Messages in this thread | | | Date | Thu, 6 Aug 2015 08:58:40 -0700 | Subject | Re: [PATCH v3] PCI: Only enable IO window if supported | From | Yinghai Lu <> |
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On Wed, Aug 5, 2015 at 9:50 PM, Guenter Roeck <linux@roeck-us.net> 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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