>--- a/drivers/pci/msi-xen.c Mon Sep 22 16:08:10 2008 +0100
>+++ b/drivers/pci/msi-xen.c Wed Sep 24 01:45:16 2008 +0800
>@@ -158,7 +158,11 @@ static int msi_unmap_pirq(struct pci_dev
> int rc;
>
> unmap.domid = msi_get_dev_owner(dev);
>- unmap.pirq = evtchn_get_xen_pirq(pirq);
>+ /* See comments in msi_map_pirq_to_vector, input parameter pirq
>+ * mean irq number only if the device belongs to dom0 itself.
>+ */
>+ if (unmap.domid == DOMID_SELF)
>+ unmap.pirq = evtchn_get_xen_pirq(pirq);
This seems to leave unmap.pirq uninitialized in the !DOMID_SELF case.
Otherwise, seems a reasonable alternative to doing it in pcifront/pciback.
Jan
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