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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-24 08:41:41 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-24 13:07:53 -0400
commit816724e65c72a90a44fbad0ef0b59b186c85fa90 (patch)
tree421fa29aedff988e392f92780637553e275d37a0 /drivers/acpi/namespace
parent70ac4385a13f78bc478f26d317511893741b05bd (diff)
parentd384ea691fe4ea8c2dd5b9b8d9042eb181776f18 (diff)
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Conflicts: fs/nfs/inode.c fs/super.c Fix conflicts between patch 'NFS: Split fs/nfs/inode.c' and patch 'VFS: Permit filesystem to override root dentry on mount'
Diffstat (limited to 'drivers/acpi/namespace')
-rw-r--r--drivers/acpi/namespace/nsaccess.c46
-rw-r--r--drivers/acpi/namespace/nsalloc.c118
-rw-r--r--drivers/acpi/namespace/nsdump.c15
-rw-r--r--drivers/acpi/namespace/nsdumpdv.c6
-rw-r--r--drivers/acpi/namespace/nseval.c484
-rw-r--r--drivers/acpi/namespace/nsinit.c298
-rw-r--r--drivers/acpi/namespace/nsload.c27
-rw-r--r--drivers/acpi/namespace/nsnames.c14
-rw-r--r--drivers/acpi/namespace/nsobject.c15
-rw-r--r--drivers/acpi/namespace/nsparse.c6
-rw-r--r--drivers/acpi/namespace/nssearch.c148
-rw-r--r--drivers/acpi/namespace/nsutils.c104
-rw-r--r--drivers/acpi/namespace/nswalk.c6
-rw-r--r--drivers/acpi/namespace/nsxfeval.c203
-rw-r--r--drivers/acpi/namespace/nsxfname.c22
-rw-r--r--drivers/acpi/namespace/nsxfobj.c11
16 files changed, 691 insertions, 832 deletions
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
index 1149bc18fb35..48fadade52e2 100644
--- a/drivers/acpi/namespace/nsaccess.c
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -70,7 +70,7 @@ acpi_status acpi_ns_root_initialize(void)
70 union acpi_operand_object *obj_desc; 70 union acpi_operand_object *obj_desc;
71 acpi_string val = NULL; 71 acpi_string val = NULL;
72 72
73 ACPI_FUNCTION_TRACE("ns_root_initialize"); 73 ACPI_FUNCTION_TRACE(ns_root_initialize);
74 74
75 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 75 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
76 if (ACPI_FAILURE(status)) { 76 if (ACPI_FAILURE(status)) {
@@ -98,6 +98,7 @@ acpi_status acpi_ns_root_initialize(void)
98 "Entering predefined entries into namespace\n")); 98 "Entering predefined entries into namespace\n"));
99 99
100 for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { 100 for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
101
101 /* _OSI is optional for now, will be permanent later */ 102 /* _OSI is optional for now, will be permanent later */
102 103
103 if (!ACPI_STRCMP(init_val->name, "_OSI") 104 if (!ACPI_STRCMP(init_val->name, "_OSI")
@@ -156,7 +157,7 @@ acpi_status acpi_ns_root_initialize(void)
156 157
157#if defined (ACPI_ASL_COMPILER) 158#if defined (ACPI_ASL_COMPILER)
158 159
159 /* save the parameter count for the i_aSL compiler */ 160 /* Save the parameter count for the i_aSL compiler */
160 161
161 new_node->value = obj_desc->method.param_count; 162 new_node->value = obj_desc->method.param_count;
162#else 163#else
@@ -258,10 +259,8 @@ acpi_status acpi_ns_root_initialize(void)
258 /* Save a handle to "_GPE", it is always present */ 259 /* Save a handle to "_GPE", it is always present */
259 260
260 if (ACPI_SUCCESS(status)) { 261 if (ACPI_SUCCESS(status)) {
261 status = 262 status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH,
262 acpi_ns_get_node_by_path("\\_GPE", NULL, 263 &acpi_gbl_fadt_gpe_device);
263 ACPI_NS_NO_UPSEARCH,
264 &acpi_gbl_fadt_gpe_device);
265 } 264 }
266 265
267 return_ACPI_STATUS(status); 266 return_ACPI_STATUS(status);
@@ -310,17 +309,17 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
310 acpi_object_type type_to_check_for; 309 acpi_object_type type_to_check_for;
311 acpi_object_type this_search_type; 310 acpi_object_type this_search_type;
312 u32 search_parent_flag = ACPI_NS_SEARCH_PARENT; 311 u32 search_parent_flag = ACPI_NS_SEARCH_PARENT;
313 u32 local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | 312 u32 local_flags;
314 ACPI_NS_SEARCH_PARENT);
315 313
316 ACPI_FUNCTION_TRACE("ns_lookup"); 314 ACPI_FUNCTION_TRACE(ns_lookup);
317 315
318 if (!return_node) { 316 if (!return_node) {
319 return_ACPI_STATUS(AE_BAD_PARAMETER); 317 return_ACPI_STATUS(AE_BAD_PARAMETER);
320 } 318 }
321 319
322 acpi_gbl_ns_lookup_count++; 320 local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT);
323 *return_node = ACPI_ENTRY_NOT_FOUND; 321 *return_node = ACPI_ENTRY_NOT_FOUND;
322 acpi_gbl_ns_lookup_count++;
324 323
325 if (!acpi_gbl_root_node) { 324 if (!acpi_gbl_root_node) {
326 return_ACPI_STATUS(AE_NO_NAMESPACE); 325 return_ACPI_STATUS(AE_NO_NAMESPACE);
@@ -346,14 +345,17 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
346 return_ACPI_STATUS(AE_AML_INTERNAL); 345 return_ACPI_STATUS(AE_AML_INTERNAL);
347 } 346 }
348 347
349 /* 348 if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) {
350 * This node might not be a actual "scope" node (such as a 349 /*
351 * Device/Method, etc.) It could be a Package or other object node. 350 * This node might not be a actual "scope" node (such as a
352 * Backup up the tree to find the containing scope node. 351 * Device/Method, etc.) It could be a Package or other object node.
353 */ 352 * Backup up the tree to find the containing scope node.
354 while (!acpi_ns_opens_scope(prefix_node->type) && 353 */
355 prefix_node->type != ACPI_TYPE_ANY) { 354 while (!acpi_ns_opens_scope(prefix_node->type) &&
356 prefix_node = acpi_ns_get_parent_node(prefix_node); 355 prefix_node->type != ACPI_TYPE_ANY) {
356 prefix_node =
357 acpi_ns_get_parent_node(prefix_node);
358 }
357 } 359 }
358 } 360 }
359 361
@@ -365,6 +367,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
365 * Begin examination of the actual pathname 367 * Begin examination of the actual pathname
366 */ 368 */
367 if (!pathname) { 369 if (!pathname) {
370
368 /* A Null name_path is allowed and refers to the root */ 371 /* A Null name_path is allowed and refers to the root */
369 372
370 num_segments = 0; 373 num_segments = 0;
@@ -389,6 +392,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
389 * to the current scope). 392 * to the current scope).
390 */ 393 */
391 if (*path == (u8) AML_ROOT_PREFIX) { 394 if (*path == (u8) AML_ROOT_PREFIX) {
395
392 /* Pathname is fully qualified, start from the root */ 396 /* Pathname is fully qualified, start from the root */
393 397
394 this_node = acpi_gbl_root_node; 398 this_node = acpi_gbl_root_node;
@@ -416,6 +420,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
416 this_node = prefix_node; 420 this_node = prefix_node;
417 num_carats = 0; 421 num_carats = 0;
418 while (*path == (u8) AML_PARENT_PREFIX) { 422 while (*path == (u8) AML_PARENT_PREFIX) {
423
419 /* Name is fully qualified, no search rules apply */ 424 /* Name is fully qualified, no search rules apply */
420 425
421 search_parent_flag = ACPI_NS_NO_UPSEARCH; 426 search_parent_flag = ACPI_NS_NO_UPSEARCH;
@@ -430,6 +435,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
430 num_carats++; 435 num_carats++;
431 this_node = acpi_ns_get_parent_node(this_node); 436 this_node = acpi_ns_get_parent_node(this_node);
432 if (!this_node) { 437 if (!this_node) {
438
433 /* Current scope has no parent scope */ 439 /* Current scope has no parent scope */
434 440
435 ACPI_ERROR((AE_INFO, 441 ACPI_ERROR((AE_INFO,
@@ -569,6 +575,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
569 &this_node); 575 &this_node);
570 if (ACPI_FAILURE(status)) { 576 if (ACPI_FAILURE(status)) {
571 if (status == AE_NOT_FOUND) { 577 if (status == AE_NOT_FOUND) {
578
572 /* Name not found in ACPI namespace */ 579 /* Name not found in ACPI namespace */
573 580
574 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 581 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
@@ -602,10 +609,11 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
602 (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) && 609 (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) &&
603 (this_node->type != ACPI_TYPE_ANY) && 610 (this_node->type != ACPI_TYPE_ANY) &&
604 (this_node->type != type_to_check_for)) { 611 (this_node->type != type_to_check_for)) {
612
605 /* Complain about a type mismatch */ 613 /* Complain about a type mismatch */
606 614
607 ACPI_WARNING((AE_INFO, 615 ACPI_WARNING((AE_INFO,
608 "ns_lookup: Type mismatch on %4.4s (%s), searching for (%s)", 616 "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)",
609 ACPI_CAST_PTR(char, &simple_name), 617 ACPI_CAST_PTR(char, &simple_name),
610 acpi_ut_get_type_name(this_node->type), 618 acpi_ut_get_type_name(this_node->type),
611 acpi_ut_get_type_name 619 acpi_ut_get_type_name
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c
index 9b871f38b61b..dc3f0739a46b 100644
--- a/drivers/acpi/namespace/nsalloc.c
+++ b/drivers/acpi/namespace/nsalloc.c
@@ -47,9 +47,6 @@
47#define _COMPONENT ACPI_NAMESPACE 47#define _COMPONENT ACPI_NAMESPACE
48ACPI_MODULE_NAME("nsalloc") 48ACPI_MODULE_NAME("nsalloc")
49 49
50/* Local prototypes */
51static void acpi_ns_remove_reference(struct acpi_namespace_node *node);
52
53/******************************************************************************* 50/*******************************************************************************
54 * 51 *
55 * FUNCTION: acpi_ns_create_node 52 * FUNCTION: acpi_ns_create_node
@@ -61,14 +58,13 @@ static void acpi_ns_remove_reference(struct acpi_namespace_node *node);
61 * DESCRIPTION: Create a namespace node 58 * DESCRIPTION: Create a namespace node
62 * 59 *
63 ******************************************************************************/ 60 ******************************************************************************/
64
65struct acpi_namespace_node *acpi_ns_create_node(u32 name) 61struct acpi_namespace_node *acpi_ns_create_node(u32 name)
66{ 62{
67 struct acpi_namespace_node *node; 63 struct acpi_namespace_node *node;
68 64
69 ACPI_FUNCTION_TRACE("ns_create_node"); 65 ACPI_FUNCTION_TRACE(ns_create_node);
70 66
71 node = ACPI_MEM_CALLOCATE(sizeof(struct acpi_namespace_node)); 67 node = acpi_os_acquire_object(acpi_gbl_namespace_cache);
72 if (!node) { 68 if (!node) {
73 return_PTR(NULL); 69 return_PTR(NULL);
74 } 70 }
@@ -76,9 +72,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name)
76 ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++); 72 ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);
77 73
78 node->name.integer = name; 74 node->name.integer = name;
79 node->reference_count = 1;
80 ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED); 75 ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);
81
82 return_PTR(node); 76 return_PTR(node);
83} 77}
84 78
@@ -100,7 +94,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
100 struct acpi_namespace_node *prev_node; 94 struct acpi_namespace_node *prev_node;
101 struct acpi_namespace_node *next_node; 95 struct acpi_namespace_node *next_node;
102 96
103 ACPI_FUNCTION_TRACE_PTR("ns_delete_node", node); 97 ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node);
104 98
105 parent_node = acpi_ns_get_parent_node(node); 99 parent_node = acpi_ns_get_parent_node(node);
106 100
@@ -115,6 +109,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
115 } 109 }
116 110
117 if (prev_node) { 111 if (prev_node) {
112
118 /* Node is not first child, unlink it */ 113 /* Node is not first child, unlink it */
119 114
120 prev_node->peer = next_node->peer; 115 prev_node->peer = next_node->peer;
@@ -125,6 +120,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
125 /* Node is first child (has no previous peer) */ 120 /* Node is first child (has no previous peer) */
126 121
127 if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { 122 if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
123
128 /* No peers at all */ 124 /* No peers at all */
129 125
130 parent_node->child = NULL; 126 parent_node->child = NULL;
@@ -137,10 +133,10 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
137 ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); 133 ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++);
138 134
139 /* 135 /*
140 * Detach an object if there is one then delete the node 136 * Detach an object if there is one, then delete the node
141 */ 137 */
142 acpi_ns_detach_object(node); 138 acpi_ns_detach_object(node);
143 ACPI_MEM_FREE(node); 139 (void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
144 return_VOID; 140 return_VOID;
145} 141}
146 142
@@ -171,7 +167,7 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp
171 acpi_owner_id owner_id = 0; 167 acpi_owner_id owner_id = 0;
172 struct acpi_namespace_node *child_node; 168 struct acpi_namespace_node *child_node;
173 169
174 ACPI_FUNCTION_TRACE("ns_install_node"); 170 ACPI_FUNCTION_TRACE(ns_install_node);
175 171
176 /* 172 /*
177 * Get the owner ID from the Walk state 173 * Get the owner ID from the Walk state
@@ -216,14 +212,6 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp
216 acpi_ut_get_type_name(parent_node->type), 212 acpi_ut_get_type_name(parent_node->type),
217 parent_node)); 213 parent_node));
218 214
219 /*
220 * Increment the reference count(s) of all parents up to
221 * the root!
222 */
223 while ((node = acpi_ns_get_parent_node(node)) != NULL) {
224 node->reference_count++;
225 }
226
227 return_VOID; 215 return_VOID;
228} 216}
229 217
@@ -244,10 +232,9 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
244{ 232{
245 struct acpi_namespace_node *child_node; 233 struct acpi_namespace_node *child_node;
246 struct acpi_namespace_node *next_node; 234 struct acpi_namespace_node *next_node;
247 struct acpi_namespace_node *node;
248 u8 flags; 235 u8 flags;
249 236
250 ACPI_FUNCTION_TRACE_PTR("ns_delete_children", parent_node); 237 ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node);
251 238
252 if (!parent_node) { 239 if (!parent_node) {
253 return_VOID; 240 return_VOID;
@@ -264,6 +251,7 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
264 * Deallocate all children at this level 251 * Deallocate all children at this level
265 */ 252 */
266 do { 253 do {
254
267 /* Get the things we need */ 255 /* Get the things we need */
268 256
269 next_node = child_node->peer; 257 next_node = child_node->peer;
@@ -289,26 +277,10 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node)
289 */ 277 */
290 acpi_ns_detach_object(child_node); 278 acpi_ns_detach_object(child_node);
291 279
292 /*
293 * Decrement the reference count(s) of all parents up to
294 * the root! (counts were incremented when the node was created)
295 */
296 node = child_node;
297 while ((node = acpi_ns_get_parent_node(node)) != NULL) {
298 node->reference_count--;
299 }
300
301 /* There should be only one reference remaining on this node */
302
303 if (child_node->reference_count != 1) {
304 ACPI_WARNING((AE_INFO,
305 "Existing references (%d) on node being deleted (%p)",
306 child_node->reference_count, child_node));
307 }
308
309 /* Now we can delete the node */ 280 /* Now we can delete the node */
310 281
311 ACPI_MEM_FREE(child_node); 282 (void)acpi_os_release_object(acpi_gbl_namespace_cache,
283 child_node);
312 284
313 /* And move on to the next child in the list */ 285 /* And move on to the next child in the list */
314 286
@@ -341,7 +313,7 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
341 struct acpi_namespace_node *child_node = NULL; 313 struct acpi_namespace_node *child_node = NULL;
342 u32 level = 1; 314 u32 level = 1;
343 315
344 ACPI_FUNCTION_TRACE("ns_delete_namespace_subtree"); 316 ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree);
345 317
346 if (!parent_node) { 318 if (!parent_node) {
347 return_VOID; 319 return_VOID;
@@ -352,11 +324,14 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
352 * to where we started. 324 * to where we started.
