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Commit f4b734c3 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

ACPI / hotplug: Drop unfinished global notification handling routines 



There are two global hotplug notification handling routines in bus.c,
acpi_bus_check_device() and acpi_bus_check_scope(), that have never
been finished and don't do anything useful, so drop them.

Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 443fc820

drivers/acpi/bus.c

+2 −62
Original line number Diff line number Diff line
@@ -329,58 +329,6 @@ static void acpi_bus_osc_support(void) 
                             Notification Handling

   -------------------------------------------------------------------------- */



static void acpi_bus_check_device(acpi_handle handle)

{

	struct acpi_device *device;

	acpi_status status;

	struct acpi_device_status old_status;



	if (acpi_bus_get_device(handle, &device))

		return;

	if (!device)

		return;



	old_status = device->status;



	/*

	 * Make sure this device's parent is present before we go about

	 * messing with the device.

	 */

	if (device->parent && !device->parent->status.present) {

		device->status = device->parent->status;

		return;

	}



	status = acpi_bus_get_status(device);

	if (ACPI_FAILURE(status))

		return;



	if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status))

		return;



	/*

	 * Device Insertion/Removal

	 */

	if ((device->status.present) && !(old_status.present)) {

		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n"));

		/* TBD: Handle device insertion */

	} else if (!(device->status.present) && (old_status.present)) {

		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device removal detected\n"));

		/* TBD: Handle device removal */

	}

}



static void acpi_bus_check_scope(acpi_handle handle)

{

	/* Status Change? */

	acpi_bus_check_device(handle);



	/*

	 * TBD: Enumerate child devices within this device's scope and

	 *       run acpi_bus_check_device()'s on them.

	 */

}



/**

 * acpi_bus_notify

 * ---------------
@@ -397,19 +345,11 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) 
	switch (type) {



	case ACPI_NOTIFY_BUS_CHECK:

		acpi_bus_check_scope(handle);

		/*

		 * TBD: We'll need to outsource certain events to non-ACPI

		 *      drivers via the device manager (device.c).

		 */

		/* TBD */

		break;



	case ACPI_NOTIFY_DEVICE_CHECK:

		acpi_bus_check_device(handle);

		/*

		 * TBD: We'll need to outsource certain events to non-ACPI

		 *      drivers via the device manager (device.c).

		 */

		/* TBD */

		break;



	case ACPI_NOTIFY_DEVICE_WAKE: