Messages in this thread | | | Date | Sat, 20 Aug 2022 08:13:49 +0800 | From | kernel test robot <> | Subject | [intel-tdx:guest-hardening-rebased 11/36] arch/x86/coco/tdx/tdx.c:298:14: warning: no previous prototype for function 'tdx_write_msr' |
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arch/x86/coco/tdx/tdx.c tree: https://github.com/intel/tdx.git guest-hardening-rebased head: d941f409a509c084250b50a3b5fc1c3c84a596a0 commit: a9189da9f0413f85d9072894ccb973cf785d2c0d [11/36] x86/tdx: Use direct paravirt call for wrmsrl config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220820/202208200851.ZfmiszQz-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 0ac597f3cacf60479ffd36b03766fa7462dabd78) 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/a9189da9f0413f85d9072894ccb973cf785d2c0d git remote add intel-tdx https://github.com/intel/tdx.git git fetch --no-tags intel-tdx guest-hardening-rebased git checkout a9189da9f0413f85d9072894ccb973cf785d2c0d # 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@intel.com>
All warnings (new ones prefixed by >>):
>> arch/x86/coco/tdx/tdx.c:298:14: warning: no previous prototype for function 'tdx_write_msr' [-Wmissing-prototypes] void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high) ^ arch/x86/coco/tdx/tdx.c:298:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high) ^ static 1 warning generated.
vim +/tdx_write_msr +298 arch/x86/coco/tdx/tdx.c
297 > 298 void notrace tdx_write_msr(unsigned int msr, u32 low, u32 high) 299 { 300 struct tdx_hypercall_args args = { 301 .r10 = TDX_HYPERCALL_STANDARD, 302 .r11 = hcall_func(EXIT_REASON_MSR_WRITE), 303 .r12 = msr, 304 .r13 = (u64)high << 32 | low, 305 }; 306 307 if (tdx_fast_tdcall_path_msr(msr)) 308 __tdx_hypercall(&args, 0); 309 else 310 native_write_msr(msr, low, high); 311 } 312
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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