diff options
author | Len Brown <len.brown@intel.com> | 2009-12-15 22:27:39 -0500 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2009-12-15 22:27:39 -0500 |
commit | 173cc11a6e10c38ff7d4949b48e8d2eb0aee3e05 (patch) | |
tree | 44ac9a6fe4e9c51b2c54918aa338df7eda96b0a5 /drivers/acpi/acpica | |
parent | 8bea8672edfca7ec5f661cafb218f1205863b343 (diff) | |
parent | 88e5071525ad6814be3a8a2792ce9e81a0cca22a (diff) |
Merge branch 'acpica' into release
Diffstat (limited to 'drivers/acpi/acpica')
24 files changed, 715 insertions, 297 deletions
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index ab83919dda61..61edb156e8d0 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h | |||
@@ -296,6 +296,11 @@ acpi_ns_complex_repairs(struct acpi_predefined_data *data, | |||
296 | acpi_status validate_status, | 296 | acpi_status validate_status, |
297 | union acpi_operand_object **return_object_ptr); | 297 | union acpi_operand_object **return_object_ptr); |
298 | 298 | ||
299 | void | ||
300 | acpi_ns_remove_null_elements(struct acpi_predefined_data *data, | ||
301 | u8 package_type, | ||
302 | union acpi_operand_object *obj_desc); | ||
303 | |||
299 | /* | 304 | /* |
300 | * nssearch - Namespace searching and entry | 305 | * nssearch - Namespace searching and entry |
301 | */ | 306 | */ |
@@ -354,9 +359,7 @@ acpi_ns_externalize_name(u32 internal_name_length, | |||
354 | const char *internal_name, | 359 | const char *internal_name, |
355 | u32 * converted_name_length, char **converted_name); | 360 | u32 * converted_name_length, char **converted_name); |
356 | 361 | ||
357 | struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle); | 362 | struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle); |
358 | |||
359 | acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node); | ||
360 | 363 | ||
361 | void acpi_ns_terminate(void); | 364 | void acpi_ns_terminate(void); |
362 | 365 | ||
diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index b39d682a2140..64062b1be3ee 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h | |||
@@ -180,7 +180,11 @@ struct acpi_object_method { | |||
180 | u8 sync_level; | 180 | u8 sync_level; |
181 | union acpi_operand_object *mutex; | 181 | union acpi_operand_object *mutex; |
182 | u8 *aml_start; | 182 | u8 *aml_start; |
183 | ACPI_INTERNAL_METHOD implementation; | 183 | union { |
184 | ACPI_INTERNAL_METHOD implementation; | ||
185 | union acpi_operand_object *handler; | ||
186 | } extra; | ||
187 | |||
184 | u32 aml_length; | 188 | u32 aml_length; |
185 | u8 thread_count; | 189 | u8 thread_count; |
186 | acpi_owner_id owner_id; | 190 | acpi_owner_id owner_id; |
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 567a4899a018..e786f9fd767f 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c | |||
@@ -414,7 +414,7 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, | |||
414 | /* Invoke an internal method if necessary */ | 414 | /* Invoke an internal method if necessary */ |
415 | 415 | ||
416 | if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { | 416 | if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { |
417 | status = obj_desc->method.implementation(next_walk_state); | 417 | status = obj_desc->method.extra.implementation(next_walk_state); |
418 | if (status == AE_OK) { | 418 | if (status == AE_OK) { |
419 | status = AE_CTRL_TERMINATE; | 419 | status = AE_CTRL_TERMINATE; |
420 | } | 420 | } |
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 10fc78517843..b40513dd6a6a 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c | |||
@@ -212,18 +212,19 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, | |||
212 | case ACPI_TYPE_BUFFER: | 212 | case ACPI_TYPE_BUFFER: |
213 | 213 | ||
214 | /* | 214 | /* |
215 | * These types we will allow, but we will change the type. This | 215 | * These types we will allow, but we will change the type. |
216 | * enables some existing code of the form: | 216 | * This enables some existing code of the form: |
217 | * | 217 | * |
218 | * Name (DEB, 0) | 218 | * Name (DEB, 0) |
219 | * Scope (DEB) { ... } | 219 | * Scope (DEB) { ... } |
220 | * | 220 | * |
221 | * Note: silently change the type here. On the second pass, we will report | 221 | * Note: silently change the type here. On the second pass, |
222 | * a warning | 222 | * we will report a warning |
223 | */ | 223 | */ |
224 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, | 224 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
225 | "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", | 225 | "Type override - [%4.4s] had invalid type (%s) " |
226 | path, | 226 | "for Scope operator, changed to type ANY\n", |
227 | acpi_ut_get_node_name(node), | ||
227 | acpi_ut_get_type_name(node->type))); | 228 | acpi_ut_get_type_name(node->type))); |
228 | 229 | ||
229 | node->type = ACPI_TYPE_ANY; | 230 | node->type = ACPI_TYPE_ANY; |
@@ -235,8 +236,10 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, | |||
235 | /* All other types are an error */ | 236 | /* All other types are an error */ |
236 | 237 | ||
237 | ACPI_ERROR((AE_INFO, | 238 | ACPI_ERROR((AE_INFO, |
238 | "Invalid type (%s) for target of Scope operator [%4.4s] (Cannot override)", | 239 | "Invalid type (%s) for target of " |
239 | acpi_ut_get_type_name(node->type), path)); | 240 | "Scope operator [%4.4s] (Cannot override)", |
241 | acpi_ut_get_type_name(node->type), | ||
242 | acpi_ut_get_node_name(node))); | ||
240 | 243 | ||
241 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); | 244 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
242 | } | 245 | } |
@@ -697,15 +700,16 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, | |||
697 | case ACPI_TYPE_BUFFER: | 700 | case ACPI_TYPE_BUFFER: |
698 | 701 | ||
699 | /* | 702 | /* |
700 | * These types we will allow, but we will change the type. This | 703 | * These types we will allow, but we will change the type. |
701 | * enables some existing code of the form: | 704 | * This enables some existing code of the form: |
702 | * | 705 | * |
703 | * Name (DEB, 0) | 706 | * Name (DEB, 0) |
704 | * Scope (DEB) { ... } | 707 | * Scope (DEB) { ... } |
705 | */ | 708 | */ |
706 | ACPI_WARNING((AE_INFO, | 709 | ACPI_WARNING((AE_INFO, |
707 | "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", | 710 | "Type override - [%4.4s] had invalid type (%s) " |
708 | buffer_ptr, | 711 | "for Scope operator, changed to type ANY\n", |
712 | acpi_ut_get_node_name(node), | ||
709 | acpi_ut_get_type_name(node->type))); | 713 | acpi_ut_get_type_name(node->type))); |
710 | 714 | ||
711 | node->type = ACPI_TYPE_ANY; | 715 | node->type = ACPI_TYPE_ANY; |
@@ -717,9 +721,10 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, | |||
717 | /* All other types are an error */ | 721 | /* All other types are an error */ |
718 | 722 | ||
719 | ACPI_ERROR((AE_INFO, | 723 | ACPI_ERROR((AE_INFO, |
720 | "Invalid type (%s) for target of Scope operator [%4.4s]", | 724 | "Invalid type (%s) for target of " |
725 | "Scope operator [%4.4s] (Cannot override)", | ||
721 | acpi_ut_get_type_name(node->type), | 726 | acpi_ut_get_type_name(node->type), |
722 | buffer_ptr)); | 727 | acpi_ut_get_node_name(node))); |
723 | 728 | ||
724 | return (AE_AML_OPERAND_TYPE); | 729 | return (AE_AML_OPERAND_TYPE); |
725 | } | 730 | } |
@@ -1047,9 +1052,22 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) | |||
1047 | } | 1052 | } |
1048 | 1053 | ||
1049 | /* | 1054 | /* |
1050 | * If we are executing a method, initialize the region | 1055 | * The op_region is not fully parsed at this time. The only valid |
1056 | * argument is the space_id. (We must save the address of the | ||
1057 | * AML of the address and length operands) | ||
1058 | * | ||
1059 | * If we have a valid region, initialize it. The namespace is | ||
1060 | * unlocked at this point. | ||
1061 | * | ||
1062 | * Need to unlock interpreter if it is locked (if we are running | ||
1063 | * a control method), in order to allow _REG methods to be run | ||
1064 | * during acpi_ev_initialize_region. | ||
1051 | */ | 1065 | */ |
1052 | if (walk_state->method_node) { | 1066 | if (walk_state->method_node) { |
1067 | /* | ||
1068 | * Executing a method: initialize the region and unlock | ||
1069 | * the interpreter | ||
1070 | */ | ||
1053 | status = | 1071 | status = |
1054 | acpi_ex_create_region(op->named.data, | 1072 | acpi_ex_create_region(op->named.data, |
1055 | op->named.length, | 1073 | op->named.length, |
@@ -1058,21 +1076,17 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) | |||
1058 | if (ACPI_FAILURE(status)) { | 1076 | if (ACPI_FAILURE(status)) { |
1059 | return (status); | 1077 | return (status); |
1060 | } | 1078 | } |
1061 | } | ||
1062 | 1079 | ||
1063 | /* | 1080 | acpi_ex_exit_interpreter(); |
1064 | * The op_region is not fully parsed at this time. Only valid | 1081 | } |
1065 | * argument is the space_id. (We must save the address of the | ||
1066 | * AML of the address and length operands) | ||
1067 | */ | ||
1068 | 1082 | ||
1069 | /* | ||
1070 | * If we have a valid region, initialize it | ||
1071 | * Namespace is NOT locked at this point. | ||
1072 | */ | ||
1073 | status = | 1083 | status = |
1074 | acpi_ev_initialize_region | 1084 | acpi_ev_initialize_region |
1075 | (acpi_ns_get_attached_object(node), FALSE); | 1085 | (acpi_ns_get_attached_object(node), FALSE); |
1086 | if (walk_state->method_node) { | ||
1087 | acpi_ex_enter_interpreter(); | ||
1088 | } | ||
1089 | |||
1076 | if (ACPI_FAILURE(status)) { | 1090 | if (ACPI_FAILURE(status)) { |
1077 | /* | 1091 | /* |
1078 | * If AE_NOT_EXIST is returned, it is not fatal | 1092 | * If AE_NOT_EXIST is returned, it is not fatal |
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 0bc807c33a56..5336d911fbf0 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c | |||
@@ -718,7 +718,7 @@ acpi_ev_install_handler(acpi_handle obj_handle, | |||
718 | 718 | ||
719 | /* Convert and validate the device handle */ | 719 | /* Convert and validate the device handle */ |
720 | 720 | ||
721 | node = acpi_ns_map_handle_to_node(obj_handle); | 721 | node = acpi_ns_validate_handle(obj_handle); |
722 | if (!node) { | 722 | if (!node) { |
723 | return (AE_BAD_PARAMETER); | 723 | return (AE_BAD_PARAMETER); |
724 | } | 724 | } |
@@ -1087,7 +1087,7 @@ acpi_ev_reg_run(acpi_handle obj_handle, | |||
1087 | 1087 | ||
1088 | /* Convert and validate the device handle */ | 1088 | /* Convert and validate the device handle */ |
1089 | 1089 | ||
1090 | node = acpi_ns_map_handle_to_node(obj_handle); | 1090 | node = acpi_ns_validate_handle(obj_handle); |
1091 | if (!node) { | 1091 | if (!node) { |
1092 | return (AE_BAD_PARAMETER); | 1092 | return (AE_BAD_PARAMETER); |
1093 | } | 1093 | } |
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index cf29c4953028..ff168052a332 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c | |||
@@ -575,6 +575,21 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, | |||
575 | handler_obj = obj_desc->thermal_zone.handler; | 575 | handler_obj = obj_desc->thermal_zone.handler; |
576 | break; | 576 | break; |
577 | 577 | ||
578 | case ACPI_TYPE_METHOD: | ||
579 | /* | ||
580 | * If we are executing module level code, the original | ||
581 | * Node's object was replaced by this Method object and we | ||
582 | * saved the handler in the method object. | ||
583 | * | ||
584 | * See acpi_ns_exec_module_code | ||
585 | */ | ||
586 | if (obj_desc->method. | ||
587 | flags & AOPOBJ_MODULE_LEVEL) { | ||
588 | handler_obj = | ||
589 | obj_desc->method.extra.handler; | ||
590 | } | ||
591 | break; | ||
592 | |||
578 | default: | 593 | default: |
579 | /* Ignore other objects */ | 594 | /* Ignore other objects */ |
580 | break; | 595 | break; |
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 10b8543dd466..2fe0809d4eb2 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c | |||
@@ -259,7 +259,7 @@ acpi_install_notify_handler(acpi_handle device, | |||
259 | 259 | ||
260 | /* Convert and validate the device handle */ | 260 | /* Convert and validate the device handle */ |
261 | 261 | ||
262 | node = acpi_ns_map_handle_to_node(device); | 262 | node = acpi_ns_validate_handle(device); |
263 | if (!node) { | 263 | if (!node) { |
264 | status = AE_BAD_PARAMETER; | 264 | status = AE_BAD_PARAMETER; |
265 | goto unlock_and_exit; | 265 | goto unlock_and_exit; |
@@ -425,7 +425,7 @@ acpi_remove_notify_handler(acpi_handle device, | |||
425 | 425 | ||
426 | /* Convert and validate the device handle */ | 426 | /* Convert and validate the device handle */ |
427 | 427 | ||
428 | node = acpi_ns_map_handle_to_node(device); | 428 | node = acpi_ns_validate_handle(device); |
429 | if (!node) { | 429 | if (!node) { |
430 | status = AE_BAD_PARAMETER; | 430 | status = AE_BAD_PARAMETER; |
431 | goto unlock_and_exit; | 431 | goto unlock_and_exit; |
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index 4721f58fe42c..eed7a38d25f2 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c | |||
@@ -610,7 +610,7 @@ acpi_install_gpe_block(acpi_handle gpe_device, | |||
610 | return (status); | 610 | return (status); |
611 | } | 611 | } |
612 | 612 | ||
613 | node = acpi_ns_map_handle_to_node(gpe_device); | 613 | node = acpi_ns_validate_handle(gpe_device); |
614 | if (!node) { | 614 | if (!node) { |
615 | status = AE_BAD_PARAMETER; | 615 | status = AE_BAD_PARAMETER; |
616 | goto unlock_and_exit; | 616 | goto unlock_and_exit; |
@@ -698,7 +698,7 @@ acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) | |||
698 | return (status); | 698 | return (status); |
699 | } | 699 | } |
700 | 700 | ||
701 | node = acpi_ns_map_handle_to_node(gpe_device); | 701 | node = acpi_ns_validate_handle(gpe_device); |
702 | if (!node) { | 702 | if (!node) { |
703 | status = AE_BAD_PARAMETER; | 703 | status = AE_BAD_PARAMETER; |
704 | goto unlock_and_exit; | 704 | goto unlock_and_exit; |
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index 7c3d2d356ffb..c98aa7c2d67c 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c | |||
@@ -89,7 +89,7 @@ acpi_install_address_space_handler(acpi_handle device, | |||
89 | 89 | ||
90 | /* Convert and validate the device handle */ | 90 | /* Convert and validate the device handle */ |
91 | 91 | ||
92 | node = acpi_ns_map_handle_to_node(device); | 92 | node = acpi_ns_validate_handle(device); |
93 | if (!node) { | 93 | if (!node) { |
94 | status = AE_BAD_PARAMETER; | 94 | status = AE_BAD_PARAMETER; |
95 | goto unlock_and_exit; | 95 | goto unlock_and_exit; |
@@ -155,7 +155,7 @@ acpi_remove_address_space_handler(acpi_handle device, | |||
155 | 155 | ||
156 | /* Convert and validate the device handle */ | 156 | /* Convert and validate the device handle */ |
157 | 157 | ||
158 | node = acpi_ns_map_handle_to_node(device); | 158 | node = acpi_ns_validate_handle(device); |
159 | if (!node || | 159 | if (!node || |
160 | ((node->type != ACPI_TYPE_DEVICE) && | 160 | ((node->type != ACPI_TYPE_DEVICE) && |
161 | (node->type != ACPI_TYPE_PROCESSOR) && | 161 | (node->type != ACPI_TYPE_PROCESSOR) && |
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c index 2f0114202b05..3c456bd575d0 100644 --- a/drivers/acpi/acpica/exmutex.c +++ b/drivers/acpi/acpica/exmutex.c | |||
@@ -375,6 +375,15 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, | |||
375 | return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); | 375 | return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); |
376 | } | 376 | } |
377 | 377 | ||
378 | /* Must have a valid thread ID */ | ||
379 | |||
380 | if (!walk_state->thread) { | ||
381 | ACPI_ERROR((AE_INFO, | ||
382 | "Cannot release Mutex [%4.4s], null thread info", | ||
383 | acpi_ut_get_node_name(obj_desc->mutex.node))); | ||
384 | return_ACPI_STATUS(AE_AML_INTERNAL); | ||
385 | } | ||
386 | |||
378 | /* | 387 | /* |
379 | * The Mutex is owned, but this thread must be the owner. | 388 | * The Mutex is owned, but this thread must be the owner. |
380 | * Special case for Global Lock, any thread can release | 389 | * Special case for Global Lock, any thread can release |
@@ -392,15 +401,6 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, | |||
392 | return_ACPI_STATUS(AE_AML_NOT_OWNER); | 401 | return_ACPI_STATUS(AE_AML_NOT_OWNER); |
393 | } | 402 | } |
394 | 403 | ||
395 | /* Must have a valid thread ID */ | ||
396 | |||
397 | if (!walk_state->thread) { | ||
398 | ACPI_ERROR((AE_INFO, | ||
