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[deliverable/linux.git] / drivers / acpi / dispatcher / dsmthdat.c
1 /*******************************************************************************
2 *
3 * Module Name: dsmthdat - control method arguments and local variables
4 *
5 ******************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2008, 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 <acpi/acdispat.h>
46 #include <acpi/acnamesp.h>
47 #include <acpi/acinterp.h>
48
49 #define _COMPONENT ACPI_DISPATCHER
50 ACPI_MODULE_NAME("dsmthdat")
51
52 /* Local prototypes */
53 static void
54 acpi_ds_method_data_delete_value(u8 type,
55 u32 index, struct acpi_walk_state *walk_state);
56
57 static acpi_status
58 acpi_ds_method_data_set_value(u8 type,
59 u32 index,
60 union acpi_operand_object *object,
61 struct acpi_walk_state *walk_state);
62
63 #ifdef ACPI_OBSOLETE_FUNCTIONS
64 acpi_object_type
65 acpi_ds_method_data_get_type(u16 opcode,
66 u32 index, struct acpi_walk_state *walk_state);
67 #endif
68
69 /*******************************************************************************
70 *
71 * FUNCTION: acpi_ds_method_data_init
72 *
73 * PARAMETERS: walk_state - Current walk state object
74 *
75 * RETURN: Status
76 *
77 * DESCRIPTION: Initialize the data structures that hold the method's arguments
78 * and locals. The data struct is an array of namespace nodes for
79 * each - this allows ref_of and de_ref_of to work properly for these
80 * special data types.
81 *
82 * NOTES: walk_state fields are initialized to zero by the
83 * ACPI_ALLOCATE_ZEROED().
84 *
85 * A pseudo-Namespace Node is assigned to each argument and local
86 * so that ref_of() can return a pointer to the Node.
87 *
88 ******************************************************************************/
89
90 void acpi_ds_method_data_init(struct acpi_walk_state *walk_state)
91 {
92 u32 i;
93
94 ACPI_FUNCTION_TRACE(ds_method_data_init);
95
96 /* Init the method arguments */
97
98 for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
99 ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name,
100 NAMEOF_ARG_NTE);
101 walk_state->arguments[i].name.integer |= (i << 24);
102 walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED;
103 walk_state->arguments[i].type = ACPI_TYPE_ANY;
104 walk_state->arguments[i].flags =
105 ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG;
106 }
107
108 /* Init the method locals */
109
110 for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
111 ACPI_MOVE_32_TO_32(&walk_state->local_variables[i].name,
112 NAMEOF_LOCAL_NTE);
113
114 walk_state->local_variables[i].name.integer |= (i << 24);
115 walk_state->local_variables[i].descriptor_type =
116 ACPI_DESC_TYPE_NAMED;
117 walk_state->local_variables[i].type = ACPI_TYPE_ANY;
118 walk_state->local_variables[i].flags =
119 ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL;
120 }
121
122 return_VOID;
123 }
124
125 /*******************************************************************************
126 *
127 * FUNCTION: acpi_ds_method_data_delete_all
128 *
129 * PARAMETERS: walk_state - Current walk state object
130 *
131 * RETURN: None
132 *
133 * DESCRIPTION: Delete method locals and arguments. Arguments are only
134 * deleted if this method was called from another method.
135 *
136 ******************************************************************************/
137
138 void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state)
139 {
140 u32 index;
141
142 ACPI_FUNCTION_TRACE(ds_method_data_delete_all);
143
144 /* Detach the locals */
145
146 for (index = 0; index < ACPI_METHOD_NUM_LOCALS; index++) {
147 if (walk_state->local_variables[index].object) {
148 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Local%d=%p\n",
149 index,
150 walk_state->local_variables[index].
