tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 1c925d2030afd354a02c23500386e620e662622b commit: 647daca25d24fb6eadc7b6cd680ad3e6eed0f3d5 [2106/2336] KVM: SVM: Add support for booting APs in an SEV-ES guest config: x86_64-rhel (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=647daca25d24fb6eadc7b6cd680ad3e6eed0f3d5 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 647daca25d24fb6eadc7b6cd680ad3e6eed0f3d5 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/x86/kvm/x86.c:7979:5: warning: no previous prototype for '__kvm_vcpu_halt' [-Wmissing-prototypes] 7979 | int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) | ^~~~~~~~~~~~~~~ vim +/__kvm_vcpu_halt +7979 arch/x86/kvm/x86.c 7978 > 7979 int __kvm_vcpu_halt(struct kvm_vcpu *vcpu, int state, int reason) 7980 { 7981 ++vcpu->stat.halt_exits; 7982 if (lapic_in_kernel(vcpu)) { 7983 vcpu->arch.mp_state = state; 7984 return 1; 7985 } else { 7986 vcpu->run->exit_reason = reason; 7987 return 0; 7988 } 7989 } 7990 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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