tree: https://github.com/intel/tdx.git kvm-upstream-workaround head: 58f28b2fcc73d05d6a5a9f70a8fdacefa99acb85 commit: c4a72d4d1cfe13ebb2ee11e183fc4ebc9bc831d0 [86/141] KVM: TDX: Implement interrupt injection config: x86_64-randconfig-a002 (https://download.01.org/0day-ci/archive/20220209/202202091551.vEzKN4Pb-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/c4a72d4d1cfe13ebb2ee11e183fc4ebc9bc831d0 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream-workaround git checkout c4a72d4d1cfe13ebb2ee11e183fc4ebc9bc831d0 # 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 >>): arch/x86/kvm/vmx/tdx_stubs.c:9:5: warning: no previous prototype for 'tdx_module_setup' [-Wmissing-prototypes] 9 | int tdx_module_setup(void) { return -EOPNOTSUPP; }; | ^~~~~~~~~~~~~~~~ 26 | int tdx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector) { return 0; } | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/tdx_deliver_posted_interrupt +26 arch/x86/kvm/vmx/tdx_stubs.c 24 25 void tdx_apicv_post_state_restore(struct kvm_vcpu *vcpu) {} 27 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org