tree: https://github.com/intel/tdx.git kvm-upstream head: bdfe06c17daab60c196ff80c1d98467a1d3734fa commit: bf8636a6b18c9a4a17d11dd306dcc7809db9cc9c [72/152] KVM: TDX: Stub in tdx.h with structs, accessors, and VMCS helpers config: i386-randconfig-m021-20211216 (https://download.01.org/0day-ci/archive/20211216/202112161952.Ly2O53qj-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/bf8636a6b18c9a4a17d11dd306dcc7809db9cc9c git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream git checkout bf8636a6b18c9a4a17d11dd306dcc7809db9cc9c # 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 >>): 4 | void __init tdx_pre_kvm_init(unsigned int *vcpu_size, | ^~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/tdx_pre_kvm_init +4 arch/x86/kvm/vmx/tdx_stubs.c 3 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org