On Fri, 16 Sep 2022 05:54:56 +0800 kernel test robot <lkp@xxxxxxxxx> wrote: > Hi Xin, > > Thank you for the patch! Yet something to improve: > > [auto build test ERROR on akpm-mm/mm-everything] > > url: https://github.com/intel-lab-lkp/linux/commits/Xin-Hao/mm-damon-sysfs-avoid-call-damon_target_has_pid-repeatedly/20220915-230635 > base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything > config: hexagon-randconfig-r002-20220915 (https://download.01.org/0day-ci/archive/20220916/202209160528.6z2rUbjZ-lkp@xxxxxxxxx/config) > compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) > 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/intel-lab-lkp/linux/commit/7902790b04d0eb74686b55218e8ead191ba5c003 > git remote add linux-review https://github.com/intel-lab-lkp/linux > git fetch --no-tags linux-review Xin-Hao/mm-damon-sysfs-avoid-call-damon_target_has_pid-repeatedly/20220915-230635 > git checkout 7902790b04d0eb74686b55218e8ead191ba5c003 > # save the config file > mkdir build_dir && cp config build_dir/.config > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash mm/damon/ > > If you fix the issue, kindly add following tag where applicable > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > >> mm/damon/vaddr.c:451:7: error: call to undeclared function 'pmd_young'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] > if (pmd_young(*pmd) || !page_is_idle(page) || > ^ > mm/damon/vaddr.c:451:7: note: did you mean 'pte_young'? > arch/hexagon/include/asm/pgtable.h:273:19: note: 'pte_young' declared here > static inline int pte_young(pte_t pte) > ^ Thanks. I guess the arch needn't implement pmd_young() if it doesn't implement THP. I dropped the patch.
