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

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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>
This commit is contained in:
Zhang Rui 2008-01-09 02:17:47 -05:00 committed by Len Brown
parent 3ce5445046
commit cfaf3747ff
1 changed files with 12 additions and 5 deletions
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17
drivers/acpi/processor_core.c
View file

@ -812,11 +812,18 @@ 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)) {
ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
return 0;
}
return 1;
/*
* 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;
}
static