDFa38WjS1Q7JcppUQR5sPMXL+7iR2+brTz sEdFINbTB4fO6Giet5vtwEM3oN6uGOlNe2EtnJYlk7/ch9C63lfnCd+GL pLm6NVipBJBDXd0ki83ZL7mGRM3gHLfE58O3Z1XvXE49C8OL21X823qRI TCkpPwomVgMeEjoWrFe03X41QoUqXrJSEfy/7ijTsOcv5tQnBI24FpyD9 w==; X-IronPort-AV: E=McAfee;i="6400,9594,10324"; a="350912176" X-IronPort-AV: E=Sophos;i="5.90,279,1643702400"; d="scan'208";a="350912176" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2022 13:26:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,279,1643702400"; d="scan'208";a="593826722" Received: from lkp-server01.sh.intel.com (HELO 3abc53900bec) ([10.239.97.150]) by orsmga001.jf.intel.com with ESMTP; 21 Apr 2022 13:26:45 -0700 Received: from kbuild by 3abc53900bec with local (Exim 4.95) (envelope-from ) id 1nhdO0-0008lB-D7; Thu, 21 Apr 2022 20:26:44 +0000 Date: Fri, 22 Apr 2022 04:25:44 +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: <202204220415.s2LILw6y-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Peter, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b253435746d9a4a701b5f09211b9c14d3370d0da commit: 1cbdf60bd1b74e397d48aa877367cfc621f45ffe kasan: arm64: support specialized outlined tag mismatch checks date: 11 months ago config: arm64-randconfig-r034-20220421 (https://download.01.org/0day-ci/archive/20220422/202204220415.s2LILw6y-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280) 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 mkdir build_dir && cp config build_dir/.config 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 https://01.org/lkp