tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue head: 2764011106d0436cb44702cfb0981339d68c3509 commit: 101c99f6506d7fc293111190d65fedadb711c9ea [74/77] KVM: VMX: enable IPI virtualization config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220503/202205030944.BOEY0IuK-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 09325d36061e42b495d1f4c7e933e260eac260ed) 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://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=101c99f6506d7fc293111190d65fedadb711c9ea git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git git fetch --no-tags kvm queue git checkout 101c99f6506d7fc293111190d65fedadb711c9ea # 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 as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> arch/x86/kvm/vmx/vmx.c:4405:5: 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:4405:1: 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 +4405 arch/x86/kvm/vmx/vmx.c 4404 > 4405 int vmx_get_pid_table_order(struct kvm *kvm) 4406 { 4407 return get_order(kvm->arch.max_vcpu_ids * sizeof(*to_kvm_vmx(kvm)->pid_table)); 4408 } 4409 -- 0-DAY CI Kernel Test Service https://01.org/lkp
