[kbuild-all] [intel-tdx:kvm-upstream 73/152] arch/x86/kvm/vmx/tdx_stubs.c:6:12: warning: no previous prototype for function 'tdx_hardware_setup'

tree: https://github.com/intel/tdx.git kvm-upstream head: bdfe06c17daab60c196ff80c1d98467a1d3734fa commit: 3545bcde2d72e4b5b5f16571788aac0ddb5f49a5 [73/152] KVM: TDX: Add KVM TDX system-wide initialization and teardown config: x86_64-randconfig-a013-20211216 (https://download.01.org/0day-ci/archive/20211216/202112162216.Lu7x1lPh-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel/tdx/commit/3545bcde2d72e4b5b5f16571788aac0ddb5f49a5 git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx kvm-upstream git checkout 3545bcde2d72e4b5b5f16571788aac0ddb5f49a5 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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:4:13: warning: no previous prototype for function 'tdx_pre_kvm_init' [-Wmissing-prototypes] void __init tdx_pre_kvm_init(unsigned int *vcpu_size, ^ arch/x86/kvm/vmx/tdx_stubs.c:4:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init tdx_pre_kvm_init(unsigned int *vcpu_size, ^ static int __init tdx_hardware_setup(struct kvm_x86_ops *x86_ops) { return -EOPNOTSUPP; } ^ arch/x86/kvm/vmx/tdx_stubs.c:6:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __init tdx_hardware_setup(struct kvm_x86_ops *x86_ops) { return -EOPNOTSUPP; } ^ static void tdx_hardware_enable(void) {} ^ arch/x86/kvm/vmx/tdx_stubs.c:7:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void tdx_hardware_enable(void) {} ^ static void tdx_hardware_disable(void) {} ^ arch/x86/kvm/vmx/tdx_stubs.c:8:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void tdx_hardware_disable(void) {} ^ static 4 warnings generated. vim +/tdx_hardware_setup +6 arch/x86/kvm/vmx/tdx_stubs.c 3 4 void __init tdx_pre_kvm_init(unsigned int *vcpu_size, 5 unsigned int *vcpu_align, unsigned int *vm_size) {} --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org