Hi Atte, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bc752d2f345bf55d71b3422a6a24890ea03168dc] url: https://github.com/0day-ci/linux/commits/Atte-Tommiska/hwrng-add-support-... base: bc752d2f345bf55d71b3422a6a24890ea03168dc config: riscv-randconfig-c003-20200820 (attached as .config) compiler: riscv32-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; coccinelle warnings: (new ones prefixed by >>) Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org