Hi Fuad, kernel test robot noticed the following build errors: [auto build test ERROR on 4701f33a10702d5fc577c32434eb62adde0a1ae1] url: https://github.com/intel-lab-lkp/linux/commits/Fuad-Tabba/mm-Consolidate-freeing-of-typed-folios-on-final-folio_put/20250319-003340 base: 4701f33a10702d5fc577c32434eb62adde0a1ae1 patch link: https://lore.kernel.org/r/20250318161823.4005529-6-tabba%40google.com patch subject: [PATCH v7 5/9] KVM: x86: Mark KVM_X86_SW_PROTECTED_VM as supporting guest_memfd shared memory config: x86_64-randconfig-078-20250326 (https://download.01.org/0day-ci/archive/20250326/202503262202.WSGvs92t-lkp@xxxxxxxxx/config) compiler: clang version 20.1.1 (https://github.com/llvm/llvm-project 424c2d9b7e4de40d0804dd374721e6411c27d1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250326/202503262202.WSGvs92t-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/202503262202.WSGvs92t-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: kvm_gmem_handle_folio_put >>> referenced by swap.c:110 (mm/swap.c:110) >>> mm/swap.o:(free_typed_folio) in archive vmlinux.a -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki