static int kvm_hv_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data, bool host)
 {
-       struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;
+       struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv;
 
        switch (msr) {
        case HV_X64_MSR_VP_INDEX:
                if (!host || (u32)data >= KVM_MAX_VCPUS)
                        return 1;
-               hv->vp_index = (u32)data;
+               hv_vcpu->vp_index = (u32)data;
                break;
        case HV_X64_MSR_VP_ASSIST_PAGE: {
                u64 gfn;
                unsigned long addr;
 
                if (!(data & HV_X64_MSR_VP_ASSIST_PAGE_ENABLE)) {
-                       hv->hv_vapic = data;
+                       hv_vcpu->hv_vapic = data;
                        if (kvm_lapic_enable_pv_eoi(vcpu, 0))
                                return 1;
                        break;
                        return 1;
                if (__clear_user((void __user *)addr, PAGE_SIZE))
                        return 1;
-               hv->hv_vapic = data;
+               hv_vcpu->hv_vapic = data;
                kvm_vcpu_mark_page_dirty(vcpu, gfn);
                if (kvm_lapic_enable_pv_eoi(vcpu,
                                            gfn_to_gpa(gfn) | KVM_MSR_ENABLED))
        case HV_X64_MSR_VP_RUNTIME:
                if (!host)
                        return 1;
-               hv->runtime_offset = data - current_task_runtime_100ns();
+               hv_vcpu->runtime_offset = data - current_task_runtime_100ns();
                break;
        case HV_X64_MSR_SCONTROL:
        case HV_X64_MSR_SVERSION:
                          bool host)
 {
        u64 data = 0;
-       struct kvm_vcpu_hv *hv = &vcpu->arch.hyperv;
+       struct kvm_vcpu_hv *hv_vcpu = &vcpu->arch.hyperv;
 
        switch (msr) {
        case HV_X64_MSR_VP_INDEX:
-               data = hv->vp_index;
+               data = hv_vcpu->vp_index;
                break;
        case HV_X64_MSR_EOI:
                return kvm_hv_vapic_msr_read(vcpu, APIC_EOI, pdata);
        case HV_X64_MSR_TPR:
                return kvm_hv_vapic_msr_read(vcpu, APIC_TASKPRI, pdata);
        case HV_X64_MSR_VP_ASSIST_PAGE:
-               data = hv->hv_vapic;
+               data = hv_vcpu->hv_vapic;
                break;
        case HV_X64_MSR_VP_RUNTIME:
-               data = current_task_runtime_100ns() + hv->runtime_offset;
+               data = current_task_runtime_100ns() + hv_vcpu->runtime_offset;
                break;
        case HV_X64_MSR_SCONTROL:
        case HV_X64_MSR_SVERSION: