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 X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A99D1C4320A for ; Wed, 1 Sep 2021 11:18:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8ABD96101B for ; Wed, 1 Sep 2021 11:18:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238683AbhIALT0 (ORCPT ); Wed, 1 Sep 2021 07:19:26 -0400 Received: from mga01.intel.com ([192.55.52.88]:30490 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239191AbhIALTT (ORCPT ); Wed, 1 Sep 2021 07:19:19 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10093"; a="240988251" X-IronPort-AV: E=Sophos;i="5.84,369,1620716400"; d="scan'208";a="240988251" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 04:18:22 -0700 X-IronPort-AV: E=Sophos;i="5.84,369,1620716400"; d="scan'208";a="498795819" Received: from smile.fi.intel.com (HELO smile) ([10.237.68.40]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2021 04:18:20 -0700 Received: from andy by smile with local (Exim 4.95-RC2) (envelope-from ) id 1mLOG1-00GLXp-8T; Wed, 01 Sep 2021 14:18:17 +0300 Date: Wed, 1 Sep 2021 14:18:17 +0300 From: Andy Shevchenko To: kernel test robot Cc: Giovanni Cabiddu , llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Herbert Xu , Fiona Trahe , Wojciech Ziemba Subject: Re: drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value Message-ID: References: <202109010001.5r11IRSX-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202109010001.5r11IRSX-lkp@intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 01, 2021 at 12:19:08AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: b91db6a0b52e019b6bdabea3f1dbe36d85c7e52c > commit: f9c697c4bfc6002d92e8015b65fe2a79acadb416 crypto: qat - split transport CSR access logic > date: 10 months ago > config: i386-randconfig-r012-20210831 (attached as .config) > compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4b1fde8a2b681dad2ce0c082a5d6422caa06b0bc) > 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f9c697c4bfc6002d92e8015b65fe2a79acadb416 > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout f9c697c4bfc6002d92e8015b65fe2a79acadb416 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot > > All warnings (new ones prefixed by >>): > > clang-14: warning: optimization flag '-falign-jumps=0' is not supported [-Wignored-optimization-argument] > In file included from drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:3: > In file included from drivers/crypto/qat/qat_c62xvf/../qat_common/adf_accel_devices.h:5: > In file included from include/linux/interrupt.h:11: > In file included from include/linux/hardirq.h:5: > In file included from include/linux/context_tracking_state.h:5: > In file included from include/linux/percpu.h:6: > In file included from include/linux/preempt.h:78: > In file included from arch/x86/include/asm/preempt.h:7: > In file included from include/linux/thread_info.h:38: > arch/x86/include/asm/thread_info.h:183:13: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] > oldframe = __builtin_frame_address(1); > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > arch/x86/include/asm/thread_info.h:185:11: warning: calling '__builtin_frame_address' with a nonzero argument is unsafe [-Wframe-address] > frame = __builtin_frame_address(2); Funny, but it's not related to the reported issue. > ^~~~~~~~~~~~~~~~~~~~~~~~~~ > >> drivers/crypto/qat/qat_c62xvf/adf_c62xvf_hw_data.c:102:28: warning: taking address of packed member 'csr_ops' of class or structure 'adf_hw_device_data' may result in an unaligned pointer value [-Waddress-of-packed-member] > adf_gen2_init_hw_csr_ops(&hw_data->csr_ops); > ^~~~~~~~~~~~~~~~ > 3 warnings generated. Why on Earth the struct adf_hw_device_data, that contains a lot of pointers, marked as __packed?! That __packed has to be dropped. -- With Best Regards, Andy Shevchenko