#define AOPOBJ_OBJECT_INITIALIZED   0x08
 #define AOPOBJ_SETUP_COMPLETE       0x10
 #define AOPOBJ_SINGLE_DATUM         0x20
-#define AOPOBJ_INVALID              0x40       /* Used if host OS won't allow an op_region address */
 
 /******************************************************************************
  *
 
        status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node),
                                           extra_desc->extra.aml_length,
                                           extra_desc->extra.aml_start);
-       if (ACPI_FAILURE(status)) {
-               return_ACPI_STATUS(status);
-       }
-
-       /* Validate the region address/length via the host OS */
-
-       status = acpi_os_validate_address(obj_desc->region.space_id,
-                                         obj_desc->region.address,
-                                         (acpi_size) obj_desc->region.length,
-                                         acpi_ut_get_node_name(node));
-
-       if (ACPI_FAILURE(status)) {
-               /*
-                * Invalid address/length. We will emit an error message and mark
-                * the region as invalid, so that it will cause an additional error if
-                * it is ever used. Then return AE_OK.
-                */
-               ACPI_EXCEPTION((AE_INFO, status,
-                               "During address validation of OpRegion [%4.4s]",
-                               node->name.ascii));
-               obj_desc->common.flags |= AOPOBJ_INVALID;
-               status = AE_OK;
-       }
-
        return_ACPI_STATUS(status);
 }
 
 
                }
        }
 
-       /* Exit if Address/Length have been disallowed by the host OS */
-
-       if (rgn_desc->common.flags & AOPOBJ_INVALID) {
-               return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
-       }
-
        /*
         * Exit now for SMBus address space, it has a non-linear address space
         * and the request cannot be directly validated
 
 acpi_status acpi_os_validate_interface(char *interface);
 acpi_status acpi_osi_invalidate(char* interface);
 
-acpi_status
-acpi_os_validate_address(u8 space_id, acpi_physical_address address,
-                        acpi_size length, char *name);
-
 u64 acpi_os_get_timer(void);
 
 acpi_status acpi_os_signal(u32 function, void *info);