Merge branches 'release', 'button-sysfs', 'misc', 'mismatch', 'randconfig' and 'toshi...
[sfrench/cifs-2.6.git] / drivers / acpi / processor_core.c
index 3501cb53857be066077663ed63f3fa2a1d670af2..36a68fa114e3e7b97b85585e40e3f74929110d79 100644 (file)
@@ -840,17 +840,19 @@ static int is_processor_present(acpi_handle handle)
 
 
        status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
-       /*
-        * 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"));
+       /*
+        * _STA is mandatory for a processor that supports hot plug
+        */
+       if (status == AE_NOT_FOUND)
+               ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+                               "Processor does not support hot plug\n"));
+       else
+               ACPI_EXCEPTION((AE_INFO, status,
+                               "Processor Device is not present"));
        return 0;
 }
 
@@ -886,8 +888,8 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
        return 0;
 }
 
-static void
-acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
+static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
+                                               u32 event, void *data)
 {
        struct acpi_processor *pr;
        struct acpi_device *device = NULL;