Hi Byungchul, kernel test robot noticed the following build errors: [auto build test ERROR on tip/sched/core] [also build test ERROR on tip/x86/core tip/x86/mm linus/master v6.6 next-20231109] [cannot apply to akpm-mm/mm-everything] [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/Byungchul-Park/mm-rmap-Recognize-read-only-TLB-entries-during-batched-TLB-flush/20231109-163706 base: tip/sched/core patch link: https://lore.kernel.org/r/20231109045908.54996-2-byungchul%40sk.com patch subject: [v4 1/3] mm/rmap: Recognize read-only TLB entries during batched TLB flush config: arm64-randconfig-002-20231109 (https://download.01.org/0day-ci/archive/20231110/202311100429.nc4jJoNu-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231110/202311100429.nc4jJoNu-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/202311100429.nc4jJoNu-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): mm/rmap.c: In function 'fold_ubc_ro': >> mm/rmap.c:620:9: error: implicit declaration of function 'arch_tlbbatch_fold'; did you mean 'arch_tlbbatch_flush'? [-Werror=implicit-function-declaration] 620 | arch_tlbbatch_fold(&tlb_ubc->arch, &tlb_ubc_ro->arch); | ^~~~~~~~~~~~~~~~~~ | arch_tlbbatch_flush >> mm/rmap.c:626:9: error: implicit declaration of function 'arch_tlbbatch_clear'; did you mean 'arch_tlbbatch_flush'? [-Werror=implicit-function-declaration] 626 | arch_tlbbatch_clear(&tlb_ubc_ro->arch); | ^~~~~~~~~~~~~~~~~~~ | arch_tlbbatch_flush cc1: some warnings being treated as errors vim +620 mm/rmap.c 608 609 void fold_ubc_ro(void) 610 { 611 struct tlbflush_unmap_batch *tlb_ubc = ¤t->tlb_ubc; 612 struct tlbflush_unmap_batch *tlb_ubc_ro = ¤t->tlb_ubc_ro; 613 614 if (!tlb_ubc_ro->flush_required) 615 return; 616 617 /* 618 * Fold tlb_ubc_ro's data to tlb_ubc. 619 */ > 620 arch_tlbbatch_fold(&tlb_ubc->arch, &tlb_ubc_ro->arch); 621 tlb_ubc->flush_required = true; 622 623 /* 624 * Reset tlb_ubc_ro's data. 625 */ > 626 arch_tlbbatch_clear(&tlb_ubc_ro->arch); 627 tlb_ubc_ro->flush_required = false; 628 } 629 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
