drivers/acpi/acpica/utobject.c

   1 /******************************************************************************
   2  *
   3  * Module Name: utobject - ACPI object create/delete/size/cache routines
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #include <acpi/acpi.h>
  45 #include "accommon.h"
  46 #include "acnamesp.h"
  47
  48 #define _COMPONENT          ACPI_UTILITIES
  49 ACPI_MODULE_NAME("utobject")
  50
  51 /* Local prototypes */
  52 static acpi_status
  53 acpi_ut_get_simple_object_size(union acpi_operand_object *obj,
  54                                acpi_size * obj_length);
  55
  56 static acpi_status
  57 acpi_ut_get_package_object_size(union acpi_operand_object *obj,
  58                                 acpi_size * obj_length);
  59
  60 static acpi_status
  61 acpi_ut_get_element_length(u8 object_type,
  62                            union acpi_operand_object *source_object,
  63                            union acpi_generic_state *state, void *context);
  64
  65 /*******************************************************************************
  66  *
  67  * FUNCTION:    acpi_ut_create_internal_object_dbg
  68  *
  69  * PARAMETERS:  module_name         - Source file name of caller
  70  *              line_number         - Line number of caller
  71  *              component_id        - Component type of caller
  72  *              type                - ACPI Type of the new object
  73  *
  74  * RETURN:      A new internal object, null on failure
  75  *
  76  * DESCRIPTION: Create and initialize a new internal object.
  77  *
  78  * NOTE:        We always allocate the worst-case object descriptor because
  79  *              these objects are cached, and we want them to be
  80  *              one-size-satisifies-any-request. This in itself may not be
  81  *              the most memory efficient, but the efficiency of the object
  82  *              cache should more than make up for this!
  83  *
  84  ******************************************************************************/
  85
  86 union acpi_operand_object *acpi_ut_create_internal_object_dbg(const char
  87                                                               *module_name,
  88                                                               u32 line_number,
  89                                                               u32 component_id,
  90                                                               acpi_object_type
  91                                                               type)
  92 {
  93         union acpi_operand_object *object;
  94         union acpi_operand_object *second_object;
  95
  96         ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg,
  97                                 acpi_ut_get_type_name(type));
  98
  99         /* Allocate the raw object descriptor */
 100
 101         object =
 102             acpi_ut_allocate_object_desc_dbg(module_name, line_number,
 103                                              component_id);
 104         if (!object) {
 105                 return_PTR(NULL);
 106         }
 107
 108         switch (type) {
 109         case ACPI_TYPE_REGION:
 110         case ACPI_TYPE_BUFFER_FIELD:
 111         case ACPI_TYPE_LOCAL_BANK_FIELD:
 112
 113                 /* These types require a secondary object */
 114
 115                 second_object = acpi_ut_allocate_object_desc_dbg(module_name,
 116                                                                  line_number,
 117                                                                  component_id);
 118                 if (!second_object) {
 119                         acpi_ut_delete_object_desc(object);
 120                         return_PTR(NULL);
 121                 }
 122
 123                 second_object->common.type = ACPI_TYPE_LOCAL_EXTRA;
 124                 second_object->common.reference_count = 1;
 125
 126                 /* Link the second object to the first */
 127
 128                 object->common.next_object = second_object;
 129                 break;
 130
 131         default:
 132
 133                 /* All others have no secondary object */
 134                 break;
 135         }
 136
 137         /* Save the object type in the object descriptor */
 138
 139         object->common.type = (u8) type;
 140
 141         /* Init the reference count */
 142
 143         object->common.reference_count = 1;
 144
 145         /* Any per-type initialization should go here */
 146
 147         return_PTR(object);
 148 }
 149
 150 /*******************************************************************************
 151  *
 152  * FUNCTION:    acpi_ut_create_package_object
 153  *
 154  * PARAMETERS:  count               - Number of package elements
 155  *
 156  * RETURN:      Pointer to a new Package object, null on failure
 157  *
 158  * DESCRIPTION: Create a fully initialized package object
 159  *
 160  ******************************************************************************/
 161
 162 union acpi_operand_object *acpi_ut_create_package_object(u32 count)
 163 {
 164         union acpi_operand_object *package_desc;
 165         union acpi_operand_object **package_elements;
 166
 167         ACPI_FUNCTION_TRACE_U32(ut_create_package_object, count);
 168
 169         /* Create a new Package object */
 170
 171         package_desc = acpi_ut_create_internal_object(ACPI_TYPE_PACKAGE);
 172         if (!package_desc) {
 173                 return_PTR(NULL);
 174         }
 175
 176         /*
 177          * Create the element array. Count+1 allows the array to be null
 178          * terminated.
