Hi Miaohe, Thank you for the patch! Yet something to improve: [auto build test ERROR on hnaz-mm/master] [also build test ERROR on linus/master v5.18-rc1 next-20220408] [cannot apply to linux/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/intel-lab-lkp/linux/commits/Miaohe-Lin/A-few-cleanup-and-fixup-patches-for-migration/20220409-154028 base: https://github.com/hnaz/linux-mm master config: powerpc64-randconfig-r015-20220408 (https://download.01.org/0day-ci/archive/20220409/202204091914.psVO4TrI-lkp@xxxxxxxxx/config) compiler: powerpc64-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/intel-lab-lkp/linux/commit/73a982570cc62313c55cc5cbc2dd7acf40601474 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Miaohe-Lin/A-few-cleanup-and-fixup-patches-for-migration/20220409-154028 git checkout 73a982570cc62313c55cc5cbc2dd7acf40601474 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/mm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/powerpc/mm/hugetlbpage.c: In function 'follow_huge_pd': >> arch/powerpc/mm/hugetlbpage.c:537:25: error: too few arguments to function '__migration_entry_wait' 537 | __migration_entry_wait(mm, ptep, ptl); | ^~~~~~~~~~~~~~~~~~~~~~ In file included from arch/powerpc/mm/hugetlbpage.c:20: include/linux/swapops.h:233:13: note: declared here 233 | extern void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep, | ^~~~~~~~~~~~~~~~~~~~~~ vim +/__migration_entry_wait +537 arch/powerpc/mm/hugetlbpage.c ^1da177e4c3f41 arch/ppc64/mm/hugetlbpage.c Linus Torvalds 2005-04-16 507 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 508 struct page *follow_huge_pd(struct vm_area_struct *vma, 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 509 unsigned long address, hugepd_t hpd, 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 510 int flags, int pdshift) 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 511 { 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 512 pte_t *ptep; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 513 spinlock_t *ptl; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 514 struct page *page = NULL; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 515 unsigned long mask; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 516 int shift = hugepd_shift(hpd); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 517 struct mm_struct *mm = vma->vm_mm; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 518 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 519 retry: ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 520 /* ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 521 * hugepage directory entries are protected by mm->page_table_lock ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 522 * Use this instead of huge_pte_lockptr ed515b6898c367 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2018-06-01 523 */ 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 524 ptl = &mm->page_table_lock; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 525 spin_lock(ptl); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 526 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 527 ptep = hugepte_offset(hpd, address, pdshift); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 528 if (pte_present(*ptep)) { 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 529 mask = (1UL << shift) - 1; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 530 page = pte_page(*ptep); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 531 page += ((address & mask) >> PAGE_SHIFT); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 532 if (flags & FOLL_GET) 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 533 get_page(page); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 534 } else { 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 535 if (is_hugetlb_entry_migration(*ptep)) { 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 536 spin_unlock(ptl); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 @537 __migration_entry_wait(mm, ptep, ptl); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 538 goto retry; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 539 } 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 540 } 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 541 spin_unlock(ptl); 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 542 return page; 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 543 } 50791e6de0b5f2 arch/powerpc/mm/hugetlbpage.c Aneesh Kumar K.V 2017-07-06 544 -- 0-DAY CI Kernel Test Service https://01.org/lkp