353 */ 325 */
354 while (level > 0) { 326 while (level > 0) {
327
355 /* Get the next node in this scope (NULL if none) */ 328 /* Get the next node in this scope (NULL if none) */
356 329
357 child_node = acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, 330 child_node =
358 child_node); 331 acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
332 child_node);
359 if (child_node) { 333 if (child_node) {
334
360 /* Found a child node - detach any attached object */ 335 /* Found a child node - detach any attached object */
361 336
362 acpi_ns_detach_object(child_node); 337 acpi_ns_detach_object(child_node);
@@ -401,55 +376,6 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node)
401 376
402/******************************************************************************* 377/*******************************************************************************
403 * 378 *
404 * FUNCTION: acpi_ns_remove_reference
405 *
406 * PARAMETERS: Node - Named node whose reference count is to be
407 * decremented
408 *
409 * RETURN: None.
410 *
411 * DESCRIPTION: Remove a Node reference. Decrements the reference count
412 * of all parent Nodes up to the root. Any node along
413 * the way that reaches zero references is freed.
414 *
415 ******************************************************************************/
416
417static void acpi_ns_remove_reference(struct acpi_namespace_node *node)
418{
419 struct acpi_namespace_node *parent_node;
420 struct acpi_namespace_node *this_node;
421
422 ACPI_FUNCTION_ENTRY();
423
424 /*
425 * Decrement the reference count(s) of this node and all
426 * nodes up to the root, Delete anything with zero remaining references.
427 */
428 this_node = node;
429 while (this_node) {
430 /* Prepare to move up to parent */
431
432 parent_node = acpi_ns_get_parent_node(this_node);
433
434 /* Decrement the reference count on this node */
435
436 this_node->reference_count--;
437
438 /* Delete the node if no more references */
439
440 if (!this_node->reference_count) {
441 /* Delete all children and delete the node */
442
443 acpi_ns_delete_children(this_node);
444 acpi_ns_delete_node(this_node);
445 }
446
447 this_node = parent_node;
448 }
449}
450
451/*******************************************************************************
452 *
453 * FUNCTION: acpi_ns_delete_namespace_by_owner 379 * FUNCTION: acpi_ns_delete_namespace_by_owner
454 * 380 *
455 * PARAMETERS: owner_id - All nodes with this owner will be deleted 381 * PARAMETERS: owner_id - All nodes with this owner will be deleted
@@ -469,15 +395,15 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
469 u32 level; 395 u32 level;
470 struct acpi_namespace_node *parent_node; 396 struct acpi_namespace_node *parent_node;
471 397
472 ACPI_FUNCTION_TRACE_U32("ns_delete_namespace_by_owner", owner_id); 398 ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id);
473 399
474 if (owner_id == 0) { 400 if (owner_id == 0) {
475 return_VOID; 401 return_VOID;
476 } 402 }
477 403
404 deletion_node = NULL;
478 parent_node = acpi_gbl_root_node; 405 parent_node = acpi_gbl_root_node;
479 child_node = NULL; 406 child_node = NULL;
480 deletion_node = NULL;
481 level = 1; 407 level = 1;
482 408
483 /* 409 /*
@@ -494,12 +420,14 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id)
494 child_node); 420 child_node);
495 421
496 if (deletion_node) { 422 if (deletion_node) {
497 acpi_ns_remove_reference(deletion_node); 423 acpi_ns_delete_children(deletion_node);
424 acpi_ns_delete_node(deletion_node);
498 deletion_node = NULL; 425 deletion_node = NULL;
499 } 426 }
500 427
501 if (child_node) { 428 if (child_node) {
502 if (child_node->owner_id == owner_id) { 429 if (child_node->owner_id == owner_id) {
430
503 /* Found a matching child node - detach any attached object */ 431 /* Found a matching child node - detach any attached object */
504 432
505 acpi_ns_detach_object(child_node); 433 acpi_ns_detach_object(child_node);
diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c
index a2807317a84b..d72df66aa965 100644
--- a/drivers/acpi/namespace/nsdump.c
+++ b/drivers/acpi/namespace/nsdump.c
@@ -75,7 +75,7 @@ void acpi_ns_print_pathname(u32 num_segments, char *pathname)
75{ 75{
76 acpi_native_uint i; 76 acpi_native_uint i;
77 77
78 ACPI_FUNCTION_NAME("ns_print_pathname"); 78 ACPI_FUNCTION_NAME(ns_print_pathname);
79 79
80 if (!(acpi_dbg_level & ACPI_LV_NAMES) 80 if (!(acpi_dbg_level & ACPI_LV_NAMES)
81 || !(acpi_dbg_layer & ACPI_NAMESPACE)) { 81 || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
@@ -123,7 +123,7 @@ void
123acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component) 123acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
124{ 124{
125 125
126 ACPI_FUNCTION_TRACE("ns_dump_pathname"); 126 ACPI_FUNCTION_TRACE(ns_dump_pathname);
127 127
128 /* Do this only if the requested debug level and component are enabled */ 128 /* Do this only if the requested debug level and component are enabled */
129 129
@@ -167,7 +167,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
167 u32 dbg_level; 167 u32 dbg_level;
168 u32 i; 168 u32 i;
169 169
170 ACPI_FUNCTION_NAME("ns_dump_one_object"); 170 ACPI_FUNCTION_NAME(ns_dump_one_object);
171 171
172 /* Is output enabled? */ 172 /* Is output enabled? */
173 173
@@ -191,6 +191,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
191 } 191 }
192 192
193 if (!(info->display_type & ACPI_DISPLAY_SHORT)) { 193 if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
194
194 /* Indent the object according to the level */ 195 /* Indent the object according to the level */
195 196
196 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " "); 197 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
@@ -203,6 +204,9 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
203 } 204 }
204 205
205 if (!acpi_ut_valid_acpi_name(this_node->name.integer)) { 206 if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
207 this_node->name.integer =
208 acpi_ut_repair_name(this_node->name.integer);
209
206 ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X", 210 ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
207 this_node->name.integer)); 211 this_node->name.integer));
208 } 212 }
@@ -226,6 +230,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
226 case ACPI_DISPLAY_SUMMARY: 230 case ACPI_DISPLAY_SUMMARY:
227 231
228 if (!obj_desc) { 232 if (!obj_desc) {
233
229 /* No attached object, we are done */ 234 /* No attached object, we are done */
230 235
231 acpi_os_printf("\n"); 236 acpi_os_printf("\n");
@@ -419,6 +424,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
419 424
420 acpi_os_printf("O:%p", obj_desc); 425 acpi_os_printf("O:%p", obj_desc);
421 if (!obj_desc) { 426 if (!obj_desc) {
427
422 /* No attached object, we are done */ 428 /* No attached object, we are done */
423 429
424 acpi_os_printf("\n"); 430 acpi_os_printf("\n");
@@ -669,7 +675,7 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
669{ 675{
670 acpi_handle search_handle = search_base; 676 acpi_handle search_handle = search_base;
671 677
672 ACPI_FUNCTION_TRACE("ns_dump_tables"); 678 ACPI_FUNCTION_TRACE(ns_dump_tables);
673 679
674 if (!acpi_gbl_root_node) { 680 if (!acpi_gbl_root_node) {
675 /* 681 /*
@@ -682,6 +688,7 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
682 } 688 }
683 689
684 if (ACPI_NS_ALL == search_base) { 690 if (ACPI_NS_ALL == search_base) {
691
685 /* Entire namespace */ 692 /* Entire namespace */
686 693
687 search_handle = acpi_gbl_root_node; 694 search_handle = acpi_gbl_root_node;
diff --git a/drivers/acpi/namespace/nsdumpdv.c b/drivers/acpi/namespace/nsdumpdv.c
index aff899a935e3..c6bf5d30fca3 100644
--- a/drivers/acpi/namespace/nsdumpdv.c
+++ b/drivers/acpi/namespace/nsdumpdv.c
@@ -74,7 +74,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
74 acpi_status status; 74 acpi_status status;
75 u32 i; 75 u32 i;
76 76
77 ACPI_FUNCTION_NAME("ns_dump_one_device"); 77 ACPI_FUNCTION_NAME(ns_dump_one_device);
78 78
79 status = 79 status =
80 acpi_ns_dump_one_object(obj_handle, level, context, return_value); 80 acpi_ns_dump_one_object(obj_handle, level, context, return_value);
@@ -92,7 +92,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
92 info->hardware_id.value, 92 info->hardware_id.value,
93 ACPI_FORMAT_UINT64(info->address), 93 ACPI_FORMAT_UINT64(info->address),
94 info->current_status)); 94 info->current_status));
95 ACPI_MEM_FREE(info); 95 ACPI_FREE(info);
96 } 96 }
97 97
98 return (status); 98 return (status);
@@ -115,7 +115,7 @@ void acpi_ns_dump_root_devices(void)
115 acpi_handle sys_bus_handle; 115 acpi_handle sys_bus_handle;
116 acpi_status status; 116 acpi_status status;
117 117
118 ACPI_FUNCTION_NAME("ns_dump_root_devices"); 118 ACPI_FUNCTION_NAME(ns_dump_root_devices);
119 119
120 /* Only dump the table if tracing is enabled */ 120 /* Only dump the table if tracing is enabled */
121 121
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index 19d7b94d40c3..4b0a4a8c9843 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -1,7 +1,6 @@
1/******************************************************************************* 1/*******************************************************************************
2 * 2 *
3 * Module Name: nseval - Object evaluation interfaces -- includes control 3 * Module Name: nseval - Object evaluation, includes control method execution
4 * method lookup and execution.
5 * 4 *
6 ******************************************************************************/ 5 ******************************************************************************/
7 6
@@ -50,196 +49,14 @@
50#define _COMPONENT ACPI_NAMESPACE 49#define _COMPONENT ACPI_NAMESPACE
51ACPI_MODULE_NAME("nseval") 50ACPI_MODULE_NAME("nseval")
52 51
53/* Local prototypes */
54static acpi_status
55acpi_ns_execute_control_method(struct acpi_parameter_info *info);
56
57static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info);
58
59/*******************************************************************************
60 *
61 * FUNCTION: acpi_ns_evaluate_relative
62 *
63 * PARAMETERS: Pathname - Name of method to execute, If NULL, the
64 * handle is the object to execute
65 * Info - Method info block, contains:
66 * return_object - Where to put method's return value (if
67 * any). If NULL, no value is returned.
68 * Params - List of parameters to pass to the method,
69 * terminated by NULL. Params itself may be
70 * NULL if no parameters are being passed.
71 *
72 * RETURN: Status
73 *
74 * DESCRIPTION: Evaluate the object or find and execute the requested method
75 *
76 * MUTEX: Locks Namespace
77 *
78 ******************************************************************************/
79
80acpi_status
81acpi_ns_evaluate_relative(char *pathname, struct acpi_parameter_info *info)
82{
83 acpi_status status;
84 struct acpi_namespace_node *node = NULL;
85 union acpi_generic_state *scope_info;
86 char *internal_path = NULL;
87
88 ACPI_FUNCTION_TRACE("ns_evaluate_relative");
89
90 /*
91 * Must have a valid object handle
92 */
93 if (!info || !info->node) {
94 return_ACPI_STATUS(AE_BAD_PARAMETER);
95 }
96
97 /* Build an internal name string for the method */
98
99 status = acpi_ns_internalize_name(pathname, &internal_path);
100 if (ACPI_FAILURE(status)) {
101 return_ACPI_STATUS(status);
102 }
103
104 scope_info = acpi_ut_create_generic_state();
105 if (!scope_info) {
106 goto cleanup1;
107 }
108
109 /* Get the prefix handle and Node */
110
111 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
112 if (ACPI_FAILURE(status)) {
113 goto cleanup;
114 }
115
116 info->node = acpi_ns_map_handle_to_node(info->node);
117 if (!info->node) {
118 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
119 status = AE_BAD_PARAMETER;
120 goto cleanup;
121 }
122
123 /* Lookup the name in the namespace */
124
125 scope_info->scope.node = info->node;
126 status = acpi_ns_lookup(scope_info, internal_path, ACPI_TYPE_ANY,
127 ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
128 &node);
129
130 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
131
132 if (ACPI_FAILURE(status)) {
133 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Object [%s] not found [%s]\n",
134 pathname, acpi_format_exception(status)));
135 goto cleanup;
136 }
137
138 /*
139 * Now that we have a handle to the object, we can attempt to evaluate it.
140 */
141 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
142 pathname, node, acpi_ns_get_attached_object(node)));
143
144 info->node = node;
145 status = acpi_ns_evaluate_by_handle(info);
146
147 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
148 "*** Completed eval of object %s ***\n", pathname));
149
150 cleanup:
151 acpi_ut_delete_generic_state(scope_info);
152
153 cleanup1:
154 ACPI_MEM_FREE(internal_path);
155 return_ACPI_STATUS(status);
156}
157
158/******************************************************************************* 52/*******************************************************************************
159 * 53 *
160 * FUNCTION: acpi_ns_evaluate_by_name 54 * FUNCTION: acpi_ns_evaluate
161 * 55 *
162 * PARAMETERS: Pathname - Fully qualified pathname to the object 56 * PARAMETERS: Info - Evaluation info block, contains:
163 * Info - Method info block, contains: 57 * prefix_node - Prefix or Method/Object Node to execute
164 * return_object - Where to put method's return value (if 58 * Pathname - Name of method to execute, If NULL, the
165 * any). If NULL, no value is returned. 59 * Node is the object to execute
166 * Params - List of parameters to pass to the method,
167 * terminated by NULL. Params itself may be
168 * NULL if no parameters are being passed.
169 *
170 * RETURN: Status
171 *
172 * DESCRIPTION: Evaluate the object or rind and execute the requested method
173 * passing the given parameters
174 *
175 * MUTEX: Locks Namespace
176 *
177 ******************************************************************************/
178
179acpi_status
180acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info)
181{
182 acpi_status status;
183 char *internal_path = NULL;
184
185 ACPI_FUNCTION_TRACE("ns_evaluate_by_name");
186
187 /* Build an internal name string for the method */
188
189 status = acpi_ns_internalize_name(pathname, &internal_path);
190 if (ACPI_FAILURE(status)) {
191 return_ACPI_STATUS(status);
192 }
193
194 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
195 if (ACPI_FAILURE(status)) {
196 goto cleanup;
197 }
198
199 /* Lookup the name in the namespace */
200
201 status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY,
202 ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
203 &info->node);
204
205 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
206
207 if (ACPI_FAILURE(status)) {
208 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
209 "Object at [%s] was not found, status=%.4X\n",
210 pathname, status));
211 goto cleanup;
212 }
213
214 /*
215 * Now that we have a handle to the object, we can attempt to evaluate it.
216 */
217 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n",
218 pathname, info->node,
219 acpi_ns_get_attached_object(info->node)));
220
221 status = acpi_ns_evaluate_by_handle(info);
222
223 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
224 "*** Completed eval of object %s ***\n", pathname));
225
226 cleanup:
227
228 /* Cleanup */
229
230 if (internal_path) {
231 ACPI_MEM_FREE(internal_path);
232 }
233
234 return_ACPI_STATUS(status);
235}
236
237/*******************************************************************************
238 *
239 * FUNCTION: acpi_ns_evaluate_by_handle
240 *
241 * PARAMETERS: Info - Method info block, contains:
242 * Node - Method/Object Node to execute
243 * Parameters - List of parameters to pass to the method, 60 * Parameters - List of parameters to pass to the method,
244 * terminated by NULL. Params itself may be 61 * terminated by NULL. Params itself may be
245 * NULL if no parameters are being passed. 62 * NULL if no parameters are being passed.
@@ -248,29 +65,21 @@ acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info)
248 * parameter_type - Type of Parameter list 65 * parameter_type - Type of Parameter list
249 * return_object - Where to put method's return value (if 66 * return_object - Where to put method's return value (if
250 * any). If NULL, no value is returned. 67 * any). If NULL, no value is returned.
68 * Flags - ACPI_IGNORE_RETURN_VALUE to delete return
251 * 69 *
252 * RETURN: Status 70 * RETURN: Status
253 * 71 *
254 * DESCRIPTION: Evaluate object or execute the requested method passing the 72 * DESCRIPTION: Execute a control method or return the current value of an
255 * given parameters 73 * ACPI namespace object.