 179          */
 180         package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count +
 181                                                  1) * sizeof(void *));
 182         if (!package_elements) {
 183                 acpi_ut_remove_reference(package_desc);
 184                 return_PTR(NULL);
 185         }
 186
 187         package_desc->package.count = count;
 188         package_desc->package.elements = package_elements;
 189         return_PTR(package_desc);
 190 }
 191
 192 /*******************************************************************************
 193  *
 194  * FUNCTION:    acpi_ut_create_integer_object
 195  *
 196  * PARAMETERS:  initial_value       - Initial value for the integer
 197  *
 198  * RETURN:      Pointer to a new Integer object, null on failure
 199  *
 200  * DESCRIPTION: Create an initialized integer object
 201  *
 202  ******************************************************************************/
 203
 204 union acpi_operand_object *acpi_ut_create_integer_object(u64 initial_value)
 205 {
 206         union acpi_operand_object *integer_desc;
 207
 208         ACPI_FUNCTION_TRACE(ut_create_integer_object);
 209
 210         /* Create and initialize a new integer object */
 211
 212         integer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
 213         if (!integer_desc) {
 214                 return_PTR(NULL);
 215         }
 216
 217         integer_desc->integer.value = initial_value;
 218         return_PTR(integer_desc);
 219 }
 220
 221 /*******************************************************************************
 222  *
 223  * FUNCTION:    acpi_ut_create_buffer_object
 224  *
 225  * PARAMETERS:  buffer_size            - Size of buffer to be created
 226  *
 227  * RETURN:      Pointer to a new Buffer object, null on failure
 228  *
 229  * DESCRIPTION: Create a fully initialized buffer object
 230  *
 231  ******************************************************************************/
 232
 233 union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size)
 234 {
 235         union acpi_operand_object *buffer_desc;
 236         u8 *buffer = NULL;
 237
 238         ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size);
 239
 240         /* Create a new Buffer object */
 241
 242         buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER);
 243         if (!buffer_desc) {
 244                 return_PTR(NULL);
 245         }
 246
 247         /* Create an actual buffer only if size > 0 */
 248
 249         if (buffer_size > 0) {
 250
 251                 /* Allocate the actual buffer */
 252
 253                 buffer = ACPI_ALLOCATE_ZEROED(buffer_size);
 254                 if (!buffer) {
 255                         ACPI_ERROR((AE_INFO, "Could not allocate size %u",
 256                                     (u32) buffer_size));
 257                         acpi_ut_remove_reference(buffer_desc);
 258                         return_PTR(NULL);
 259                 }
 260         }
 261
 262         /* Complete buffer object initialization */
 263
 264         buffer_desc->buffer.flags |= AOPOBJ_DATA_VALID;
 265         buffer_desc->buffer.pointer = buffer;
 266         buffer_desc->buffer.length = (u32) buffer_size;
 267
 268         /* Return the new buffer descriptor */
 269
 270         return_PTR(buffer_desc);
 271 }
 272
 273 /*******************************************************************************
 274  *
 275  * FUNCTION:    acpi_ut_create_string_object
 276  *
 277  * PARAMETERS:  string_size         - Size of string to be created. Does not
 278  *                                    include NULL terminator, this is added
 279  *                                    automatically.
 280  *
 281  * RETURN:      Pointer to a new String object
 282  *
 283  * DESCRIPTION: Create a fully initialized string object
 284  *
 285  ******************************************************************************/
 286
 287 union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size)
 288 {
 289         union acpi_operand_object *string_desc;
 290         char *string;
 291
 292         ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size);
 293
 294         /* Create a new String object */
 295
 296         string_desc = acpi_ut_create_internal_object(ACPI_TYPE_STRING);
 297         if (!string_desc) {
 298                 return_PTR(NULL);
 299         }
 300
 301         /*
 302          * Allocate the actual string buffer -- (Size + 1) for NULL terminator.
