On Sat, Jan 26, 2013 at 2:43 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> Make acpi_bus_scan_fixed() use device_attach() directly to attach
> drivers, if any, to the fixed devices in analogy with how
> acpi_bus_scan() works, which allows the last argument of
> acpi_add_single_object() to be dropped and the manipulation of the
> flags.match_driver bit to be moved to acpi_init_device_object()
> and acpi_device_add_finalize().
>
> After these changes all of the functions for the initialization
> and registration of struct acpi_device objects work in the same
> way for all of them.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> ---
> drivers/acpi/scan.c | 35 ++++++++++++++++++++++++-----------
> 1 file changed, 24 insertions(+), 11 deletions(-)
>
> Index: linux-pm/drivers/acpi/scan.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/scan.c
> +++ linux-pm/drivers/acpi/scan.c
> @@ -1437,19 +1437,21 @@ void acpi_init_device_object(struct acpi
> acpi_device_get_busid(device);
> acpi_device_set_id(device);
> acpi_bus_get_flags(device);
> + device->flags.match_driver = false;
> device_initialize(&device->dev);
> dev_set_uevent_suppress(&device->dev, true);
> }
>
> void acpi_device_add_finalize(struct acpi_device *device)
> {
> + device->flags.match_driver = true;
> dev_set_uevent_suppress(&device->dev, false);
> kobject_uevent(&device->dev.kobj, KOBJ_ADD);
> }
>
> static int acpi_add_single_object(struct acpi_device **child,
> acpi_handle handle, int type,
> - unsigned long long sta, bool match_driver)
> + unsigned long long sta)
> {
> int result;
> struct acpi_device *device;
> @@ -1465,7 +1467,6 @@ static int acpi_add_single_object(struct
> acpi_bus_get_power_flags(device);
> acpi_bus_get_wakeup_device_flags(device);
>
> - device->flags.match_driver = match_driver;
> result = acpi_device_add(device, acpi_device_release);
> if (result) {
> acpi_device_release(&device->dev);
> @@ -1558,12 +1559,10 @@ static acpi_status acpi_bus_check_add(ac
> return AE_CTRL_DEPTH;
> }
>
> - acpi_add_single_object(&device, handle, type, sta, false);
> + acpi_add_single_object(&device, handle, type, sta);
> if (!device)
> return AE_CTRL_DEPTH;
>
> - device->flags.match_driver = true;
> -
> out:
> if (!*return_value)
> *return_value = device;
nice cleanup.
Acked-by: Yinghai Lu <yinghai@xxxxxxxxxx>
> @@ -1681,25 +1680,39 @@ EXPORT_SYMBOL_GPL(acpi_bus_trim);
> static int acpi_bus_scan_fixed(void)
> {
> int result = 0;
> - struct acpi_device *device = NULL;
>
> /*
> * Enumerate all fixed-feature devices.
> */
> - if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) {
> + if (!(acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON)) {
> + struct acpi_device *device = NULL;
> +
> result = acpi_add_single_object(&device, NULL,
> ACPI_BUS_TYPE_POWER_BUTTON,
> - ACPI_STA_DEFAULT, true);
> + ACPI_STA_DEFAULT);
> + if (result)
> + return result;
> +
> + result = device_attach(&device->dev);
> + if (result < 0)
> + return result;
> +
> device_init_wakeup(&device->dev, true);
> }
>
> - if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
> + if (!(acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON)) {
> + struct acpi_device *device = NULL;
> +
> result = acpi_add_single_object(&device, NULL,
> ACPI_BUS_TYPE_SLEEP_BUTTON,
> - ACPI_STA_DEFAULT, true);
> + ACPI_STA_DEFAULT);
> + if (result)
> + return result;
> +
> + result = device_attach(&device->dev);
> }
>
> - return result;
> + return result < 0 ? result : 0;
> }
>
> int __init acpi_scan_init(void)
>
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
