KVM: x86: Consolidate PIT legacy test

Move the test for KVM_PIT_FLAGS_HPET_LEGACY into create_pit_timer
instead of replicating it on the caller site.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

arch/x86/kvm/i8254.c

@@ -344,7 +344,7 @@ static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
 	struct kvm_timer *pt = &ps->pit_timer;
 	s64 interval;
 
-	if (!irqchip_in_kernel(kvm))
+	if (!irqchip_in_kernel(kvm) || ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)
 		return;
 
 	interval = muldiv64(val, NSEC_PER_SEC, KVM_PIT_FREQ);
@@ -397,15 +397,11 @@ static void pit_load_count(struct kvm *kvm, int channel, u32 val)
 	case 1:
         /* FIXME: enhance mode 4 precision */
 	case 4:
-		if (!(ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)) {
 		create_pit_timer(kvm, val, 0);
-		}
 		break;
 	case 2:
 	case 3:
-		if (!(ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)){
 		create_pit_timer(kvm, val, 1);
-		}
 		break;
 	default:
 		destroy_pit_timer(kvm->arch.vpit);