151 object));
152
153 /* Detach object (if present) and remove a reference */
154
155 acpi_ns_detach_object(&walk_state->
156 local_variables[index]);
157 }
158 }
159
160 /* Detach the arguments */
161
162 for (index = 0; index < ACPI_METHOD_NUM_ARGS; index++) {
163 if (walk_state->arguments[index].object) {
164 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Deleting Arg%d=%p\n",
165 index,
166 walk_state->arguments[index].object));
167
168 /* Detach object (if present) and remove a reference */
169
170 acpi_ns_detach_object(&walk_state->arguments[index]);
171 }
172 }
173
174 return_VOID;
175 }
176
177 /*******************************************************************************
178 *
179 * FUNCTION: acpi_ds_method_data_init_args
180 *
181 * PARAMETERS: *Params - Pointer to a parameter list for the method
182 * max_param_count - The arg count for this method
183 * walk_state - Current walk state object
184 *
185 * RETURN: Status
186 *
187 * DESCRIPTION: Initialize arguments for a method. The parameter list is a list
188 * of ACPI operand objects, either null terminated or whose length
189 * is defined by max_param_count.
190 *
191 ******************************************************************************/
192
193 acpi_status
194 acpi_ds_method_data_init_args(union acpi_operand_object **params,
195 u32 max_param_count,
196 struct acpi_walk_state *walk_state)
197 {
198 acpi_status status;
199 u32 index = 0;
200
201 ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params);
202
203 if (!params) {
204 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
205 "No param list passed to method\n"));
206 return_ACPI_STATUS(AE_OK);
207 }
208
209 /* Copy passed parameters into the new method stack frame */
210
211 while ((index < ACPI_METHOD_NUM_ARGS) &&
212 (index < max_param_count) && params[index]) {
213 /*
214 * A valid parameter.
215 * Store the argument in the method/walk descriptor.
216 * Do not copy the arg in order to implement call by reference
217 */
218 status = acpi_ds_method_data_set_value(ACPI_REFCLASS_ARG, index,
219 params[index],
220 walk_state);
221 if (ACPI_FAILURE(status)) {
222 return_ACPI_STATUS(status);
223 }
224
225 index++;
226 }
227
228 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%d args passed to method\n", index));
229 return_ACPI_STATUS(AE_OK);
230 }
231
232 /*******************************************************************************
233 *
234 * FUNCTION: acpi_ds_method_data_get_node
235 *
236 * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
237 * ACPI_REFCLASS_ARG
238 * Index - Which Local or Arg whose type to get
239 * walk_state - Current walk state object
240 * Node - Where the node is returned.
241 *
242 * RETURN: Status and node
243 *
244 * DESCRIPTION: Get the Node associated with a local or arg.
245 *
246 ******************************************************************************/
247
248 acpi_status
249 acpi_ds_method_data_get_node(u8 type,
250 u32 index,
251 struct acpi_walk_state *walk_state,
252 struct acpi_namespace_node **node)
253 {
254 ACPI_FUNCTION_TRACE(ds_method_data_get_node);
255
256 /*
257 * Method Locals and Arguments are supported
258 */
259 switch (type) {
260 case ACPI_REFCLASS_LOCAL:
261
262 if (index > ACPI_METHOD_MAX_LOCAL) {
263 ACPI_ERROR((AE_INFO,
264 "Local index %d is invalid (max %d)",
265 index, ACPI_METHOD_MAX_LOCAL));
266 return_ACPI_STATUS(AE_AML_INVALID_INDEX);
267 }
268
269 /* Return a pointer to the pseudo-node */
270
271 *node = &walk_state->local_variables[index];
272 break;
273
274 case ACPI_REFCLASS_ARG:
275
276 if (index > ACPI_METHOD_MAX_ARG) {
277 ACPI_ERROR((AE_INFO,
278 "Arg index %d is invalid (max %d)",
279 index, ACPI_METHOD_MAX_ARG));
280 return_ACPI_STATUS(AE_AML_INVALID_INDEX);
281 }
282
283 /* Return a pointer to the pseudo-node */
284
285 *node = &walk_state->arguments[index];
286 break;
287
288 default:
289 ACPI_ERROR((AE_INFO, "Type %d is invalid", type));
290 return_ACPI_STATUS(AE_TYPE);
291 }
292
293 return_ACPI_STATUS(AE_OK);
294 }
295
296 /*******************************************************************************
297 *
298 * FUNCTION: acpi_ds_method_data_set_value
299 *
300 * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
301 * ACPI_REFCLASS_ARG
302 * Index - Which Local or Arg to get
303 * Object - Object to be inserted into the stack entry
304 * walk_state - Current walk state object
305 *
306 * RETURN: Status
307 *
308 * DESCRIPTION: Insert an object onto the method stack at entry Opcode:Index.