399 | "Cannot release Mutex [%4.4s], null thread info", | ||
400 | acpi_ut_get_node_name(obj_desc->mutex.node))); | ||
401 | return_ACPI_STATUS(AE_AML_INTERNAL); | ||
402 | } | ||
403 | |||
404 | /* | 404 | /* |
405 | * The sync level of the mutex must be equal to the current sync level. In | 405 | * The sync level of the mutex must be equal to the current sync level. In |
406 | * other words, the current level means that at least one mutex at that | 406 | * other words, the current level means that at least one mutex at that |
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c index 9c3cdbe2d82a..d622ba770000 100644 --- a/drivers/acpi/acpica/nsaccess.c +++ b/drivers/acpi/acpica/nsaccess.c | |||
@@ -165,7 +165,7 @@ acpi_status acpi_ns_root_initialize(void) | |||
165 | 165 | ||
166 | obj_desc->method.method_flags = | 166 | obj_desc->method.method_flags = |
167 | AML_METHOD_INTERNAL_ONLY; | 167 | AML_METHOD_INTERNAL_ONLY; |
168 | obj_desc->method.implementation = | 168 | obj_desc->method.extra.implementation = |
169 | acpi_ut_osi_implementation; | 169 | acpi_ut_osi_implementation; |
170 | #endif | 170 | #endif |
171 | break; | 171 | break; |
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 2deb986861ca..e37836e27e29 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c | |||
@@ -180,7 +180,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, | |||
180 | return (AE_OK); | 180 | return (AE_OK); |
181 | } | 181 | } |
182 | 182 | ||
183 | this_node = acpi_ns_map_handle_to_node(obj_handle); | 183 | this_node = acpi_ns_validate_handle(obj_handle); |
184 | if (!this_node) { | 184 | if (!this_node) { |
185 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n", | 185 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n", |
186 | obj_handle)); | 186 | obj_handle)); |
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index f771e978c403..af9fe9103734 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c | |||
@@ -381,6 +381,18 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj, | |||
381 | method_obj->method.next_object); | 381 | method_obj->method.next_object); |
382 | type = acpi_ns_get_type(parent_node); | 382 | type = acpi_ns_get_type(parent_node); |
383 | 383 | ||
384 | /* | ||
385 | * Get the region handler and save it in the method object. We may need | ||
386 | * this if an operation region declaration causes a _REG method to be run. | ||
387 | * | ||
388 | * We can't do this in acpi_ps_link_module_code because | ||
389 | * acpi_gbl_root_node->Object is NULL at PASS1. | ||
390 | */ | ||
391 | if ((type == ACPI_TYPE_DEVICE) && parent_node->object) { | ||
392 | method_obj->method.extra.handler = | ||
393 | parent_node->object->device.handler; | ||
394 | } | ||
395 | |||
384 | /* Must clear next_object (acpi_ns_attach_object needs the field) */ | 396 | /* Must clear next_object (acpi_ns_attach_object needs the field) */ |
385 | 397 | ||
386 | method_obj->method.next_object = NULL; | 398 | method_obj->method.next_object = NULL; |
@@ -415,6 +427,12 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj, | |||
415 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, "Executed module-level code at %p\n", | 427 | ACPI_DEBUG_PRINT((ACPI_DB_INIT, "Executed module-level code at %p\n", |
416 | method_obj->method.aml_start)); | 428 | method_obj->method.aml_start)); |
417 | 429 | ||
430 | /* Delete a possible implicit return value (in slack mode) */ | ||
431 | |||
432 | if (info->return_object) { | ||
433 | acpi_ut_remove_reference(info->return_object); | ||
434 | } | ||
435 | |||
418 | /* Detach the temporary method object */ | 436 | /* Detach the temporary method object */ |
419 | 437 | ||
420 | acpi_ns_detach_object(parent_node); | 438 | acpi_ns_detach_object(parent_node); |
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c index af8e6bcee07e..8f9a4875ce26 100644 --- a/drivers/acpi/acpica/nsnames.c +++ b/drivers/acpi/acpica/nsnames.c | |||
@@ -232,7 +232,7 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle, | |||
232 | 232 | ||
233 | ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle); | 233 | ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle); |
