tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 55f16e7a2a3e273da30ccadd01b074c054ceb6fe commit: c499a3120204c834ff963c43d90a5ff33194b34c [3233/3233] KVM: SVM: Add support for booting APs in an SEV-ES guest config: x86_64-randconfig-161-20251016 (https://download.01.org/0day-ci/archive/20251016/202510161956.PnDe2iFY-lkp@i...) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251016/202510161956.PnDe2iFY-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202510161956.PnDe2iFY-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/x86/kvm/x86.c:809:5: warning: no previous prototype for 'kvm_read_guest_page_mmu' [-Wmissing-prototypes] 809 | int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, | ^~~~~~~~~~~~~~~~~~~~~~~

...

arch/x86/kvm/x86.c:8661:5: warning: no previous prototype for '__kvm_vcpu_halt' [-Wmissing-prototypes] 8661 | int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) | ^~~~~~~~~~~~~~~

vim +/__kvm_vcpu_halt +8661 arch/x86/kvm/x86.c 8660

8661 int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) 8662 { 8663 ++vcpu->stat.halt_exits; 8664 if (lapic_in_kernel(vcpu)) { 8665 vcpu->arch.mp_state = state; 8666 return 1; 8667 } else { 8668 vcpu->run->exit_reason = reason; 8669 return 0; 8670 } 8671 } 8672

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki