KVM: x86: Rename kvm_set_msi_irq() => kvm_msi_to_lapic_irq()

Rename kvm_set_msi_irq() to kvm_msi_to_lapic_irq() to better capture what
it actually does, e.g. it's _really_ easy to conflate kvm_set_msi_irq()
with kvm_set_msi().

Opportunistically delete the public declaration and export, as they are
no longer used/needed.

No functional change intended.

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Sean Christopherson <[e-mail]>

arch/x86/include/asm/kvm_host.h

···
 bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
 			     struct kvm_vcpu **dest_vcpu);
 
-void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
-		     struct kvm_lapic_irq *irq);
-
 static inline bool kvm_irq_is_postable(struct kvm_lapic_irq *irq)
 {
 	/* We can only post Fixed and LowPrio IRQs */

arch/x86/kvm/irq.c

···
 	return r;
 }
 
-void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
-		     struct kvm_lapic_irq *irq)
+static void kvm_msi_to_lapic_irq(struct kvm *kvm,
+				 struct kvm_kernel_irq_routing_entry *e,
+				 struct kvm_lapic_irq *irq)
 {
 	struct msi_msg msg = { .address_lo = e->msi.address_lo,
 			       .address_hi = e->msi.address_hi,
···
 	irq->level = 1;
 	irq->shorthand = APIC_DEST_NOSHORT;
 }
-EXPORT_SYMBOL_GPL(kvm_set_msi_irq);
 
 static inline bool kvm_msi_route_invalid(struct kvm *kvm,
 		struct kvm_kernel_irq_routing_entry *e)
···
 	if (!level)
 		return -1;
 
-	kvm_set_msi_irq(kvm, e, &irq);
+	kvm_msi_to_lapic_irq(kvm, e, &irq);
 
 	return kvm_irq_delivery_to_apic(kvm, NULL, &irq, NULL);
 }
···
 		if (kvm_msi_route_invalid(kvm, e))
 			return -EINVAL;
 
-		kvm_set_msi_irq(kvm, e, &irq);
+		kvm_msi_to_lapic_irq(kvm, e, &irq);
 
 		if (kvm_irq_delivery_to_apic_fast(kvm, NULL, &irq, &r, NULL))
 			return r;
···
 			if (entry->type != KVM_IRQ_ROUTING_MSI)
 				continue;
 
-			kvm_set_msi_irq(vcpu->kvm, entry, &irq);
+			kvm_msi_to_lapic_irq(vcpu->kvm, entry, &irq);
 
 			if (!irq.trig_mode)
 				continue;
···
 		return -EINVAL;
 
 	if (entry && entry->type == KVM_IRQ_ROUTING_MSI) {
-		kvm_set_msi_irq(kvm, entry, &irq);
+		kvm_msi_to_lapic_irq(kvm, entry, &irq);
 
 		/*
 		 * Force remapped mode if hardware doesn't support posting the