-bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
- struct kvm_lapic_irq *irq, int *r, struct dest_map *dest_map)
-{
- struct kvm_apic_map *map;
- unsigned long bitmap = 1;
- struct kvm_lapic **dst;
- int i;
- bool ret, x2apic_ipi;
+/* Return true if the interrupt can be handled by using *bitmap as index mask
+ * for valid destinations in *dst array.
+ * Return false if kvm_apic_map_get_dest_lapic did nothing useful.
+ * Note: we may have zero kvm_lapic destinations when we return true, which
+ * means that the interrupt should be dropped. In this case, *bitmap would be
+ * zero and *dst undefined.
+ */
+static inline bool kvm_apic_map_get_dest_lapic(struct kvm *kvm,
+ struct kvm_lapic **src, struct kvm_lapic_irq *irq,
+ struct kvm_apic_map *map, struct kvm_lapic ***dst,
+ unsigned long *bitmap)
+{
+ int i, lowest;
+ bool x2apic_ipi;
+ u16 cid;
+
+ if (irq->shorthand == APIC_DEST_SELF && src) {
+ *dst = src;
+ *bitmap = 1;
+ return true;
+ } else if (irq->shorthand)
+ return false;