PCI/ACPI: Pass acpi_pci_root to acpi_pci_drivers' add/remove interface

This patch changes .add/.remove interfaces of acpi_pci_driver.
In the current implementation acpi_handle is passed as a parameter
of .add/.remove interface.  However, the acpi_pci_root structure
contains more useful information than just the acpi_handle.  This
enables us to avoid some useless lookups in each acpi_pci_driver.

Note: This changes interfaces used by acpi_pci_register_driver(), an
exported symbol.  This patch updates all the in-kernel users, but any
out-of-kernel acpi_pci_register_driver() users will need updates.

[bhelgaas: changelog]
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index d710585e4a7f..2868a9ff6d07 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -87,7 +87,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver)
         list_add_tail(&driver->node, &acpi_pci_drivers);
         if (driver->add)
                 list_for_each_entry(root, &acpi_pci_roots, node) {
-                        driver->add(root->device->handle);
+                        driver->add(root);
                         n++;
                 }
         mutex_unlock(&acpi_pci_root_lock);
@@ -104,7 +104,7 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
         list_del(&driver->node);
         if (driver->remove)
                 list_for_each_entry(root, &acpi_pci_roots, node)
-                        driver->remove(root->device->handle);
+                        driver->remove(root);
         mutex_unlock(&acpi_pci_root_lock);
 }
 EXPORT_SYMBOL(acpi_pci_unregister_driver);
@@ -629,7 +629,7 @@ static int acpi_pci_root_start(struct acpi_device *device)
         mutex_lock(&acpi_pci_root_lock);
         list_for_each_entry(driver, &acpi_pci_drivers, node)
                 if (driver->add)
-                        driver->add(device->handle);
+                        driver->add(root);
         mutex_unlock(&acpi_pci_root_lock);
 
         pci_bus_add_devices(root->bus);
@@ -645,7 +645,7 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type)
         mutex_lock(&acpi_pci_root_lock);
         list_for_each_entry(driver, &acpi_pci_drivers, node)
                 if (driver->remove)
-                        driver->remove(root->device->handle);
+                        driver->remove(root);
         mutex_unlock(&acpi_pci_root_lock);
 
         device_set_run_wake(root->bus->bridge, false);