kbuild test robot <lkp@xxxxxxxxx> writes: > Hi Punit, > > [auto build test ERROR on linus/master] > [also build test ERROR on v4.12-rc2 next-20170524] > [cannot apply to mmotm/master] > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] > > url: https://github.com/0day-ci/linux/commits/Punit-Agrawal/Support-for-contiguous-pte-hugepages/20170524-221905 > config: x86_64-kexec (attached as .config) > compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All errors (new ones prefixed by >>): > > mm/rmap.c: In function 'try_to_unmap_one': >>> mm/rmap.c:1386:5: error: implicit declaration of function 'set_huge_swap_pte_at' [-Werror=implicit-function-declaration] > set_huge_swap_pte_at(mm, address, > ^~~~~~~~~~~~~~~~~~~~ > cc1: some warnings being treated as errors > > vim +/set_huge_swap_pte_at +1386 mm/rmap.c > > 1380 > 1381 if (PageHWPoison(page) && !(flags & TTU_IGNORE_HWPOISON)) { > 1382 pteval = swp_entry_to_pte(make_hwpoison_entry(subpage)); > 1383 if (PageHuge(page)) { > 1384 int nr = 1 << compound_order(page); > 1385 hugetlb_count_sub(nr, mm); >> 1386 set_huge_swap_pte_at(mm, address, > 1387 pvmw.pte, pteval, > 1388 vma_mmu_pagesize(vma)); > 1389 } else { > Thanks for the report. The build failure is caused due to missing function definition for set_huge_swap_pte_at() when CONFIG_HUGETLB_PAGE is disabled. I've posted an update to Patch 7 where the function is introduced to fix this issue. > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation
