Hi "József, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tty/tty-testing] [also build test WARNING on usb/usb-testing robh/for-next linus/master v5.10] [cannot apply to next-20201215] [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/J-zsef-Horv-th/Serial-silabs-si4455-serial-driver/20201215-152422 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing config: arm-randconfig-r035-20201215 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project a29ecca7819a6ed4250d3689b12b1f664bb790d7) 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://github.com/0day-ci/linux/commit/52689786f9d510c9f4da3a56a3f049e2128f9730 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review J-zsef-Horv-th/Serial-silabs-si4455-serial-driver/20201215-152422 git checkout 52689786f9d510c9f4da3a56a3f049e2128f9730 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/tty/serial/si4455.c:1371:17: warning: illegal character encoding in string literal [-Winvalid-source-encoding] MODULE_AUTHOR("J<F3>zsef Horv<E1>th <info@xxxxxxxxxxx>"); ^~~~ ~~~~ include/linux/module.h:233:52: note: expanded from macro 'MODULE_AUTHOR' #define MODULE_AUTHOR(_author) MODULE_INFO(author, _author) ^~~~~~~ include/linux/module.h:163:56: note: expanded from macro 'MODULE_INFO' #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info) ^~~~ include/linux/moduleparam.h:26:47: note: expanded from macro '__MODULE_INFO' = __MODULE_INFO_PREFIX __stringify(tag) "=" info ^~~~ 1 warning generated. vim +1371 drivers/tty/serial/si4455.c 1369 1370 MODULE_LICENSE("GPL"); > 1371 MODULE_AUTHOR("J�f Horv� <info@xxxxxxxxxxx>"); --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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