在 2022/9/16 上午6:26, Andrew Morton 写道:
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.
Oh, my bad, thanks.
