[kbuild-all] [intel-tdx:tdx/guest-rebased 118/133] boot.c:undefined reference to `swiotlb_hint_cpus'

tree: https://github.com/intel/tdx.git tdx/guest-rebased head: e3995864d37c56f431c93fc3dc454d9c65f5e9ea commit: 8c696e48187c5ffa881e639e1108622debbe6741 [118/133] swiotlb: Split up single swiotlb lock config: i386-defconfig (https://download.01.org/0day-ci/archive/20220114/202201140759.vUKBZKzB-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/intel/tdx/commit/8c696e48187c5ffa881e639e1108622debbe6741 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx tdx/guest-rebased git checkout 8c696e48187c5ffa881e639e1108622debbe6741 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash 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 >>): ld: arch/x86/kernel/acpi/boot.o: in function `acpi_boot_init': --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org