From c8e9afb124f61e0c9901801f4c95ae4208bd4536 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Tue, 18 Sep 2012 15:20:34 +0900
Subject: [PATCH] PCI/ACPI: Notify acpi_pci_drivers when hot-plugging PCI root
bridges
When hot-plugging PCI root bridge, acpi_pci_drivers' add()/remove()
methods should be invoked to notify registered drivers.
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/acpi/pci_root.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 68d679e212485..4bec13d9c2bfc 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -626,14 +626,25 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
static int acpi_pci_root_start(struct acpi_device *device)
{
struct acpi_pci_root *root = acpi_driver_data(device);
+ struct acpi_pci_driver *driver;
+
+ list_for_each_entry(driver, &acpi_pci_drivers, node)
+ if (driver->add)
+ driver->add(device->handle);
pci_bus_add_devices(root->bus);
+
return 0;
}
static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = acpi_driver_data(device);
+ struct acpi_pci_driver *driver;
+
+ list_for_each_entry(driver, &acpi_pci_drivers, node)
+ if (driver->remove)
+ driver->remove(root->device->handle);
device_set_run_wake(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);