ACPICA: Add per-table execution of module-level code

[cascardo/linux.git] / drivers / acpi / acpica / nsload.c

diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c
index c106916..14c953e 100644 (file)
--- a/drivers/acpi/acpica/nsload.c
+++ b/drivers/acpi/acpica/nsload.c
@@ -149,6 +149,23 @@ unlock:
        ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                          "**** Completed Table Object Initialization\n"));
 
+       /*
+        * Execute any module-level code that was detected during the table load
+        * phase. Although illegal since ACPI 2.0, there are many machines that
+        * contain this type of code. Each block of detected executable AML code
+        * outside of any control method is wrapped with a temporary control
+        * method object and placed on a global list. The methods on this list
+        * are executed below.
+        *
+        * This case executes the module-level code for each table immediately
+        * after the table has been loaded. This provides compatibility with
+        * other ACPI implementations. Optionally, the execution can be deferred
+        * until later, see acpi_initialize_objects.
+        */
+       if (!acpi_gbl_group_module_level_code) {
+               acpi_ns_exec_module_code_list();
+       }
+
        return_ACPI_STATUS(status);
 }