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On Tue, Nov 06, 2007 at 02:33:53AM -0800, akpm@linux-foundation.org wrote:
[mmotm.git] / drivers / acpi / acpica / exstore.c
blob6efd07a4f779c5975b864eb81989f60a9f84019f
1
2 /******************************************************************************
3 *
4 * Module Name: exstore - AML Interpreter object store support
5 *
6 *****************************************************************************/
7
8 /*
9 * Copyright (C) 2000 - 2008, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions, and the following disclaimer,
17 * without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 * substantially similar to the "NO WARRANTY" disclaimer below
20 * ("Disclaimer") and any redistribution must be conditioned upon
21 * including a substantially similar Disclaimer requirement for further
22 * binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 * of any contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45 #include <acpi/acpi.h>
46 #include "accommon.h"
47 #include "acdispat.h"
48 #include "acinterp.h"
49 #include "amlcode.h"
50 #include "acnamesp.h"
51
52 #define _COMPONENT ACPI_EXECUTER
53 ACPI_MODULE_NAME("exstore")
54
55 /* Local prototypes */
56 static void
57 acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
58 u32 level, u32 index);
59
60 static acpi_status
61 acpi_ex_store_object_to_index(union acpi_operand_object *val_desc,
62 union acpi_operand_object *dest_desc,
63 struct acpi_walk_state *walk_state);
64
65 /*******************************************************************************
66 *
67 * FUNCTION: acpi_ex_do_debug_object
68 *
69 * PARAMETERS: source_desc - Value to be stored
70 * Level - Indentation level (used for packages)
71 * Index - Current package element, zero if not pkg
72 *
73 * RETURN: None
74 *
75 * DESCRIPTION: Handles stores to the Debug Object.
76 *
77 ******************************************************************************/
78
79 static void
80 acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
81 u32 level, u32 index)
82 {
83 u32 i;
84
85 ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
86
87 /* Print line header as long as we are not in the middle of an object display */
88
89 if (!((level > 0) && index == 0)) {
90 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s",
91 level, " "));
92 }
93
94 /* Display index for package output only */
95
96 if (index > 0) {
97 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
98 "(%.2u) ", index - 1));
99 }
100
101 if (!source_desc) {
102 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[Null Object]\n"));
103 return_VOID;
104 }
105
106 if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) == ACPI_DESC_TYPE_OPERAND) {
107 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s ",
108 acpi_ut_get_object_type_name
109 (source_desc)));
110
111 if (!acpi_ut_valid_internal_object(source_desc)) {
112 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
113 "%p, Invalid Internal Object!\n",
114 source_desc));
115 return_VOID;
116 }
117 } else if (ACPI_GET_DESCRIPTOR_TYPE(source_desc) ==
118 ACPI_DESC_TYPE_NAMED) {
119 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%s: %p\n",
120 acpi_ut_get_type_name(((struct
121 acpi_namespace_node
122 *)source_desc)->
123 type),
124 source_desc));
125 return_VOID;
126 } else {
127 return_VOID;
128 }
129
130 /* source_desc is of type ACPI_DESC_TYPE_OPERAND */
131
132 switch (source_desc->common.type) {
133 case ACPI_TYPE_INTEGER:
134
135 /* Output correct integer width */
136
137 if (acpi_gbl_integer_byte_width == 4) {
138 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%8.8X\n",
139 (u32) source_desc->integer.
140 value));
141 } else {
142 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
143 "0x%8.8X%8.8X\n",
144 ACPI_FORMAT_UINT64(source_desc->
145 integer.
146 value)));
147 }
148 break;
149
150 case ACPI_TYPE_BUFFER:
151
152 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X]\n",
153 (u32) source_desc->buffer.length));
154 ACPI_DUMP_BUFFER(source_desc->buffer.pointer,
155 (source_desc->buffer.length <
156 256) ? source_desc->buffer.length : 256);
157 break;
158
159 case ACPI_TYPE_STRING:
160
161 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[0x%.2X] \"%s\"\n",
162 source_desc->string.length,
163 source_desc->string.pointer));
164 break;
165
166 case ACPI_TYPE_PACKAGE:
167
168 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
169 "[Contains 0x%.2X Elements]\n",
170 source_desc->package.count));
171
172 /* Output the entire contents of the package */
173
174 for (i = 0; i < source_desc->package.count; i++) {
175 acpi_ex_do_debug_object(source_desc->package.
