On Wed, Aug 5, 2015 at 9:50 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> If I understand you correctly, we might need to change the code
> in pci_read_bridge_io() as follows.
>
> From
>
> if (!(child->bus_flags & PCI_BUS_FLAGS_SUPPORTS_IO))
> return;
>
> to something like
>
> if (!(child->bus_flags & PCI_BUS_FLAGS_SUPPORTS_IO)) {
> if (dev->transparent)
> return;
> child->bus_flags |= PCI_BUS_FLAGS_SUPPORTS_IO;
> }
>
Then how about: the root bus really does not support IO PORT resource.
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