Hi Yuanchu, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.12-rc4 next-20241023] [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/Yuanchu-Xie/virt-pvmemcontrol-add-Yuanchu-and-Pasha-as-maintainers/20241022-045035 base: linus/master patch link: https://lore.kernel.org/r/20241021204849.1580384-1-yuanchu%40google.com patch subject: [PATCH v4 1/2] virt: pvmemcontrol: control guest physical memory properties config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20241023/202410231908.jZfkawyd-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241023/202410231908.jZfkawyd-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/202410231908.jZfkawyd-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>, old ones prefixed by <<): >> ERROR: modpost: "per_cpu_ptr_to_phys" [drivers/virt/pvmemcontrol/pvmemcontrol.ko] undefined! Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