309 * Note: There is no "implicit conversion" for locals.
310 *
311 ******************************************************************************/
312
313 static acpi_status
314 acpi_ds_method_data_set_value(u8 type,
315 u32 index,
316 union acpi_operand_object *object,
317 struct acpi_walk_state *walk_state)
318 {
319 acpi_status status;
320 struct acpi_namespace_node *node;
321
322 ACPI_FUNCTION_TRACE(ds_method_data_set_value);
323
324 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
325 "NewObj %p Type %2.2X, Refs=%d [%s]\n", object,
326 type, object->common.reference_count,
327 acpi_ut_get_type_name(object->common.type)));
328
329 /* Get the namespace node for the arg/local */
330
331 status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
332 if (ACPI_FAILURE(status)) {
333 return_ACPI_STATUS(status);
334 }
335
336 /*
337 * Increment ref count so object can't be deleted while installed.
338 * NOTE: We do not copy the object in order to preserve the call by
339 * reference semantics of ACPI Control Method invocation.
340 * (See ACPI Specification 2.0_c)
341 */
342 acpi_ut_add_reference(object);
343
344 /* Install the object */
345
346 node->object = object;
347 return_ACPI_STATUS(status);
348 }
349
350 /*******************************************************************************
351 *
352 * FUNCTION: acpi_ds_method_data_get_value
353 *
354 * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
355 * ACPI_REFCLASS_ARG
356 * Index - Which local_var or argument to get
357 * walk_state - Current walk state object
358 * dest_desc - Where Arg or Local value is returned
359 *
360 * RETURN: Status
361 *
362 * DESCRIPTION: Retrieve value of selected Arg or Local for this method
363 * Used only in acpi_ex_resolve_to_value().
364 *
365 ******************************************************************************/
366
367 acpi_status
368 acpi_ds_method_data_get_value(u8 type,
369 u32 index,
370 struct acpi_walk_state *walk_state,
371 union acpi_operand_object **dest_desc)
372 {
373 acpi_status status;
374 struct acpi_namespace_node *node;
375 union acpi_operand_object *object;
376
377 ACPI_FUNCTION_TRACE(ds_method_data_get_value);
378
379 /* Validate the object descriptor */
380
381 if (!dest_desc) {
382 ACPI_ERROR((AE_INFO, "Null object descriptor pointer"));
383 return_ACPI_STATUS(AE_BAD_PARAMETER);
384 }
385
386 /* Get the namespace node for the arg/local */
387
388 status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
389 if (ACPI_FAILURE(status)) {
390 return_ACPI_STATUS(status);
391 }
392
393 /* Get the object from the node */
394
395 object = node->object;
396
397 /* Examine the returned object, it must be valid. */
398
399 if (!object) {
400 /*
401 * Index points to uninitialized object.
402 * This means that either 1) The expected argument was
403 * not passed to the method, or 2) A local variable
404 * was referenced by the method (via the ASL)
405 * before it was initialized. Either case is an error.
406 */
407
408 /* If slack enabled, init the local_x/arg_x to an Integer of value zero */
409
410 if (acpi_gbl_enable_interpreter_slack) {
411 object =
412 acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
413 if (!object) {
414 return_ACPI_STATUS(AE_NO_MEMORY);
415 }
416
417 object->integer.value = 0;
418 node->object = object;
419 }
420
421 /* Otherwise, return the error */
422
423 else
424 switch (type) {
425 case ACPI_REFCLASS_ARG:
426
427 ACPI_ERROR((AE_INFO,
428 "Uninitialized Arg[%d] at node %p",
429 index, node));
430
431 return_ACPI_STATUS(AE_AML_UNINITIALIZED_ARG);
432
433 case ACPI_REFCLASS_LOCAL:
434
435 ACPI_ERROR((AE_INFO,
436 "Uninitialized Local[%d] at node %p",
437 index, node));
438
439 return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL);
440
441 default:
442
443 ACPI_ERROR((AE_INFO,
444 "Not a Arg/Local opcode: %X",
445 type));
446 return_ACPI_STATUS(AE_AML_INTERNAL);
447 }
448 }
449
450 /*
451 * The Index points to an initialized and valid object.
