Hi Oleksij, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dbe69e43372212527abf48609aba7fc39a6daa27 commit: 6965eece2a89c3f1d00881c6052ee1e987870c08 Input: ads7846 - convert to one message date: 5 months ago config: mips-buildonly-randconfig-r005-20210630 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8d21d5472501460933e78aead04cf59579025ba4) 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=6965eece2a89c3f1d00881c6052ee1e987870c08 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6965eece2a89c3f1d00881c6052ee1e987870c08 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/input/touchscreen/ads7846.c:705:24: warning: taking address of packed member 'data' of class or structure 'ads7846_buf' may result in an unaligned pointer value [-Waddress-of-packed-member] value = be16_to_cpup(&buf->data); ^~~~~~~~~ 1 warning generated. vim +705 drivers/input/touchscreen/ads7846.c 700 701 static int ads7846_get_value(struct ads7846_buf *buf) 702 { 703 int value; 704 > 705 value = be16_to_cpup(&buf->data); 706 707 /* enforce ADC output is 12 bits width */ 708 return (value >> 3) & 0xfff; 709 } 710 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org