[kbuild-all] [intel-tdx:kvm-upstream 72/152] arch/x86/kvm/vmx/tdx_stubs.c:4:13: warning: no previous prototype for function 'tdx_pre_kvm_init'

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: x86_64-randconfig-a013-20211216 (https://download.01.org/0day-ci/archive/20211216/202112162144.0WgRhoCw-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/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 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 >>): 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 1 warning generated. 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