 303          * NOTE: Zero-length strings are NULL terminated
 304          */
 305         string = ACPI_ALLOCATE_ZEROED(string_size + 1);
 306         if (!string) {
 307                 ACPI_ERROR((AE_INFO, "Could not allocate size %u",
 308                             (u32) string_size));
 309                 acpi_ut_remove_reference(string_desc);
 310                 return_PTR(NULL);
 311         }
 312
 313         /* Complete string object initialization */
 314
 315         string_desc->string.pointer = string;
 316         string_desc->string.length = (u32) string_size;
 317
 318         /* Return the new string descriptor */
 319
 320         return_PTR(string_desc);
 321 }
 322
 323 /*******************************************************************************
 324  *
 325  * FUNCTION:    acpi_ut_valid_internal_object
 326  *
 327  * PARAMETERS:  object              - Object to be validated
 328  *
 329  * RETURN:      TRUE if object is valid, FALSE otherwise
 330  *
 331  * DESCRIPTION: Validate a pointer to be of type union acpi_operand_object
 332  *
 333  ******************************************************************************/
 334
 335 u8 acpi_ut_valid_internal_object(void *object)
 336 {
 337
 338         ACPI_FUNCTION_NAME(ut_valid_internal_object);
 339
 340         /* Check for a null pointer */
 341
 342         if (!object) {
 343                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "**** Null Object Ptr\n"));
 344                 return (FALSE);
 345         }
 346
 347         /* Check the descriptor type field */
 348
 349         switch (ACPI_GET_DESCRIPTOR_TYPE(object)) {
 350         case ACPI_DESC_TYPE_OPERAND:
 351
 352                 /* The object appears to be a valid union acpi_operand_object */
 353
 354                 return (TRUE);
 355
 356         default:
 357
 358                 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
 359                                   "%p is not not an ACPI operand obj [%s]\n",
 360                                   object, acpi_ut_get_descriptor_name(object)));
 361                 break;
 362         }
 363
 364         return (FALSE);
 365 }
 366
 367 /*******************************************************************************
 368  *
 369  * FUNCTION:    acpi_ut_allocate_object_desc_dbg
 370  *
 371  * PARAMETERS:  module_name         - Caller's module name (for error output)
 372  *              line_number         - Caller's line number (for error output)
 373  *              component_id        - Caller's component ID (for error output)
 374  *
 375  * RETURN:      Pointer to newly allocated object descriptor. Null on error
 376  *
 377  * DESCRIPTION: Allocate a new object descriptor. Gracefully handle
 378  *              error conditions.
 379  *
 380  ******************************************************************************/
 381
 382 void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
 383                                        u32 line_number, u32 component_id)
 384 {
 385         union acpi_operand_object *object;
 386
 387         ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg);
 388
 389         object = acpi_os_acquire_object(acpi_gbl_operand_cache);
 390         if (!object) {
 391                 ACPI_ERROR((module_name, line_number,
 392                             "Could not allocate an object descriptor"));
 393
 394                 return_PTR(NULL);
 395         }
 396
 397         /* Mark the descriptor type */
 398
 399         memset(object, 0, sizeof(union acpi_operand_object));
 400         ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
 401
 402         ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
 403                           object, (u32) sizeof(union acpi_operand_object)));
 404
 405         return_PTR(object);
 406 }
 407
 408 /*******************************************************************************
 409  *
 410  * FUNCTION:    acpi_ut_delete_object_desc
 411  *
 412  * PARAMETERS:  object          - An Acpi internal object to be deleted
 413  *
 414  * RETURN:      None.
 415  *
 416  * DESCRIPTION: Free an ACPI object descriptor or add it to the object cache
 417  *
 418  ******************************************************************************/
 419
 420 void acpi_ut_delete_object_desc(union acpi_operand_object *object)
 421 {
 422         ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object);
 423
 424         /* Object must be of type union acpi_operand_object */
 425
 426         if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) {
 427                 ACPI_ERROR((AE_INFO,
 428                             "%p is not an ACPI Operand object [%s]", object,
 429                             acpi_ut_get_descriptor_name(object)));
 430                 return_VOID;
 431         }
 432
 433         (void)acpi_os_release_object(acpi_gbl_operand_cache, object);
 434         return_VOID;
 435 }
 436
 437 /*******************************************************************************
 438  *
 439  * FUNCTION:    acpi_ut_get_simple_object_size
 440  *
 441  * PARAMETERS:  internal_object    - An ACPI operand object
 442  *              obj_length         - Where the length is returned
 443  *
 444  * RETURN:      Status
 445  *
 446  * DESCRIPTION: This function is called to determine the space required to
 447  *              contain a simple object for return to an external user.
