--- zzzz-none-000/linux-3.10.107/drivers/acpi/acpica/dsinit.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/acpi/acpica/dsinit.c	2021-02-04 17:41:59.000000000 +0000
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2013, Intel Corp.
+ * Copyright (C) 2000 - 2015, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -83,8 +83,8 @@
 	    (struct acpi_init_walk_info *)context;
 	struct acpi_namespace_node *node =
 	    (struct acpi_namespace_node *)obj_handle;
-	acpi_object_type type;
 	acpi_status status;
+	union acpi_operand_object *obj_desc;
 
 	ACPI_FUNCTION_ENTRY();
 
@@ -100,9 +100,7 @@
 
 	/* And even then, we are only interested in a few object types */
 
-	type = acpi_ns_get_type(obj_handle);
-
-	switch (type) {
+	switch (acpi_ns_get_type(obj_handle)) {
 	case ACPI_TYPE_REGION:
 
 		status = acpi_ds_initialize_region(obj_handle);
@@ -117,8 +115,44 @@
 		break;
 
 	case ACPI_TYPE_METHOD:
-
+		/*
+		 * Auto-serialization support. We will examine each method that is
+		 * not_serialized to determine if it creates any Named objects. If
+		 * it does, it will be marked serialized to prevent problems if
+		 * the method is entered by two or more threads and an attempt is
+		 * made to create the same named object twice -- which results in
+		 * an AE_ALREADY_EXISTS exception and method abort.
+		 */
 		info->method_count++;
+		obj_desc = acpi_ns_get_attached_object(node);
+		if (!obj_desc) {
+			break;
+		}
+
+		/* Ignore if already serialized */
+
+		if (obj_desc->method.info_flags & ACPI_METHOD_SERIALIZED) {
+			info->serial_method_count++;
+			break;
+		}
+
+		if (acpi_gbl_auto_serialize_methods) {
+
+			/* Parse/scan method and serialize it if necessary */
+
+			acpi_ds_auto_serialize_method(node, obj_desc);
+			if (obj_desc->method.
+			    info_flags & ACPI_METHOD_SERIALIZED) {
+
+				/* Method was just converted to Serialized */
+
+				info->serial_method_count++;
+				info->serialized_method_count++;
+				break;
+			}
+		}
+
+		info->non_serial_method_count++;
 		break;
 
 	case ACPI_TYPE_DEVICE:
@@ -127,6 +161,7 @@
 		break;
 
 	default:
+
 		break;
 	}
 
@@ -169,11 +204,10 @@
 
 	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 			  "**** Starting initialization of namespace objects ****\n"));
-	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "Parsing all Control Methods:"));
 
 	/* Set all init info to zero */
 
-	ACPI_MEMSET(&info, 0, sizeof(struct acpi_init_walk_info));
+	memset(&info, 0, sizeof(struct acpi_init_walk_info));
 
 	info.owner_id = owner_id;
 	info.table_index = table_index;
@@ -203,15 +237,27 @@
 		return_ACPI_STATUS(status);
 	}
 
+	/* DSDT is always the first AML table */
+
+	if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT)) {
+		ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
+				      "\nInitializing Namespace objects:\n"));
+	}
+
+	/* Summary of objects initialized */
+
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n",
-			      table->signature, owner_id, info.object_count,
-			      info.device_count, info.method_count,
-			      info.op_region_count));
+			      "Table [%4.4s:%8.8s] (id %.2X) - %4u Objects with %3u Devices, "
+			      "%3u Regions, %4u Methods (%u/%u/%u Serial/Non/Cvt)\n",
+			      table->signature, table->oem_table_id, owner_id,
+			      info.object_count, info.device_count,
+			      info.op_region_count, info.method_count,
+			      info.serial_method_count,
+			      info.non_serial_method_count,
+			      info.serialized_method_count));
 
-	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
-			  "%u Methods, %u Regions\n", info.method_count,
-			  info.op_region_count));
+	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "%u Methods, %u Regions\n",
+			  info.method_count, info.op_region_count));
 
 	return_ACPI_STATUS(AE_OK);
 }