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 70984C433EF for ; Wed, 9 Mar 2022 10:27:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230062AbiCIK2F (ORCPT ); Wed, 9 Mar 2022 05:28:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229895AbiCIK2E (ORCPT ); Wed, 9 Mar 2022 05:28:04 -0500 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54A78156C69 for ; Wed, 9 Mar 2022 02:27:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646821625; x=1678357625; h=date:from:to:cc:subject:message-id:mime-version; bh=1RtcjiPKars0DUovoo5BiTa0g/dRvTO5f8Y5QaVXTDA=; b=DZei64nOxFAn8JF/yCa9ycr1TzYKcCr0p9sDo2Jy5VZqZ4UHidLWKwIP aAWTTrlaG5LlMdvh+8JJkNh7rCrV37lsuhZ2R/kX24oAOcrz/LVpYUzs+ ijmzzYBP1olTAZtGNnwBr5RXw4ElvhcbMRZeo3ZVQlznA++Y+AEyqfIPI XfFLwmaT2hHlabIZ8yFgIU9fZHygfD2QmIKObux4KxiqyDr8gYKa8zfKC 0lzPd10XfWSpDPa7wQlckraVWF5+pMl8sJ3PwdzpYofh8gfN0TrtaxZGr 11uDipJTGiOvVKAYn25+tv97c+rSvzTwbne2r3F0m8W9uxtg0d7QzvgSB g==; X-IronPort-AV: E=McAfee;i="6200,9189,10280"; a="341371223" X-IronPort-AV: E=Sophos;i="5.90,167,1643702400"; d="scan'208";a="341371223" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2022 02:27:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,167,1643702400"; d="scan'208";a="711894688" Received: from lkp-server02.sh.intel.com (HELO 89b41b6ae01c) ([10.239.97.151]) by orsmga005.jf.intel.com with ESMTP; 09 Mar 2022 02:27:03 -0800 Received: from kbuild by 89b41b6ae01c with local (Exim 4.92) (envelope-from ) id 1nRtX5-00035Z-1m; Wed, 09 Mar 2022 10:27:03 +0000 Date: Wed, 9 Mar 2022 18:26:26 +0800 From: kernel test robot To: Isaku Yamahata Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Chenyi Qiang Subject: [intel-tdx:kvm 24/193] arch/x86/kernel/cpu/tsx.c:186:5: warning: no previous prototype for 'tsx_ctrl_clear' Message-ID: <202203091850.dfwae6UT-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 tree: https://github.com/intel/tdx.git kvm head: 7a7d51d52f45bbd82e264c7f940d74491305f5ce commit: 2c9aac7eef8430d99ae51f243da09dd7892dc9cd [24/193] x86/cpu/tsx: Add helper functions to save/restore IA32_TSX_CTRL MSR config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220309/202203091850.dfwae6UT-lkp@intel.com/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/intel/tdx/commit/2c9aac7eef8430d99ae51f243da09dd7892dc9cd git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm git checkout 2c9aac7eef8430d99ae51f243da09dd7892dc9cd # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kernel/cpu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> arch/x86/kernel/cpu/tsx.c:186:5: warning: no previous prototype for 'tsx_ctrl_clear' [-Wmissing-prototypes] 186 | u64 tsx_ctrl_clear(void) | ^~~~~~~~~~~~~~ >> arch/x86/kernel/cpu/tsx.c:199:6: warning: no previous prototype for 'tsx_ctrl_restore' [-Wmissing-prototypes] 199 | void tsx_ctrl_restore(u64 tsx_ctrl) | ^~~~~~~~~~~~~~~~ vim +/tsx_ctrl_clear +186 arch/x86/kernel/cpu/tsx.c 184 185 /* Clear the MSR_TSX_CTRL and return the old value if supported */ > 186 u64 tsx_ctrl_clear(void) 187 { 188 u64 tsx_ctrl = 0; 189 190 if (ia32_tsx_ctrl_supported) { 191 rdmsrl(MSR_IA32_TSX_CTRL, tsx_ctrl); 192 if (tsx_ctrl & MSR_TSX_CTRL_MASK) 193 wrmsrl(MSR_IA32_TSX_CTRL, tsx_ctrl & ~MSR_TSX_CTRL_MASK); 194 } 195 return tsx_ctrl; 196 } 197 EXPORT_SYMBOL_GPL(tsx_ctrl_clear); 198 > 199 void tsx_ctrl_restore(u64 tsx_ctrl) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org