ACPI_SIG_SSDT
if (memcmp(header->signature, ACPI_SIG_SSDT, 4)) {
!ACPI_COMPARE_NAMESEG(table->signature, ACPI_SIG_SSDT)) {
ACPI_COMPARE_NAMESEG(&new_table_desc.signature, ACPI_SIG_SSDT)) {
(table->signature.ascii, ACPI_SIG_SSDT)
ACPI_COMPARE_NAMESEG(table->signature, ACPI_SIG_SSDT) ||
ACPI_SIG_PSDT, ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT,