1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 2 /******************************************************************************* 3 * 4 * Module Name: nsaccess - Top-level functions for accessing ACPI namespace 5 * 6 ******************************************************************************/ 7 8 #include <acpi/acpi.h> 9 #include "accommon.h" 10 #include "amlcode.h" 11 #include "acnamesp.h" 12 #include "acdispat.h" 13 14 #ifdef ACPI_ASL_COMPILER 15 #include "acdisasm.h" 16 #endif 17 18 #define _COMPONENT ACPI_NAMESPACE 19 ACPI_MODULE_NAME("nsaccess") 20 21 /******************************************************************************* 22 * 23 * FUNCTION: acpi_ns_root_initialize 24 * 25 * PARAMETERS: None 26 * 27 * RETURN: Status 28 * 29 * DESCRIPTION: Allocate and initialize the default root named objects 30 * 31 * MUTEX: Locks namespace for entire execution 32 * 33 ******************************************************************************/ acpi_ns_root_initialize(void)34 acpi_status acpi_ns_root_initialize(void) 35 { 36 acpi_status status; 37 const struct acpi_predefined_names *init_val = NULL; 38 struct acpi_namespace_node *new_node; 39 struct acpi_namespace_node *prev_node = NULL; 40 union acpi_operand_object *obj_desc; 41 acpi_string val = NULL; 42 43 ACPI_FUNCTION_TRACE(ns_root_initialize); 44 45 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 46 if (ACPI_FAILURE(status)) { 47 return_ACPI_STATUS(status); 48 } 49 50 /* 51 * The global root ptr is initially NULL, so a non-NULL value indicates 52 * that acpi_ns_root_initialize() has already been called; just return. 53 */ 54 if (acpi_gbl_root_node) { 55 status = AE_OK; 56 goto unlock_and_exit; 57 } 58 59 /* 60 * Tell the rest of the subsystem that the root is initialized 61 * (This is OK because the namespace is locked) 62 */ 63 acpi_gbl_root_node = &acpi_gbl_root_node_struct; 64 65 /* Enter the predefined names in the name table */ 66 67 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 68 "Entering predefined entries into namespace\n")); 69 70 /* 71 * Create the initial (default) namespace. 72 * This namespace looks like something similar to this: 73 * 74 * ACPI Namespace (from Namespace Root): 75 * 0 _GPE Scope 00203160 00 76 * 0 _PR_ Scope 002031D0 00 77 * 0 _SB_ Device 00203240 00 Notify Object: 0020ADD8 78 * 0 _SI_ Scope 002032B0 00 79 * 0 _TZ_ Device 00203320 00 80 * 0 _REV Integer 00203390 00 = 0000000000000002 81 * 0 _OS_ String 00203488 00 Len 14 "Microsoft Windows NT" 82 * 0 _GL_ Mutex 00203580 00 Object 002035F0 83 * 0 _OSI Method 00203678 00 Args 1 Len 0000 Aml 00000000 84 */ 85 for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { 86 status = AE_OK; 87 88 /* _OSI is optional for now, will be permanent later */ 89 90 if (!strcmp(init_val->name, "_OSI") 91 && !acpi_gbl_create_osi_method) { 92 continue; 93 } 94 95 /* 96 * Create, init, and link the new predefined name 97 * Note: No need to use acpi_ns_lookup here because all the 98 * predefined names are at the root level. It is much easier to 99 * just create and link the new node(s) here. 100 */ 101 new_node = 102 acpi_ns_create_node(*ACPI_CAST_PTR(u32, init_val->name)); 103 if (!new_node) { 104 status = AE_NO_MEMORY; 105 goto unlock_and_exit; 106 } 107 108 new_node->descriptor_type = ACPI_DESC_TYPE_NAMED; 109 new_node->type = init_val->type; 110 111 if (!prev_node) { 112 acpi_gbl_root_node_struct.child = new_node; 113 } else { 114 prev_node->peer = new_node; 115 } 116 117 new_node->parent = &acpi_gbl_root_node_struct; 118 prev_node = new_node; 119 120 /* 121 * Name entered successfully. If entry in pre_defined_names[] specifies 122 * an initial value, create the initial value. 