Patchwork [4/7,RESEND] ACPI, PCI: Notify acpi_pci_drivers when hot-plugging PCI root bridges

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Submitter Taku Izumi
Date Aug. 10, 2012, 6:13 a.m.
Message ID <20120810151344.23304526.izumi.taku@jp.fujitsu.com>
Download mbox | patch
Permalink /patch/176365/
State Superseded
Headers show

Comments

Taku Izumi - Aug. 10, 2012, 6:13 a.m.
From: Jiang Liu <jiang.liu@huawei.com>

    ACPI, PCI: 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.
    
    -v2: Move add calling to acpi_pci_root_start by Yinghai
    
    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>

---
 drivers/acpi/pci_root.c |   11 +++++++++++
 1 file changed, 11 insertions(+)


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Patch

Index: Bjorn-next-0808/drivers/acpi/pci_root.c
===================================================================
--- Bjorn-next-0808.orig/drivers/acpi/pci_root.c
+++ Bjorn-next-0808/drivers/acpi/pci_root.c
@@ -626,14 +626,25 @@  end:
 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);