pci: Eliminate redundant PCIDevice::bus pointer

The bus pointer in PCIDevice is basically redundant with QOM information.
It's always initialized to the qdev_get_parent_bus(), the only difference
is the type.

Therefore this patch eliminates the field, instead creating a pci_get_bus()
helper to do the type mangling to derive it conveniently from the QOM
Device object underneath.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
David Gibson 2017-11-29 19:46:27 +11:00 committed by Michael S. Tsirkin
parent cdc57472dc
commit fd56e0612b
20 changed files with 102 additions and 92 deletions

View file

@ -3416,7 +3416,7 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp)
PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64,
&xhci->mem);
if (pci_bus_is_express(dev->bus) ||
if (pci_bus_is_express(pci_get_bus(dev)) ||
xhci_get_flag(xhci, XHCI_FLAG_FORCE_PCIE_ENDCAP)) {
ret = pcie_endpoint_cap_init(dev, 0xa0);
assert(ret > 0);