KVM: x86: use list_last_entry

To make the intention clearer, use list_last_entry instead of
list_entry.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/mmu.c

@@ -2354,7 +2354,7 @@ static bool prepare_zap_oldest_mmu_page(struct kvm *kvm,
 	if (list_empty(&kvm->arch.active_mmu_pages))
 		return false;
 
-	sp = list_entry(kvm->arch.active_mmu_pages.prev,
+	sp = list_last_entry(&kvm->arch.active_mmu_pages,
 			     struct kvm_mmu_page, link);
 	kvm_mmu_prepare_zap_page(kvm, sp, invalid_list);
 

arch/x86/kvm/vmx.c

@@ -6445,7 +6445,7 @@ static struct loaded_vmcs *nested_get_current_vmcs02(struct vcpu_vmx *vmx)
 
 	if (vmx->nested.vmcs02_num >= max(VMCS02_POOL_SIZE, 1)) {
 		/* Recycle the least recently used VMCS. */
-		item = list_entry(vmx->nested.vmcs02_pool.prev,
+		item = list_last_entry(&vmx->nested.vmcs02_pool,
 				       struct vmcs02_list, list);
 		item->vmptr = vmx->nested.current_vmptr;
 		list_move(&item->list, &vmx->nested.vmcs02_pool);