256 * 74 *
257 * MUTEX: Locks Namespace 75 * MUTEX: Locks interpreter
258 * 76 *
259 ******************************************************************************/ 77 ******************************************************************************/
260 78acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
261acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info)
262{ 79{
263 acpi_status status; 80 acpi_status status;
264 81
265 ACPI_FUNCTION_TRACE("ns_evaluate_by_handle"); 82 ACPI_FUNCTION_TRACE(ns_evaluate);
266
267 /* Check if namespace has been initialized */
268
269 if (!acpi_gbl_root_node) {
270 return_ACPI_STATUS(AE_NO_NAMESPACE);
271 }
272
273 /* Parameter Validation */
274 83
275 if (!info) { 84 if (!info) {
276 return_ACPI_STATUS(AE_BAD_PARAMETER); 85 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -280,202 +89,120 @@ acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info)
280 89
281 info->return_object = NULL; 90 info->return_object = NULL;
282 91
283 /* Get the prefix handle and Node */ 92 /*
284 93 * Get the actual namespace node for the target object. Handles these cases:
285 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 94 *
95 * 1) Null node, Pathname (absolute path)
96 * 2) Node, Pathname (path relative to Node)
97 * 3) Node, Null Pathname
98 */
99 status = acpi_ns_get_node(info->prefix_node, info->pathname,
100 ACPI_NS_NO_UPSEARCH, &info->resolved_node);
286 if (ACPI_FAILURE(status)) { 101 if (ACPI_FAILURE(status)) {
287 return_ACPI_STATUS(status); 102 return_ACPI_STATUS(status);
288 } 103 }
289 104
290 info->node = acpi_ns_map_handle_to_node(info->node);
291 if (!info->node) {
292 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
293 return_ACPI_STATUS(AE_BAD_PARAMETER);
294 }
295
296 /* 105 /*
297 * For a method alias, we must grab the actual method node so that proper 106 * For a method alias, we must grab the actual method node so that proper
298 * scoping context will be established before execution. 107 * scoping context will be established before execution.
299 */ 108 */
300 if (acpi_ns_get_type(info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) { 109 if (acpi_ns_get_type(info->resolved_node) ==
301 info->node = 110 ACPI_TYPE_LOCAL_METHOD_ALIAS) {
111 info->resolved_node =
302 ACPI_CAST_PTR(struct acpi_namespace_node, 112 ACPI_CAST_PTR(struct acpi_namespace_node,
303 info->node->object); 113 info->resolved_node->object);
304 } 114 }
305 115
116 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname,
117 info->resolved_node,
118 acpi_ns_get_attached_object(info->resolved_node)));
119
306 /* 120 /*
307 * Two major cases here: 121 * Two major cases here:
308 * 1) The object is an actual control method -- execute it.
309 * 2) The object is not a method -- just return it's current value
310 * 122 *
311 * In both cases, the namespace is unlocked by the acpi_ns* procedure 123 * 1) The object is a control method -- execute it
124 * 2) The object is not a method -- just return it's current value
312 */ 125 */
313 if (acpi_ns_get_type(info->node) == ACPI_TYPE_METHOD) { 126 if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) {
314 /*
315 * Case 1) We have an actual control method to execute
316 */
317 status = acpi_ns_execute_control_method(info);
318 } else {
319 /* 127 /*
320 * Case 2) Object is NOT a method, just return its current value 128 * 1) Object is a control method - execute it
321 */ 129 */
322 status = acpi_ns_get_object_value(info);
323 }
324
325 /*
326 * Check if there is a return value on the stack that must be dealt with
327 */
328 if (status == AE_CTRL_RETURN_VALUE) {
329 /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
330
331 status = AE_OK;
332 }
333
334 /*
335 * Namespace was unlocked by the handling acpi_ns* function, so we
336 * just return
337 */
338 return_ACPI_STATUS(status);
339}
340
341/*******************************************************************************
342 *
343 * FUNCTION: acpi_ns_execute_control_method
344 *
345 * PARAMETERS: Info - Method info block, contains:
346 * Node - Method Node to execute
347 * obj_desc - Method object
348 * Parameters - List of parameters to pass to the method,
349 * terminated by NULL. Params itself may be
350 * NULL if no parameters are being passed.
351 * return_object - Where to put method's return value (if
352 * any). If NULL, no value is returned.
353 * parameter_type - Type of Parameter list
354 * return_object - Where to put method's return value (if
355 * any). If NULL, no value is returned.
356 *
357 * RETURN: Status
358 *
359 * DESCRIPTION: Execute the requested method passing the given parameters
360 *
361 * MUTEX: Assumes namespace is locked
362 *
363 ******************************************************************************/
364
365static acpi_status
366acpi_ns_execute_control_method(struct acpi_parameter_info *info)
367{
368 acpi_status status;
369
370 ACPI_FUNCTION_TRACE("ns_execute_control_method");
371
372 /* Verify that there is a method associated with this object */
373
374 info->obj_desc = acpi_ns_get_attached_object(info->node);
375 if (!info->obj_desc) {
376 ACPI_ERROR((AE_INFO, "No attached method object"));
377 130
378 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 131 /* Verify that there is a method object associated with this node */
379 return_ACPI_STATUS(AE_NULL_OBJECT);
380 }
381
382 ACPI_DUMP_PATHNAME(info->node, "Execute Method:",
383 ACPI_LV_INFO, _COMPONENT);
384
385 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Method at AML address %p Length %X\n",
386 info->obj_desc->method.aml_start + 1,
387 info->obj_desc->method.aml_length - 1));
388
389 /*
390 * Unlock the namespace before execution. This allows namespace access
391 * via the external Acpi* interfaces while a method is being executed.
392 * However, any namespace deletion must acquire both the namespace and
393 * interpreter locks to ensure that no thread is using the portion of the
394 * namespace that is being deleted.
395 */
396 status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
397 if (ACPI_FAILURE(status)) {
398 return_ACPI_STATUS(status);
399 }
400 132
401 /* 133 info->obj_desc =
402 * Execute the method via the interpreter. The interpreter is locked 134 acpi_ns_get_attached_object(info->resolved_node);
403 * here before calling into the AML parser 135 if (!info->obj_desc) {
404 */ 136 ACPI_ERROR((AE_INFO,
405 status = acpi_ex_enter_interpreter(); 137 "Control method has no attached sub-object"));
406 if (ACPI_FAILURE(status)) { 138 return_ACPI_STATUS(AE_NULL_OBJECT);
407 return_ACPI_STATUS(status); 139 }
408 }
409 140
410 status = acpi_ps_execute_method(info); 141 ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:",
411 acpi_ex_exit_interpreter(); 142 ACPI_LV_INFO, _COMPONENT);
412 143
413 return_ACPI_STATUS(status); 144 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
414} 145 "Method at AML address %p Length %X\n",
146 info->obj_desc->method.aml_start + 1,
147 info->obj_desc->method.aml_length - 1));
415 148
416/******************************************************************************* 149 /*
417 * 150 * Any namespace deletion must acquire both the namespace and
418 * FUNCTION: acpi_ns_get_object_value 151 * interpreter locks to ensure that no thread is using the portion of
419 * 152 * the namespace that is being deleted.
420 * PARAMETERS: Info - Method info block, contains: 153 *
421 * Node - Object's NS node 154 * Execute the method via the interpreter. The interpreter is locked
422 * return_object - Where to put object value (if 155 * here before calling into the AML parser
423 * any). If NULL, no value is returned. 156 */
424 * 157 status = acpi_ex_enter_interpreter();
425 * RETURN: Status 158 if (ACPI_FAILURE(status)) {
426 * 159 return_ACPI_STATUS(status);
427 * DESCRIPTION: Return the current value of the object 160 }
428 *
429 * MUTEX: Assumes namespace is locked, leaves namespace unlocked
430 *
431 ******************************************************************************/
432 161
433static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info) 162 status = acpi_ps_execute_method(info);
434{ 163 acpi_ex_exit_interpreter();
435 acpi_status status = AE_OK; 164 } else {
436 struct acpi_namespace_node *resolved_node = info->node; 165 /*
166 * 2) Object is not a method, return its current value
167 */
437 168
438 ACPI_FUNCTION_TRACE("ns_get_object_value"); 169 /*
170 * Objects require additional resolution steps (e.g., the Node may be
171 * a field that must be read, etc.) -- we can't just grab the object
172 * out of the node.
173 *
174 * Use resolve_node_to_value() to get the associated value.
175 *
176 * NOTE: we can get away with passing in NULL for a walk state because
177 * resolved_node is guaranteed to not be a reference to either a method
178 * local or a method argument (because this interface is never called
179 * from a running method.)
180 *
181 * Even though we do not directly invoke the interpreter for object
182 * resolution, we must lock it because we could access an opregion.
183 * The opregion access code assumes that the interpreter is locked.
184 */
185 status = acpi_ex_enter_interpreter();
186 if (ACPI_FAILURE(status)) {
187 return_ACPI_STATUS(status);
188 }
439 189
440 /* 190 /* Function has a strange interface */
441 * Objects require additional resolution steps (e.g., the Node may be a
442 * field that must be read, etc.) -- we can't just grab the object out of
443 * the node.
444 */
445 191
446 /* 192 status =
447 * Use resolve_node_to_value() to get the associated value. This call always 193 acpi_ex_resolve_node_to_value(&info->resolved_node, NULL);
448 * deletes obj_desc (allocated above). 194 acpi_ex_exit_interpreter();
449 *
450 * NOTE: we can get away with passing in NULL for a walk state because
451 * obj_desc is guaranteed to not be a reference to either a method local or
452 * a method argument (because this interface can only be called from the
453 * acpi_evaluate external interface, never called from a running method.)
454 *
455 * Even though we do not directly invoke the interpreter for this, we must
456 * enter it because we could access an opregion. The opregion access code
457 * assumes that the interpreter is locked.
458 *
459 * We must release the namespace lock before entering the intepreter.
460 */
461 status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
462 if (ACPI_FAILURE(status)) {
463 return_ACPI_STATUS(status);
464 }
465 195
466 status = acpi_ex_enter_interpreter();
467 if (ACPI_SUCCESS(status)) {
468 status = acpi_ex_resolve_node_to_value(&resolved_node, NULL);
469 /* 196 /*
470 * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed 197 * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed
471 * in resolved_node. 198 * in resolved_node.
472 */ 199 */
473 acpi_ex_exit_interpreter();
474
475 if (ACPI_SUCCESS(status)) { 200 if (ACPI_SUCCESS(status)) {
476 status = AE_CTRL_RETURN_VALUE; 201 status = AE_CTRL_RETURN_VALUE;
477 info->return_object = ACPI_CAST_PTR 202 info->return_object =
478 (union acpi_operand_object, resolved_node); 203 ACPI_CAST_PTR(union acpi_operand_object,
204 info->resolved_node);
205
479 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 206 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
480 "Returning object %p [%s]\n", 207 "Returning object %p [%s]\n",
481 info->return_object, 208 info->return_object,
@@ -484,7 +211,30 @@ static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info)
484 } 211 }
485 } 212 }
486 213
487 /* Namespace is unlocked */ 214 /*
215 * Check if there is a return value that must be dealt with
216 */
217 if (status == AE_CTRL_RETURN_VALUE) {
218
219 /* If caller does not want the return value, delete it */
488 220
221 if (info->flags & ACPI_IGNORE_RETURN_VALUE) {
222 acpi_ut_remove_reference(info->return_object);
223 info->return_object = NULL;
224 }
225
226 /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
227
228 status = AE_OK;
229 }
230
231 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
232 "*** Completed evaluation of object %s ***\n",
233 info->pathname));
234
235 /*
236 * Namespace was unlocked by the handling acpi_ns* function, so we
237 * just return
238 */
489 return_ACPI_STATUS(status); 239 return_ACPI_STATUS(status);
490} 240}
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index 9f929e479fd8..aec8488c0019 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -58,6 +58,10 @@ static acpi_status
58acpi_ns_init_one_device(acpi_handle obj_handle, 58acpi_ns_init_one_device(acpi_handle obj_handle,
59 u32 nesting_level, void *context, void **return_value); 59 u32 nesting_level, void *context, void **return_value);
60 60
61static acpi_status
62acpi_ns_find_ini_methods(acpi_handle obj_handle,
63 u32 nesting_level, void *context, void **return_value);
64
61/******************************************************************************* 65/*******************************************************************************
62 * 66 *
63 * FUNCTION: acpi_ns_initialize_objects 67 * FUNCTION: acpi_ns_initialize_objects
@@ -76,7 +80,7 @@ acpi_status acpi_ns_initialize_objects(void)
76 acpi_status status; 80 acpi_status status;
77 struct acpi_init_walk_info info; 81 struct acpi_init_walk_info info;
78 82
79 ACPI_FUNCTION_TRACE("ns_initialize_objects"); 83 ACPI_FUNCTION_TRACE(ns_initialize_objects);
80 84
81 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, 85 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
82 "**** Starting initialization of namespace objects ****\n")); 86 "**** Starting initialization of namespace objects ****\n"));
@@ -93,7 +97,7 @@ acpi_status acpi_ns_initialize_objects(void)
93 ACPI_UINT32_MAX, acpi_ns_init_one_object, 97 ACPI_UINT32_MAX, acpi_ns_init_one_object,
94 &info, NULL); 98 &info, NULL);
95 if (ACPI_FAILURE(status)) { 99 if (ACPI_FAILURE(status)) {
96 ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace")); 100 ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
97 } 101 }
98 102
99 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, 103 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
@@ -133,7 +137,7 @@ acpi_status acpi_ns_initialize_devices(void)
133 acpi_status status; 137 acpi_status status;
134 struct acpi_device_walk_info info; 138 struct acpi_device_walk_info info;
135 139
136 ACPI_FUNCTION_TRACE("ns_initialize_devices"); 140 ACPI_FUNCTION_TRACE(ns_initialize_devices);
137 141
138 /* Init counters */ 142 /* Init counters */
139 143
@@ -142,30 +146,46 @@ acpi_status acpi_ns_initialize_devices(void)
142 info.num_INI = 0; 146 info.num_INI = 0;
143 147
144 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, 148 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
145 "Executing all Device _STA and_INI methods:")); 149 "Initializing Device/Processor/Thermal objects by executing _INI methods:"));
150
151 /* Tree analysis: find all subtrees that contain _INI methods */
146 152
147 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 153 status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
154 ACPI_UINT32_MAX, FALSE,
155 acpi_ns_find_ini_methods, &info, NULL);
148 if (ACPI_FAILURE(status)) { 156 if (ACPI_FAILURE(status)) {
149 return_ACPI_STATUS(status); 157 goto error_exit;
150 } 158 }
151 159
152 /* Walk namespace for all objects */ 160 /* Allocate the evaluation information block */
161
162 info.evaluate_info =
163 ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
164 if (!info.evaluate_info) {
165 status = AE_NO_MEMORY;
166 goto error_exit;
167 }
168
169 /* Walk namespace to execute all _INIs on present devices */
153 170
154 status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 171 status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
155 ACPI_UINT32_MAX, TRUE, 172 ACPI_UINT32_MAX, FALSE,
156 acpi_ns_init_one_device, &info, NULL); 173 acpi_ns_init_one_device, &info, NULL);
157 174
158 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 175 ACPI_FREE(info.evaluate_info);
159
160 if (ACPI_FAILURE(status)) { 176 if (ACPI_FAILURE(status)) {
161 ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace")); 177 goto error_exit;
162 } 178 }
163 179
164 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, 180 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
165 "\n%hd Devices found - executed %hd _STA, %hd _INI methods\n", 181 "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n",
166 info.device_count, info.num_STA, info.num_INI)); 182 info.num_INI, info.num_STA, info.device_count));
167 183
168 return_ACPI_STATUS(status); 184 return_ACPI_STATUS(status);
185
186 error_exit:
187 ACPI_EXCEPTION((AE_INFO, status, "During device initialization"));
188 return_ACPI_STATUS(status);
169} 189}
170 190
171/******************************************************************************* 191/*******************************************************************************
@@ -200,7 +220,7 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
200 (struct acpi_namespace_node *)obj_handle; 220 (struct acpi_namespace_node *)obj_handle;
201 union acpi_operand_object *obj_desc; 221 union acpi_operand_object *obj_desc;
202 222
203 ACPI_FUNCTION_NAME("ns_init_one_object"); 223 ACPI_FUNCTION_NAME(ns_init_one_object);
204 224
205 info->object_count++; 225 info->object_count++;
206 226
@@ -311,6 +331,72 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
311 331
312/******************************************************************************* 332/*******************************************************************************
313 * 333 *
334 * FUNCTION: acpi_ns_find_ini_methods
335 *
336 * PARAMETERS: acpi_walk_callback
337 *
338 * RETURN: acpi_status
339 *
340 * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
341 * device/processor/thermal objects, and marks the entire subtree
342 * with a SUBTREE_HAS_INI flag. This flag is used during the
343 * subsequent device initialization walk to avoid entire subtrees
344 * that do not contain an _INI.
345 *
346 ******************************************************************************/
347
348static acpi_status
349acpi_ns_find_ini_methods(acpi_handle obj_handle,
350 u32 nesting_level, void *context, void **return_value)
351{
352 struct acpi_device_walk_info *info =
353 ACPI_CAST_PTR(struct acpi_device_walk_info, context);
354 struct acpi_namespace_node *node;
355 struct acpi_namespace_node *parent_node;
356
357 /* Keep count of device/processor/thermal objects */
358
359 node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
360 if ((node->type == ACPI_TYPE_DEVICE) ||
361 (node->type == ACPI_TYPE_PROCESSOR) ||
362 (node->type == ACPI_TYPE_THERMAL)) {
363 info->device_count++;
364 return (AE_OK);
365 }
366
367 /* We are only looking for methods named _INI */
368
369 if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) {
370 return (AE_OK);
371 }
372
373 /*
374 * The only _INI methods that we care about are those that are
375 * present under Device, Processor, and Thermal objects.
376 */
377 parent_node = acpi_ns_get_parent_node(node);
378 switch (parent_node->type) {
379 case ACPI_TYPE_DEVICE:
380 case ACPI_TYPE_PROCESSOR:
381 case ACPI_TYPE_THERMAL:
382
383 /* Mark parent and bubble up the INI present flag to the root */
384
385 while (parent_node) {
386 parent_node->flags |= ANOBJ_SUBTREE_HAS_INI;
387 parent_node = acpi_ns_get_parent_node(parent_node);
388 }
389 break;
390
391 default:
392 break;
393 }
394
395 return (AE_OK);
396}
397
398/*******************************************************************************
399 *
314 * FUNCTION: acpi_ns_init_one_device 400 * FUNCTION: acpi_ns_init_one_device
315 * 401 *
316 * PARAMETERS: acpi_walk_callback 402 * PARAMETERS: acpi_walk_callback
@@ -327,119 +413,165 @@ static acpi_status
327acpi_ns_init_one_device(acpi_handle obj_handle, 413acpi_ns_init_one_device(acpi_handle obj_handle,
328 u32 nesting_level, void *context, void **return_value) 414 u32 nesting_level, void *context, void **return_value)
329{ 415{
330 struct acpi_device_walk_info *info = 416 struct acpi_device_walk_info *walk_info =
331 (struct acpi_device_walk_info *)context; 417 ACPI_CAST_PTR(struct acpi_device_walk_info, context);
332 struct acpi_parameter_info pinfo; 418 struct acpi_evaluate_info *info = walk_info->evaluate_info;
333 u32 flags; 419 u32 flags;
334 acpi_status status; 420 acpi_status status;
335 struct acpi_namespace_node *ini_node;
336 struct acpi_namespace_node *device_node; 421 struct acpi_namespace_node *device_node;
337 422
338 ACPI_FUNCTION_TRACE("ns_init_one_device"); 423 ACPI_FUNCTION_TRACE(ns_init_one_device);
339 424
340 device_node = acpi_ns_map_handle_to_node(obj_handle); 425 /* We are interested in Devices, Processors and thermal_zones only */
341 if (!device_node) {
342 return_ACPI_STATUS(AE_BAD_PARAMETER);
343 }
344 426
345 /* 427 device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle);
346 * We will run _STA/_INI on Devices, Processors and thermal_zones only
347 */
348 if ((device_node->type != ACPI_TYPE_DEVICE) && 428 if ((device_node->type != ACPI_TYPE_DEVICE) &&
349 (device_node->type != ACPI_TYPE_PROCESSOR) && 429 (device_node->type != ACPI_TYPE_PROCESSOR) &&
350 (device_node->type != ACPI_TYPE_THERMAL)) { 430 (device_node->type != ACPI_TYPE_THERMAL)) {
351 return_ACPI_STATUS(AE_OK); 431 return_ACPI_STATUS(AE_OK);
352 } 432 }
353 433
354 if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
355 (!(acpi_dbg_level & ACPI_LV_INFO))) {
356 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
357 }
358
359 info->device_count++;
360
361 /* 434 /*
362 * Check if the _INI method exists for this device - 435 * Because of an earlier namespace analysis, all subtrees that contain an
363 * if _INI does not exist, there is no need to run _STA 436 * _INI method are tagged.
364 * No _INI means device requires no initialization 437 *
438 * If this device subtree does not contain any _INI methods, we
439 * can exit now and stop traversing this entire subtree.
365 */ 440 */
366 status = acpi_ns_search_node(*ACPI_CAST_PTR(u32, METHOD_NAME__INI), 441 if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) {
367 device_node, ACPI_TYPE_METHOD, &ini_node); 442 return_ACPI_STATUS(AE_CTRL_DEPTH);
368 if (ACPI_FAILURE(status)) {
369 /* No _INI method found - move on to next device */
370
371 return_ACPI_STATUS(AE_OK);
372 } 443 }
373 444
374 /* 445 /*
375 * Run _STA to determine if we can run _INI on the device - 446 * Run _STA to determine if this device is present and functioning. We
376 * the device must be present before _INI can be run. 447 * must know this information for two important reasons (from ACPI spec):
377 * However, _STA is not required - assume device present if no _STA 448 *
449 * 1) We can only run _INI if the device is present.
450 * 2) We must abort the device tree walk on this subtree if the device is
451 * not present and is not functional (we will not examine the children)
452 *
453 * The _STA method is not required to be present under the device, we
454 * assume the device is present if _STA does not exist.
378 */ 455 */
379 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD, 456 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
380 device_node, 457 (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA));
381 METHOD_NAME__STA));
382
383 pinfo.node = device_node;
384 pinfo.parameters = NULL;
385 pinfo.parameter_type = ACPI_PARAM_ARGS;
386 458
387 status = acpi_ut_execute_STA(pinfo.node, &flags); 459 status = acpi_ut_execute_STA(device_node, &flags);
388 if (ACPI_FAILURE(status)) { 460 if (ACPI_FAILURE(status)) {
461
389 /* Ignore error and move on to next device */ 462 /* Ignore error and move on to next device */
390 463
391 return_ACPI_STATUS(AE_OK); 464 return_ACPI_STATUS(AE_OK);
392 } 465 }
393 466
467 /*
468 * Flags == -1 means that _STA was not found. In this case, we assume that
469 * the device is both present and functional.
470 *
471 * From the ACPI spec, description of _STA:
472 *
473 * "If a device object (including the processor object) does not have an
474 * _STA object, then OSPM assumes that all of the above bits are set (in
475 * other words, the device is present, ..., and functioning)"
476 */
394 if (flags != ACPI_UINT32_MAX) { 477 if (flags != ACPI_UINT32_MAX) {
395 info->num_STA++; 478 walk_info->num_STA++;
396 } 479 }
397 480
481 /*
482 * Examine the PRESENT and FUNCTIONING status bits
483 *
484 * Note: ACPI spec does not seem to specify behavior for the present but
485 * not functioning case, so we assume functioning if present.
486 */
398 if (!(flags & ACPI_STA_DEVICE_PRESENT)) { 487 if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
399 /* Don't look at children of a not present device */
400 488
401 return_ACPI_STATUS(AE_CTRL_DEPTH); 489 /* Device is not present, we must examine the Functioning bit */
490
491 if (flags & ACPI_STA_DEVICE_FUNCTIONING) {
492 /*
493 * Device is not present but is "functioning". In this case,
494 * we will not run _INI, but we continue to examine the children
495 * of this device.
496 *
497 * From the ACPI spec, description of _STA: (Note - no mention
498 * of whether to run _INI or not on the device in question)
499 *
500 * "_STA may return bit 0 clear (not present) with bit 3 set
501 * (device is functional). This case is used to indicate a valid
502 * device for which no device driver should be loaded (for example,
503 * a bridge device.) Children of this device may be present and
504 * valid. OSPM should continue enumeration below a device whose
505 * _STA returns this bit combination"
506 */
507 return_ACPI_STATUS(AE_OK);
508 } else {
509 /*
510 * Device is not present and is not functioning. We must abort the
511 * walk of this subtree immediately -- don't look at the children
512 * of such a device.
513 *
514 * From the ACPI spec, description of _INI:
515 *
516 * "If the _STA method indicates that the device is not present,
517 * OSPM will not run the _INI and will not examine the children
518 * of the device for _INI methods"
519 */
520 return_ACPI_STATUS(AE_CTRL_DEPTH);
521 }
402 } 522 }
403 523
404 /* 524 /*
405 * The device is present and _INI exists. Run the _INI method. 525 * The device is present or is assumed present if no _STA exists.
406 * (We already have the _INI node from above) 526 * Run the _INI if it exists (not required to exist)
527 *
528 * Note: We know there is an _INI within this subtree, but it may not be
529 * under this particular device, it may be lower in the branch.
407 */ 530 */
408 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD, 531 ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname
409 pinfo.node, 532 (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI));
410 METHOD_NAME__INI)); 533
534 info->prefix_node = device_node;
535 info->pathname = METHOD_NAME__INI;
536 info->parameters = NULL;
537 info->parameter_type = ACPI_PARAM_ARGS;
538 info->flags = ACPI_IGNORE_RETURN_VALUE;
539
540 status = acpi_ns_evaluate(info);
541 if (ACPI_SUCCESS(status)) {
542 walk_info->num_INI++;
543
544 if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
545 (!(acpi_dbg_level & ACPI_LV_INFO))) {
546 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
547 }
548 }
549#ifdef ACPI_DEBUG_OUTPUT
550 else if (status != AE_NOT_FOUND) {
411 551
412 pinfo.node = ini_node;
413 status = acpi_ns_evaluate_by_handle(&pinfo);
414 if (ACPI_FAILURE(status)) {
415 /* Ignore error and move on to next device */ 552 /* Ignore error and move on to next device */
416 553
417#ifdef ACPI_DEBUG_OUTPUT 554 char *scope_name =
418 char *scope_name = acpi_ns_get_external_pathname(ini_node); 555 acpi_ns_get_external_pathname(info->resolved_node);
419
420 ACPI_WARNING((AE_INFO, "%s._INI failed: %s",
421 scope_name, acpi_format_exception(status)));
422 556
423 ACPI_MEM_FREE(scope_name); 557 ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution",
558 scope_name));
559 ACPI_FREE(scope_name);
560 }
424#endif 561#endif
425 } else {
426 /* Delete any return object (especially if implicit_return is enabled) */
427 562
428 if (pinfo.return_object) { 563 /* Ignore errors from above */
429 acpi_ut_remove_reference(pinfo.return_object);
430 }
431 564
432 /* Count of successful INIs */ 565 status = AE_OK;
433
434 info->num_INI++;
435 }
436 566
567 /*
568 * The _INI method has been run if present; call the Global Initialization
569 * Handler for this device.
570 */
437 if (acpi_gbl_init_handler) { 571 if (acpi_gbl_init_handler) {
438 /* External initialization handler is present, call it */
439
440 status = 572 status =
441 acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI); 573 acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI);
442 } 574 }
443 575
444 return_ACPI_STATUS(AE_OK); 576 return_ACPI_STATUS(status);
445} 577}
diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c
index 4e0b0524c188..fe75d888e183 100644
--- a/drivers/acpi/namespace/nsload.c
+++ b/drivers/acpi/namespace/nsload.c
@@ -77,13 +77,14 @@ acpi_ns_load_table(struct acpi_table_desc *table_desc,
77{ 77{
78 acpi_status status; 78 acpi_status status;
79 79
80 ACPI_FUNCTION_TRACE("ns_load_table"); 80 ACPI_FUNCTION_TRACE(ns_load_table);
81 81
82 /* Check if table contains valid AML (must be DSDT, PSDT, SSDT, etc.) */ 82 /* Check if table contains valid AML (must be DSDT, PSDT, SSDT, etc.) */
83 83
84 if (! 84 if (!
85 (acpi_gbl_table_data[table_desc->type]. 85 (acpi_gbl_table_data[table_desc->type].
86 flags & ACPI_TABLE_EXECUTABLE)) { 86 flags & ACPI_TABLE_EXECUTABLE)) {
87
87 /* Just ignore this table */ 88 /* Just ignore this table */
88 89
89 return_ACPI_STATUS(AE_OK); 90 return_ACPI_STATUS(AE_OK);
@@ -168,7 +169,7 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
168 acpi_status status; 169 acpi_status status;
169 struct acpi_table_desc *table_desc; 170 struct acpi_table_desc *table_desc;
170 171
171 ACPI_FUNCTION_TRACE("ns_load_table_by_type"); 172 ACPI_FUNCTION_TRACE(ns_load_table_by_type);
172 173
173 status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); 174 status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
174 if (ACPI_FAILURE(status)) { 175 if (ACPI_FAILURE(status)) {
@@ -180,11 +181,11 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
180 * DSDT (one), SSDT/PSDT (multiple) 181 * DSDT (one), SSDT/PSDT (multiple)
181 */ 182 */
182 switch (table_type) { 183 switch (table_type) {
183 case ACPI_TABLE_DSDT: 184 case ACPI_TABLE_ID_DSDT:
184 185
185 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace load: DSDT\n")); 186 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace load: DSDT\n"));
186 187
187 table_desc = acpi_gbl_table_lists[ACPI_TABLE_DSDT].next; 188 table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_DSDT].next;
188 189
189 /* If table already loaded into namespace, just return */ 190 /* If table already loaded into namespace, just return */
190 191
@@ -200,8 +201,8 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type)
200 } 201 }
201 break; 202 break;
202 203
203 case ACPI_TABLE_SSDT: 204 case ACPI_TABLE_ID_SSDT:
204 case ACPI_TABLE_PSDT: 205 case ACPI_TABLE_ID_PSDT:
205 206
206 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 207 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
207 "Namespace load: %d SSDT or PSDTs\n", 208 "Namespace load: %d SSDT or PSDTs\n",
@@ -258,7 +259,7 @@ acpi_status acpi_ns_load_namespace(void)
258{ 259{
259 acpi_status status; 260 acpi_status status;
260 261
261 ACPI_FUNCTION_TRACE("acpi_load_name_space"); 262 ACPI_FUNCTION_TRACE(acpi_load_name_space);
262 263
263 /* There must be at least a DSDT installed */ 264 /* There must be at least a DSDT installed */
264 265
@@ -271,15 +272,15 @@ acpi_status acpi_ns_load_namespace(void)
271 * Load the namespace. The DSDT is required, 272 * Load the namespace. The DSDT is required,
272 * but the SSDT and PSDT tables are optional. 273 * but the SSDT and PSDT tables are optional.
273 */ 274 */
274 status = acpi_ns_load_table_by_type(ACPI_TABLE_DSDT); 275 status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT);
275 if (ACPI_FAILURE(status)) { 276 if (ACPI_FAILURE(status)) {
276 return_ACPI_STATUS(status); 277 return_ACPI_STATUS(status);
277 } 278 }
278 279
279 /* Ignore exceptions from these */ 280 /* Ignore exceptions from these */
280 281
281 (void)acpi_ns_load_table_by_type(ACPI_TABLE_SSDT); 282 (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT);
282 (void)acpi_ns_load_table_by_type(ACPI_TABLE_PSDT); 283 (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT);
283 284
284 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, 285 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
285 "ACPI Namespace successfully loaded at root %p\n", 286 "ACPI Namespace successfully loaded at root %p\n",
@@ -314,7 +315,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
314 acpi_handle dummy; 315 acpi_handle dummy;
315 u32 level; 316 u32 level;
316 317
317 ACPI_FUNCTION_TRACE("ns_delete_subtree"); 318 ACPI_FUNCTION_TRACE(ns_delete_subtree);
318 319
319 parent_handle = start_handle; 320 parent_handle = start_handle;
320 child_handle = NULL; 321 child_handle = NULL;
@@ -325,6 +326,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
325 * to where we started. 326 * to where we started.
