1 files changed, 47 insertions, 12 deletions

diff --git a/drivers/acpi/acpica/dsinit.c b/drivers/acpi/acpica/dsinit.c
index 96644d5ac0e1..aee5e45f6d35 100644
--- a/drivers/acpi/acpica/dsinit.c
+++ b/drivers/acpi/acpica/dsinit.c
@@ -83,8 +83,8 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
             (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 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
 
         /* 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 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
                 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:
@@ -170,7 +204,6 @@ acpi_ds_initialize_objects(u32 table_index,
 
         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 */
 
@@ -205,14 +238,16 @@ acpi_ds_initialize_objects(u32 table_index,
         }
 
         ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-                              "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n",
+                              "Table [%4.4s] (id %4.4X) - %4u Objects with %3u Devices, "
+                              "%3u Regions, %3u Methods (%u/%u/%u Serial/Non/Cvt)\n",
                               table->signature, owner_id, info.object_count,
-                              info.device_count, info.method_count,
-                              info.op_region_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);
 }