I'm getting this build failure with this series: arch/x86/hyperv/mmu.c: In function ‘hyperv_setup_mmu_ops’: arch/x86/hyperv/mmu.c:256:3: error: ‘pv_mmu_ops’ undeclared (first use in this function) pv_mmu_ops.flush_tlb_others = hyperv_flush_tlb_others; ^ with the attached (rand-)config. Thanks, Ingo