Hi Matteo, Thank you for the patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v5.15-rc1 next-20210917] [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/Matteo-Croce/riscv-optimized-mem-functions/20210920-032303 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git bdb575f872175ed0ecf2638369da1cb7a6e86a14 config: riscv-randconfig-r004-20210919 (attached as .config) compiler: riscv64-linux-gcc (GCC) 11.2.0 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/9a948fd7d78a58890608e9dd0f77e5ff84f36e3e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Matteo-Croce/riscv-optimized-mem-functions/20210920-032303 git checkout 9a948fd7d78a58890608e9dd0f77e5ff84f36e3e # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): arch/riscv/lib/string.c: In function '__memmove': >> arch/riscv/lib/string.c:89:7: error: inlining failed in call to 'always_inline' 'memcpy': function body can be overwritten at link time 89 | void *memcpy(void *dest, const void *src, size_t count) __weak __alias(__memcpy); | ^~~~~~ arch/riscv/lib/string.c:99:24: note: called from here 99 | return memcpy(dest, src, count); | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +89 arch/riscv/lib/string.c 86c5866e9b7fdd Matteo Croce 2021-09-19 88 86c5866e9b7fdd Matteo Croce 2021-09-19 @89 void *memcpy(void *dest, const void *src, size_t count) __weak __alias(__memcpy); 86c5866e9b7fdd Matteo Croce 2021-09-19 90 EXPORT_SYMBOL(memcpy); 9a948fd7d78a58 Matteo Croce 2021-09-19 91 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org