From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) (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 DB35617E for ; Sat, 20 Aug 2022 00:14:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660954459; x=1692490459; h=date:from:to:cc:subject:message-id:mime-version; bh=0pkWwH2wSD9gvsHrarqZvzQyvP8hrcdUrMl7gKVgE7U=; b=IH73VpdGKa0jwsjfS3U9VjnG3RGtM2xU2piCi1qc4+Pa2K9JXYUFAY2u 4oGIh2KaBBAf5G1KKIZ/5u5ATWtmvvKPxVMERFHF9Ft1j3pCQbwXrgs99 PWvqZR/cvnFpaQ3gnQGUyWSz7xqzrJMGYy9PE07kDTjCEVvO+iUvsbWIy hc2MW87p3ZBriv8xdxtRx+PJGr4jSPsxXXitBLpSjfSJ1/HCVUAFA/g4v MOLBrFkuvyUDtJXvrSx2HEeR7cCbuTggr3wY5ZBxzSHlZoho7cj1MBrCy 01+ARcWu8UejAbLl4yJIbP3GA5M0vUmDxELDLgGS9yd0NarWPom95nP9w w==; X-IronPort-AV: E=McAfee;i="6500,9779,10444"; a="280093172" X-IronPort-AV: E=Sophos;i="5.93,249,1654585200"; d="scan'208";a="280093172" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2022 17:14:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,249,1654585200"; d="scan'208";a="559119530" Received: from lkp-server01.sh.intel.com (HELO 44b6dac04a33) ([10.239.97.150]) by orsmga003.jf.intel.com with ESMTP; 19 Aug 2022 17:14:16 -0700 Received: from kbuild by 44b6dac04a33 with local (Exim 4.96) (envelope-from ) id 1oPC80-0001wb-0z; Sat, 20 Aug 2022 00:14:16 +0000 Date: Sat, 20 Aug 2022 08:13:49 +0800 From: kernel test robot To: Andi Kleen Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Alexander Shishkin , Kuppuswamy Sathyanarayanan Subject: [intel-tdx:guest-hardening-rebased 11/36] arch/x86/coco/tdx/tdx.c:298:14: warning: no previous prototype for function 'tdx_write_msr' Message-ID: <202208200851.ZfmiszQz-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 arch/x86/coco/tdx/tdx.c tree: https://github.com/intel/tdx.git guest-hardening-rebased head: d941f409a509c084250b50a3b5fc1c3c84a596a0 commit: a9189da9f0413f85d9072894ccb973cf785d2c0d [11/36] x86/tdx: Use direct paravirt call for wrmsrl config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220820/202208200851.ZfmiszQz-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 0ac597f3cacf60479ffd36b03766fa7462dabd78) 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 # https://github.com/intel/tdx/commit/a9189da9f0413f85d9072894ccb973cf785d2c0d git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx guest-hardening-rebased git checkout a9189da9f0413f85d9072894ccb973cf785d2c0d # 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=x86_64 SHELL=/bin/bash arch/x86/coco/tdx/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> arch/x86/coco/tdx/tdx.c:298:14: warning: no previous prototype for function 'tdx_write_msr' [-Wmissing-prototypes] void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high) ^ arch/x86/coco/tdx/tdx.c:298:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high) ^ static 1 warning generated. vim +/tdx_write_msr +298 arch/x86/coco/tdx/tdx.c 297 > 298 void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high) 299 { 300 struct tdx_hypercall_args args = { 301 .r10 = TDX_HYPERCALL_STANDARD, 302 .r11 = hcall_func(EXIT_REASON_MSR_WRITE), 303 .r12 = msr, 304 .r13 = (u64)high << 32 | low, 305 }; 306 307 if (tdx_fast_tdcall_path_msr(msr)) 308 __tdx_hypercall(&args, 0); 309 else 310 native_write_msr(msr, low, high); 311 } 312 -- 0-DAY CI Kernel Test Service https://01.org/lkp