Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
drivers/pci/pci-driver.c | 11 ++++++++++-
drivers/pci/probe.c | 1 +
include/linux/pci.h | 1 +
3 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 9e1d295..93aff7f 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1268,11 +1268,20 @@ struct bus_type pci_bus_type = {
.pm = PCI_PM_OPS_PTR,
};
+struct bus_type pci_host_bridge_bus_type = {
+ .name = "pci_host_bridge",
+};
+
+static int __init pci_host_bridge_driver_init(void)
+{
+ return bus_register(&pci_host_bridge_bus_type);
+}
+postcore_initcall(pci_host_bridge_driver_init);
+
static int __init pci_driver_init(void)
{
return bus_register(&pci_bus_type);
}
-
postcore_initcall(pci_driver_init);
EXPORT_SYMBOL_GPL(pci_add_dynid);
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 87d1cb0..30b1624 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1660,6 +1660,7 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
goto err_out;
bridge->dev.parent = parent;
+ bridge->dev.bus = &pci_host_bridge_bus_type;
bridge->dev.release = pci_release_host_bridge_dev;
dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus);
error = device_register(&bridge->dev);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index be1de01..cc8b558 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -668,6 +668,7 @@ enum pcie_bus_config_types {
extern enum pcie_bus_config_types pcie_bus_config;
+extern struct bus_type pci_host_bridge_bus_type;
extern struct bus_type pci_bus_type;
/* Do NOT directly access these two variables, unless you are arch specific pci
--
1.7.7
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