452 * Return an additional reference to the object
453 */
454 *dest_desc = object;
455 acpi_ut_add_reference(object);
456
457 return_ACPI_STATUS(AE_OK);
458 }
459
460 /*******************************************************************************
461 *
462 * FUNCTION: acpi_ds_method_data_delete_value
463 *
464 * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
465 * ACPI_REFCLASS_ARG
466 * Index - Which local_var or argument to delete
467 * walk_state - Current walk state object
468 *
469 * RETURN: None
470 *
471 * DESCRIPTION: Delete the entry at Opcode:Index. Inserts
472 * a null into the stack slot after the object is deleted.
473 *
474 ******************************************************************************/
475
476 static void
477 acpi_ds_method_data_delete_value(u8 type,
478 u32 index, struct acpi_walk_state *walk_state)
479 {
480 acpi_status status;
481 struct acpi_namespace_node *node;
482 union acpi_operand_object *object;
483
484 ACPI_FUNCTION_TRACE(ds_method_data_delete_value);
485
486 /* Get the namespace node for the arg/local */
487
488 status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
489 if (ACPI_FAILURE(status)) {
490 return_VOID;
491 }
492
493 /* Get the associated object */
494
495 object = acpi_ns_get_attached_object(node);
496
497 /*
498 * Undefine the Arg or Local by setting its descriptor
499 * pointer to NULL. Locals/Args can contain both
500 * ACPI_OPERAND_OBJECTS and ACPI_NAMESPACE_NODEs
501 */
502 node->object = NULL;
503
504 if ((object) &&
505 (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_OPERAND)) {
506 /*
507 * There is a valid object.
508 * Decrement the reference count by one to balance the
509 * increment when the object was stored.
510 */
511 acpi_ut_remove_reference(object);
512 }
513
514 return_VOID;
515 }
516
517 /*******************************************************************************
518 *
519 * FUNCTION: acpi_ds_store_object_to_local
520 *
521 * PARAMETERS: Type - Either ACPI_REFCLASS_LOCAL or
522 * ACPI_REFCLASS_ARG
523 * Index - Which Local or Arg to set
524 * obj_desc - Value to be stored
525 * walk_state - Current walk state
526 *
527 * RETURN: Status
528 *
529 * DESCRIPTION: Store a value in an Arg or Local. The obj_desc is installed
530 * as the new value for the Arg or Local and the reference count
531 * for obj_desc is incremented.
532 *
533 ******************************************************************************/
534
535 acpi_status
536 acpi_ds_store_object_to_local(u8 type,
537 u32 index,
538 union acpi_operand_object *obj_desc,
539 struct acpi_walk_state *walk_state)
540 {
541 acpi_status status;
542 struct acpi_namespace_node *node;
543 union acpi_operand_object *current_obj_desc;
544 union acpi_operand_object *new_obj_desc;
545
546 ACPI_FUNCTION_TRACE(ds_store_object_to_local);
547 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Type=%2.2X Index=%d Obj=%p\n",
548 type, index, obj_desc));
549
550 /* Parameter validation */
551
552 if (!obj_desc) {
553 return_ACPI_STATUS(AE_BAD_PARAMETER);
554 }
555
556 /* Get the namespace node for the arg/local */
557
558 status = acpi_ds_method_data_get_node(type, index, walk_state, &node);
559 if (ACPI_FAILURE(status)) {
560 return_ACPI_STATUS(status);
561 }
562
563 current_obj_desc = acpi_ns_get_attached_object(node);
564 if (current_obj_desc == obj_desc) {
565 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Obj=%p already installed!\n",
566 obj_desc));
567 return_ACPI_STATUS(status);
568 }
569
570 /*
571 * If the reference count on the object is more than one, we must
572 * take a copy of the object before we store. A reference count
573 * of exactly 1 means that the object was just created during the
574 * evaluation of an expression, and we can safely use it since it
575 * is not used anywhere else.
576 */
577 new_obj_desc = obj_desc;
578 if (obj_desc->common.reference_count > 1) {
579 status =
580 acpi_ut_copy_iobject_to_iobject(obj_desc, &new_obj_desc,
581 walk_state);
582 if (ACPI_FAILURE(status)) {
583 return_ACPI_STATUS(status);
584 }
585 }
586
587 /*
588 * If there is an object already in this slot, we either
589 * have to delete it, or if this is an argument and there
590 * is an object reference stored there, we have to do
591 * an indirect store!
