Commit cfaf3747 authored Jan 09, 2008 by Zhang Rui Committed by Len Brown Jan 09, 2008

ACPI: ACPI Exception (): AE_NOT_FOUND, Processor Device is not present

ACPI Exception (acpi_processor-0677): AE_NOT_FOUND, Processor Device is not
present [20060707]

According to the ACPI spec 6.3.7,
"If a device object (including the processor object) does not have an
_STA object, then OSPM assumes that all of the above bits are set,
(in other words, the device is present, enabled, shown in the UI
and funtioning)".

is_processor_present shoud return 1 if the processor device object exists
while it doesn't have an _STA object.

http://bugzilla.kernel.org/show_bug.cgi?id=8570



Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

parent 3ce54450

drivers/acpi/processor_core.c

+12 −5

Original line number	Diff line number	Diff line
		@@ -812,12 +812,19 @@ static int is_processor_present(acpi_handle handle)


		status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
		if (ACPI_FAILURE(status) \|\| !(sta & ACPI_STA_DEVICE_PRESENT)) {
		/*
		* if a processor object does not have an _STA object,
		* OSPM assumes that the processor is present.
		*/
		if (status == AE_NOT_FOUND)
		return 1;

		if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
		return 1;

		ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
		return 0;
		}
		return 1;
		}

		static
		int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)