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| author | Taku Izumi <izumi.taku@jp.fujitsu.com> | 2012-09-18 08:22:35 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-09-24 23:29:40 +0200 |
| commit | 55bfe3c0c561783655a8ff2f6f3f19ac1362b132 (patch) | |
| tree | 270c4b1344f93f417e46f6abd9a9c91a5a3e8c55 /drivers/acpi/pci_root.c | |
| parent | PCI/ACPI: Protect acpi_pci_drivers list with mutex (diff) | |
| download | linux-55bfe3c0c561783655a8ff2f6f3f19ac1362b132.tar.xz linux-55bfe3c0c561783655a8ff2f6f3f19ac1362b132.zip | |
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>
Diffstat (limited to 'drivers/acpi/pci_root.c')
| -rw-r--r-- | drivers/acpi/pci_root.c | 8 |
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); |