Hi Jiri, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on linux/master linus/master v5.13-rc6] [cannot apply to char-misc/char-misc-testing next-20210616] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Jiri-Prchal/add-support-for-FRAM... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: x86_64-randconfig-a015-20210615 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/a1e83140e4bcb84fc663fdb074e2cbb5a... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jiri-Prchal/add-support-for-FRAM/20210616-203024 git checkout a1e83140e4bcb84fc663fdb074e2cbb5a771bfc8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): return sysfs_emit(buf, "%*ph\n", sizeof(at25->sernum), at25->sernum); ~~^ ~~~~~~~~~~~~~~~~~~~~ drivers/misc/eeprom/at25.c:386:13: warning: cast to smaller integer type 'int' from 'const void *' [-Wvoid-pointer-to-int-cast] is_fram = (int)match->data; ^~~~~~~~~~~~~~~~ 2 warnings generated. vim +181 drivers/misc/eeprom/at25.c 175 176 static ssize_t sernum_show(struct device *dev, struct device_attribute *attr, char *buf) 177 { 178 struct at25_data *at25; 179 180 at25 = dev_get_drvdata(dev); 182 } 183 static DEVICE_ATTR_RO(sernum); 184 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org