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

[kernel test robot <lkp@intel.com>]

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-lkp@intel.com/config)
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@intel.com>

All errors (new ones prefixed by >>):

>> arch/x86/kvm/vmx/tdx_stubs.c:4:13: error: no previous prototype for 'tdx_pre_kvm_init' [-Werror=missing-prototypes]
       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	
   > 4	void __init tdx_pre_kvm_init(unsigned int *vcpu_size,

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org