176 elements[i], level + 4, i + 1);
177 }
178 break;
179
180 case ACPI_TYPE_LOCAL_REFERENCE:
181
182 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[%s] ",
183 acpi_ut_get_reference_name(source_desc)));
184
185 /* Decode the reference */
186
187 switch (source_desc->reference.class) {
188 case ACPI_REFCLASS_INDEX:
189
190 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "0x%X\n",
191 source_desc->reference.value));
192 break;
193
194 case ACPI_REFCLASS_TABLE:
195
196 /* Case for ddb_handle */
197
198 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
199 "Table Index 0x%X\n",
200 source_desc->reference.value));
201 return;
202
203 default:
204 break;
205 }
206
207 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, " "));
208
209 /* Check for valid node first, then valid object */
210
211 if (source_desc->reference.node) {
212 if (ACPI_GET_DESCRIPTOR_TYPE
213 (source_desc->reference.node) !=
214 ACPI_DESC_TYPE_NAMED) {
215 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
216 " %p - Not a valid namespace node\n",
217 source_desc->reference.
218 node));
219 } else {
220 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT,
221 "Node %p [%4.4s] ",
222 source_desc->reference.
223 node,
224 (source_desc->reference.
225 node)->name.ascii));
226
227 switch ((source_desc->reference.node)->type) {
228
229 /* These types have no attached object */
230
231 case ACPI_TYPE_DEVICE:
232 acpi_os_printf("Device\n");
233 break;
234
235 case ACPI_TYPE_THERMAL:
236 acpi_os_printf("Thermal Zone\n");
237 break;
238
239 default:
240 acpi_ex_do_debug_object((source_desc->
241 reference.
242 node)->object,
243 level + 4, 0);
244 break;
245 }
246 }
247 } else if (source_desc->reference.object) {
248 if (ACPI_GET_DESCRIPTOR_TYPE
249 (source_desc->reference.object) ==
250 ACPI_DESC_TYPE_NAMED) {
251 acpi_ex_do_debug_object(((struct
252 acpi_namespace_node *)
253 source_desc->reference.
254 object)->object,
255 level + 4, 0);
256 } else {
257 acpi_ex_do_debug_object(source_desc->reference.
258 object, level + 4, 0);
259 }
260 }
261 break;
262
263 default:
264
265 ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "%p\n",
266 source_desc));
267 break;
268 }
269
270 ACPI_DEBUG_PRINT_RAW((ACPI_DB_EXEC, "\n"));
271 return_VOID;
272 }
273
274 /*******************************************************************************
275 *
276 * FUNCTION: acpi_ex_store
277 *
278 * PARAMETERS: *source_desc - Value to be stored
279 * *dest_desc - Where to store it. Must be an NS node
280 * or a union acpi_operand_object of type
281 * Reference;
282 * walk_state - Current walk state
283 *
284 * RETURN: Status
285 *
286 * DESCRIPTION: Store the value described by source_desc into the location
287 * described by dest_desc. Called by various interpreter
288 * functions to store the result of an operation into
289 * the destination operand -- not just simply the actual "Store"
290 * ASL operator.
291 *
292 ******************************************************************************/
293
294 acpi_status
295 acpi_ex_store(union acpi_operand_object *source_desc,
296 union acpi_operand_object *dest_desc,
297 struct acpi_walk_state *walk_state)
298 {
299 acpi_status status = AE_OK;
300 union acpi_operand_object *ref_desc = dest_desc;
301
302 ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc);
303
304 /* Validate parameters */
305
306 if (!source_desc || !dest_desc) {
307 ACPI_ERROR((AE_INFO, "Null parameter"));
308 return_ACPI_STATUS(AE_AML_NO_OPERAND);
309 }
310
311 /* dest_desc can be either a namespace node or an ACPI object */
312
313 if (ACPI_GET_DESCRIPTOR_TYPE(dest_desc) == ACPI_DESC_TYPE_NAMED) {
314 /*
315 * Dest is a namespace node,
316 * Storing an object into a Named node.
317 */
318 status = acpi_ex_store_object_to_node(source_desc,
319 (struct
320 acpi_namespace_node *)
321 dest_desc, walk_state,
322 ACPI_IMPLICIT_CONVERSION);
323
324 return_ACPI_STATUS(status);
325 }
326
327 /* Destination object must be a Reference or a Constant object */
328
329 switch (dest_desc->common.type) {
330 case ACPI_TYPE_LOCAL_REFERENCE:
331 break;
332
333 case ACPI_TYPE_INTEGER:
334
335 /* Allow stores to Constants -- a Noop as per ACPI spec */
336
337 if (dest_desc->common.flags & AOPOBJ_AML_CONSTANT) {
338 return_ACPI_STATUS(AE_OK);
339 }
340
341 /*lint -fallthrough */
342
343 default:
344
345 /* Destination is not a Reference object */
346
347 ACPI_ERROR((AE_INFO,
348 "Target is not a Reference or Constant object - %s [%p]",
349 acpi_ut_get_object_type_name(dest_desc),
350 dest_desc));
351
352 return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
353 }
354
355 /*
356 * Examine the Reference class. These cases are handled:
357 *
358 * 1) Store to Name (Change the object associated with a name)
359 * 2) Store to an indexed area of a Buffer or Package
360 * 3) Store to a Method Local or Arg
361 * 4) Store to the debug object
362 */
363 switch (ref_desc->reference.class) {
364 case ACPI_REFCLASS_REFOF:
365
366 /* Storing an object into a Name "container" */
367
368 status = acpi_ex_store_object_to_node(source_desc,
369 ref_desc->reference.
370 object, walk_state,
371 ACPI_IMPLICIT_CONVERSION);
372 break;
373
374 case ACPI_REFCLASS_INDEX:
375
376 /* Storing to an Index (pointer into a packager or buffer) */
377
378 status =
379 acpi_ex_store_object_to_index(source_desc, ref_desc,
380 walk_state);
381 break;
382
383 case ACPI_REFCLASS_LOCAL:
384 case ACPI_REFCLASS_ARG:
385
386 /* Store to a method local/arg */
387
388 status =
389 acpi_ds_store_object_to_local(ref_desc->reference.class,
390 ref_desc->reference.value,
391 source_desc, walk_state);
392 break;
393
394 case ACPI_REFCLASS_DEBUG:
395
396 /*
397 * Storing to the Debug object causes the value stored to be
398 * displayed and otherwise has no effect -- see ACPI Specification
399 */
400 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
401 "**** Write to Debug Object: Object %p %s ****:\n\n",
402 source_desc,
403 acpi_ut_get_object_type_name(source_desc)));
404
405 acpi_ex_do_debug_object(source_desc, 0, 0);
406 break;
407
408 default:
409
410 ACPI_ERROR((AE_INFO, "Unknown Reference Class %2.2X",
411 ref_desc->reference.class));
412 ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO);
413
414 status = AE_AML_INTERNAL;
415 break;
416 }
417
418 return_ACPI_STATUS(status);
419 }
420
421 /*******************************************************************************
422 *
423 * FUNCTION: acpi_ex_store_object_to_index
424 *
425 * PARAMETERS: *source_desc - Value to be stored
426 * *dest_desc - Named object to receive the value
427 * walk_state - Current walk state
428 *
429 * RETURN: Status
430 *
431 * DESCRIPTION: Store the object to indexed Buffer or Package element
432 *
433 ******************************************************************************/
434
435 static acpi_status
436 acpi_ex_store_object_to_index(union acpi_operand_object *source_desc,
437 union acpi_operand_object *index_desc,
438 struct acpi_walk_state *walk_state)
439 {
440 acpi_status status = AE_OK;
441 union acpi_operand_object *obj_desc;
442 union acpi_operand_object *new_desc;
443 u8 value = 0;
444 u32 i;
445
446 ACPI_FUNCTION_TRACE(ex_store_object_to_index);
447
448 /*
449 * Destination must be a reference pointer, and
450 * must point to either a buffer or a package
451 */
452 switch (index_desc->reference.target_type) {
453 case ACPI_TYPE_PACKAGE:
454 /*
455 * Storing to a package element. Copy the object and replace
456 * any existing object with the new object. No implicit
457 * conversion is performed.
