Hi Damien, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on spi/for-next pza/reset/next v5.10-rc3] [cannot apply to linus/master next-20201113] [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/Damien-Le-Moal/RISC-V-Kendryte-K... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: riscv-randconfig-p001-20201109 (attached as .config) compiler: riscv64-linux-gcc (GCC) 9.3.0 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 # https://github.com/0day-ci/linux/commit/ec1240e1739d5d0703571eaf23e82ec99... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Damien-Le-Moal/RISC-V-Kendryte-K210-support-improvments/20201109-095540 git checkout ec1240e1739d5d0703571eaf23e82ec9932e3d42 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): make[3]: Target '__build' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org