linux-kernel - [intel-tdx:kvm-upstream-workaround 99/435] arch/x86/kvm/vmx/vmx.c:4410:5: error: no previous prototype for function 'vmx_get_pid_table

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Date:   Thu, 26 May 2022 13:59:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Chao Gao <chao.gao@...el.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Isaku Yamahata <isaku.yamahata@...el.com>,
        Zeng Guang <guang.zeng@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: [intel-tdx:kvm-upstream-workaround 99/435]
 arch/x86/kvm/vmx/vmx.c:4410:5: error: no previous prototype for function
 'vmx_get_pid_table_order'

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   0075383344a9c2bfaba7cca988c85008d92c4f8c
commit: 7325e60f0f39b6cffcc23ec74910cf0ec5ac1412 [99/435] KVM: VMX: enable IPI virtualization
config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220526/202205261324.RC40VHb7-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 3d546191ad9d7d2ad2c7928204b9de51deafa675)
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/7325e60f0f39b6cffcc23ec74910cf0ec5ac1412
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx kvm-upstream-workaround
        git checkout 7325e60f0f39b6cffcc23ec74910cf0ec5ac1412
        # 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=i386 SHELL=/bin/bash arch/x86/kvm/

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

Note: the intel-tdx/kvm-upstream-workaround HEAD 0075383344a9c2bfaba7cca988c85008d92c4f8c builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

>> arch/x86/kvm/vmx/vmx.c:4410:5: error: no previous prototype for function 'vmx_get_pid_table_order' [-Werror,-Wmissing-prototypes]
   int vmx_get_pid_table_order(struct kvm *kvm)
       ^
   arch/x86/kvm/vmx/vmx.c:4410:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int vmx_get_pid_table_order(struct kvm *kvm)
   ^
   static 
   1 error generated.


vim +/vmx_get_pid_table_order +4410 arch/x86/kvm/vmx/vmx.c

  4409	
> 4410	int vmx_get_pid_table_order(struct kvm *kvm)
  4411	{
  4412		return get_order(kvm->arch.max_vcpu_ids * sizeof(*to_kvm_vmx(kvm)->pid_table));
  4413	}
  4414	

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