[PATCH] RFC: Use CONFIG_HAS_IOPORT around vcpu->pio_data

[Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>]

Signed-off-by: Hollis Blanchard <hollisb-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
---
pio_data is obviously arch-specific, but we might be able to get by with an
ifdef in kvm_vcpu_nopage() rather than needing an arch hook. Thoughts?

1 file changed, 2 insertions(+)
drivers/kvm/kvm_main.c |    2 ++


diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -674,8 +674,10 @@ static struct page *kvm_vcpu_nopage(stru
 	pgoff = ((address - vma->vm_start) >> PAGE_SHIFT) + vma->vm_pgoff;
 	if (pgoff == 0)
 		page = virt_to_page(vcpu->run);
+#ifdef CONFIG_HAS_IOPORT
 	else if (pgoff == KVM_PIO_PAGE_OFFSET)
 		page = virt_to_page(vcpu->pio_data);
+#endif /* CONFIG_HAS_IOPORT */
 	else
 		return NOPAGE_SIGBUS;
 	get_page(page);

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