[intel-tdx:guest 2/4] arch/x86/kernel/tdx-tests.c:66:12: warning: no previous prototype for 'kvm_unit_test_debug_init'

[kernel test robot]

tree:   https://github.com/intel/tdx.git guest
head:   f3d7a7e86bf2f0d5ce629f2fb7be11dca88ac06d
commit: 4cd6be90a565d847e1d7ccfe28264a1610a02a34 [2/4] x86/tdx-tests: Add a port of a kvm unit test
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220225/202202250905.0cOkUXj4-lkp@xxxxxxxxx/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/4cd6be90a565d847e1d7ccfe28264a1610a02a34
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest
        git checkout 4cd6be90a565d847e1d7ccfe28264a1610a02a34
        # 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/kernel/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/tdx-tests.c:66:12: warning: no previous prototype for 'kvm_unit_test_debug_init' [-Wmissing-prototypes]
      66 | int __init kvm_unit_test_debug_init(void)
         |            ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/kvm_unit_test_debug_init +66 arch/x86/kernel/tdx-tests.c

    65	
  > 66	int __init kvm_unit_test_debug_init(void)

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