458 *
459 * The object at *(index_desc->Reference.Where) is the
460 * element within the package that is to be modified.
461 * The parent package object is at index_desc->Reference.Object
462 */
463 obj_desc = *(index_desc->reference.where);
464
465 if (source_desc->common.type == ACPI_TYPE_LOCAL_REFERENCE &&
466 source_desc->reference.class == ACPI_REFCLASS_TABLE) {
467
468 /* This is a DDBHandle, just add a reference to it */
469
470 acpi_ut_add_reference(source_desc);
471 new_desc = source_desc;
472 } else {
473 /* Normal object, copy it */
474
475 status =
476 acpi_ut_copy_iobject_to_iobject(source_desc,
477 &new_desc,
478 walk_state);
479 if (ACPI_FAILURE(status)) {
480 return_ACPI_STATUS(status);
481 }
482 }
483
484 if (obj_desc) {
485
486 /* Decrement reference count by the ref count of the parent package */
487
488 for (i = 0; i < ((union acpi_operand_object *)
489 index_desc->reference.object)->common.
490 reference_count; i++) {
491 acpi_ut_remove_reference(obj_desc);
492 }
493 }
494
495 *(index_desc->reference.where) = new_desc;
496
497 /* Increment ref count by the ref count of the parent package-1 */
498
499 for (i = 1; i < ((union acpi_operand_object *)
500 index_desc->reference.object)->common.
501 reference_count; i++) {
502 acpi_ut_add_reference(new_desc);
503 }
504
505 break;
506
507 case ACPI_TYPE_BUFFER_FIELD:
508
509 /*
510 * Store into a Buffer or String (not actually a real buffer_field)
511 * at a location defined by an Index.
512 *
513 * The first 8-bit element of the source object is written to the
514 * 8-bit Buffer location defined by the Index destination object,
515 * according to the ACPI 2.0 specification.
516 */
517
518 /*
519 * Make sure the target is a Buffer or String. An error should
520 * not happen here, since the reference_object was constructed
521 * by the INDEX_OP code.
522 */
523 obj_desc = index_desc->reference.object;
524 if ((obj_desc->common.type != ACPI_TYPE_BUFFER) &&
525 (obj_desc->common.type != ACPI_TYPE_STRING)) {
526 return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
527 }
528
529 /*
530 * The assignment of the individual elements will be slightly
531 * different for each source type.
532 */
533 switch (source_desc->common.type) {
534 case ACPI_TYPE_INTEGER:
535
536 /* Use the least-significant byte of the integer */
537
538 value = (u8) (source_desc->integer.value);
539 break;
540
541 case ACPI_TYPE_BUFFER:
542 case ACPI_TYPE_STRING:
543
544 /* Note: Takes advantage of common string/buffer fields */
545
546 value = source_desc->buffer.pointer[0];
547 break;
548
549 default:
550
551 /* All other types are invalid */
552
553 ACPI_ERROR((AE_INFO,
554 "Source must be Integer/Buffer/String type, not %s",
555 acpi_ut_get_object_type_name(source_desc)));
556 return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
557 }
558
559 /* Store the source value into the target buffer byte */
560
561 obj_desc->buffer.pointer[index_desc->reference.value] = value;
562 break;
563
564 default:
565 ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField"));
566 status = AE_AML_OPERAND_TYPE;
567 break;
568 }
569
570 return_ACPI_STATUS(status);
571 }
572
573 /*******************************************************************************
574 *
575 * FUNCTION: acpi_ex_store_object_to_node
576 *
577 * PARAMETERS: source_desc - Value to be stored
578 * Node - Named object to receive the value
579 * walk_state - Current walk state
580 * implicit_conversion - Perform implicit conversion (yes/no)
581 *
582 * RETURN: Status
583 *
584 * DESCRIPTION: Store the object to the named object.
585 *
586 * The Assignment of an object to a named object is handled here
587 * The value passed in will replace the current value (if any)
588 * with the input value.
