diff --git a/[refs] b/[refs]
index 4920b4ad2924..ca4e60981894 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 0406ad336c066190770cbf350b552d608e43ed09
+refs/heads/master: a4932299d03a1c20e58e4cc40a66fb0a048fb3a7
diff --git a/trunk/drivers/acpi/processor_pdc.c b/trunk/drivers/acpi/processor_pdc.c
index 3bbafe9576ae..e306ba9aa34e 100644
--- a/trunk/drivers/acpi/processor_pdc.c
+++ b/trunk/drivers/acpi/processor_pdc.c
@@ -125,6 +125,8 @@ acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
 	return status;
 }
 
+static int early_pdc_done;
+
 void acpi_processor_set_pdc(acpi_handle handle)
 {
 	struct acpi_object_list *obj_list;
@@ -132,6 +134,9 @@ void acpi_processor_set_pdc(acpi_handle handle)
 	if (arch_has_acpi_pdc() == false)
 		return;
 
+	if (early_pdc_done)
+		return;
+
 	obj_list = acpi_processor_alloc_pdc();
 	if (!obj_list)
 		return;
@@ -199,4 +204,6 @@ void __init acpi_early_processor_set_pdc(void)
 	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
 			    early_init_pdc, NULL, NULL, NULL);
+
+	early_pdc_done = 1;
 }