Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=cfaf3747ff3d431fba33f75083b7f50f58ae22ff
Commit: cfaf3747ff3d431fba33f75083b7f50f58ae22ff
Parent: 3ce54450461bad18bbe1f9f5aa3ecd2f8e8d1235
Author: Zhang Rui <[EMAIL PROTECTED]>
AuthorDate: Wed Jan 9 02:17:47 2008 -0500
Committer: Len Brown <[EMAIL PROTECTED]>
CommitDate: Wed Jan 9 02:17:47 2008 -0500
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 <[EMAIL PROTECTED]>
Signed-off-by: Len Brown <[EMAIL PROTECTED]>
---
drivers/acpi/processor_core.c | 17 ++++++++++++-----
1 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index e48ee4f..c53113e 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -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
-
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