__acpi_aml_writable
__acpi_aml_writable(&acpi_aml_io.out_crc, ACPI_AML_OUT_KERN);
__acpi_aml_writable(&acpi_aml_io.in_crc, ACPI_AML_IN_USER);
if (!__acpi_aml_writable(circ, flag)) {