ACPICA: Enable auto-serialization as a default kernel behavior.
The previous commit "ACPICA: Add auto-serialization support for ill-behaved
control methods" introduced the auto-serialization facility as a workaround
that can be enabled by "acpi_auto_serialize":
This feature marks control methods that create named objects as "serialized"
to avoid unwanted AE_ALREADY_EXISTS control method evaluation failures.
Enable method auto-serialization as the default kernel behavior. The new kernel
parameter is also changed from "acpi_auto_serialize" to "acpi_no_auto_serialize"
to reflect the default behavior.
References: https://bugzilla.kernel.org/show_bug.cgi?id=52191
References: http://www.spinics.net/lists/linux-acpi/msg49496.html
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 74a160c..a3109ff 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1540,20 +1540,20 @@
__setup("acpi_osi=", osi_setup);
/*
- * Enable the auto-serialization of named objects creation methods.
+ * Disable the auto-serialization of named objects creation methods.
*
- * This feature is disabled by default. It marks the AML control methods
+ * This feature is enabled by default. It marks the AML control methods
* that contain the opcodes to create named objects as "Serialized".
*/
-static int __init acpi_auto_serialize_setup(char *str)
+static int __init acpi_no_auto_serialize_setup(char *str)
{
- acpi_gbl_auto_serialize_methods = TRUE;
- pr_info("ACPI: auto-serialization enabled\n");
+ acpi_gbl_auto_serialize_methods = FALSE;
+ pr_info("ACPI: auto-serialization disabled\n");
return 1;
}
-__setup("acpi_auto_serialize", acpi_auto_serialize_setup);
+__setup("acpi_no_auto_serialize", acpi_no_auto_serialize_setup);
/* Check of resource interference between native drivers and ACPI
* OperationRegions (SystemIO and System Memory only).
