On Mon, Jun 4, 2012 at 11:02 PM, Richard Yang <weiyang@xxxxxxxxxxxxxxxxxx> wrote: > On Mon, Jun 04, 2012 at 10:18:46PM -0700, Yinghai Lu wrote: > > BTW, if the dev is the hostbrige->dev, why not pci_host_bridge contain a > field "dev"? we have that from 3.5-rc1 > > And, why root bus differs with other bus a lot? > Both root bus and other bus use self/bridge point to the "PCI BRIDGE" > device. > I think we can determine whether this is a root bus by bus->parent? self is for real pci dev bridge. bridge is the for pci_dev bridge generic device pointer. or host bridge device pointer. 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