234 | 234 | ||
235 | node = acpi_ns_map_handle_to_node(target_handle); | 235 | node = acpi_ns_validate_handle(target_handle); |
236 | if (!node) { | 236 | if (!node) { |
237 | return_ACPI_STATUS(AE_BAD_PARAMETER); | 237 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
238 | } | 238 | } |
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index b05f42903c86..d34fa59548f7 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c | |||
@@ -216,29 +216,38 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, | |||
216 | data->pathname = pathname; | 216 | data->pathname = pathname; |
217 | 217 | ||
218 | /* | 218 | /* |
219 | * Check that the type of the return object is what is expected for | 219 | * Check that the type of the main return object is what is expected |
220 | * this predefined name | 220 | * for this predefined name |
221 | */ | 221 | */ |
222 | status = acpi_ns_check_object_type(data, return_object_ptr, | 222 | status = acpi_ns_check_object_type(data, return_object_ptr, |
223 | predefined->info.expected_btypes, | 223 | predefined->info.expected_btypes, |
224 | ACPI_NOT_PACKAGE_ELEMENT); | 224 | ACPI_NOT_PACKAGE_ELEMENT); |
225 | if (ACPI_FAILURE(status)) { | 225 | if (ACPI_FAILURE(status)) { |
226 | goto check_validation_status; | 226 | goto exit; |
227 | } | 227 | } |
228 | 228 | ||
229 | /* For returned Package objects, check the type of all sub-objects */ | 229 | /* |
230 | 230 | * For returned Package objects, check the type of all sub-objects. | |
231 | if (return_object->common.type == ACPI_TYPE_PACKAGE) { | 231 | * Note: Package may have been newly created by call above. |
232 | */ | ||
233 | if ((*return_object_ptr)->common.type == ACPI_TYPE_PACKAGE) { | ||
232 | status = acpi_ns_check_package(data, return_object_ptr); | 234 | status = acpi_ns_check_package(data, return_object_ptr); |
235 | if (ACPI_FAILURE(status)) { | ||
236 | goto exit; | ||
237 | } | ||
233 | } | 238 | } |
234 | 239 | ||
235 | /* | 240 | /* |
236 | * Perform additional, more complicated repairs on a per-name | 241 | * The return object was OK, or it was successfully repaired above. |
237 | * basis. | 242 | * Now make some additional checks such as verifying that package |
243 | * objects are sorted correctly (if required) or buffer objects have | ||
244 | * the correct data width (bytes vs. dwords). These repairs are | ||
245 | * performed on a per-name basis, i.e., the code is specific to | ||
246 | * particular predefined names. | ||
238 | */ | 247 | */ |
239 | status = acpi_ns_complex_repairs(data, node, status, return_object_ptr); | 248 | status = acpi_ns_complex_repairs(data, node, status, return_object_ptr); |
240 | 249 | ||
241 | check_validation_status: | 250 | exit: |
242 | /* | 251 | /* |
243 | * If the object validation failed or if we successfully repaired one | 252 | * If the object validation failed or if we successfully repaired one |
244 | * or more objects, mark the parent node to suppress further warning | 253 | * or more objects, mark the parent node to suppress further warning |
@@ -427,6 +436,13 @@ acpi_ns_check_package(struct acpi_predefined_data *data, | |||
427 | data->pathname, package->ret_info.type, | 436 | data->pathname, package->ret_info.type, |
428 | return_object->package.count)); | 437 | return_object->package.count)); |
429 | 438 | ||
439 | /* | ||
440 | * For variable-length Packages, we can safely remove all embedded | ||
441 | * and trailing NULL package elements | ||
442 | */ | ||
443 | acpi_ns_remove_null_elements(data, package->ret_info.type, | ||
444 | return_object); | ||
445 | |||
430 | /* Extract package count and elements array */ | 446 | /* Extract package count and elements array */ |
431 | 447 | ||
432 | elements = return_object->package.elements; | 448 | elements = return_object->package.elements; |
@@ -461,11 +477,11 @@ acpi_ns_check_package(struct acpi_predefined_data *data, | |||
461 | if (count < expected_count) { | 477 | if (count < expected_count) { |
462 | goto package_too_small; | 478 | goto package_too_small; |
