From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) (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 E16882CA3 for ; Wed, 26 Jan 2022 18:54:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643223278; x=1674759278; h=date:from:to:cc:subject:message-id:mime-version; bh=1p0cblke1yExFuE7116c1ku2DF+OVoMFfwOVJEjFF1M=; b=MfSMou7ChWpEXDdEblL60DbOoscw/7a9VmuVwC4jbGvrrCGXW03ca7Al Up8tkiQkqXM83n9r7EM9ORynFYvan70x1nl10EJwISEl8I7FYMeYK//fI ZJj/fPML5GWP6FNuEz2kNnGcReeQqrzziVxVAOE3Mi4byMql8nuFAK4Nb BDDMr5ogSsjstaWJcynFiXbKO1QnXVZbfvS8bWFPIOav8LkDuK2DL/MkW vxDF8g7+1dG6W2Sd5GxVJzZ0n9CB025cGHBBNK4CvmUfO7t3zXdNoacbC swqiaZPiKSiS0OJ7jIs7vDRjZOYF153HIj1Ty6/OXNXPjDBIXtaWd+4Mu Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10238"; a="309936327" X-IronPort-AV: E=Sophos;i="5.88,318,1635231600"; d="scan'208";a="309936327" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2022 10:53:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,318,1635231600"; d="scan'208";a="628397799" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 26 Jan 2022 10:53:10 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nCnPp-000LWg-NG; Wed, 26 Jan 2022 18:53:09 +0000 Date: Thu, 27 Jan 2022 02:52:17 +0800 From: kernel test robot To: Kai Huang Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [intel-tdx:host-upstream 7/18] arch/x86/kernel/cpu/tdx/tdx.c:148:30: warning: variable 'err' is uninitialized when used within its own initialization Message-ID: <202201270252.bK9LlDe7-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 User-Agent: Mutt/1.10.1 (2018-07-13) tree: https://github.com/intel/tdx.git host-upstream head: 6806a9874cdac7e51e15c056986098bf94a062aa commit: b9feae73d1b45e81a7d573531ee2e594ccea51b5 [7/18] x86/cpu: Do logical cpu level TDX module initialization config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20220127/202201270252.bK9LlDe7-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2a1b7aa016c0f4b5598806205bdfbab1ea2d92c4) 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/b9feae73d1b45e81a7d573531ee2e594ccea51b5 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx host-upstream git checkout b9feae73d1b45e81a7d573531ee2e594ccea51b5 # 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=x86_64 SHELL=/bin/bash arch/x86/kernel/cpu/tdx/ 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/tdx/tdx.c:148:30: warning: variable 'err' is uninitialized when used within its own initialization [-Wuninitialized] atomic_t *err = (atomic_t *)err; ~~~ ^~~ 1 warning generated. vim +/err +148 arch/x86/kernel/cpu/tdx/tdx.c 144 145 /* SMP call function to run TDH.SYS.LP.INIT */ 146 static void smp_call_tdx_cpu_init(void *data) 147 { > 148 atomic_t *err = (atomic_t *)err; 149 150 if (tdh_sys_lp_init()) 151 atomic_set(err, -1); 152 } 153 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org