diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index aa179dc..23fe53b 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -488,9 +488,9 @@
  *
  * RETURN:      None
  *
- * DESCRIPTION: Perform the actual execution of a GPE control method.  This
- *              function is called from an invocation of acpi_os_exece
- *              (and therefore does NOT execute at interrupt level) so that
+ * DESCRIPTION: Perform the actual execution of a GPE control method. This
+ *              function is called from an invocation of acpi_os_execute and
+ *              therefore does NOT execute at interrupt level - so that
  *              the control method itself is not executed in the context of
  *              an interrupt handler.
  *
@@ -502,7 +502,7 @@
 	u32 gpe_number = 0;
 	acpi_status status;
 	struct acpi_gpe_event_info local_gpe_event_info;
-	struct acpi_parameter_info info;
+	struct acpi_evaluate_info *info;
 
 	ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method);
 
@@ -540,16 +540,29 @@
 	 */
 	if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) ==
 	    ACPI_GPE_DISPATCH_METHOD) {
-		/*
-		 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
-		 * control method that corresponds to this GPE
-		 */
-		info.node = local_gpe_event_info.dispatch.method_node;
-		info.parameters =
-		    ACPI_CAST_PTR(union acpi_operand_object *, gpe_event_info);
-		info.parameter_type = ACPI_PARAM_GPE;
 
-		status = acpi_ns_evaluate_by_handle(&info);
+		/* Allocate the evaluation information block */
+
+		info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+		if (!info) {
+			status = AE_NO_MEMORY;
+		} else {
+			/*
+			 * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx
+			 * control method that corresponds to this GPE
+			 */
+			info->prefix_node =
+			    local_gpe_event_info.dispatch.method_node;
+			info->parameters =
+			    ACPI_CAST_PTR(union acpi_operand_object *,
+					  gpe_event_info);
+			info->parameter_type = ACPI_PARAM_GPE;
+			info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+			status = acpi_ns_evaluate(info);
+			ACPI_FREE(info);
+		}
+
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"While evaluating method [%4.4s] for GPE[%2X]",
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 24e0b8d..6eef4ef 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -49,12 +49,13 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evmisc")
 
+/* Names for Notify() values, used for debug output */
 #ifdef ACPI_DEBUG_OUTPUT
 static const char *acpi_notify_value_names[] = {
 	"Bus Check",
 	"Device Check",
 	"Device Wake",
-	"Eject request",
+	"Eject Request",
 	"Device Check Light",
 	"Frequency Mismatch",
 	"Bus Mode Mismatch",
@@ -191,8 +192,9 @@
 		notify_info->notify.value = (u16) notify_value;
 		notify_info->notify.handler_obj = handler_obj;
 
-		status = acpi_os_execute(OSL_NOTIFY_HANDLER,
-					 acpi_ev_notify_dispatch, notify_info);
+		status =
+		    acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
+				    notify_info);
 		if (ACPI_FAILURE(status)) {
 			acpi_ut_delete_generic_state(notify_info);
 		}
@@ -345,8 +347,9 @@
 
 		/* Run the Global Lock thread which will signal all waiting threads */
 
-		status = acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER,
-					 acpi_ev_global_lock_thread, context);
+		status =
+		    acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER,
+				    acpi_ev_global_lock_thread, context);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Could not queue Global Lock thread"));
@@ -462,8 +465,9 @@
 	 * Acquire the global lock semaphore first.
 	 * Since this wait will block, we must release the interpreter
 	 */
-	status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,
-					       timeout);
+	status =
+	    acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore,
+					  timeout);
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index edf9d2e..094a17e 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -193,8 +193,8 @@
 acpi_status
 acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 {
-	struct acpi_parameter_info info;
-	union acpi_operand_object *params[3];
+	struct acpi_evaluate_info *info;
+	union acpi_operand_object *args[3];
 	union acpi_operand_object *region_obj2;
 	acpi_status status;
 
@@ -209,47 +209,60 @@
 		return_ACPI_STATUS(AE_OK);
 	}
 
-	/*
-	 * The _REG method has two arguments:
-	 *
-	 * Arg0, Integer: Operation region space ID
-	 *          Same value as region_obj->Region.space_id
-	 * Arg1, Integer: connection status
-	 *          1 for connecting the handler,
-	 *          0 for disconnecting the handler
-	 *          Passed as a parameter
-	 */
-	params[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
-	if (!params[0]) {
+	/* Allocate and initialize the evaluation information block */
+
+	info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
+	if (!info) {
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	params[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
-	if (!params[1]) {
+	info->prefix_node = region_obj2->extra.method_REG;
+	info->pathname = NULL;
+	info->parameters = args;
+	info->parameter_type = ACPI_PARAM_ARGS;
+	info->flags = ACPI_IGNORE_RETURN_VALUE;
+
+	/*
+	 * The _REG method has two arguments:
+	 *
+	 * Arg0 - Integer:
+	 *  Operation region space ID Same value as region_obj->Region.space_id
+	 *
+	 * Arg1 - Integer:
+	 *  connection status 1 for connecting the handler, 0 for disconnecting
+	 *  the handler (Passed as a parameter)
+	 */
+	args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+	if (!args[0]) {
 		status = AE_NO_MEMORY;
-		goto cleanup;
+		goto cleanup1;
+	}
+
+	args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
+	if (!args[1]) {
+		status = AE_NO_MEMORY;
+		goto cleanup2;
 	}
 
 	/* Setup the parameter objects */
 
-	params[0]->integer.value = region_obj->region.space_id;
-	params[1]->integer.value = function;
-	params[2] = NULL;
-
-	info.node = region_obj2->extra.method_REG;
-	info.parameters = params;
-	info.parameter_type = ACPI_PARAM_ARGS;
+	args[0]->integer.value = region_obj->region.space_id;
+	args[1]->integer.value = function;
+	args[2] = NULL;
 
 	/* Execute the method, no return value */
 
 	ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
-			(ACPI_TYPE_METHOD, info.node, NULL));
-	status = acpi_ns_evaluate_by_handle(&info);
+			(ACPI_TYPE_METHOD, info->prefix_node, NULL));
 
-	acpi_ut_remove_reference(params[1]);
+	status = acpi_ns_evaluate(info);
+	acpi_ut_remove_reference(args[1]);
 
-      cleanup:
-	acpi_ut_remove_reference(params[0]);
+      cleanup2:
+	acpi_ut_remove_reference(args[0]);
+
+      cleanup1:
+	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index 1cecd57..5b3c7a8 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -475,8 +475,9 @@
 
 	/* Find any "_REG" method associated with this region definition */
 
-	status = acpi_ns_search_node(*reg_name_ptr, node,
-				     ACPI_TYPE_METHOD, &method_node);
+	status =
+	    acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD,
+				     &method_node);
 	if (ACPI_SUCCESS(status)) {
 		/*
 		 * The _REG method is optional and there can be only one per region