#ifdef CONFIG_ACPI
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
{
- /* Find root host bridge */
- while (pdev->bus->self)
- pdev = pdev->bus->self;
-
- return acpi_get_pci_rootbridge_handle(pci_domain_nr(pdev->bus),
- pdev->bus->number);
+ struct pci_bus *pbus = pdev->bus;
+ /* Find a PCI root bus */
+ while (!pci_is_root_bus(pbus))
+ pbus = pbus->parent;
+ return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
+ pbus->number);
}
static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
{
- if (pbus->parent)
+ if (!pci_is_root_bus(pbus))
return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
pbus->number);