Hi chukaiping, Thank you for the patch! Yet something to improve: [auto build test ERROR on kees/for-next/pstore] [also build test ERROR on linus/master v5.12-rc7 next-20210412] [cannot apply to hnaz-linux-mm/master] [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/chukaiping/mm-compaction-let-proactive-compaction-order-configurable/20210412-172336 base: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/pstore config: ia64-allmodconfig (attached as .config) compiler: ia64-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/a203321bf356e9514ca678c96119df72d6bfa803 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review chukaiping/mm-compaction-let-proactive-compaction-order-configurable/20210412-172336 git checkout a203321bf356e9514ca678c96119df72d6bfa803 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from arch/ia64/include/asm/ptrace.h:46, from arch/ia64/include/asm/processor.h:20, from arch/ia64/include/asm/thread_info.h:12, from include/linux/thread_info.h:58, from include/asm-generic/preempt.h:5, from ./arch/ia64/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/rcupdate.h:27, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/node.h:18, from include/linux/cpu.h:17, from mm/compaction.c:11: >> arch/ia64/include/asm/page.h:153:29: error: initializer element is not constant 153 | # define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) | ^ mm/compaction.c:66:32: note: in expansion of macro 'HUGETLB_PAGE_ORDER' 66 | #define COMPACTION_HPAGE_ORDER HUGETLB_PAGE_ORDER | ^~~~~~~~~~~~~~~~~~ mm/compaction.c:2669:54: note: in expansion of macro 'COMPACTION_HPAGE_ORDER' 2669 | unsigned int __read_mostly sysctl_compaction_order = COMPACTION_HPAGE_ORDER; | ^~~~~~~~~~~~~~~~~~~~~~ vim +153 arch/ia64/include/asm/page.h ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 149 ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 150 #ifdef CONFIG_HUGETLB_PAGE ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 151 # define htlbpage_to_page(x) (((unsigned long) REGION_NUMBER(x) << 61) \ ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 152 | (REGION_OFFSET(x) >> (HPAGE_SHIFT-PAGE_SHIFT))) ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 @153 # define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 154 extern unsigned int hpage_shift; ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 155 #endif ^1da177e4c3f41 include/asm-ia64/page.h Linus Torvalds 2005-04-16 156 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org