123 */ 124 if (init_val->val) { 125 status = acpi_os_predefined_override(init_val, &val); 126 if (ACPI_FAILURE(status)) { 127 ACPI_ERROR((AE_INFO, 128 "Could not override predefined %s", 129 init_val->name)); 130 } 131 132 if (!val) { 133 val = init_val->val; 134 } 135 136 /* 137 * Entry requests an initial value, allocate a 138 * descriptor for it. 139 */ 140 obj_desc = 141 acpi_ut_create_internal_object(init_val->type); 142 if (!obj_desc) { 143 status = AE_NO_MEMORY; 144 goto unlock_and_exit; 145 } 146 147 /* 148 * Convert value string from table entry to 149 * internal representation. Only types actually 150 * used for initial values are implemented here. 151 */ 152 switch (init_val->type) { 153 case ACPI_TYPE_METHOD: 154 155 obj_desc->method.param_count = 156 (u8) ACPI_TO_INTEGER(val); 157 obj_desc->common.flags |= AOPOBJ_DATA_VALID; 158 159 #if defined (ACPI_ASL_COMPILER) 160 161 /* Save the parameter count for the iASL compiler */ 162 163 new_node->value = obj_desc->method.param_count; 164 #else 165 /* Mark this as a very SPECIAL method (_OSI) */ 166 167 obj_desc->method.info_flags = 168 ACPI_METHOD_INTERNAL_ONLY; 169 obj_desc->method.dispatch.implementation = 170 acpi_ut_osi_implementation; 171 #endif 172 break; 173 174 case ACPI_TYPE_INTEGER: 175 176 obj_desc->integer.value = ACPI_TO_INTEGER(val); 177 break; 178 179 case ACPI_TYPE_STRING: 180 181 /* Build an object around the static string */ 182 183 obj_desc->string.length = (u32)strlen(val); 184 obj_desc->string.pointer = val; 185 obj_desc->common.flags |= AOPOBJ_STATIC_POINTER; 186 break; 187 188 case ACPI_TYPE_MUTEX: 189 190 obj_desc->mutex.node = new_node; 191 obj_desc->mutex.sync_level = 192 (u8) (ACPI_TO_INTEGER(val) - 1); 193 194 /* Create a mutex */ 195 196 status = 197 acpi_os_create_mutex(&obj_desc->mutex. 198 os_mutex); 199 if (ACPI_FAILURE(status)) { 200 acpi_ut_remove_reference(obj_desc); 201 goto unlock_and_exit; 202 } 203 204 /* Special case for ACPI Global Lock */ 205 206 if (strcmp(init_val->name, "_GL_") == 0) { 207 acpi_gbl_global_lock_mutex = obj_desc; 208 209 /* Create additional counting semaphore for global lock */ 210 211 status = 212 acpi_os_create_semaphore(1, 0, 213 &acpi_gbl_global_lock_semaphore); 214 if (ACPI_FAILURE(status)) { 215 acpi_ut_remove_reference 216 (obj_desc); 217 goto unlock_and_exit; 218 } 219 } 220 break; 221 222 default: 223 224 ACPI_ERROR((AE_INFO, 225 "Unsupported initial type value 0x%X", 226 init_val->type)); 227 acpi_ut_remove_reference(obj_desc); 228 obj_desc = NULL; 229 continue; 230 } 231 232 /* Store pointer to value descriptor in the Node */ 233 234 status = acpi_ns_attach_object(new_node, obj_desc, 235 obj_desc->common.type); 236 237 /* Remove local reference to the object */ 238 239 acpi_ut_remove_reference(obj_desc); 240 } 241 } 242 243 unlock_and_exit: 244 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 245 246 /* Save a handle to "_GPE", it is always present */ 247 248 if (ACPI_SUCCESS(status)) { 249 status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH, 250 &acpi_gbl_fadt_gpe_device); 251 } 252 253 return_ACPI_STATUS(status); 254 } 255 256 /******************************************************************************* 257 * 258 * FUNCTION: acpi_ns_lookup 259 * 260 * PARAMETERS: scope_info - Current scope info block 261 * pathname - Search pathname, in internal format 262 * (as represented in the AML stream) 263 * type - Type associated with name 264 * interpreter_mode - IMODE_LOAD_PASS2 => add name if not found 265 * flags - Flags describing the search restrictions 266 * walk_state - Current state of the walk 267 * return_node - Where the Node is placed (if found 268 * or created successfully) 269 * 270 * RETURN: Status 271 * 272 * DESCRIPTION: Find or enter the passed name in the name space. 273 * Log an error if name not found in Exec mode. 274 * 275 * MUTEX: Assumes namespace is locked. 276 * 277 ******************************************************************************/ 278 279 acpi_status acpi_ns_lookup(union acpi_generic_state * scope_info,char * pathname,acpi_object_type type,acpi_interpreter_mode interpreter_mode,u32 flags,struct acpi_walk_state * walk_state,struct acpi_namespace_node ** return_node)280 acpi_ns_lookup(union acpi_generic_state *scope_info, 281 char *pathname, 282 acpi_object_type type, 283 acpi_interpreter_mode interpreter_mode, 284 u32 flags, 285 struct acpi_walk_state *walk_state, 286 struct acpi_namespace_node **return_node) 287 { 288 acpi_status status; 289 char *path = pathname; 290 char *external_path; 291 struct acpi_namespace_node *prefix_node; 292 struct acpi_namespace_node *current_node = NULL; 293 struct acpi_namespace_node *this_node = NULL; 294 u32 num_segments; 295 u32 num_carats; 296 acpi_name simple_name; 297 acpi_object_type type_to_check_for; 298 acpi_object_type this_search_type; 299 u32 search_parent_flag = ACPI_NS_SEARCH_PARENT; 300 u32 local_flags; 301 acpi_interpreter_mode local_interpreter_mode; 302 303 ACPI_FUNCTION_TRACE(ns_lookup); 304 305 if (!return_node) { 306 return_ACPI_STATUS(AE_BAD_PARAMETER); 307 } 308 309 local_flags = flags & 310 ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_OVERRIDE_IF_FOUND | 311 ACPI_NS_SEARCH_PARENT); 312 *return_node = ACPI_ENTRY_NOT_FOUND; 313 acpi_gbl_ns_lookup_count++; 314 315 if (!acpi_gbl_root_node) { 316 return_ACPI_STATUS(AE_NO_NAMESPACE); 317 } 318 319 /* Get the prefix scope. A null scope means use the root scope */ 320 321 if ((!scope_info) || (!scope_info->scope.node)) { 322 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 323 "Null scope prefix, using root node (%p)\n", 324 acpi_gbl_root_node)); 325 326 prefix_node = acpi_gbl_root_node; 327 } else { 328 prefix_node = scope_info->scope.node; 329 if (ACPI_GET_DESCRIPTOR_TYPE(prefix_node) != 330 ACPI_DESC_TYPE_NAMED) { 331 ACPI_ERROR((AE_INFO, "%p is not a namespace node [%s]", 332 prefix_node, 333 acpi_ut_get_descriptor_name(prefix_node))); 334 return_ACPI_STATUS(AE_AML_INTERNAL); 335 } 336 337 if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { 338 /* 339 * This node might not be a actual "scope" node (such as a 340 * Device/Method, etc.) It could be a Package or other object 341 * node. Backup up the tree to find the containing scope node. 342 */ 343 while (!acpi_ns_opens_scope(prefix_node->type) && 344 prefix_node->type != ACPI_TYPE_ANY) { 345 prefix_node = prefix_node->parent; 346 } 347 } 348 } 349 350 /* Save type. TBD: may be no longer necessary */ 351 352 type_to_check_for = type; 353 354 /* 355 * Begin examination of the actual pathname 356 */ 357 if (!pathname) { 358 359 /* A Null name_path is allowed and refers to the root */ 360 361 num_segments = 0; 362 this_node = acpi_gbl_root_node; 363 path = ""; 364 365 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 366 "Null Pathname (Zero segments), Flags=%X\n", 367 flags)); 368 } else { 369 /* 370 * Name pointer is valid (and must be in internal name format) 371 * 372 * Check for scope prefixes: 373 * 374 * As represented in the AML stream, a namepath consists of an 375 * optional scope prefix followed by a name segment part. 376 * 377 * If present, the scope prefix is either a Root Prefix (in 378 * which case the name is fully qualified), or one or more 379 * Parent Prefixes (in which case the name's scope is relative 380 * to the current scope). 381 */ 382 if (*path == (u8) AML_ROOT_PREFIX) { 383 384 /* Pathname is fully qualified, start from the root */ 385 386 this_node = acpi_gbl_root_node; 387 search_parent_flag = ACPI_NS_NO_UPSEARCH; 388 389 /* Point to name segment part */ 390 391 path++; 392 393 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 394 "Path is absolute from root [%p]\n", 395 this_node)); 396 } else { 397 /* Pathname is relative to current scope, start there */ 398 399 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 400 "Searching relative to prefix scope [%4.4s] (%p)\n", 401 acpi_ut_get_node_name(prefix_node), 402 prefix_node)); 403 404 /* 405 * Handle multiple Parent Prefixes (carat) by just getting 406 * the parent node for each prefix instance. 407 */ 408 this_node = prefix_node; 409 num_carats = 0; 410 while (*path == (u8) AML_PARENT_PREFIX) { 411 412 /* Name is fully qualified, no search rules apply */ 413 414 search_parent_flag = ACPI_NS_NO_UPSEARCH; 415 416 /* 417 * Point past this prefix to the name segment 418 * part or the next Parent Prefix 419 */ 420 path++; 421 422 /* Backup to the parent node */ 423 424 num_carats++; 425 this_node = this_node->parent; 426 if (!this_node) { 427 /* 428 * Current scope has no parent scope. Externalize 429 * the internal path for error message. 430 */ 431 status = 432 acpi_ns_externalize_name 433 (ACPI_UINT32_MAX, pathname, NULL, 434 &external_path); 435 if (ACPI_SUCCESS(status)) { 436 ACPI_ERROR((AE_INFO, 437 "%s: Path has too many parent prefixes (^)", 438 external_path)); 439 440 ACPI_FREE(external_path); 441 } 442 443 return_ACPI_STATUS(AE_NOT_FOUND); 444 } 445 } 446 447 if (search_parent_flag == ACPI_NS_NO_UPSEARCH) { 448 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 449 "Search scope is [%4.4s], path has %u carat(s)\n", 450 acpi_ut_get_node_name 451 (this_node), num_carats)); 452 } 453 } 454 455 /* 456 * Determine the number of ACPI name segments in this pathname. 457 * 458 * The segment part consists of either: 459 * - A Null name segment (0) 460 * - A dual_name_prefix followed by two 4-byte name segments 461 * - A multi_name_prefix followed by a byte indicating the 462 * number of segments and the segments themselves. 463 * - A single 4-byte name segment 464 * 465 * Examine the name prefix opcode, if any, to determine the number of 466 * segments. 467 */ 468 switch (*path) { 469 case 0: 470 /* 471 * Null name after a root or parent prefixes. We already 472 * have the correct target node and there are no name segments. 473 */ 474 num_segments = 0; 475 type = this_node->type; 476 477 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 478 "Prefix-only Pathname (Zero name segments), Flags=%X\n", 479 flags)); 480 break; 481 482 case AML_DUAL_NAME_PREFIX: 483 484 /* More than one name_seg, search rules do not apply */ 485 486 search_parent_flag = ACPI_NS_NO_UPSEARCH; 487 488 /* Two segments, point to first name segment */ 489 490 num_segments = 2; 491 path++; 492 493 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 494 "Dual Pathname (2 segments, Flags=%X)\n", 495 flags)); 496 break; 497 498 case AML_MULTI_NAME_PREFIX: 499 500 /* More than one name_seg, search rules do not apply */ 501 502 search_parent_flag = ACPI_NS_NO_UPSEARCH; 503 504 /* Extract segment count, point to first name segment */ 505 506 path++; 507 num_segments = (u32) (u8) * path; 508 path++; 509 510 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 511 "Multi Pathname (%u Segments, Flags=%X)\n", 512 num_segments, flags)); 513 break; 514 515 default: 516 /* 517 * Not a Null name, no Dual or Multi prefix, hence there is 518 * only one name segment and Pathname is already pointing to it. 519 */ 520 num_segments = 1; 521 522 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 523 "Simple Pathname (1 segment, Flags=%X)\n", 524 flags)); 525 break; 526 } 527 528 ACPI_DEBUG_EXEC(acpi_ns_print_pathname(num_segments, path)); 529 } 530 531 /* 532 * Search namespace for each segment of the name. Loop through and 533 * verify (or add to the namespace) each name segment. 534 * 535 * The object type is significant only at the last name 536 * segment. (We don't care about the types along the path, only 537 * the type of the final target object.) 538 */ 539 this_search_type = ACPI_TYPE_ANY; 540 current_node = this_node; 541 542 while (num_segments && current_node) { 543 num_segments--; 544 if (!num_segments) { 545 546 /* This is the last segment, enable typechecking */ 547 548 this_search_type = type; 549 550 /* 551 * Only allow automatic parent search (search rules) if the caller 552 * requested it AND we have a single, non-fully-qualified name_seg 553 */ 554 if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) && 555 (flags & ACPI_NS_SEARCH_PARENT)) { 556 local_flags |= ACPI_NS_SEARCH_PARENT; 557 } 558 559 /* Set error flag according to caller */ 560 561 if (flags & ACPI_NS_ERROR_IF_FOUND) { 562 local_flags |= ACPI_NS_ERROR_IF_FOUND; 563 } 564 565 /* Set override flag according to caller */ 566 567 if (flags & ACPI_NS_OVERRIDE_IF_FOUND) { 568 local_flags |= ACPI_NS_OVERRIDE_IF_FOUND; 569 } 570 } 571 572 /* Handle opcodes that create a new name_seg via a full name_path */ 573 574 local_interpreter_mode = interpreter_mode; 575 if ((flags & ACPI_NS_PREFIX_MUST_EXIST) && (num_segments > 0)) { 576 577 /* Every element of the path must exist (except for the final name_seg) */ 578 579 local_interpreter_mode = ACPI_IMODE_EXECUTE; 580 } 581 582 /* Extract one ACPI name from the front of the pathname */ 583 584 ACPI_MOVE_32_TO_32(&simple_name, path); 585 586 /* Try to find the single (4 character) ACPI name */ 587 588 status = 589 acpi_ns_search_and_enter(simple_name, walk_state, 590 current_node, 591 local_interpreter_mode, 592 this_search_type, local_flags, 593 &this_node); 594 if (ACPI_FAILURE(status)) { 595 if (status == AE_NOT_FOUND) { 596 #if !defined ACPI_ASL_COMPILER /* Note: iASL reports this error by itself, not needed here */ 597 if (flags & ACPI_NS_PREFIX_MUST_EXIST) { 598 acpi_os_printf(ACPI_MSG_BIOS_ERROR 599 "Object does not exist: %4.4s\n", 600 (char *)&simple_name); 601 } 602 #endif 603 /* Name not found in ACPI namespace */ 604 605 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 606 "Name [%4.4s] not found in scope [%4.4s] %p\n", 607 (char *)&simple_name, 608 (char *)¤t_node->name, 609 current_node)); 610 } 611 #ifdef ACPI_EXEC_APP 612 if ((status == AE_ALREADY_EXISTS) && 613 (this_node->flags & ANOBJ_NODE_EARLY_INIT)) { 614 this_node->flags &= ~ANOBJ_NODE_EARLY_INIT; 615 status = AE_OK; 616 } 617 #endif 618 619 #ifdef ACPI_ASL_COMPILER 620 /* 621 * If this ACPI name already exists within the namespace as an 622 * external declaration, then mark the external as a conflicting 623 * declaration and proceed to process the current node as if it did 624 * not exist in the namespace. If this node is not processed as 625 * normal, then it could cause improper namespace resolution 626 * by failing to open a new scope. 627 */ 628 if (acpi_gbl_disasm_flag && 629 (status == AE_ALREADY_EXISTS) && 630 ((this_node->flags & ANOBJ_IS_EXTERNAL) || 631 (walk_state 632 && walk_state->opcode == AML_EXTERNAL_OP))) { 633 this_node->flags &= ~ANOBJ_IS_EXTERNAL; 634 this_node->type = (u8)this_search_type; 635 if (walk_state->opcode != AML_EXTERNAL_OP) { 636 acpi_dm_mark_external_conflict 637 (this_node); 638 } 639 break; 640 } 641 #endif 642 643 *return_node = this_node; 644 return_ACPI_STATUS(status); 645 } 646 647 /* More segments to follow? */ 648 649 if (num_segments > 0) { 650 /* 651 * If we have an alias to an object that opens a scope (such as a 652 * device or processor), we need to dereference the alias here so 653 * that we can access any children of the original node (via the 654 * remaining segments). 655 */ 656 if (this_node->type == ACPI_TYPE_LOCAL_ALIAS) { 657 if (!this_node->object) { 658 return_ACPI_STATUS(AE_NOT_EXIST); 659 } 660 661 if (acpi_ns_opens_scope 662 (((struct acpi_namespace_node *) 663 this_node->object)->type)) { 664 this_node = 665 (struct acpi_namespace_node *) 666 this_node->object; 667 } 668 } 669 } 670 671 /* Special handling for the last segment (num_segments == 0) */ 672 673 else { 674 /* 675 * Sanity typecheck of the target object: 676 * 677 * If 1) This is the last segment (num_segments == 0) 678 * 2) And we are looking for a specific type 679 * (Not checking for TYPE_ANY) 680 * 3) Which is not an alias 681 * 4) Which is not a local type (TYPE_SCOPE) 682 * 5) And the type of target object is known (not TYPE_ANY) 683 * 6) And target object does not match what we are looking for 684 * 685 * Then we have a type mismatch. Just warn and ignore it. 686 */ 687 if ((type_to_check_for != ACPI_TYPE_ANY) && 688 (type_to_check_for != ACPI_TYPE_LOCAL_ALIAS) && 689 (type_to_check_for != ACPI_TYPE_LOCAL_METHOD_ALIAS) 690 && (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) 691 && (this_node->type != ACPI_TYPE_ANY) 692 && (this_node->type != type_to_check_for)) { 693 694 /* Complain about a type mismatch */ 695 696 ACPI_WARNING((AE_INFO, 697 "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)", 698 ACPI_CAST_PTR(char, &simple_name), 699 acpi_ut_get_type_name(this_node-> 700 type), 701 acpi_ut_get_type_name 702 (type_to_check_for))); 703 } 704 705 /* 706 * If this is the last name segment and we are not looking for a 707 * specific type, but the type of found object is known, use that 708 * type to (later) see if it opens a scope. 709 */ 710 if (type == ACPI_TYPE_ANY) { 711 type = this_node->type; 712 } 713 } 714 715 /* Point to next name segment and make this node current */ 716 717 path += ACPI_NAMESEG_SIZE; 718 current_node = this_node; 719 } 720 721 /* Always check if we need to open a new scope */ 722 723 if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) { 724 /* 725 * If entry is a type which opens a scope, push the new scope on the 726 * scope stack. 727 */ 728 if (acpi_ns_opens_scope(type)) { 729 status = 730 acpi_ds_scope_stack_push(this_node, type, 731 walk_state); 732 if (ACPI_FAILURE(status)) { 733 return_ACPI_STATUS(status); 734 } 735 } 736 } 737 #ifdef ACPI_EXEC_APP 738 if (flags & ACPI_NS_EARLY_INIT) { 739 this_node->flags |= ANOBJ_NODE_EARLY_INIT; 740 } 741 #endif 742 743 *return_node = this_node; 744 return_ACPI_STATUS(AE_OK); 745 } 746