diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 9e2b1f6..b94879d 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -797,6 +797,29 @@ static void acpiphp_set_acpi_region(struct acpiphp_slot *slot) } } +static void check_hotplug_bridge(struct acpiphp_slot *slot, struct pci_dev *dev) +{ + struct acpiphp_func *func; + + if (!dev->subordinate) + return; + + /* quirk, or pcie could set it already */ + if (dev->is_hotplug_bridge) + return; + + if (PCI_SLOT(dev->devfn) != slot->device) + return; + + list_for_each_entry(func, &slot->funcs, sibling) { + if (PCI_FUNC(dev->devfn) == func->function) { + /* check if this bridge has ejectable slots */ + if ((detect_ejectable_slots(func->handle) > 0)) + dev->is_hotplug_bridge = 1; + break; + } + } +} /** * enable_device - enable, configure a slot * @slot: slot to be enabled @@ -831,8 +854,10 @@ static int __ref enable_device(struct acpiphp_slot *slot) if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) { max = pci_scan_bridge(bus, dev, max, pass); - if (pass && dev->subordinate) + if (pass && dev->subordinate) { + check_hotplug_bridge(slot, dev); pci_bus_size_bridges(dev->subordinate); + } } } } |