From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (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 2129A7A for ; Fri, 22 Apr 2022 20:39:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1650659956; x=1682195956; h=date:from:to:cc:subject:message-id:mime-version; bh=yvEmm3q5zs9POqKdsIu+eEbpwdiEBwUZG5UoQU3is80=; b=ZpqieZnPaunMLJhSJ4XF5ELYRsTFAPYufVxBmew80DZ8HgUOqIZ1EZFO SAo2Rbn7yL23z/ecWJmxtlqClSs2gLyhf6wk+rmEzJFB7kbBmWRSCv8wj jVK0czQEdoL8SuMDywIpAOouakFlr93DBiC+sqsPZMbUlrehIc4TEsY5x P6YFm6fCzQ1NlwfbIZwOajMnihmYmES2eoUSEZERs2ODSn1Y47o/sSgk+ VOjln4L8D3oo7VuywLPpnlrlSpi/ZlyW0H5VXa42nK7vgnzft5VHLXADf 9uvYrqBhX5wtBTIAWLdb1xYgB98+9AFciLa0m1IwY1+SOy9ZDm3emWJCo A==; X-IronPort-AV: E=McAfee;i="6400,9594,10324"; a="246685904" X-IronPort-AV: E=Sophos;i="5.90,282,1643702400"; d="scan'208";a="246685904" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2022 13:39:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,282,1643702400"; d="scan'208";a="511729153" Received: from lkp-server01.sh.intel.com (HELO 3abc53900bec) ([10.239.97.150]) by orsmga003.jf.intel.com with ESMTP; 22 Apr 2022 13:39:12 -0700 Received: from kbuild by 3abc53900bec with local (Exim 4.95) (envelope-from ) id 1ni03c-000AZO-08; Fri, 22 Apr 2022 20:39:12 +0000 Date: Sat, 23 Apr 2022 04:38:51 +0800 From: kernel test robot To: Matteo Croce Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Emil Renner Berthing Subject: [esmil:visionfive 4/54] mm/kasan/shadow.c:42:7: warning: no previous prototype for function 'memset' Message-ID: <202204230424.eOU8iNAQ-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 tree: https://github.com/esmil/linux visionfive head: 68fe13e37af4c8331cdd40841353c9725cb65925 commit: 20157c7f08403f9a7cbaef427717ce571387416c [4/54] riscv: optimized memset config: riscv-randconfig-c006-20220422 (https://download.01.org/0day-ci/archive/20220423/202204230424.eOU8iNAQ-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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/esmil/linux/commit/20157c7f08403f9a7cbaef427717ce571387416c git remote add esmil https://github.com/esmil/linux git fetch --no-tags esmil visionfive git checkout 20157c7f08403f9a7cbaef427717ce571387416c # 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=riscv 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/shadow.c:42:7: warning: no previous prototype for function 'memset' [-Wmissing-prototypes] void *memset(void *addr, int c, size_t len) ^ mm/kasan/shadow.c:42:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void *memset(void *addr, int c, size_t len) ^ static mm/kasan/shadow.c:63:7: warning: no previous prototype for function 'memcpy' [-Wmissing-prototypes] void *memcpy(void *dest, const void *src, size_t len) ^ mm/kasan/shadow.c:63:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void *memcpy(void *dest, const void *src, size_t len) ^ static 2 warnings generated. vim +/memset +42 mm/kasan/shadow.c bb359dbcb70085 Andrey Konovalov 2020-12-22 40 bb359dbcb70085 Andrey Konovalov 2020-12-22 41 #undef memset bb359dbcb70085 Andrey Konovalov 2020-12-22 @42 void *memset(void *addr, int c, size_t len) bb359dbcb70085 Andrey Konovalov 2020-12-22 43 { f00748bfa0246c Andrey Konovalov 2021-02-24 44 if (!kasan_check_range((unsigned long)addr, len, true, _RET_IP_)) bb359dbcb70085 Andrey Konovalov 2020-12-22 45 return NULL; bb359dbcb70085 Andrey Konovalov 2020-12-22 46 bb359dbcb70085 Andrey Konovalov 2020-12-22 47 return __memset(addr, c, len); bb359dbcb70085 Andrey Konovalov 2020-12-22 48 } bb359dbcb70085 Andrey Konovalov 2020-12-22 49 :::::: The code at line 42 was first introduced by commit :::::: bb359dbcb70085a63e8bdbf14837a900750f0cf7 kasan: split out shadow.c from common.c :::::: TO: Andrey Konovalov :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://01.org/lkp