 448  *
 449  *              The length includes the object structure plus any additional
 450  *              needed space.
 451  *
 452  ******************************************************************************/
 453
 454 static acpi_status
 455 acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
 456                                acpi_size * obj_length)
 457 {
 458         acpi_size length;
 459         acpi_size size;
 460         acpi_status status = AE_OK;
 461
 462         ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
 463
 464         /*
 465          * Handle a null object (Could be a uninitialized package
 466          * element -- which is legal)
 467          */
 468         if (!internal_object) {
 469                 *obj_length = sizeof(union acpi_object);
 470                 return_ACPI_STATUS(AE_OK);
 471         }
 472
 473         /* Start with the length of the Acpi object */
 474
 475         length = sizeof(union acpi_object);
 476
 477         if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
 478
 479                 /* Object is a named object (reference), just return the length */
 480
 481                 *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
 482                 return_ACPI_STATUS(status);
 483         }
 484
 485         /*
 486          * The final length depends on the object type
 487          * Strings and Buffers are packed right up against the parent object and
 488          * must be accessed bytewise or there may be alignment problems on
 489          * certain processors
 490          */
 491         switch (internal_object->common.type) {
 492         case ACPI_TYPE_STRING:
 493
 494                 length += (acpi_size) internal_object->string.length + 1;
 495                 break;
 496
 497         case ACPI_TYPE_BUFFER:
 498
 499                 length += (acpi_size) internal_object->buffer.length;
 500                 break;
 501
 502         case ACPI_TYPE_INTEGER:
 503         case ACPI_TYPE_PROCESSOR:
 504         case ACPI_TYPE_POWER:
 505
 506                 /* No extra data for these types */
 507
 508                 break;
 509
 510         case ACPI_TYPE_LOCAL_REFERENCE:
 511
 512                 switch (internal_object->reference.class) {
 513                 case ACPI_REFCLASS_NAME:
 514                         /*
 515                          * Get the actual length of the full pathname to this object.
 516                          * The reference will be converted to the pathname to the object
 517                          */
 518                         size =
 519                             acpi_ns_get_pathname_length(internal_object->
 520                                                         reference.node);
 521                         if (!size) {
 522                                 return_ACPI_STATUS(AE_BAD_PARAMETER);
 523                         }
 524
 525                         length += ACPI_ROUND_UP_TO_NATIVE_WORD(size);
 526                         break;
 527
 528                 default:
 529                         /*
 530                          * No other reference opcodes are supported.
 531                          * Notably, Locals and Args are not supported, but this may be
 532                          * required eventually.
 533                          */
 534                         ACPI_ERROR((AE_INFO,
 535                                     "Cannot convert to external object - "
 536                                     "unsupported Reference Class [%s] 0x%X in object %p",
 537                                     acpi_ut_get_reference_name(internal_object),
 538                                     internal_object->reference.class,
 539                                     internal_object));
 540                         status = AE_TYPE;
 541                         break;
 542                 }
 543                 break;
 544
 545         default:
 546
 547                 ACPI_ERROR((AE_INFO, "Cannot convert to external object - "
 548                             "unsupported type [%s] 0x%X in object %p",
 549                             acpi_ut_get_object_type_name(internal_object),
 550                             internal_object->common.type, internal_object));
 551                 status = AE_TYPE;
 552                 break;
 553         }
 554
 555         /*
 556          * Account for the space required by the object rounded up to the next
 557          * multiple of the machine word size. This keeps each object aligned
 558          * on a machine word boundary. (preventing alignment faults on some
 559          * machines.)
 560          */
 561         *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
 562         return_ACPI_STATUS(status);
 563 }
 564
 565 /*******************************************************************************
 566  *
 567  * FUNCTION:    acpi_ut_get_element_length
 568  *
 569  * PARAMETERS:  acpi_pkg_callback
 570  *
 571  * RETURN:      Status
 572  *
 573  * DESCRIPTION: Get the length of one package element.
