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d="scan'208";a="244551629" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jan 2022 02:00:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,295,1635231600"; d="scan'208";a="476592974" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by orsmga006.jf.intel.com with ESMTP; 17 Jan 2022 02:00:30 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1n9OoP-000BRi-HW; Mon, 17 Jan 2022 10:00:29 +0000 Date: Mon, 17 Jan 2022 18:00:03 +0800 From: kernel test robot To: Oleksij Rempel Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Jonathan Cameron , Andy Shevchenko Subject: drivers/iio/adc/ti-tsc2046.c:242:62: warning: taking address of packed member 'data' of class or structure 'tsc2046_adc_atom' may result in an unaligned pointer value Message-ID: <202201171718.7ZCI4YeQ-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0c947b893d69231a9add855939da7c66237ab44f commit: 9374e8f5a38defe90bc65b2decf317c1c62d91dd iio: adc: add ADC driver for the TI TSC2046 controller date: 8 months ago config: mips-randconfig-r002-20220116 (https://download.01.org/0day-ci/archive/20220117/202201171718.7ZCI4YeQ-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c63a3175c2947e8c1a2d3bbe16a8586600705c54) 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=9374e8f5a38defe90bc65b2decf317c1c62d91dd git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 9374e8f5a38defe90bc65b2decf317c1c62d91dd # 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=mips SHELL=/bin/bash drivers/iio/adc/ drivers/usb/gadget/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/iio/adc/ti-tsc2046.c:242:62: warning: taking address of packed member 'data' of class or structure 'tsc2046_adc_atom' may result in an unaligned pointer value [-Waddress-of-packed-member] return FIELD_GET(TI_TSC2046_DATA_12BIT, get_unaligned_be16(&buf->data)); ^~~~~~~~~ include/linux/bitfield.h:108:27: note: expanded from macro 'FIELD_GET' __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \ ^~~~ include/linux/bitfield.h:52:38: note: expanded from macro '__BF_FIELD_CHECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ^~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~ include/linux/compiler_types.h:328:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~ include/linux/compiler_types.h:316:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:308:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ 1 warning generated. vim +242 drivers/iio/adc/ti-tsc2046.c 239 240 static u16 tsc2046_adc_get_value(struct tsc2046_adc_atom *buf) 241 { > 242 return FIELD_GET(TI_TSC2046_DATA_12BIT, get_unaligned_be16(&buf->data)); 243 } 244 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============2148441957684982759==" MIME-Version: 1.0 From: kernel test robot To: kbuild-all@lists.01.org Subject: drivers/iio/adc/ti-tsc2046.c:242:62: warning: taking address of packed member 'data' of class or structure 'tsc2046_adc_atom' may result in an unaligned pointer value Date: Mon, 17 Jan 2022 18:00:03 +0800 Message-ID: <202201171718.7ZCI4YeQ-lkp@intel.com> List-Id: --===============2148441957684982759== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git = master head: 0c947b893d69231a9add855939da7c66237ab44f commit: 9374e8f5a38defe90bc65b2decf317c1c62d91dd iio: adc: add ADC driver f= or the TI TSC2046 controller date: 8 months ago config: mips-randconfig-r002-20220116 (https://download.01.org/0day-ci/arch= ive/20220117/202201171718.7ZCI4YeQ-lkp(a)intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c63a31= 75c2947e8c1a2d3bbe16a8586600705c54) reproduce (this is a W=3D1 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.gi= t/commit/?id=3D9374e8f5a38defe90bc65b2decf317c1c62d91dd git remote add linus https://git.kernel.org/pub/scm/linux/kernel/gi= t/torvalds/linux.git git fetch --no-tags linus master git checkout 9374e8f5a38defe90bc65b2decf317c1c62d91dd # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=3D$HOME/0day COMPILER=3Dclang make.cross W=3D= 1 O=3Dbuild_dir ARCH=3Dmips SHELL=3D/bin/bash drivers/iio/adc/ drivers/usb/= gadget/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/iio/adc/ti-tsc2046.c:242:62: warning: taking address of packed m= ember 'data' of class or structure 'tsc2046_adc_atom' may result in an unal= igned pointer value [-Waddress-of-packed-member] return FIELD_GET(TI_TSC2046_DATA_12BIT, get_unaligned_be16(&buf-= >data)); ^~~~= ~~~~~ include/linux/bitfield.h:108:27: note: expanded from macro 'FIELD_GET' __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \ ^~~~ include/linux/bitfield.h:52:38: note: expanded from macro '__BF_FIELD_CH= ECK' BUILD_BUG_ON_MSG((_mask) > (typeof(_reg))~0ull, \ ^~~~ include/linux/build_bug.h:39:58: note: expanded from macro 'BUILD_BUG_ON= _MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~ include/linux/compiler_types.h:328:22: note: expanded from macro 'compil= etime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COU= NTER__) ^~~~~~~~~ include/linux/compiler_types.h:316:23: note: expanded from macro '_compi= letime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:308:9: note: expanded from macro '__compi= letime_assert' if (!(condition)) \ ^~~~~~~~~ 1 warning generated. vim +242 drivers/iio/adc/ti-tsc2046.c 239 = 240 static u16 tsc2046_adc_get_value(struct tsc2046_adc_atom *buf) 241 { > 242 return FIELD_GET(TI_TSC2046_DATA_12BIT, get_unaligned_be16(&buf->da= ta)); 243 } 244 = --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org --===============2148441957684982759==--