linux-kernel - [intel-tdx:guest-hardening-rebased 19/23] arch/x86/coco/tdx/tdx-tests.c:66:12: warning: no previous prototype for function 'kvm_unit_test_debug

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Date:   Wed, 20 Jul 2022 14:45:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Subject: [intel-tdx:guest-hardening-rebased 19/23]
 arch/x86/coco/tdx/tdx-tests.c:66:12: warning: no previous prototype for
 function 'kvm_unit_test_debug_init'

tree:   https://github.com/intel/tdx.git guest-hardening-rebased
head:   c170462888e1dab8e3e80c1c6e3708dd473ad1ed
commit: bb5af2b7a84ef8343b56bd2c1c90461635b32bd2 [19/23] x86/tdx-tests: Add a port of a kvm unit test
config: x86_64-buildonly-randconfig-r002-20220718 (https://download.01.org/0day-ci/archive/20220720/202207201438.I3jn9Bvh-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project dd5635541cd7bbd62cd59b6694dfb759b6e9a0d8)
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/bb5af2b7a84ef8343b56bd2c1c90461635b32bd2
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest-hardening-rebased
        git checkout bb5af2b7a84ef8343b56bd2c1c90461635b32bd2
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/coco/tdx/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> arch/x86/coco/tdx/tdx-tests.c:66:12: warning: no previous prototype for function 'kvm_unit_test_debug_init' [-Wmissing-prototypes]
   int __init kvm_unit_test_debug_init(void)
              ^
   arch/x86/coco/tdx/tdx-tests.c:66:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __init kvm_unit_test_debug_init(void)
   ^
   static 
   1 warning generated.


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

    65	
  > 66	int __init kvm_unit_test_debug_init(void)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp