if (RSDP->revision < 2) {
if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
acpi_tb_get_table_count (	struct rsdp_descriptor          *RSDP,	struct acpi_table_header        *RSDT){	u32                             pointer_size;	ACPI_FUNCTION_ENTRY ();	if (RSDP->revision < 2) {		pointer_size = sizeof (u32);	}	else {		pointer_size = sizeof (u64);	}	/*	 * Determine the number of tables pointed to by the RSDT/XSDT.	 * This is defined by the ACPI Specification to be the number of	 * pointers contained within the RSDT/XSDT.  The size of the pointers	 * is architecture-dependent.	 */	return ((RSDT->length - sizeof (struct acpi_table_header)) / pointer_size);}