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Commit 51af3b92 authored by Toshi Kani's avatar Toshi Kani Committed by Len Brown
Browse files

ACPI: Add _OST support for ACPI CPU hotplug 



Changed acpi_processor_hotplug_notify() to call ACPI _OST method
when ACPI CPU hotplug operation has completed.

Signed-off-by: default avatarToshi Kani <toshi.kani@hp.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent c4753e57

drivers/acpi/processor_driver.c

+20 −8
Original line number Diff line number Diff line
@@ -701,9 +701,9 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, 
{

	struct acpi_processor *pr;

	struct acpi_device *device = NULL;

	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */

	int result;





	switch (event) {

	case ACPI_NOTIFY_BUS_CHECK:

	case ACPI_NOTIFY_DEVICE_CHECK:
@@ -715,14 +715,18 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, 
		if (!is_processor_present(handle))

			break;



		if (acpi_bus_get_device(handle, &device)) {

		if (!acpi_bus_get_device(handle, &device))

			break;



		result = acpi_processor_device_add(handle, &device);

			if (result)

				printk(KERN_ERR PREFIX

					    "Unable to add the device\n");

		if (result) {

			printk(KERN_ERR PREFIX "Unable to add the device\n");

			break;

		}



		ost_code = ACPI_OST_SC_SUCCESS;

		break;



	case ACPI_NOTIFY_EJECT_REQUEST:

		ACPI_DEBUG_PRINT((ACPI_DB_INFO,

				  "received ACPI_NOTIFY_EJECT_REQUEST\n"));
@@ -736,15 +740,23 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, 
		if (!pr) {

			printk(KERN_ERR PREFIX

				    "Driver data is NULL, dropping EJECT\n");

			return;

			break;

		}



		/* REVISIT: update when eject is supported */

		ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;

		break;



	default:

		ACPI_DEBUG_PRINT((ACPI_DB_INFO,

				  "Unsupported event [0x%x]\n", event));

		break;



		/* non-hotplug event; possibly handled by other handler */

		return;

	}



	/* Inform firmware that the hotplug operation has completed */

	(void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);

	return;

}