On Wed, Jul 29, 2015 at 1:18 PM, Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > On 07/29/2015 12:53 PM, Yinghai Lu wrote: >> >> On Wed, Jul 29, 2015 at 12:46 PM, Guenter Roeck <linux@xxxxxxxxxxxx> >> wrote: >>> >>> On 07/29/2015 12:30 PM, Yinghai Lu wrote: >>> >>>> >>>> so PCI_BUS_FLAGS_SUPPORTS_IO will never get set. >>>> >>> >>> excellent catch. Unfortunately, I don't know how to make it >>> work with the reversed flag. The idea here was that the flag >>> propagates from parent to child. This makes sense for an >>> "it doesn't work" flag to be inherited from the child, >>> but not for an "it works" flag. >>> >> >> also would be better if we can add has_ioport in hostbridge instead. >> like has_mem64 in https://patchwork.ozlabs.org/patch/500926/ >> and use >> >> to_pci_host_bridge(bus->bridge)->has_ioport >> >> to replace pci_root_has_io_resource() >> > > Is there a function to get the root bus ? Otherwise I still need to > find the root bus first. host-bridge and rootbus is one to one mapping. drivers/pci/host-bridge.c has related function. Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
