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 776D6C433F5 for ; Wed, 18 May 2022 06:46:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231542AbiERGq1 (ORCPT ); Wed, 18 May 2022 02:46:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47180 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231539AbiERGqZ (ORCPT ); Wed, 18 May 2022 02:46:25 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 957B113CCE for ; Tue, 17 May 2022 23:46:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652856383; x=1684392383; h=date:from:to:cc:subject:message-id:mime-version; bh=eFg/OiSzC+FbPf82f+mKznpjNGbY+1W6OsvZJl8tgKA=; b=cgr5TL8Pd/LYxQGw0Cbz6ztfXGLzKx3DQQAWdj1XOnOu+wFGzAAohlvt 6od4uH60bjqFyICIJcvwW61fdAFhQzN0e26nTAyyJhu7PNiWXRXqhhXA7 6wCq763+vQzz04eO3G/Hb+/sIqGA74Uj2Os61kVK+TkBjg36CZsXPRovH 2I02z/Gv3f6xCD/ir6iMPMYy5wZE+X0LaOY0i8tpsNQhMjIfPW0p4V0tM SmJZU08M+iG/ip36cJRwAprMc6GByB6kJC4uBOmGbvhuSu896NxPS59ec 3lATdI2oTPU1wmEMDk7Vkw65AYW8LsznJpbwlaRTXDSyRx03S15NMSKBK Q==; X-IronPort-AV: E=McAfee;i="6400,9594,10350"; a="271460235" X-IronPort-AV: E=Sophos;i="5.91,234,1647327600"; d="scan'208";a="271460235" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 May 2022 23:46:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,234,1647327600"; d="scan'208";a="660994892" Received: from lkp-server02.sh.intel.com (HELO 242b25809ac7) ([10.239.97.151]) by FMSMGA003.fm.intel.com with ESMTP; 17 May 2022 23:46:21 -0700 Received: from kbuild by 242b25809ac7 with local (Exim 4.95) (envelope-from ) id 1nrDRs-0001t1-D4; Wed, 18 May 2022 06:46:20 +0000 Date: Wed, 18 May 2022 14:45:33 +0800 From: kernel test robot To: Marc Kleine-Budde Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: drivers/net/can/spi/mcp251xfd/mcp251xfd.h:481:34: warning: field hw_tx_obj within 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:479:2)' is less aligned than 'struct mcp251xfd_hw_tx_obj_raw' and is usually due to ... Message-ID: <202205181414.n8QRDe8k-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 210e04ff768142b96452030c4c2627512b30ad95 commit: eb79a267c9b3e608e7762a1b221428f37ace3aa3 can: mcp251xfd: rename all remaining occurrence to mcp251xfd date: 1 year, 8 months ago config: arm-randconfig-c002-20220518 (https://download.01.org/0day-ci/archive/20220518/202205181414.n8QRDe8k-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 853fa8ee225edf2d0de94b0dcbd31bea916e825e) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb79a267c9b3e608e7762a1b221428f37ace3aa3 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout eb79a267c9b3e608e7762a1b221428f37ace3aa3 # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/net/can/spi/mcp251xfd/mcp251xfd.h:481:34: warning: field hw_tx_obj within 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:479:2)' is less aligned than 'struct mcp251xfd_hw_tx_obj_raw' and is usually due to 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:479:2)' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct mcp251xfd_hw_tx_obj_raw hw_tx_obj; ^ drivers/net/can/spi/mcp251xfd/mcp251xfd.h:485:34: warning: field hw_tx_obj within 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:483:2)' is less aligned than 'struct mcp251xfd_hw_tx_obj_raw' and is usually due to 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:483:2)' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct mcp251xfd_hw_tx_obj_raw hw_tx_obj; ^ drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c:511:1: warning: unused function 'mcp251xfd_chip_set_mode_nowait' [-Wunused-function] mcp251xfd_chip_set_mode_nowait(const struct mcp251xfd_priv *priv, ^ 3 warnings generated. -- >> drivers/net/can/spi/mcp251xfd/mcp251xfd.h:481:34: warning: field hw_tx_obj within 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:479:2)' is less aligned than 'struct mcp251xfd_hw_tx_obj_raw' and is usually due to 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:479:2)' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct mcp251xfd_hw_tx_obj_raw hw_tx_obj; ^ drivers/net/can/spi/mcp251xfd/mcp251xfd.h:485:34: warning: field hw_tx_obj within 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:483:2)' is less aligned than 'struct mcp251xfd_hw_tx_obj_raw' and is usually due to 'struct mcp251xfd_tx_obj_load_buf::(unnamed at drivers/net/can/spi/mcp251xfd/mcp251xfd.h:483:2)' being packed, which can lead to unaligned accesses [-Wunaligned-access] struct mcp251xfd_hw_tx_obj_raw hw_tx_obj; ^ 2 warnings generated. vim +481 drivers/net/can/spi/mcp251xfd/mcp251xfd.h 477 478 union mcp251xfd_tx_obj_load_buf { 479 struct __packed { 480 struct mcp251xfd_buf_cmd cmd; > 481 struct mcp251xfd_hw_tx_obj_raw hw_tx_obj; 482 } nocrc; 483 struct __packed { 484 struct mcp251xfd_buf_cmd_crc cmd; 485 struct mcp251xfd_hw_tx_obj_raw hw_tx_obj; 486 __be16 crc; 487 } crc; 488 } ____cacheline_aligned; 489 -- 0-DAY CI Kernel Test Service https://01.org/lkp