326 */ 327 */
327 while (level > 0) { 328 while (level > 0) {
329
328 /* Attempt to get the next object in this scope */ 330 /* Attempt to get the next object in this scope */
329 331
330 status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle, 332 status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle,
@@ -335,6 +337,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle)
335 /* Did we get a new object? */ 337 /* Did we get a new object? */
336 338
337 if (ACPI_SUCCESS(status)) { 339 if (ACPI_SUCCESS(status)) {
340
338 /* Check if this object has any children */ 341 /* Check if this object has any children */
339 342
340 if (ACPI_SUCCESS 343 if (ACPI_SUCCESS
@@ -392,7 +395,7 @@ acpi_status acpi_ns_unload_namespace(acpi_handle handle)
392{ 395{
393 acpi_status status; 396 acpi_status status;
394 397
395 ACPI_FUNCTION_TRACE("ns_unload_name_space"); 398 ACPI_FUNCTION_TRACE(ns_unload_name_space);
396 399
397 /* Parameter validation */ 400 /* Parameter validation */
398 401
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
index 639f653b4b6b..97b8332c9746 100644
--- a/drivers/acpi/namespace/nsnames.c
+++ b/drivers/acpi/namespace/nsnames.c
@@ -48,11 +48,6 @@
48#define _COMPONENT ACPI_NAMESPACE 48#define _COMPONENT ACPI_NAMESPACE
49ACPI_MODULE_NAME("nsnames") 49ACPI_MODULE_NAME("nsnames")
50 50
51/* Local prototypes */
52static void
53acpi_ns_build_external_path(struct acpi_namespace_node *node,
54 acpi_size size, char *name_buffer);
55
56/******************************************************************************* 51/*******************************************************************************
57 * 52 *
58 * FUNCTION: acpi_ns_build_external_path 53 * FUNCTION: acpi_ns_build_external_path
@@ -67,8 +62,7 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node,
67 * DESCRIPTION: Generate a full pathaname 62 * DESCRIPTION: Generate a full pathaname
68 * 63 *
69 ******************************************************************************/ 64 ******************************************************************************/
70 65void
71static void
72acpi_ns_build_external_path(struct acpi_namespace_node *node, 66acpi_ns_build_external_path(struct acpi_namespace_node *node,
73 acpi_size size, char *name_buffer) 67 acpi_size size, char *name_buffer)
74{ 68{
@@ -138,7 +132,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
138 char *name_buffer; 132 char *name_buffer;
139 acpi_size size; 133 acpi_size size;
140 134
141 ACPI_FUNCTION_TRACE_PTR("ns_get_external_pathname", node); 135 ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node);
142 136
143 /* Calculate required buffer size based on depth below root */ 137 /* Calculate required buffer size based on depth below root */
144 138
@@ -146,7 +140,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node)
146 140
147 /* Allocate a buffer to be returned to caller */ 141 /* Allocate a buffer to be returned to caller */
148 142
149 name_buffer = ACPI_MEM_CALLOCATE(size); 143 name_buffer = ACPI_ALLOCATE_ZEROED(size);
150 if (!name_buffer) { 144 if (!name_buffer) {
151 ACPI_ERROR((AE_INFO, "Allocation failure")); 145 ACPI_ERROR((AE_INFO, "Allocation failure"));
152 return_PTR(NULL); 146 return_PTR(NULL);
@@ -219,7 +213,7 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle,
219 struct acpi_namespace_node *node; 213 struct acpi_namespace_node *node;
220 acpi_size required_size; 214 acpi_size required_size;
221 215
222 ACPI_FUNCTION_TRACE_PTR("ns_handle_to_pathname", target_handle); 216 ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);
223 217
224 node = acpi_ns_map_handle_to_node(target_handle); 218 node = acpi_ns_map_handle_to_node(target_handle);
225 if (!node) { 219 if (!node) {
diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c
index 10ae6292bca4..aabe8794b908 100644
--- a/drivers/acpi/namespace/nsobject.c
+++ b/drivers/acpi/namespace/nsobject.c
@@ -76,19 +76,21 @@ acpi_ns_attach_object(struct acpi_namespace_node *node,
76 union acpi_operand_object *last_obj_desc; 76 union acpi_operand_object *last_obj_desc;
77 acpi_object_type object_type = ACPI_TYPE_ANY; 77 acpi_object_type object_type = ACPI_TYPE_ANY;
78 78
79 ACPI_FUNCTION_TRACE("ns_attach_object"); 79 ACPI_FUNCTION_TRACE(ns_attach_object);
80 80
81 /* 81 /*
82 * Parameter validation 82 * Parameter validation
83 */ 83 */
84 if (!node) { 84 if (!node) {
85
85 /* Invalid handle */ 86 /* Invalid handle */
86 87
87 ACPI_ERROR((AE_INFO, "Null named_obj handle")); 88 ACPI_ERROR((AE_INFO, "Null NamedObj handle"));
88 return_ACPI_STATUS(AE_BAD_PARAMETER); 89 return_ACPI_STATUS(AE_BAD_PARAMETER);
89 } 90 }
90 91
91 if (!object && (ACPI_TYPE_ANY != type)) { 92 if (!object && (ACPI_TYPE_ANY != type)) {
93
92 /* Null object */ 94 /* Null object */
93 95
94 ACPI_ERROR((AE_INFO, 96 ACPI_ERROR((AE_INFO,
@@ -97,6 +99,7 @@ acpi_ns_attach_object(struct acpi_namespace_node *node,
97 } 99 }
98 100
99 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { 101 if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) {
102
100 /* Not a name handle */ 103 /* Not a name handle */
101 104
102 ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]", 105 ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]",
@@ -108,7 +111,7 @@ acpi_ns_attach_object(struct acpi_namespace_node *node,
108 111
109 if (node->object == object) { 112 if (node->object == object) {
110 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 113 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
111 "Obj %p already installed in name_obj %p\n", 114 "Obj %p already installed in NameObj %p\n",
112 object, node)); 115 object, node));
113 116
114 return_ACPI_STATUS(AE_OK); 117 return_ACPI_STATUS(AE_OK);
@@ -201,7 +204,7 @@ void acpi_ns_detach_object(struct acpi_namespace_node *node)
201{ 204{
202 union acpi_operand_object *obj_desc; 205 union acpi_operand_object *obj_desc;
203 206
204 ACPI_FUNCTION_TRACE("ns_detach_object"); 207 ACPI_FUNCTION_TRACE(ns_detach_object);
205 208
206 obj_desc = node->object; 209 obj_desc = node->object;
207 210
@@ -252,7 +255,7 @@ union acpi_operand_object *acpi_ns_get_attached_object(struct
252 acpi_namespace_node 255 acpi_namespace_node
253 *node) 256 *node)
254{ 257{
255 ACPI_FUNCTION_TRACE_PTR("ns_get_attached_object", node); 258 ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node);
256 259
257 if (!node) { 260 if (!node) {
258 ACPI_WARNING((AE_INFO, "Null Node ptr")); 261 ACPI_WARNING((AE_INFO, "Null Node ptr"));
@@ -287,7 +290,7 @@ union acpi_operand_object *acpi_ns_get_secondary_object(union
287 acpi_operand_object 290 acpi_operand_object
288 *obj_desc) 291 *obj_desc)
289{ 292{
290 ACPI_FUNCTION_TRACE_PTR("ns_get_secondary_object", obj_desc); 293 ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc);
291 294
292 if ((!obj_desc) || 295 if ((!obj_desc) ||
293 (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) || 296 (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) ||
diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c
index 232be4303653..155505a4ef69 100644
--- a/drivers/acpi/namespace/nsparse.c
+++ b/drivers/acpi/namespace/nsparse.c
@@ -62,13 +62,13 @@ ACPI_MODULE_NAME("nsparse")
62 * 62 *
63 ******************************************************************************/ 63 ******************************************************************************/
64acpi_status 64acpi_status
65acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc * table_desc) 65acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc *table_desc)
66{ 66{
67 union acpi_parse_object *parse_root; 67 union acpi_parse_object *parse_root;
68 acpi_status status; 68 acpi_status status;
69 struct acpi_walk_state *walk_state; 69 struct acpi_walk_state *walk_state;
70 70
71 ACPI_FUNCTION_TRACE("ns_one_complete_parse"); 71 ACPI_FUNCTION_TRACE(ns_one_complete_parse);
72 72
73 /* Create and init a Root Node */ 73 /* Create and init a Root Node */
74 74
@@ -124,7 +124,7 @@ acpi_ns_parse_table(struct acpi_table_desc *table_desc,
124{ 124{
125 acpi_status status; 125 acpi_status status;
126 126
127 ACPI_FUNCTION_TRACE("ns_parse_table"); 127 ACPI_FUNCTION_TRACE(ns_parse_table);
128 128
129 /* 129 /*
130 * AML Parse, pass 1 130 * AML Parse, pass 1
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c
index d64b78952f24..500e2bbcfaf7 100644
--- a/drivers/acpi/namespace/nssearch.c
+++ b/drivers/acpi/namespace/nssearch.c
@@ -56,16 +56,16 @@ acpi_ns_search_parent_tree(u32 target_name,
56 56
57/******************************************************************************* 57/*******************************************************************************
58 * 58 *
59 * FUNCTION: acpi_ns_search_node 59 * FUNCTION: acpi_ns_search_one_scope
60 * 60 *
61 * PARAMETERS: target_name - Ascii ACPI name to search for 61 * PARAMETERS: target_name - Ascii ACPI name to search for
62 * Node - Starting node where search will begin 62 * parent_node - Starting node where search will begin
63 * Type - Object type to match 63 * Type - Object type to match
64 * return_node - Where the matched Named obj is returned 64 * return_node - Where the matched Named obj is returned
65 * 65 *
66 * RETURN: Status 66 * RETURN: Status
67 * 67 *
68 * DESCRIPTION: Search a single level of the namespace. Performs a 68 * DESCRIPTION: Search a single level of the namespace. Performs a
69 * simple search of the specified level, and does not add 69 * simple search of the specified level, and does not add
70 * entries or search parents. 70 * entries or search parents.
71 * 71 *
@@ -75,35 +75,40 @@ acpi_ns_search_parent_tree(u32 target_name,
75 * 75 *
76 * All namespace searching is linear in this implementation, but 76 * All namespace searching is linear in this implementation, but
77 * could be easily modified to support any improved search 77 * could be easily modified to support any improved search
78 * algorithm. However, the linear search was chosen for simplicity 78 * algorithm. However, the linear search was chosen for simplicity
79 * and because the trees are small and the other interpreter 79 * and because the trees are small and the other interpreter
80 * execution overhead is relatively high. 80 * execution overhead is relatively high.
81 * 81 *
82 * Note: CPU execution analysis has shown that the AML interpreter spends
83 * a very small percentage of its time searching the namespace. Therefore,
84 * the linear search seems to be sufficient, as there would seem to be
85 * little value in improving the search.
86 *
82 ******************************************************************************/ 87 ******************************************************************************/
83 88
84acpi_status 89acpi_status
85acpi_ns_search_node(u32 target_name, 90acpi_ns_search_one_scope(u32 target_name,
86 struct acpi_namespace_node *node, 91 struct acpi_namespace_node *parent_node,
87 acpi_object_type type, 92 acpi_object_type type,
88 struct acpi_namespace_node **return_node) 93 struct acpi_namespace_node **return_node)
89{ 94{
90 struct acpi_namespace_node *next_node; 95 struct acpi_namespace_node *node;
91 96
92 ACPI_FUNCTION_TRACE("ns_search_node"); 97 ACPI_FUNCTION_TRACE(ns_search_one_scope);
93 98
94#ifdef ACPI_DEBUG_OUTPUT 99#ifdef ACPI_DEBUG_OUTPUT
95 if (ACPI_LV_NAMES & acpi_dbg_level) { 100 if (ACPI_LV_NAMES & acpi_dbg_level) {
96 char *scope_name; 101 char *scope_name;
97 102
98 scope_name = acpi_ns_get_external_pathname(node); 103 scope_name = acpi_ns_get_external_pathname(parent_node);
99 if (scope_name) { 104 if (scope_name) {
100 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 105 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
101 "Searching %s (%p) For [%4.4s] (%s)\n", 106 "Searching %s (%p) For [%4.4s] (%s)\n",
102 scope_name, node, ACPI_CAST_PTR(char, 107 scope_name, parent_node,
103 &target_name), 108 ACPI_CAST_PTR(char, &target_name),
104 acpi_ut_get_type_name(type))); 109 acpi_ut_get_type_name(type)));
105 110
106 ACPI_MEM_FREE(scope_name); 111 ACPI_FREE(scope_name);
107 } 112 }
108 } 113 }
109#endif 114#endif
@@ -112,32 +117,33 @@ acpi_ns_search_node(u32 target_name,
112 * Search for name at this namespace level, which is to say that we 117 * Search for name at this namespace level, which is to say that we
113 * must search for the name among the children of this object 118 * must search for the name among the children of this object
114 */ 119 */
115 next_node = node->child; 120 node = parent_node->child;
116 while (next_node) { 121 while (node) {
122
117 /* Check for match against the name */ 123 /* Check for match against the name */
118 124
119 if (next_node->name.integer == target_name) { 125 if (node->name.integer == target_name) {
126
120 /* Resolve a control method alias if any */ 127 /* Resolve a control method alias if any */
121 128
122 if (acpi_ns_get_type(next_node) == 129 if (acpi_ns_get_type(node) ==
123 ACPI_TYPE_LOCAL_METHOD_ALIAS) { 130 ACPI_TYPE_LOCAL_METHOD_ALIAS) {
124 next_node = 131 node =
125 ACPI_CAST_PTR(struct acpi_namespace_node, 132 ACPI_CAST_PTR(struct acpi_namespace_node,
126 next_node->object); 133 node->object);
127 } 134 }
128 135
129 /* 136 /* Found matching entry */
130 * Found matching entry. 137
131 */
132 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 138 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
133 "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n", 139 "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n",
134 ACPI_CAST_PTR(char, &target_name), 140 ACPI_CAST_PTR(char, &target_name),
135 acpi_ut_get_type_name(next_node-> 141 acpi_ut_get_type_name(node->type),
136 type), 142 node,
137 next_node, 143 acpi_ut_get_node_name(parent_node),
138 acpi_ut_get_node_name(node), node)); 144 parent_node));
139 145
140 *return_node = next_node; 146 *return_node = node;
141 return_ACPI_STATUS(AE_OK); 147 return_ACPI_STATUS(AE_OK);
142 } 148 }
143 149
@@ -145,7 +151,8 @@ acpi_ns_search_node(u32 target_name,
145 * The last entry in the list points back to the parent, 151 * The last entry in the list points back to the parent,
146 * so a flag is used to indicate the end-of-list 152 * so a flag is used to indicate the end-of-list
147 */ 153 */
148 if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { 154 if (node->flags & ANOBJ_END_OF_PEER_LIST) {
155
149 /* Searched entire list, we are done */ 156 /* Searched entire list, we are done */
150 157
151 break; 158 break;
@@ -153,7 +160,7 @@ acpi_ns_search_node(u32 target_name,
153 160
154 /* Didn't match name, move on to the next peer object */ 161 /* Didn't match name, move on to the next peer object */
155 162
156 next_node = next_node->peer; 163 node = node->peer;
157 } 164 }
158 165
159 /* Searched entire namespace level, not found */ 166 /* Searched entire namespace level, not found */
@@ -162,7 +169,8 @@ acpi_ns_search_node(u32 target_name,
162 "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n", 169 "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n",
163 ACPI_CAST_PTR(char, &target_name), 170 ACPI_CAST_PTR(char, &target_name),
164 acpi_ut_get_type_name(type), 171 acpi_ut_get_type_name(type),
165 acpi_ut_get_node_name(node), node, node->child)); 172 acpi_ut_get_node_name(parent_node), parent_node,
173 parent_node->child));
166 174
167 return_ACPI_STATUS(AE_NOT_FOUND); 175 return_ACPI_STATUS(AE_NOT_FOUND);
168} 176}
@@ -179,14 +187,14 @@ acpi_ns_search_node(u32 target_name,
179 * RETURN: Status 187 * RETURN: Status
180 * 188 *
181 * DESCRIPTION: Called when a name has not been found in the current namespace 189 * DESCRIPTION: Called when a name has not been found in the current namespace
182 * level. Before adding it or giving up, ACPI scope rules require 190 * level. Before adding it or giving up, ACPI scope rules require
183 * searching enclosing scopes in cases identified by acpi_ns_local(). 191 * searching enclosing scopes in cases identified by acpi_ns_local().
184 * 192 *
185 * "A name is located by finding the matching name in the current 193 * "A name is located by finding the matching name in the current
186 * name space, and then in the parent name space. If the parent 194 * name space, and then in the parent name space. If the parent
187 * name space does not contain the name, the search continues 195 * name space does not contain the name, the search continues
188 * recursively until either the name is found or the name space 196 * recursively until either the name is found or the name space
189 * does not have a parent (the root of the name space). This 197 * does not have a parent (the root of the name space). This
190 * indicates that the name is not found" (From ACPI Specification, 198 * indicates that the name is not found" (From ACPI Specification,
191 * section 5.3) 199 * section 5.3)
192 * 200 *
@@ -201,7 +209,7 @@ acpi_ns_search_parent_tree(u32 target_name,
201 acpi_status status; 209 acpi_status status;
202 struct acpi_namespace_node *parent_node; 210 struct acpi_namespace_node *parent_node;
203 211
204 ACPI_FUNCTION_TRACE("ns_search_parent_tree"); 212 ACPI_FUNCTION_TRACE(ns_search_parent_tree);
205 213
206 parent_node = acpi_ns_get_parent_node(node); 214 parent_node = acpi_ns_get_parent_node(node);
207 215
@@ -235,20 +243,19 @@ acpi_ns_search_parent_tree(u32 target_name,
235 */ 243 */
236 while (parent_node) { 244 while (parent_node) {
237 /* 245 /*
238 * Search parent scope. Use TYPE_ANY because we don't care about the 246 * Search parent scope. Use TYPE_ANY because we don't care about the
239 * object type at this point, we only care about the existence of 247 * object type at this point, we only care about the existence of
240 * the actual name we are searching for. Typechecking comes later. 248 * the actual name we are searching for. Typechecking comes later.
241 */ 249 */
242 status = acpi_ns_search_node(target_name, parent_node, 250 status =
251 acpi_ns_search_one_scope(target_name, parent_node,
243 ACPI_TYPE_ANY, return_node); 252 ACPI_TYPE_ANY, return_node);
244 if (ACPI_SUCCESS(status)) { 253 if (ACPI_SUCCESS(status)) {
245 return_ACPI_STATUS(status); 254 return_ACPI_STATUS(status);
246 } 255 }
247 256
248 /* 257 /* Not found here, go up another level (until we reach the root) */
249 * Not found here, go up another level 258
250 * (until we reach the root)
251 */
252 parent_node = acpi_ns_get_parent_node(parent_node); 259 parent_node = acpi_ns_get_parent_node(parent_node);
253 } 260 }
254 261
@@ -273,7 +280,7 @@ acpi_ns_search_parent_tree(u32 target_name,
273 * RETURN: Status 280 * RETURN: Status
274 * 281 *
275 * DESCRIPTION: Search for a name segment in a single namespace level, 282 * DESCRIPTION: Search for a name segment in a single namespace level,
276 * optionally adding it if it is not found. If the passed 283 * optionally adding it if it is not found. If the passed
277 * Type is not Any and the type previously stored in the 284 * Type is not Any and the type previously stored in the
278 * entry was Any (i.e. unknown), update the stored type. 285 * entry was Any (i.e. unknown), update the stored type.
279 * 286 *
@@ -293,29 +300,46 @@ acpi_ns_search_and_enter(u32 target_name,
293 acpi_status status; 300 acpi_status status;
294 struct acpi_namespace_node *new_node; 301 struct acpi_namespace_node *new_node;
295 302
296 ACPI_FUNCTION_TRACE("ns_search_and_enter"); 303 ACPI_FUNCTION_TRACE(ns_search_and_enter);
297 304
298 /* Parameter validation */ 305 /* Parameter validation */
299 306
300 if (!node || !target_name || !return_node) { 307 if (!node || !target_name || !return_node) {
301 ACPI_ERROR((AE_INFO, 308 ACPI_ERROR((AE_INFO,
302 "Null param: Node %p Name %X return_node %p", 309 "Null parameter: Node %p Name %X ReturnNode %p",
303 node, target_name, return_node)); 310 node, target_name, return_node));
304 return_ACPI_STATUS(AE_BAD_PARAMETER); 311 return_ACPI_STATUS(AE_BAD_PARAMETER);
305 } 312 }
306 313
307 /* Name must consist of printable characters */ 314 /*
308 315 * Name must consist of valid ACPI characters. We will repair the name if
316 * necessary because we don't want to abort because of this, but we want
317 * all namespace names to be printable. A warning message is appropriate.
318 *
319 * This issue came up because there are in fact machines that exhibit
320 * this problem, and we want to be able to enable ACPI support for them,
321 * even though there are a few bad names.
322 */
309 if (!acpi_ut_valid_acpi_name(target_name)) { 323 if (!acpi_ut_valid_acpi_name(target_name)) {
310 ACPI_ERROR((AE_INFO, "Bad character in ACPI Name: %X", 324 target_name = acpi_ut_repair_name(target_name);
311 target_name)); 325
312 return_ACPI_STATUS(AE_BAD_CHARACTER); 326 /* Report warning only if in strict mode or debug mode */
327
328 if (!acpi_gbl_enable_interpreter_slack) {
329 ACPI_WARNING((AE_INFO,
330 "Found bad character(s) in name, repaired: [%4.4s]\n",
331 ACPI_CAST_PTR(char, &target_name)));
332 } else {
333 ACPI_DEBUG_PRINT((ACPI_DB_WARN,
334 "Found bad character(s) in name, repaired: [%4.4s]\n",
335 ACPI_CAST_PTR(char, &target_name)));
336 }
313 } 337 }
314 338
315 /* Try to find the name in the namespace level specified by the caller */ 339 /* Try to find the name in the namespace level specified by the caller */
316 340
317 *return_node = ACPI_ENTRY_NOT_FOUND; 341 *return_node = ACPI_ENTRY_NOT_FOUND;
318 status = acpi_ns_search_node(target_name, node, type, return_node); 342 status = acpi_ns_search_one_scope(target_name, node, type, return_node);
319 if (status != AE_NOT_FOUND) { 343 if (status != AE_NOT_FOUND) {
320 /* 344 /*
321 * If we found it AND the request specifies that a find is an error, 345 * If we found it AND the request specifies that a find is an error,
@@ -325,18 +349,16 @@ acpi_ns_search_and_enter(u32 target_name,
325 status = AE_ALREADY_EXISTS; 349 status = AE_ALREADY_EXISTS;
326 } 350 }
327 351
328 /* 352 /* Either found it or there was an error: finished either way */
329 * Either found it or there was an error 353
330 * -- finished either way
331 */
332 return_ACPI_STATUS(status); 354 return_ACPI_STATUS(status);
333 } 355 }
334 356
335 /* 357 /*
336 * The name was not found. If we are NOT performing the first pass 358 * The name was not found. If we are NOT performing the first pass
337 * (name entry) of loading the namespace, search the parent tree (all the 359 * (name entry) of loading the namespace, search the parent tree (all the
338 * way to the root if necessary.) We don't want to perform the parent 360 * way to the root if necessary.) We don't want to perform the parent
339 * search when the namespace is actually being loaded. We want to perform 361 * search when the namespace is actually being loaded. We want to perform
340 * the search when namespace references are being resolved (load pass 2) 362 * the search when namespace references are being resolved (load pass 2)
341 * and during the execution phase. 363 * and during the execution phase.
342 */ 364 */
@@ -354,9 +376,8 @@ acpi_ns_search_and_enter(u32 target_name,
354 } 376 }
355 } 377 }
356 378
357 /* 379 /* In execute mode, just search, never add names. Exit now */
358 * In execute mode, just search, never add names. Exit now. 380
359 */
360 if (interpreter_mode == ACPI_IMODE_EXECUTE) { 381 if (interpreter_mode == ACPI_IMODE_EXECUTE) {
361 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, 382 ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
362 "%4.4s Not found in %p [Not adding]\n", 383 "%4.4s Not found in %p [Not adding]\n",
@@ -371,11 +392,18 @@ acpi_ns_search_and_enter(u32 target_name,
371 if (!new_node) { 392 if (!new_node) {
372 return_ACPI_STATUS(AE_NO_MEMORY); 393 return_ACPI_STATUS(AE_NO_MEMORY);
373 } 394 }
395#ifdef ACPI_ASL_COMPILER
396 /*
397 * Node is an object defined by an External() statement
398 */
399 if (flags & ACPI_NS_EXTERNAL) {
400 new_node->flags |= ANOBJ_IS_EXTERNAL;
401 }
402#endif
374 403
375 /* Install the new object into the parent's list of children */ 404 /* Install the new object into the parent's list of children */
376 405
377 acpi_ns_install_node(walk_state, node, new_node, type); 406 acpi_ns_install_node(walk_state, node, new_node, type);
378 *return_node = new_node; 407 *return_node = new_node;
379
380 return_ACPI_STATUS(AE_OK); 408 return_ACPI_STATUS(AE_OK);
381} 409}
diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c
index 3e7cad549a38..aa4e799d9a8c 100644
--- a/drivers/acpi/namespace/nsutils.c
+++ b/drivers/acpi/namespace/nsutils.c
@@ -78,15 +78,17 @@ acpi_ns_report_error(char *module_name,
78 char *internal_name, acpi_status lookup_status) 78 char *internal_name, acpi_status lookup_status)
79{ 79{
80 acpi_status status; 80 acpi_status status;
81 u32 bad_name;
81 char *name = NULL; 82 char *name = NULL;
82 83
83 acpi_ut_report_error(module_name, line_number); 84 acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
84 85
85 if (lookup_status == AE_BAD_CHARACTER) { 86 if (lookup_status == AE_BAD_CHARACTER) {
87
86 /* There is a non-ascii character in the name */ 88 /* There is a non-ascii character in the name */
87 89
88 acpi_os_printf("[0x%4.4X] (NON-ASCII)", 90 ACPI_MOVE_32_TO_32(&bad_name, internal_name);
89 *(ACPI_CAST_PTR(u32, internal_name))); 91 acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name);
90 } else { 92 } else {
91 /* Convert path to external format */ 93 /* Convert path to external format */
92 94
@@ -102,7 +104,7 @@ acpi_ns_report_error(char *module_name,
102 } 104 }
103 105
104 if (name) { 106 if (name) {
105 ACPI_MEM_FREE(name); 107 ACPI_FREE(name);
106 } 108 }
107 } 109 }
108 110
@@ -137,11 +139,12 @@ acpi_ns_report_method_error(char *module_name,
137 acpi_status status; 139 acpi_status status;
138 struct acpi_namespace_node *node = prefix_node; 140 struct acpi_namespace_node *node = prefix_node;
139 141
140 acpi_ut_report_error(module_name, line_number); 142 acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number);
141 143
142 if (path) { 144 if (path) {
143 status = acpi_ns_get_node_by_path(path, prefix_node, 145 status =
144 ACPI_NS_NO_UPSEARCH, &node); 146 acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH,
147 &node);
145 if (ACPI_FAILURE(status)) { 148 if (ACPI_FAILURE(status)) {
146 acpi_os_printf("[Could not get node by pathname]"); 149 acpi_os_printf("[Could not get node by pathname]");
147 } 150 }
@@ -185,7 +188,7 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node, char *message)
185 } 188 }
186 189
187 acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node); 190 acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node);
188 ACPI_MEM_FREE(buffer.pointer); 191 ACPI_FREE(buffer.pointer);
189 } 192 }
190} 193}
191 194
@@ -239,7 +242,7 @@ static u8 acpi_ns_valid_path_separator(char sep)
239 242
240acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node) 243acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
241{ 244{
242 ACPI_FUNCTION_TRACE("ns_get_type"); 245 ACPI_FUNCTION_TRACE(ns_get_type);
243 246
244 if (!node) { 247 if (!node) {
245 ACPI_WARNING((AE_INFO, "Null Node parameter")); 248 ACPI_WARNING((AE_INFO, "Null Node parameter"));
@@ -264,9 +267,10 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node)
264 267
265u32 acpi_ns_local(acpi_object_type type) 268u32 acpi_ns_local(acpi_object_type type)
266{ 269{
267 ACPI_FUNCTION_TRACE("ns_local"); 270 ACPI_FUNCTION_TRACE(ns_local);
268 271
269 if (!acpi_ut_valid_object_type(type)) { 272 if (!acpi_ut_valid_object_type(type)) {
273
270 /* Type code out of range */ 274 /* Type code out of range */
271 275
272 ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); 276 ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
@@ -363,7 +367,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
363 char *result = NULL; 367 char *result = NULL;
364 acpi_native_uint i; 368 acpi_native_uint i;
365 369
366 ACPI_FUNCTION_TRACE("ns_build_internal_name"); 370 ACPI_FUNCTION_TRACE(ns_build_internal_name);
367 371
368 /* Setup the correct prefixes, counts, and pointers */ 372 /* Setup the correct prefixes, counts, and pointers */
369 373
@@ -411,6 +415,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
411 for (i = 0; i < ACPI_NAME_SIZE; i++) { 415 for (i = 0; i < ACPI_NAME_SIZE; i++) {
412 if (acpi_ns_valid_path_separator(*external_name) || 416 if (acpi_ns_valid_path_separator(*external_name) ||
413 (*external_name == 0)) { 417 (*external_name == 0)) {
418
414 /* Pad the segment with underscore(s) if segment is short */ 419 /* Pad the segment with underscore(s) if segment is short */
415 420
416 result[i] = '_'; 421 result[i] = '_';
@@ -473,7 +478,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
473 struct acpi_namestring_info info; 478 struct acpi_namestring_info info;
474 acpi_status status; 479 acpi_status status;
475 480
476 ACPI_FUNCTION_TRACE("ns_internalize_name"); 481 ACPI_FUNCTION_TRACE(ns_internalize_name);
477 482
478 if ((!external_name) || (*external_name == 0) || (!converted_name)) { 483 if ((!external_name) || (*external_name == 0) || (!converted_name)) {
479 return_ACPI_STATUS(AE_BAD_PARAMETER); 484 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -486,7 +491,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
486 491
487 /* We need a segment to store the internal name */ 492 /* We need a segment to store the internal name */
488 493
489 internal_name = ACPI_MEM_CALLOCATE(info.length); 494 internal_name = ACPI_ALLOCATE_ZEROED(info.length);
490 if (!internal_name) { 495 if (!internal_name) {
491 return_ACPI_STATUS(AE_NO_MEMORY); 496 return_ACPI_STATUS(AE_NO_MEMORY);
492 } 497 }
@@ -496,7 +501,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name)
496 info.internal_name = internal_name; 501 info.internal_name = internal_name;
497 status = acpi_ns_build_internal_name(&info); 502 status = acpi_ns_build_internal_name(&info);
498 if (ACPI_FAILURE(status)) { 503 if (ACPI_FAILURE(status)) {
499 ACPI_MEM_FREE(internal_name); 504 ACPI_FREE(internal_name);
500 return_ACPI_STATUS(status); 505 return_ACPI_STATUS(status);
501 } 506 }
502 507
@@ -533,7 +538,7 @@ acpi_ns_externalize_name(u32 internal_name_length,
533 acpi_native_uint i = 0; 538 acpi_native_uint i = 0;
534 acpi_native_uint j = 0; 539 acpi_native_uint j = 0;
535 540
536 ACPI_FUNCTION_TRACE("ns_externalize_name"); 541 ACPI_FUNCTION_TRACE(ns_externalize_name);
537 542
538 if (!internal_name_length || !internal_name || !converted_name) { 543 if (!internal_name_length || !internal_name || !converted_name) {
539 return_ACPI_STATUS(AE_BAD_PARAMETER); 544 return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -628,7 +633,7 @@ acpi_ns_externalize_name(u32 internal_name_length,
628 /* 633 /*
629 * Build converted_name 634 * Build converted_name
630 */ 635 */
631 *converted_name = ACPI_MEM_CALLOCATE(required_length); 636 *converted_name = ACPI_ALLOCATE_ZEROED(required_length);
632 if (!(*converted_name)) { 637 if (!(*converted_name)) {
633 return_ACPI_STATUS(AE_NO_MEMORY); 638 return_ACPI_STATUS(AE_NO_MEMORY);
634 } 639 }
@@ -681,13 +686,9 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
681 ACPI_FUNCTION_ENTRY(); 686 ACPI_FUNCTION_ENTRY();
682 687
683 /* 688 /*
684 * Simple implementation. 689 * Simple implementation
685 */ 690 */
686 if (!handle) { 691 if ((!handle) || (handle == ACPI_ROOT_OBJECT)) {
687 return (NULL);
688 }
689
690 if (handle == ACPI_ROOT_OBJECT) {
691 return (acpi_gbl_root_node); 692 return (acpi_gbl_root_node);
692 } 693 }
693 694
@@ -697,7 +698,7 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
697 return (NULL); 698 return (NULL);
698 } 699 }
699 700
700 return ((struct acpi_namespace_node *)handle); 701 return (ACPI_CAST_PTR(struct acpi_namespace_node, handle));
701} 702}
702 703
703/******************************************************************************* 704/*******************************************************************************
@@ -752,7 +753,7 @@ void acpi_ns_terminate(void)
752{ 753{
753 union acpi_operand_object *obj_desc; 754 union acpi_operand_object *obj_desc;
754 755
755 ACPI_FUNCTION_TRACE("ns_terminate"); 756 ACPI_FUNCTION_TRACE(ns_terminate);
756 757
757 /* 758 /*
758 * 1) Free the entire namespace -- all nodes and objects 759 * 1) Free the entire namespace -- all nodes and objects
@@ -792,9 +793,10 @@ void acpi_ns_terminate(void)
792 793
793u32 acpi_ns_opens_scope(acpi_object_type type) 794u32 acpi_ns_opens_scope(acpi_object_type type)
794{ 795{
795 ACPI_FUNCTION_TRACE_STR("ns_opens_scope", acpi_ut_get_type_name(type)); 796 ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type));
796 797
797 if (!acpi_ut_valid_object_type(type)) { 798 if (!acpi_ut_valid_object_type(type)) {
799
798 /* type code out of range */ 800 /* type code out of range */
799 801
800 ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); 802 ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type));
@@ -806,12 +808,12 @@ u32 acpi_ns_opens_scope(acpi_object_type type)
806 808
807/******************************************************************************* 809/*******************************************************************************
808 * 810 *
809 * FUNCTION: acpi_ns_get_node_by_path 811 * FUNCTION: acpi_ns_get_node
810 * 812 *
811 * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The 813 * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The
812 * \ (backslash) and ^ (carat) prefixes, and the 814 * \ (backslash) and ^ (carat) prefixes, and the
813 * . (period) to separate segments are supported. 815 * . (period) to separate segments are supported.
