Hi Matthew, kernel test robot noticed the following build errors: [auto build test ERROR on akpm-mm/mm-everything] [also build test ERROR on linus/master v6.5-rc6 next-20230809] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Matthew-Wilcox-Oracle/io_uring-Stop-calling-free_compound_page/20230815-112847 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20230815032645.1393700-4-willy%40infradead.org patch subject: [PATCH 3/9] mm: Call free_transhuge_folio() directly from destroy_large_folio() config: arm-randconfig-r046-20230815 (https://download.01.org/0day-ci/archive/20230815/202308151509.ErdX8wsj-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230815/202308151509.ErdX8wsj-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202308151509.ErdX8wsj-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> mm/page_alloc.c:615:3: error: call to undeclared function 'free_transhuge_folio'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 615 | free_transhuge_folio(folio); | ^ 1 error generated. vim +/free_transhuge_folio +615 mm/page_alloc.c 604 605 void destroy_large_folio(struct folio *folio) 606 { 607 enum compound_dtor_id dtor = folio->_folio_dtor; 608 609 if (folio_test_hugetlb(folio)) { 610 free_huge_page(folio); 611 return; 612 } 613 614 if (folio_test_transhuge(folio) && dtor == TRANSHUGE_PAGE_DTOR) { > 615 free_transhuge_folio(folio); 616 return; 617 } 618 619 VM_BUG_ON_FOLIO(dtor >= NR_COMPOUND_DTORS, folio); 620 compound_page_dtors[dtor](&folio->page); 621 } 622 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