589 *
590 * When storing into an object the data is converted to the
591 * target object type then stored in the object. This means
592 * that the target object type (for an initialized target) will
593 * not be changed by a store operation.
594 *
595 * Assumes parameters are already validated.
596 *
597 ******************************************************************************/
598
599 acpi_status
600 acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
601 struct acpi_namespace_node *node,
602 struct acpi_walk_state *walk_state,
603 u8 implicit_conversion)
604 {
605 acpi_status status = AE_OK;
606 union acpi_operand_object *target_desc;
607 union acpi_operand_object *new_desc;
608 acpi_object_type target_type;
609
610 ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc);
611
612 /* Get current type of the node, and object attached to Node */
613
614 target_type = acpi_ns_get_type(node);
615 target_desc = acpi_ns_get_attached_object(node);
616
617 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p(%s) into node %p(%s)\n",
618 source_desc,
619 acpi_ut_get_object_type_name(source_desc), node,
620 acpi_ut_get_type_name(target_type)));
621
622 /*
623 * Resolve the source object to an actual value
624 * (If it is a reference object)
625 */
626 status = acpi_ex_resolve_object(&source_desc, target_type, walk_state);
627 if (ACPI_FAILURE(status)) {
628 return_ACPI_STATUS(status);
629 }
630
631 /* If no implicit conversion, drop into the default case below */
632
633 if ((!implicit_conversion) ||
634 ((walk_state->opcode == AML_COPY_OP) &&
635 (target_type != ACPI_TYPE_LOCAL_REGION_FIELD) &&
636 (target_type != ACPI_TYPE_LOCAL_BANK_FIELD) &&
637 (target_type != ACPI_TYPE_LOCAL_INDEX_FIELD))) {
638 /*
639 * Force execution of default (no implicit conversion). Note:
640 * copy_object does not perform an implicit conversion, as per the ACPI
641 * spec -- except in case of region/bank/index fields -- because these
642 * objects must retain their original type permanently.
643 */
644 target_type = ACPI_TYPE_ANY;
645 }
646
647 /* Do the actual store operation */
648
649 switch (target_type) {
650 case ACPI_TYPE_BUFFER_FIELD:
651 case ACPI_TYPE_LOCAL_REGION_FIELD:
652 case ACPI_TYPE_LOCAL_BANK_FIELD:
653 case ACPI_TYPE_LOCAL_INDEX_FIELD:
654
655 /* For fields, copy the source data to the target field. */
656
657 status = acpi_ex_write_data_to_field(source_desc, target_desc,
658 &walk_state->result_obj);
659 break;
660
661 case ACPI_TYPE_INTEGER:
662 case ACPI_TYPE_STRING:
663 case ACPI_TYPE_BUFFER:
664
665 /*
666 * These target types are all of type Integer/String/Buffer, and
667 * therefore support implicit conversion before the store.
668 *
669 * Copy and/or convert the source object to a new target object
670 */
671 status =
672 acpi_ex_store_object_to_object(source_desc, target_desc,
673 &new_desc, walk_state);
674 if (ACPI_FAILURE(status)) {
675 return_ACPI_STATUS(status);
676 }
677
678 if (new_desc != target_desc) {
679 /*
680 * Store the new new_desc as the new value of the Name, and set
681 * the Name's type to that of the value being stored in it.
682 * source_desc reference count is incremented by attach_object.
683 *
684 * Note: This may change the type of the node if an explicit store
685 * has been performed such that the node/object type has been
686 * changed.
687 */
688 status =
689 acpi_ns_attach_object(node, new_desc,
690 new_desc->common.type);
691
692 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
693 "Store %s into %s via Convert/Attach\n",
694 acpi_ut_get_object_type_name
695 (source_desc),
696 acpi_ut_get_object_type_name
697 (new_desc)));
698 }
699 break;
700
701 default:
702
703 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
704 "Storing %s (%p) directly into node (%p) with no implicit conversion\n",
705 acpi_ut_get_object_type_name(source_desc),
706 source_desc, node));
707
708 /* No conversions for all other types. Just attach the source object */
709
710 status = acpi_ns_attach_object(node, source_desc,
711 source_desc->common.type);
712 break;
713 }
714
715 return_ACPI_STATUS(status);
716 }
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