814 * start_node - Root of subtree to be searched, or NS_ALL for the 816 * prefix_node - Root of subtree to be searched, or NS_ALL for the
815 * root of the name space. If Name is fully 817 * root of the name space. If Name is fully
816 * qualified (first s8 is '\'), the passed value 818 * qualified (first s8 is '\'), the passed value
817 * of Scope will not be accessed. 819 * of Scope will not be accessed.
@@ -827,23 +829,29 @@ u32 acpi_ns_opens_scope(acpi_object_type type)
827 ******************************************************************************/ 829 ******************************************************************************/
828 830
829acpi_status 831acpi_status
830acpi_ns_get_node_by_path(char *pathname, 832acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
831 struct acpi_namespace_node *start_node, 833 char *pathname,
832 u32 flags, struct acpi_namespace_node **return_node) 834 u32 flags, struct acpi_namespace_node **return_node)
833{ 835{
834 union acpi_generic_state scope_info; 836 union acpi_generic_state scope_info;
835 acpi_status status; 837 acpi_status status;
836 char *internal_path = NULL; 838 char *internal_path;
837
838 ACPI_FUNCTION_TRACE_PTR("ns_get_node_by_path", pathname);
839 839
840 if (pathname) { 840 ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname);
841 /* Convert path to internal representation */
842 841
843 status = acpi_ns_internalize_name(pathname, &internal_path); 842 if (!pathname) {
844 if (ACPI_FAILURE(status)) { 843 *return_node = prefix_node;
845 return_ACPI_STATUS(status); 844 if (!prefix_node) {
845 *return_node = acpi_gbl_root_node;
846 } 846 }
847 return_ACPI_STATUS(AE_OK);
848 }
849
850 /* Convert path to internal representation */
851
852 status = acpi_ns_internalize_name(pathname, &internal_path);
853 if (ACPI_FAILURE(status)) {
854 return_ACPI_STATUS(status);
847 } 855 }
848 856
849 /* Must lock namespace during lookup */ 857 /* Must lock namespace during lookup */
@@ -855,26 +863,23 @@ acpi_ns_get_node_by_path(char *pathname,
855 863
856 /* Setup lookup scope (search starting point) */ 864 /* Setup lookup scope (search starting point) */
857 865
858 scope_info.scope.node = start_node; 866 scope_info.scope.node = prefix_node;
859 867
860 /* Lookup the name in the namespace */ 868 /* Lookup the name in the namespace */
861 869
862 status = acpi_ns_lookup(&scope_info, internal_path, 870 status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY,
863 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, 871 ACPI_IMODE_EXECUTE,
864 (flags | ACPI_NS_DONT_OPEN_SCOPE), 872 (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL,
865 NULL, return_node); 873 return_node);
866 if (ACPI_FAILURE(status)) { 874 if (ACPI_FAILURE(status)) {
867 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n", 875 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n",
868 internal_path, 876 pathname, acpi_format_exception(status)));
869 acpi_format_exception(status)));
870 } 877 }
871 878
872 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 879 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
873 880
874 cleanup: 881 cleanup:
875 if (internal_path) { 882 ACPI_FREE(internal_path);
876 ACPI_MEM_FREE(internal_path);
877 }
878 return_ACPI_STATUS(status); 883 return_ACPI_STATUS(status);
879} 884}
880 885
@@ -960,9 +965,10 @@ acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node)
960{ 965{
961 struct acpi_namespace_node *parent_node; 966 struct acpi_namespace_node *parent_node;
962 967
963 ACPI_FUNCTION_TRACE("ns_find_parent_name"); 968 ACPI_FUNCTION_TRACE(ns_find_parent_name);
964 969
965 if (child_node) { 970 if (child_node) {
971
966 /* Valid entry. Get the parent Node */ 972 /* Valid entry. Get the parent Node */
967 973
968 parent_node = acpi_ns_get_parent_node(child_node); 974 parent_node = acpi_ns_get_parent_node(child_node);
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
index fcab1e784b81..c8f6bef16ed0 100644
--- a/drivers/acpi/namespace/nswalk.c
+++ b/drivers/acpi/namespace/nswalk.c
@@ -76,6 +76,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
76 ACPI_FUNCTION_ENTRY(); 76 ACPI_FUNCTION_ENTRY();
77 77
78 if (!child_node) { 78 if (!child_node) {
79
79 /* It's really the parent's _scope_ that we want */ 80 /* It's really the parent's _scope_ that we want */
80 81
81 if (parent_node->child) { 82 if (parent_node->child) {
@@ -92,6 +93,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
92 /* If any type is OK, we are done */ 93 /* If any type is OK, we are done */
93 94
94 if (type == ACPI_TYPE_ANY) { 95 if (type == ACPI_TYPE_ANY) {
96
95 /* next_node is NULL if we are at the end-of-list */ 97 /* next_node is NULL if we are at the end-of-list */
96 98
97 return (next_node); 99 return (next_node);
@@ -100,6 +102,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
100 /* Must search for the node -- but within this scope only */ 102 /* Must search for the node -- but within this scope only */
101 103
102 while (next_node) { 104 while (next_node) {
105
103 /* If type matches, we are done */ 106 /* If type matches, we are done */
104 107
105 if (next_node->type == type) { 108 if (next_node->type == type) {
@@ -161,7 +164,7 @@ acpi_ns_walk_namespace(acpi_object_type type,
161 acpi_object_type child_type; 164 acpi_object_type child_type;
162 u32 level; 165 u32 level;
163 166
164 ACPI_FUNCTION_TRACE("ns_walk_namespace"); 167 ACPI_FUNCTION_TRACE(ns_walk_namespace);
165 168
166 /* Special case for the namespace Root Node */ 169 /* Special case for the namespace Root Node */
167 170
@@ -182,6 +185,7 @@ acpi_ns_walk_namespace(acpi_object_type type,
182 * bubbled up to (and passed) the original parent handle (start_entry) 185 * bubbled up to (and passed) the original parent handle (start_entry)
183 */ 186 */
184 while (level > 0) { 187 while (level > 0) {
188
185 /* Get the next node in this scope. Null if not found */ 189 /* Get the next node in this scope. Null if not found */
186 190
187 status = AE_OK; 191 status = AE_OK;
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index a95f636dc35d..6d9bd45af30a 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -42,8 +42,6 @@
42 * POSSIBILITY OF SUCH DAMAGES. 42 * POSSIBILITY OF SUCH DAMAGES.
43 */ 43 */
44 44
45#include <linux/module.h>
46
47#include <acpi/acpi.h> 45#include <acpi/acpi.h>
48#include <acpi/acnamesp.h> 46#include <acpi/acnamesp.h>
49#include <acpi/acinterp.h> 47#include <acpi/acinterp.h>
@@ -51,6 +49,7 @@
51#define _COMPONENT ACPI_NAMESPACE 49#define _COMPONENT ACPI_NAMESPACE
52ACPI_MODULE_NAME("nsxfeval") 50ACPI_MODULE_NAME("nsxfeval")
53 51
52#ifdef ACPI_FUTURE_USAGE
54/******************************************************************************* 53/*******************************************************************************
55 * 54 *
56 * FUNCTION: acpi_evaluate_object_typed 55 * FUNCTION: acpi_evaluate_object_typed
@@ -71,18 +70,17 @@ ACPI_MODULE_NAME("nsxfeval")
71 * be valid (non-null) 70 * be valid (non-null)
72 * 71 *
73 ******************************************************************************/ 72 ******************************************************************************/
74#ifdef ACPI_FUTURE_USAGE
75acpi_status 73acpi_status
76acpi_evaluate_object_typed(acpi_handle handle, 74acpi_evaluate_object_typed(acpi_handle handle,
77 acpi_string pathname, 75 acpi_string pathname,
78 struct acpi_object_list *external_params, 76 struct acpi_object_list * external_params,
79 struct acpi_buffer *return_buffer, 77 struct acpi_buffer * return_buffer,
80 acpi_object_type return_type) 78 acpi_object_type return_type)
81{ 79{
82 acpi_status status; 80 acpi_status status;
83 u8 must_free = FALSE; 81 u8 must_free = FALSE;
84 82
85 ACPI_FUNCTION_TRACE("acpi_evaluate_object_typed"); 83 ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed);
86 84
87 /* Return buffer must be valid */ 85 /* Return buffer must be valid */
88 86
@@ -110,6 +108,7 @@ acpi_evaluate_object_typed(acpi_handle handle,
110 } 108 }
111 109
112 if (return_buffer->length == 0) { 110 if (return_buffer->length == 0) {
111
113 /* Error because caller specifically asked for a return value */ 112 /* Error because caller specifically asked for a return value */
114 113
115 ACPI_ERROR((AE_INFO, "No return value")); 114 ACPI_ERROR((AE_INFO, "No return value"));
@@ -131,6 +130,7 @@ acpi_evaluate_object_typed(acpi_handle handle,
131 acpi_ut_get_type_name(return_type))); 130 acpi_ut_get_type_name(return_type)));
132 131
133 if (must_free) { 132 if (must_free) {
133
134 /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ 134 /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
135 135
136 acpi_os_free(return_buffer->pointer); 136 acpi_os_free(return_buffer->pointer);
@@ -140,6 +140,8 @@ acpi_evaluate_object_typed(acpi_handle handle,
140 return_buffer->length = 0; 140 return_buffer->length = 0;
141 return_ACPI_STATUS(AE_TYPE); 141 return_ACPI_STATUS(AE_TYPE);
142} 142}
143
144ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
143#endif /* ACPI_FUTURE_USAGE */ 145#endif /* ACPI_FUTURE_USAGE */
144 146
145/******************************************************************************* 147/*******************************************************************************
@@ -161,7 +163,6 @@ acpi_evaluate_object_typed(acpi_handle handle,
161 * be valid (non-null) 163 * be valid (non-null)
162 * 164 *
163 ******************************************************************************/ 165 ******************************************************************************/
164
165acpi_status 166acpi_status
166acpi_evaluate_object(acpi_handle handle, 167acpi_evaluate_object(acpi_handle handle,
167 acpi_string pathname, 168 acpi_string pathname,
@@ -170,51 +171,61 @@ acpi_evaluate_object(acpi_handle handle,
170{ 171{
171 acpi_status status; 172 acpi_status status;
172 acpi_status status2; 173 acpi_status status2;
173 struct acpi_parameter_info info; 174 struct acpi_evaluate_info *info;
174 acpi_size buffer_space_needed; 175 acpi_size buffer_space_needed;
175 u32 i; 176 u32 i;
176 177
177 ACPI_FUNCTION_TRACE("acpi_evaluate_object"); 178 ACPI_FUNCTION_TRACE(acpi_evaluate_object);
178 179
179 info.node = handle; 180 /* Allocate and initialize the evaluation information block */
180 info.parameters = NULL; 181
181 info.return_object = NULL; 182 info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info));
182 info.parameter_type = ACPI_PARAM_ARGS; 183 if (!info) {
184 return_ACPI_STATUS(AE_NO_MEMORY);
185 }
186
187 info->pathname = pathname;
188 info->parameter_type = ACPI_PARAM_ARGS;
189
190 /* Convert and validate the device handle */
191
192 info->prefix_node = acpi_ns_map_handle_to_node(handle);
193 if (!info->prefix_node) {
194 status = AE_BAD_PARAMETER;
195 goto cleanup;
196 }
183 197
184 /* 198 /*
185 * If there are parameters to be passed to the object 199 * If there are parameters to be passed to a control method, the external
186 * (which must be a control method), the external objects 200 * objects must all be converted to internal objects
187 * must be converted to internal objects
188 */ 201 */
189 if (external_params && external_params->count) { 202 if (external_params && external_params->count) {
190 /* 203 /*
191 * Allocate a new parameter block for the internal objects 204 * Allocate a new parameter block for the internal objects
192 * Add 1 to count to allow for null terminated internal list 205 * Add 1 to count to allow for null terminated internal list
193 */ 206 */
194 info.parameters = ACPI_MEM_CALLOCATE(((acpi_size) 207 info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size)
195 external_params->count + 208 external_params->
196 1) * sizeof(void *)); 209 count +
197 if (!info.parameters) { 210 1) * sizeof(void *));
198 return_ACPI_STATUS(AE_NO_MEMORY); 211 if (!info->parameters) {
212 status = AE_NO_MEMORY;
213 goto cleanup;
199 } 214 }
200 215
201 /* 216 /* Convert each external object in the list to an internal object */
202 * Convert each external object in the list to an 217
203 * internal object
204 */
205 for (i = 0; i < external_params->count; i++) { 218 for (i = 0; i < external_params->count; i++) {
206 status = 219 status =
207 acpi_ut_copy_eobject_to_iobject(&external_params-> 220 acpi_ut_copy_eobject_to_iobject(&external_params->
208 pointer[i], 221 pointer[i],
209 &info. 222 &info->
210 parameters[i]); 223 parameters[i]);
211 if (ACPI_FAILURE(status)) { 224 if (ACPI_FAILURE(status)) {
212 acpi_ut_delete_internal_object_list(info. 225 goto cleanup;
213 parameters);
214 return_ACPI_STATUS(status);
215 } 226 }
216 } 227 }
217 info.parameters[external_params->count] = NULL; 228 info->parameters[external_params->count] = NULL;
218 } 229 }
219 230
220 /* 231 /*
@@ -224,43 +235,31 @@ acpi_evaluate_object(acpi_handle handle,
224 * 3) Valid handle 235 * 3) Valid handle
225 */ 236 */
226 if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) { 237 if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) {
227 /* 238
228 * The path is fully qualified, just evaluate by name 239 /* The path is fully qualified, just evaluate by name */
229 */ 240
230 status = acpi_ns_evaluate_by_name(pathname, &info); 241 info->prefix_node = NULL;
242 status = acpi_ns_evaluate(info);
231 } else if (!handle) { 243 } else if (!handle) {
232 /* 244 /*
233 * A handle is optional iff a fully qualified pathname 245 * A handle is optional iff a fully qualified pathname is specified.
234 * is specified. Since we've already handled fully 246 * Since we've already handled fully qualified names above, this is
235 * qualified names above, this is an error 247 * an error
236 */ 248 */
237 if (!pathname) { 249 if (!pathname) {
238 ACPI_ERROR((AE_INFO, 250 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
239 "Both Handle and Pathname are NULL")); 251 "Both Handle and Pathname are NULL"));
240 } else { 252 } else {
241 ACPI_ERROR((AE_INFO, 253 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
242 "Handle is NULL and Pathname is relative")); 254 "Null Handle with relative pathname [%s]",
255 pathname));
243 } 256 }
244 257
245 status = AE_BAD_PARAMETER; 258 status = AE_BAD_PARAMETER;
246 } else { 259 } else {
247 /* 260 /* We have a namespace a node and a possible relative path */
248 * We get here if we have a handle -- and if we have a 261
249 * pathname it is relative. The handle will be validated 262 status = acpi_ns_evaluate(info);
250 * in the lower procedures
251 */
252 if (!pathname) {
253 /*
254 * The null pathname case means the handle is for
255 * the actual object to be evaluated
256 */
257 status = acpi_ns_evaluate_by_handle(&info);
258 } else {
259 /*
260 * Both a Handle and a relative Pathname
261 */
262 status = acpi_ns_evaluate_relative(pathname, &info);
263 }
264 } 263 }
265 264
266 /* 265 /*
@@ -268,10 +267,10 @@ acpi_evaluate_object(acpi_handle handle,
268 * copy the return value to an external object. 267 * copy the return value to an external object.
269 */ 268 */
270 if (return_buffer) { 269 if (return_buffer) {
271 if (!info.return_object) { 270 if (!info->return_object) {
272 return_buffer->length = 0; 271 return_buffer->length = 0;
273 } else { 272 } else {
274 if (ACPI_GET_DESCRIPTOR_TYPE(info.return_object) == 273 if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) ==
275 ACPI_DESC_TYPE_NAMED) { 274 ACPI_DESC_TYPE_NAMED) {
276 /* 275 /*
277 * If we received a NS Node as a return object, this means that 276 * If we received a NS Node as a return object, this means that
@@ -282,19 +281,19 @@ acpi_evaluate_object(acpi_handle handle,
282 * support for various types at a later date if necessary. 281 * support for various types at a later date if necessary.
