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 822E6C433F5 for ; Fri, 26 Nov 2021 00:19:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356936AbhKZAWR (ORCPT ); Thu, 25 Nov 2021 19:22:17 -0500 Received: from mga14.intel.com ([192.55.52.115]:6781 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346150AbhKZAUK (ORCPT ); Thu, 25 Nov 2021 19:20:10 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10179"; a="235823510" X-IronPort-AV: E=Sophos;i="5.87,263,1631602800"; d="scan'208";a="235823510" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Nov 2021 16:16:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,263,1631602800"; d="scan'208";a="741395724" Received: from lkp-server02.sh.intel.com (HELO 9e1e9f9b3bcb) ([10.239.97.151]) by fmsmga005.fm.intel.com with ESMTP; 25 Nov 2021 16:16:57 -0800 Received: from kbuild by 9e1e9f9b3bcb with local (Exim 4.92) (envelope-from ) id 1mqOvA-000785-F0; Fri, 26 Nov 2021 00:16:56 +0000 Date: Fri, 26 Nov 2021 08:16:09 +0800 From: kernel test robot To: David Henningsson Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Takashi Iwai , Jaroslav Kysela Subject: sound/core/rawmidi_compat.c:29:29: warning: taking address of packed member 'mode' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value Message-ID: <202111260812.IlTs6tBq-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8ced7ca3570333998ad2088d5a6275701970e28e commit: 08fdced60ca08e34e316a3ab945636fcdfcbc973 ALSA: rawmidi: Add framing mode date: 6 months ago config: mips-randconfig-r002-20211031 (https://download.01.org/0day-ci/archive/20211126/202111260812.IlTs6tBq-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d321548c3ce987f4f21350ba1c81fdb5d4354224) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=08fdced60ca08e34e316a3ab945636fcdfcbc973 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 08fdced60ca08e34e316a3ab945636fcdfcbc973 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:26:31: warning: taking address of packed member 'stream' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(params.stream, &src->stream) || ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:26:31: warning: taking address of packed member 'stream' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(params.stream, &src->stream) || ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:27:36: warning: taking address of packed member 'buffer_size' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.buffer_size, &src->buffer_size) || ^~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:27:36: warning: taking address of packed member 'buffer_size' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.buffer_size, &src->buffer_size) || ^~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:28:34: warning: taking address of packed member 'avail_min' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.avail_min, &src->avail_min) || ^~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:28:34: warning: taking address of packed member 'avail_min' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.avail_min, &src->avail_min) || ^~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: >> sound/core/rawmidi_compat.c:29:29: warning: taking address of packed member 'mode' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.mode, &src->mode) || ^~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: >> sound/core/rawmidi_compat.c:29:29: warning: taking address of packed member 'mode' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(params.mode, &src->mode) || ^~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:30:21: warning: taking address of packed member 'no_active_sensing' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(val, &src->no_active_sensing)) ^~~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:30:21: warning: taking address of packed member 'no_active_sensing' of class or structure 'snd_rawmidi_params32' may result in an unaligned pointer value [-Waddress-of-packed-member] get_user(val, &src->no_active_sensing)) ^~~~~~~~~~~~~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:63:31: warning: taking address of packed member 'stream' of class or structure 'compat_snd_rawmidi_status64' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(status.stream, &src->stream)) ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:21: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ In file included from sound/core/rawmidi.c:1608: sound/core/rawmidi_compat.c:63:31: warning: taking address of packed member 'stream' of class or structure 'compat_snd_rawmidi_status64' may result in an unaligned pointer value [-Waddress-of-packed-member] if (get_user(status.stream, &src->stream)) ^~~~~~~~~~~ arch/mips/include/asm/uaccess.h:135:42: note: expanded from macro 'get_user' const __typeof__(*(ptr)) __user *__p = (ptr); \ ^~~ 12 warnings generated. vim +29 sound/core/rawmidi_compat.c 19 20 static int snd_rawmidi_ioctl_params_compat(struct snd_rawmidi_file *rfile, 21 struct snd_rawmidi_params32 __user *src) 22 { 23 struct snd_rawmidi_params params; 24 unsigned int val; 25 26 if (get_user(params.stream, &src->stream) || 27 get_user(params.buffer_size, &src->buffer_size) || 28 get_user(params.avail_min, &src->avail_min) || > 29 get_user(params.mode, &src->mode) || 30 get_user(val, &src->no_active_sensing)) 31 return -EFAULT; 32 params.no_active_sensing = val; 33 switch (params.stream) { 34 case SNDRV_RAWMIDI_STREAM_OUTPUT: 35 if (!rfile->output) 36 return -EINVAL; 37 return snd_rawmidi_output_params(rfile->output, ¶ms); 38 case SNDRV_RAWMIDI_STREAM_INPUT: 39 if (!rfile->input) 40 return -EINVAL; 41 return snd_rawmidi_input_params(rfile->input, ¶ms); 42 } 43 return -EINVAL; 44 } 45 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org