Patchwork [part5,2/7] ACPI, PCI: Notify acpi_pci_drivers when hot-plugging PCI root bridges

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Submitter Yinghai Lu
Date Sept. 2, 2012, 9:56 p.m.
Message ID <1346622965-30937-3-git-send-email-yinghai@kernel.org>
Download mbox | patch
Permalink /patch/181255/
State Superseded
Headers show

Comments

Yinghai Lu - Sept. 2, 2012, 9:56 p.m.
From: Jiang Liu <jiang.liu@huawei.com>

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>
---
 drivers/acpi/pci_root.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

Patch

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 2aec08d..9ba516b 100644
--- a/drivers/acpi/pci_root.c
+++ b/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);
 
 	/* that root bus could be removed already */
 	if (!pci_find_bus(root->segment, root->secondary.start)) {