592 */
593 if (current_obj_desc) {
594 /*
595 * Check for an indirect store if an argument
596 * contains an object reference (stored as an Node).
597 * We don't allow this automatic dereferencing for
598 * locals, since a store to a local should overwrite
599 * anything there, including an object reference.
600 *
601 * If both Arg0 and Local0 contain ref_of (Local4):
602 *
603 * Store (1, Arg0) - Causes indirect store to local4
604 * Store (1, Local0) - Stores 1 in local0, overwriting
605 * the reference to local4
606 * Store (1, de_refof (Local0)) - Causes indirect store to local4
607 *
608 * Weird, but true.
609 */
610 if (type == ACPI_REFCLASS_ARG) {
611 /*
612 * If we have a valid reference object that came from ref_of(),
613 * do the indirect store
614 */
615 if ((ACPI_GET_DESCRIPTOR_TYPE(current_obj_desc) ==
616 ACPI_DESC_TYPE_OPERAND)
617 && (current_obj_desc->common.type ==
618 ACPI_TYPE_LOCAL_REFERENCE)
619 && (current_obj_desc->reference.class ==
620 ACPI_REFCLASS_REFOF)) {
621 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
622 "Arg (%p) is an ObjRef(Node), storing in node %p\n",
623 new_obj_desc,
624 current_obj_desc));
625
626 /*
627 * Store this object to the Node (perform the indirect store)
628 * NOTE: No implicit conversion is performed, as per the ACPI
629 * specification rules on storing to Locals/Args.
630 */
631 status =
632 acpi_ex_store_object_to_node(new_obj_desc,
633 current_obj_desc->
634 reference.
635 object,
636 walk_state,
637 ACPI_NO_IMPLICIT_CONVERSION);
638
639 /* Remove local reference if we copied the object above */
640
641 if (new_obj_desc != obj_desc) {
642 acpi_ut_remove_reference(new_obj_desc);
643 }
644 return_ACPI_STATUS(status);
645 }
646 }
647
648 /* Delete the existing object before storing the new one */
649
650 acpi_ds_method_data_delete_value(type, index, walk_state);
651 }
652
653 /*
654 * Install the Obj descriptor (*new_obj_desc) into
655 * the descriptor for the Arg or Local.
656 * (increments the object reference count by one)
657 */
658 status =
659 acpi_ds_method_data_set_value(type, index, new_obj_desc,
660 walk_state);
661
662 /* Remove local reference if we copied the object above */
663
664 if (new_obj_desc != obj_desc) {
665 acpi_ut_remove_reference(new_obj_desc);
666 }
667
668 return_ACPI_STATUS(status);
669 }
670
671 #ifdef ACPI_OBSOLETE_FUNCTIONS
672 /*******************************************************************************
673 *
674 * FUNCTION: acpi_ds_method_data_get_type
675 *
676 * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP
677 * Index - Which Local or Arg whose type to get
678 * walk_state - Current walk state object
679 *
680 * RETURN: Data type of current value of the selected Arg or Local
681 *
682 * DESCRIPTION: Get the type of the object stored in the Local or Arg
683 *
684 ******************************************************************************/
685
686 acpi_object_type
687 acpi_ds_method_data_get_type(u16 opcode,
688 u32 index, struct acpi_walk_state *walk_state)
689 {
690 acpi_status status;
691 struct acpi_namespace_node *node;
692 union acpi_operand_object *object;
693
694 ACPI_FUNCTION_TRACE(ds_method_data_get_type);
695
696 /* Get the namespace node for the arg/local */
697
698 status = acpi_ds_method_data_get_node(opcode, index, walk_state, &node);
699 if (ACPI_FAILURE(status)) {
700 return_VALUE((ACPI_TYPE_NOT_FOUND));
701 }
702
703 /* Get the object */
704
705 object = acpi_ns_get_attached_object(node);
706 if (!object) {
707
708 /* Uninitialized local/arg, return TYPE_ANY */
709
710 return_VALUE(ACPI_TYPE_ANY);
711 }
712
713 /* Get the object type */
714
715 return_VALUE(ACPI_GET_OBJECT_TYPE(object));
716 }
717 #endif
Linux kernel - Deliverables
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