Hi Yu, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/x86/core] [also build test ERROR on cgroup/for-next tip/x86/mm fuse/for-next tip/perf/core tip/sched/core linus/master v5.12-rc7] [cannot apply to hnaz-linux-mm/master next-20210413] [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/Yu-Zhao/Multigenerational-LRU-Framework/20210413-145844 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 99cb64de36d5c9397a664808b92943e35bdce25e config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-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/f05f4c64bb8f0b8bcc40c9931f51bffdb6502cdd git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yu-Zhao/Multigenerational-LRU-Framework/20210413-145844 git checkout f05f4c64bb8f0b8bcc40c9931f51bffdb6502cdd # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> mm/vmscan.c:4704:16: error: variably modified 'bitmap' at file scope 4704 | unsigned long bitmap[BITS_TO_LONGS(PTRS_PER_PMD)]; | ^~~~~~ vim +/bitmap +4704 mm/vmscan.c 46b27b9e9608eb Yu Zhao 2021-04-13 4691 46b27b9e9608eb Yu Zhao 2021-04-13 4692 struct mm_walk_args { 46b27b9e9608eb Yu Zhao 2021-04-13 4693 struct mem_cgroup *memcg; 46b27b9e9608eb Yu Zhao 2021-04-13 4694 unsigned long max_seq; 46b27b9e9608eb Yu Zhao 2021-04-13 4695 unsigned long next_addr; 46b27b9e9608eb Yu Zhao 2021-04-13 4696 unsigned long start_pfn; 46b27b9e9608eb Yu Zhao 2021-04-13 4697 unsigned long end_pfn; 46b27b9e9608eb Yu Zhao 2021-04-13 4698 int node_id; 46b27b9e9608eb Yu Zhao 2021-04-13 4699 int batch_size; 46b27b9e9608eb Yu Zhao 2021-04-13 4700 int mm_stats[NR_MM_STATS]; 46b27b9e9608eb Yu Zhao 2021-04-13 4701 int nr_pages[MAX_NR_GENS][ANON_AND_FILE][MAX_NR_ZONES]; 46b27b9e9608eb Yu Zhao 2021-04-13 4702 bool should_walk[ANON_AND_FILE]; 46b27b9e9608eb Yu Zhao 2021-04-13 4703 #if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HAVE_ARCH_PARENT_PMD_YOUNG) 46b27b9e9608eb Yu Zhao 2021-04-13 @4704 unsigned long bitmap[BITS_TO_LONGS(PTRS_PER_PMD)]; 46b27b9e9608eb Yu Zhao 2021-04-13 4705 #endif 46b27b9e9608eb Yu Zhao 2021-04-13 4706 }; 46b27b9e9608eb Yu Zhao 2021-04-13 4707 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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