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: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
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c4753e57b7
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51af3b9202
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@ -701,9 +701,9 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
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{
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struct acpi_processor *pr;
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struct acpi_device *device = NULL;
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u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */
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int result;
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switch (event) {
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case ACPI_NOTIFY_BUS_CHECK:
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case ACPI_NOTIFY_DEVICE_CHECK:
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@ -715,14 +715,18 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
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if (!is_processor_present(handle))
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break;
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if (acpi_bus_get_device(handle, &device)) {
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result = acpi_processor_device_add(handle, &device);
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if (result)
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printk(KERN_ERR PREFIX
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"Unable to add the device\n");
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if (!acpi_bus_get_device(handle, &device))
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break;
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result = acpi_processor_device_add(handle, &device);
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if (result) {
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printk(KERN_ERR PREFIX "Unable to add the device\n");
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break;
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}
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ost_code = ACPI_OST_SC_SUCCESS;
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break;
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case ACPI_NOTIFY_EJECT_REQUEST:
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"received ACPI_NOTIFY_EJECT_REQUEST\n"));
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@ -736,15 +740,23 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
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if (!pr) {
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printk(KERN_ERR PREFIX
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"Driver data is NULL, dropping EJECT\n");
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return;
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break;
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}
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/* REVISIT: update when eject is supported */
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ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
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break;
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default:
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"Unsupported event [0x%x]\n", event));
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break;
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/* non-hotplug event; possibly handled by other handler */
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return;
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}
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/* Inform firmware that the hotplug operation has completed */
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(void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL);
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return;
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}
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