283 */ 282 */
284 status = AE_TYPE; 283 status = AE_TYPE;
285 info.return_object = NULL; /* No need to delete a NS Node */ 284 info->return_object = NULL; /* No need to delete a NS Node */
286 return_buffer->length = 0; 285 return_buffer->length = 0;
287 } 286 }
288 287
289 if (ACPI_SUCCESS(status)) { 288 if (ACPI_SUCCESS(status)) {
290 /* 289
291 * Find out how large a buffer is needed 290 /* Get the size of the returned object */
292 * to contain the returned object 291
293 */
294 status = 292 status =
295 acpi_ut_get_object_size(info.return_object, 293 acpi_ut_get_object_size(info->return_object,
296 &buffer_space_needed); 294 &buffer_space_needed);
297 if (ACPI_SUCCESS(status)) { 295 if (ACPI_SUCCESS(status)) {
296
298 /* Validate/Allocate/Clear caller buffer */ 297 /* Validate/Allocate/Clear caller buffer */
299 298
300 status = 299 status =
@@ -303,7 +302,8 @@ acpi_evaluate_object(acpi_handle handle,
303 buffer_space_needed); 302 buffer_space_needed);
304 if (ACPI_FAILURE(status)) { 303 if (ACPI_FAILURE(status)) {
305 /* 304 /*
306 * Caller's buffer is too small or a new one can't be allocated 305 * Caller's buffer is too small or a new one can't
306 * be allocated
307 */ 307 */
308 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 308 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
309 "Needed buffer size %X, %s\n", 309 "Needed buffer size %X, %s\n",
@@ -312,12 +312,11 @@ acpi_evaluate_object(acpi_handle handle,
312 acpi_format_exception 312 acpi_format_exception
313 (status))); 313 (status)));
314 } else { 314 } else {
315 /* 315 /* We have enough space for the object, build it */
316 * We have enough space for the object, build it 316
317 */
318 status = 317 status =
319 acpi_ut_copy_iobject_to_eobject 318 acpi_ut_copy_iobject_to_eobject
320 (info.return_object, 319 (info->return_object,
321 return_buffer); 320 return_buffer);
322 } 321 }
323 } 322 }
@@ -325,35 +324,37 @@ acpi_evaluate_object(acpi_handle handle,
325 } 324 }
326 } 325 }
327 326
328 if (info.return_object) { 327 if (info->return_object) {
329 /* 328 /*
330 * Delete the internal return object. NOTE: Interpreter 329 * Delete the internal return object. NOTE: Interpreter must be
331 * must be locked to avoid race condition. 330 * locked to avoid race condition.
332 */ 331 */
333 status2 = acpi_ex_enter_interpreter(); 332 status2 = acpi_ex_enter_interpreter();
334 if (ACPI_SUCCESS(status2)) { 333 if (ACPI_SUCCESS(status2)) {
335 /* 334
336 * Delete the internal return object. (Or at least 335 /* Remove one reference on the return object (should delete it) */
337 * decrement the reference count by one) 336
338 */ 337 acpi_ut_remove_reference(info->return_object);
339 acpi_ut_remove_reference(info.return_object);
340 acpi_ex_exit_interpreter(); 338 acpi_ex_exit_interpreter();
341 } 339 }
342 } 340 }
343 341
344 /* 342 cleanup:
345 * Free the input parameter list (if we created one), 343
346 */ 344 /* Free the input parameter list (if we created one) */
347 if (info.parameters) { 345
346 if (info->parameters) {
347
348 /* Free the allocated parameter block */ 348 /* Free the allocated parameter block */
349 349
350 acpi_ut_delete_internal_object_list(info.parameters); 350 acpi_ut_delete_internal_object_list(info->parameters);
351 } 351 }
352 352
353 ACPI_FREE(info);
353 return_ACPI_STATUS(status); 354 return_ACPI_STATUS(status);
354} 355}
355 356
356EXPORT_SYMBOL(acpi_evaluate_object); 357ACPI_EXPORT_SYMBOL(acpi_evaluate_object)
357 358
358/******************************************************************************* 359/*******************************************************************************
359 * 360 *
@@ -384,7 +385,6 @@ EXPORT_SYMBOL(acpi_evaluate_object);
384 * function, etc. 385 * function, etc.
385 * 386 *
386 ******************************************************************************/ 387 ******************************************************************************/
387
388acpi_status 388acpi_status
389acpi_walk_namespace(acpi_object_type type, 389acpi_walk_namespace(acpi_object_type type,
390 acpi_handle start_object, 390 acpi_handle start_object,
@@ -394,7 +394,7 @@ acpi_walk_namespace(acpi_object_type type,
394{ 394{
395 acpi_status status; 395 acpi_status status;
396 396
397 ACPI_FUNCTION_TRACE("acpi_walk_namespace"); 397 ACPI_FUNCTION_TRACE(acpi_walk_namespace);
398 398
399 /* Parameter validation */ 399 /* Parameter validation */
400 400
@@ -421,7 +421,7 @@ acpi_walk_namespace(acpi_object_type type,
421 return_ACPI_STATUS(status); 421 return_ACPI_STATUS(status);
422} 422}
423 423
424EXPORT_SYMBOL(acpi_walk_namespace); 424ACPI_EXPORT_SYMBOL(acpi_walk_namespace)
425 425
426/******************************************************************************* 426/*******************************************************************************
427 * 427 *
@@ -436,7 +436,6 @@ EXPORT_SYMBOL(acpi_walk_namespace);
436 * on that. 436 * on that.
437 * 437 *
438 ******************************************************************************/ 438 ******************************************************************************/
439
440static acpi_status 439static acpi_status
441acpi_ns_get_device_callback(acpi_handle obj_handle, 440acpi_ns_get_device_callback(acpi_handle obj_handle,
442 u32 nesting_level, 441 u32 nesting_level,
@@ -473,6 +472,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
473 } 472 }
474 473
475 if (!(flags & ACPI_STA_DEVICE_PRESENT)) { 474 if (!(flags & ACPI_STA_DEVICE_PRESENT)) {
475
476 /* Don't examine children of the device if not present */ 476 /* Don't examine children of the device if not present */
477 477
478 return (AE_CTRL_DEPTH); 478 return (AE_CTRL_DEPTH);
@@ -489,6 +489,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
489 } 489 }
490 490
491 if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { 491 if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) {
492
492 /* Get the list of Compatible IDs */ 493 /* Get the list of Compatible IDs */
493 494
494 status = acpi_ut_execute_CID(node, &cid); 495 status = acpi_ut_execute_CID(node, &cid);
@@ -505,11 +506,11 @@ acpi_ns_get_device_callback(acpi_handle obj_handle,
505 sizeof(struct 506 sizeof(struct
506 acpi_compatible_id)) != 507 acpi_compatible_id)) !=
507 0) { 508 0) {
508 ACPI_MEM_FREE(cid); 509 ACPI_FREE(cid);
509 return (AE_OK); 510 return (AE_OK);
510 } 511 }
511 } 512 }
512 ACPI_MEM_FREE(cid); 513 ACPI_FREE(cid);
513 } 514 }
514 } 515 }
515 516
@@ -551,7 +552,7 @@ acpi_get_devices(char *HID,
551 acpi_status status; 552 acpi_status status;
552 struct acpi_get_devices_info info; 553 struct acpi_get_devices_info info;
553 554
554 ACPI_FUNCTION_TRACE("acpi_get_devices"); 555 ACPI_FUNCTION_TRACE(acpi_get_devices);
555 556
556 /* Parameter validation */ 557 /* Parameter validation */
557 558
@@ -563,9 +564,9 @@ acpi_get_devices(char *HID,
563 * We're going to call their callback from OUR callback, so we need 564 * We're going to call their callback from OUR callback, so we need
564 * to know what it is, and their context parameter. 565 * to know what it is, and their context parameter.
565 */ 566 */
567 info.hid = HID;
566 info.context = context; 568 info.context = context;
567 info.user_function = user_function; 569 info.user_function = user_function;
568 info.hid = HID;
569 570
570 /* 571 /*
571 * Lock the namespace around the walk. 572 * Lock the namespace around the walk.
@@ -578,9 +579,8 @@ acpi_get_devices(char *HID,
578 return_ACPI_STATUS(status); 579 return_ACPI_STATUS(status);
579 } 580 }
580 581
581 status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, 582 status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
582 ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, 583 ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
583 ACPI_NS_WALK_UNLOCK,
584 acpi_ns_get_device_callback, &info, 584 acpi_ns_get_device_callback, &info,
585 return_value); 585 return_value);
586 586
@@ -588,7 +588,7 @@ acpi_get_devices(char *HID,
588 return_ACPI_STATUS(status); 588 return_ACPI_STATUS(status);
589} 589}
590 590
591EXPORT_SYMBOL(acpi_get_devices); 591ACPI_EXPORT_SYMBOL(acpi_get_devices)
592 592
593/******************************************************************************* 593/*******************************************************************************
594 * 594 *
@@ -603,7 +603,6 @@ EXPORT_SYMBOL(acpi_get_devices);
603 * DESCRIPTION: Attach arbitrary data and handler to a namespace node. 603 * DESCRIPTION: Attach arbitrary data and handler to a namespace node.
604 * 604 *
605 ******************************************************************************/ 605 ******************************************************************************/
606
607acpi_status 606acpi_status
608acpi_attach_data(acpi_handle obj_handle, 607acpi_attach_data(acpi_handle obj_handle,
609 acpi_object_handler handler, void *data) 608 acpi_object_handler handler, void *data)
@@ -637,6 +636,8 @@ acpi_attach_data(acpi_handle obj_handle,
637 return (status); 636 return (status);
638} 637}
639 638
639ACPI_EXPORT_SYMBOL(acpi_attach_data)
640
640/******************************************************************************* 641/*******************************************************************************
641 * 642 *
642 * FUNCTION: acpi_detach_data 643 * FUNCTION: acpi_detach_data
@@ -649,7 +650,6 @@ acpi_attach_data(acpi_handle obj_handle,
649 * DESCRIPTION: Remove data that was previously attached to a node. 650 * DESCRIPTION: Remove data that was previously attached to a node.
650 * 651 *
651 ******************************************************************************/ 652 ******************************************************************************/
652
653acpi_status 653acpi_status
654acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) 654acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
655{ 655{
@@ -682,6 +682,8 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
682 return (status); 682 return (status);
683} 683}
684 684
685ACPI_EXPORT_SYMBOL(acpi_detach_data)
686
685/******************************************************************************* 687/*******************************************************************************
686 * 688 *
687 * FUNCTION: acpi_get_data 689 * FUNCTION: acpi_get_data
@@ -695,7 +697,6 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
695 * DESCRIPTION: Retrieve data that was previously attached to a namespace node. 697 * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
696 * 698 *
697 ******************************************************************************/ 699 ******************************************************************************/
698
699acpi_status 700acpi_status
700acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) 701acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
701{ 702{
@@ -727,3 +728,5 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
727 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); 728 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
728 return (status); 729 return (status);
729} 730}
731
732ACPI_EXPORT_SYMBOL(acpi_get_data)
diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c
index 8cd8675a47c0..978213a6c19f 100644
--- a/drivers/acpi/namespace/nsxfname.c
+++ b/drivers/acpi/namespace/nsxfname.c
@@ -42,8 +42,6 @@
42 * POSSIBILITY OF SUCH DAMAGES. 42 * POSSIBILITY OF SUCH DAMAGES.
43 */ 43 */
44 44
45#include <linux/module.h>
46
47#include <acpi/acpi.h> 45#include <acpi/acpi.h>
48#include <acpi/acnamesp.h> 46#include <acpi/acnamesp.h>
49 47
@@ -114,9 +112,8 @@ acpi_get_handle(acpi_handle parent,
114 /* 112 /*
115 * Find the Node and convert to a handle 113 * Find the Node and convert to a handle
116 */ 114 */
117 status = 115 status = acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH,
118 acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH, 116 &node);
119 &node);
120 117
121 *ret_handle = NULL; 118 *ret_handle = NULL;
122 if (ACPI_SUCCESS(status)) { 119 if (ACPI_SUCCESS(status)) {
@@ -126,7 +123,7 @@ acpi_get_handle(acpi_handle parent,
126 return (status); 123 return (status);
127} 124}
128 125
129EXPORT_SYMBOL(acpi_get_handle); 126ACPI_EXPORT_SYMBOL(acpi_get_handle)
130 127
131/****************************************************************************** 128/******************************************************************************
132 * 129 *
@@ -143,7 +140,6 @@ EXPORT_SYMBOL(acpi_get_handle);
143 * complementary functions. 140 * complementary functions.
144 * 141 *
145 ******************************************************************************/ 142 ******************************************************************************/
146
147acpi_status 143acpi_status
148acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) 144acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
149{ 145{
@@ -162,6 +158,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
162 } 158 }
163 159
164 if (name_type == ACPI_FULL_PATHNAME) { 160 if (name_type == ACPI_FULL_PATHNAME) {
161
165 /* Get the full pathname (From the namespace root) */ 162 /* Get the full pathname (From the namespace root) */
166 163
167 status = acpi_ns_handle_to_pathname(handle, buffer); 164 status = acpi_ns_handle_to_pathname(handle, buffer);
@@ -203,7 +200,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
203 return (status); 200 return (status);
204} 201}
205 202
206EXPORT_SYMBOL(acpi_get_name); 203ACPI_EXPORT_SYMBOL(acpi_get_name)
207 204
208/****************************************************************************** 205/******************************************************************************
209 * 206 *
@@ -219,7 +216,6 @@ EXPORT_SYMBOL(acpi_get_name);
219 * control methods (Such as in the case of a device.) 216 * control methods (Such as in the case of a device.)
220 * 217 *
221 ******************************************************************************/ 218 ******************************************************************************/
222
223acpi_status 219acpi_status
224acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) 220acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
225{ 221{
@@ -241,7 +237,7 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
241 return (status); 237 return (status);
242 } 238 }
243 239
244 info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_device_info)); 240 info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info));
245 if (!info) { 241 if (!info) {
246 return (AE_NO_MEMORY); 242 return (AE_NO_MEMORY);
247 } 243 }
@@ -345,11 +341,11 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer)
345 } 341 }
346 342
347 cleanup: 343 cleanup:
348 ACPI_MEM_FREE(info); 344 ACPI_FREE(info);
349 if (cid_list) { 345 if (cid_list) {
350 ACPI_MEM_FREE(cid_list); 346 ACPI_FREE(cid_list);
351 } 347 }
352 return (status); 348 return (status);
353} 349}
354 350
355EXPORT_SYMBOL(acpi_get_object_info); 351ACPI_EXPORT_SYMBOL(acpi_get_object_info)
diff --git a/drivers/acpi/namespace/nsxfobj.c b/drivers/acpi/namespace/nsxfobj.c
index a0332595677a..a163e1d3708d 100644
--- a/drivers/acpi/namespace/nsxfobj.c
+++ b/drivers/acpi/namespace/nsxfobj.c
@@ -42,8 +42,6 @@
42 * POSSIBILITY OF SUCH DAMAGES. 42 * POSSIBILITY OF SUCH DAMAGES.
43 */ 43 */
44 44
45#include <linux/module.h>
46
47#include <acpi/acpi.h> 45#include <acpi/acpi.h>
48#include <acpi/acnamesp.h> 46#include <acpi/acnamesp.h>
49 47
@@ -101,7 +99,7 @@ acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type)
101 return (status); 99 return (status);
102} 100}
103 101
104EXPORT_SYMBOL(acpi_get_type); 102ACPI_EXPORT_SYMBOL(acpi_get_type)
105 103
106/******************************************************************************* 104/*******************************************************************************
107 * 105 *
@@ -116,7 +114,6 @@ EXPORT_SYMBOL(acpi_get_type);
116 * Handle. 114 * Handle.
117 * 115 *
118 ******************************************************************************/ 116 ******************************************************************************/
119
120acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) 117acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
121{ 118{
122 struct acpi_namespace_node *node; 119 struct acpi_namespace_node *node;
@@ -162,7 +159,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
162 return (status); 159 return (status);
163} 160}
164 161
165EXPORT_SYMBOL(acpi_get_parent); 162ACPI_EXPORT_SYMBOL(acpi_get_parent)
166 163
167/******************************************************************************* 164/*******************************************************************************
168 * 165 *
@@ -181,7 +178,6 @@ EXPORT_SYMBOL(acpi_get_parent);
181 * Scope is returned. 178 * Scope is returned.
182 * 179 *
183 ******************************************************************************/ 180 ******************************************************************************/
184
185acpi_status 181acpi_status
186acpi_get_next_object(acpi_object_type type, 182acpi_get_next_object(acpi_object_type type,
187 acpi_handle parent, 183 acpi_handle parent,
@@ -206,6 +202,7 @@ acpi_get_next_object(acpi_object_type type,
206 /* If null handle, use the parent */ 202 /* If null handle, use the parent */
207 203
208 if (!child) { 204 if (!child) {
205
209 /* Start search at the beginning of the specified scope */ 206 /* Start search at the beginning of the specified scope */
210 207
211 parent_node = acpi_ns_map_handle_to_node(parent); 208 parent_node = acpi_ns_map_handle_to_node(parent);
@@ -242,4 +239,4 @@ acpi_get_next_object(acpi_object_type type,
242 return (status); 239 return (status);
243} 240}
244 241
245EXPORT_SYMBOL(acpi_get_next_object); 242ACPI_EXPORT_SYMBOL(acpi_get_next_object)
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-09 11:59:37 -0500