tree: https://android.googlesource.com/kernel/common android12-5.10-2021-08 head: 62a5f8e3accffd371afdff1652975e80d7dab30e commit: 357700fcc3b51b66e2a790c5bb036d97916086af [7519/10754] FROMGIT: userfaultfd/selftests: add test exercising minor fault handling config: i386-randconfig-a012-20210816 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2c6448cdc2f68f8c28fd0bd9404182b81306e6e6) 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 git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android12-5.10-2021-08 git checkout 357700fcc3b51b66e2a790c5bb036d97916086af # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash -C tools/testing/selftests/vm install If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): "UFFDIO_CONTINUE failed for address 0x%" PRIx64 "\n", ^ userfaultfd.c:372:10: note: to match this '(' fprintf(stderr, ^ uint8_t *area; ^ uint8_t *area; ^ userfaultfd.c:612:3: error: use of undeclared identifier 'area' area = (uint8_t *)(area_dst + ^ area = (uint8_t *)(area_dst + ^ userfaultfd.c:612:11: error: use of undeclared identifier 'uint8_t' area = (uint8_t *)(area_dst + ^ userfaultfd.c:616:4: error: use of undeclared identifier 'area' area[b] = ~area[b]; ^ userfaultfd.c:616:15: error: use of undeclared identifier 'area' area[b] = ~area[b]; ^ static int userfaultfd_open_ext(uint64_t *features) ^ userfaultfd.c:854:29: error: unknown type name 'uint64_t' static int userfaultfd_open(uint64_t features) ^ userfaultfd.c:1288:9: error: expected ';' after expression uint8_t expected_byte; ^ ; userfaultfd.c:1288:2: error: use of undeclared identifier 'uint8_t' uint8_t expected_byte; ^ userfaultfd.c:1288:10: error: use of undeclared identifier 'expected_byte' uint8_t expected_byte; ^ userfaultfd.c:1292:10: error: expected ';' after expression uint64_t features = UFFD_FEATURE_MINOR_HUGETLBFS; ^ ; userfaultfd.c:1292:2: error: use of undeclared identifier 'uint64_t' uint64_t features = UFFD_FEATURE_MINOR_HUGETLBFS; ^ userfaultfd.c:1292:11: error: use of undeclared identifier 'features' uint64_t features = UFFD_FEATURE_MINOR_HUGETLBFS; ^ userfaultfd.c:1303:28: error: use of undeclared identifier 'features' if (userfaultfd_open_ext(&features)) ^ userfaultfd.c:1306:8: error: use of undeclared identifier 'features' if (!(features & UFFD_FEATURE_MINOR_HUGETLBFS)) { ^ userfaultfd.c:1332:44: error: use of undeclared identifier 'uint8_t' memset(area_dst + (p * page_size), p % ((uint8_t)-1), ^ fatal error: too many errors emitted, stopping now [-ferror-limit=] 20 errors generated. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org