ACPI_SERIAL_HEADER_SIZE
buffer_length += ACPI_SERIAL_HEADER_SIZE;
buffer_length += ACPI_SERIAL_HEADER_SIZE;
#define ACPI_SMBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_SMBUS_DATA_SIZE
#define ACPI_IPMI_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_IPMI_DATA_SIZE
#define ACPI_MAX_GSBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_MAX_GSBUS_DATA_SIZE