 574  *
 575  ******************************************************************************/
 576
 577 static acpi_status
 578 acpi_ut_get_element_length(u8 object_type,
 579                            union acpi_operand_object *source_object,
 580                            union acpi_generic_state *state, void *context)
 581 {
 582         acpi_status status = AE_OK;
 583         struct acpi_pkg_info *info = (struct acpi_pkg_info *)context;
 584         acpi_size object_space;
 585
 586         switch (object_type) {
 587         case ACPI_COPY_TYPE_SIMPLE:
 588                 /*
 589                  * Simple object - just get the size (Null object/entry is handled
 590                  * here also) and sum it into the running package length
 591                  */
 592                 status =
 593                     acpi_ut_get_simple_object_size(source_object,
 594                                                    &object_space);
 595                 if (ACPI_FAILURE(status)) {
 596                         return (status);
 597                 }
 598
 599                 info->length += object_space;
 600                 break;
 601
 602         case ACPI_COPY_TYPE_PACKAGE:
 603
 604                 /* Package object - nothing much to do here, let the walk handle it */
 605
 606                 info->num_packages++;
 607                 state->pkg.this_target_obj = NULL;
 608                 break;
 609
 610         default:
 611
 612                 /* No other types allowed */
 613
 614                 return (AE_BAD_PARAMETER);
 615         }
 616
 617         return (status);
 618 }
 619
 620 /*******************************************************************************
 621  *
 622  * FUNCTION:    acpi_ut_get_package_object_size
 623  *
 624  * PARAMETERS:  internal_object     - An ACPI internal object
 625  *              obj_length          - Where the length is returned
 626  *
 627  * RETURN:      Status
 628  *
 629  * DESCRIPTION: This function is called to determine the space required to
 630  *              contain a package object for return to an external user.
 631  *
 632  *              This is moderately complex since a package contains other
 633  *              objects including packages.
 634  *
 635  ******************************************************************************/
 636
 637 static acpi_status
 638 acpi_ut_get_package_object_size(union acpi_operand_object *internal_object,
 639                                 acpi_size * obj_length)
 640 {
 641         acpi_status status;
 642         struct acpi_pkg_info info;
 643
 644         ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object);
 645
 646         info.length = 0;
 647         info.object_space = 0;
 648         info.num_packages = 1;
 649
 650         status = acpi_ut_walk_package_tree(internal_object, NULL,
 651                                            acpi_ut_get_element_length, &info);
 652         if (ACPI_FAILURE(status)) {
 653                 return_ACPI_STATUS(status);
 654         }
 655
 656         /*
 657          * We have handled all of the objects in all levels of the package.
 658          * just add the length of the package objects themselves.
 659          * Round up to the next machine word.
 660          */
 661         info.length += ACPI_ROUND_UP_TO_NATIVE_WORD(sizeof(union acpi_object)) *
 662             (acpi_size) info.num_packages;
 663
 664         /* Return the total package length */
 665
 666         *obj_length = info.length;
 667         return_ACPI_STATUS(status);
 668 }
 669
 670 /*******************************************************************************
 671  *
 672  * FUNCTION:    acpi_ut_get_object_size
 673  *
 674  * PARAMETERS:  internal_object     - An ACPI internal object
 675  *              obj_length          - Where the length will be returned
 676  *
 677  * RETURN:      Status
 678  *
 679  * DESCRIPTION: This function is called to determine the space required to
 680  *              contain an object for return to an API user.
 681  *
 682  ******************************************************************************/
 683
 684 acpi_status
 685 acpi_ut_get_object_size(union acpi_operand_object *internal_object,
 686                         acpi_size * obj_length)
 687 {
 688         acpi_status status;
 689
 690         ACPI_FUNCTION_ENTRY();
 691
 692         if ((ACPI_GET_DESCRIPTOR_TYPE(internal_object) ==
 693              ACPI_DESC_TYPE_OPERAND)
 694             && (internal_object->common.type == ACPI_TYPE_PACKAGE)) {
 695                 status =
 696                     acpi_ut_get_package_object_size(internal_object,
 697                                                     obj_length);
 698         } else {
 699                 status =
 700                     acpi_ut_get_simple_object_size(internal_object, obj_length);
 701         }
 702
 703         return (status);
 704 }