tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 58f28b2fcc73d05d6a5a9f70a8fdacefa99acb85 commit: c3655d888b8950b33970012d3359b9e3921e36c6 [37/141] KVM: TDX: Add helper function to initialize TDX module config: x86_64-randconfig-a002 (https://download.01.org/0day-ci/archive/20220209/202202091337.hA7jAV2B-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/c3655d888b8950b33970012d3359b9e3921e36c6 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout c3655d888b8950b33970012d3359b9e3921e36c6 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 9 | int tdx_module_setup(void) { return -EOPNOTSUPP; }; | ^~~~~~~~~~~~~~~~ vim +/tdx_module_setup +9 arch/x86/kvm/vmx/tdx_stubs.c 5 6 void __init tdx_pre_kvm_init(unsigned int *vcpu_size, 7 unsigned int *vcpu_align, unsigned int *vm_size) {} 8 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org