diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index a9a1a8f..1f0d625 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -165,37 +165,6 @@
 	acpi_processor_ppc_status &= ~PPC_REGISTERED;
 }
 
-/*
- * when registering a cpufreq driver with this ACPI processor driver, the
- * _PCT and _PSS structures are read out and written into struct
- * acpi_processor_performance.
- */
-static int acpi_processor_set_pdc (struct acpi_processor *pr)
-{
-	acpi_status             status = AE_OK;
-	u32			arg0_buf[3];
-	union acpi_object	arg0 = {ACPI_TYPE_BUFFER};
-	struct acpi_object_list no_object = {1, &arg0};
-	struct acpi_object_list *pdc;
-
-	ACPI_FUNCTION_TRACE("acpi_processor_set_pdc");
-
-	arg0.buffer.length = 12;
-	arg0.buffer.pointer = (u8 *) arg0_buf;
-	arg0_buf[0] = ACPI_PDC_REVISION_ID;
-	arg0_buf[1] = 0;
-	arg0_buf[2] = 0;
-
-	pdc = (pr->performance->pdc) ? pr->performance->pdc : &no_object;
-
-	status = acpi_evaluate_object(pr->handle, "_PDC", pdc, NULL);
-
-	if ((ACPI_FAILURE(status)) && (pr->performance->pdc))
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Error evaluating _PDC, using legacy perf. control...\n"));
-
-	return_VALUE(status);
-}
-
 
 static int
 acpi_processor_get_performance_control (
@@ -357,7 +326,7 @@
 	if (!pr || !pr->performance || !pr->handle)
 		return_VALUE(-EINVAL);
 
-	acpi_processor_set_pdc(pr);
+	acpi_processor_set_pdc(pr, pr->performance->pdc);
 
 	status = acpi_get_handle(pr->handle, "_PCT", &handle);
 	if (ACPI_FAILURE(status)) {