ACPICA: Add option to disable method return value validation and repair (d57b23ad) · Commits · 戴 / test

drivers/acpi/acpica/acglobal.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -126,6 +126,12 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE);
		*/
		u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE);

		/*
		* Disable runtime checking and repair of values returned by control methods.
		* Use only if the repair is causing a problem on a particular machine.
		*/
		u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_auto_repair, FALSE);

		/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */

		struct acpi_table_fadt acpi_gbl_FADT;

+12 −6

Original line number	Diff line number	Diff line
		@@ -193,14 +193,20 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node,
		}

		/*
		* 1) We have a return value, but if one wasn't expected, just exit, this is
		* not a problem. For example, if the "Implicit Return" feature is
		* enabled, methods will always return a value.
		* Return value validation and possible repair.
		*
		* 2) If the return value can be of any type, then we cannot perform any
		* validation, exit.
		* 1) Don't perform return value validation/repair if this feature
		* has been disabled via a global option.
		*
		* 2) We have a return value, but if one wasn't expected, just exit,
		* this is not a problem. For example, if the "Implicit Return"
		* feature is enabled, methods will always return a value.
		*
		* 3) If the return value can be of any type, then we cannot perform
		* any validation, just exit.
		*/
		if ((!predefined->info.expected_btypes) \|\|
		if (acpi_gbl_disable_auto_repair \|\|
		(!predefined->info.expected_btypes) \|\|
		(predefined->info.expected_btypes == ACPI_RTYPE_ALL)) {
		goto cleanup;
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -69,6 +69,7 @@ extern u32 acpi_gbl_trace_flags;
		extern u32 acpi_gbl_enable_aml_debug_object;
		extern u8 acpi_gbl_copy_dsdt_locally;
		extern u8 acpi_gbl_truncate_io_addresses;
		extern u8 acpi_gbl_disable_auto_repair;

		extern u32 acpi_current_gpe_count;
		extern struct acpi_table_fadt acpi_gbl_FADT;