463 | } else if (count > expected_count) { | 479 | } else if (count > expected_count) { |
464 | ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, | 480 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, |
465 | data->node_flags, | 481 | "%s: Return Package is larger than needed - " |
466 | "Return Package is larger than needed - " | 482 | "found %u, expected %u\n", |
467 | "found %u, expected %u", count, | 483 | data->pathname, count, |
468 | expected_count)); | 484 | expected_count)); |
469 | } | 485 | } |
470 | 486 | ||
471 | /* Validate all elements of the returned package */ | 487 | /* Validate all elements of the returned package */ |
@@ -680,53 +696,18 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, | |||
680 | union acpi_operand_object *sub_package; | 696 | union acpi_operand_object *sub_package; |
681 | union acpi_operand_object **sub_elements; | 697 | union acpi_operand_object **sub_elements; |
682 | acpi_status status; | 698 | acpi_status status; |
683 | u8 non_trailing_null = FALSE; | ||
684 | u32 expected_count; | 699 | u32 expected_count; |
685 | u32 i; | 700 | u32 i; |
686 | u32 j; | 701 | u32 j; |
687 | 702 | ||
688 | /* Validate each sub-Package in the parent Package */ | 703 | /* |
689 | 704 | * Validate each sub-Package in the parent Package | |
705 | * | ||
706 | * NOTE: assumes list of sub-packages contains no NULL elements. | ||
707 | * Any NULL elements should have been removed by earlier call | ||
708 | * to acpi_ns_remove_null_elements. | ||
709 | */ | ||
690 | for (i = 0; i < count; i++) { | 710 | for (i = 0; i < count; i++) { |
691 | /* | ||
692 | * Handling for NULL package elements. For now, we will simply allow | ||
693 | * a parent package with trailing NULL elements. This can happen if | ||
694 | * the package was defined to be longer than the initializer list. | ||
695 | * This is legal as per the ACPI specification. It is often used | ||
696 | * to allow for dynamic initialization of a Package. | ||
697 | * | ||
698 | * A future enhancement may be to simply truncate the package to | ||
699 | * remove the trailing NULL elements. | ||
700 | */ | ||
701 | if (!(*elements)) { | ||
702 | if (!non_trailing_null) { | ||
703 | |||
704 | /* Ensure the remaining elements are all NULL */ | ||
705 | |||
706 | for (j = 1; j < (count - i + 1); j++) { | ||
707 | if (elements[j]) { | ||
708 | non_trailing_null = TRUE; | ||
709 | } | ||
710 | } | ||
711 | |||
712 | if (!non_trailing_null) { | ||
713 | |||
714 | /* Ignore the trailing NULL elements */ | ||
715 | |||
716 | return (AE_OK); | ||
717 | } | ||
718 | } | ||
719 | |||
720 | /* There are trailing non-null elements, issue warning */ | ||
721 | |||
722 | ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, | ||
723 | data->node_flags, | ||
724 | "Found NULL element at package index %u", | ||
725 | i)); | ||
726 | elements++; | ||
727 | continue; | ||
728 | } | ||
729 | |||
730 | sub_package = *elements; | 711 | sub_package = *elements; |
731 | sub_elements = sub_package->package.elements; | 712 | sub_elements = sub_package->package.elements; |
732 | 713 | ||
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index d563f1a564a7..4fd1bdb056b2 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c | |||
@@ -45,13 +45,52 @@ | |||
45 | #include "accommon.h" | 45 | #include "accommon.h" |
46 | #include "acnamesp.h" | 46 | #include "acnamesp.h" |
47 | #include "acinterp.h" | 47 | #include "acinterp.h" |
48 | #include "acpredef.h" | ||
49 | 48 | ||
50 | #define _COMPONENT ACPI_NAMESPACE | 49 | #define _COMPONENT ACPI_NAMESPACE |
51 | ACPI_MODULE_NAME("nsrepair") | 50 | ACPI_MODULE_NAME("nsrepair") |
52 | 51 | ||
53 | /******************************************************************************* | 52 | /******************************************************************************* |
54 | * | 53 | * |
54 | * This module attempts to repair or convert objects returned by the | ||
55 | * predefined methods to an object type that is expected, as per the ACPI | ||
56 | * specification. The need for this code is dictated by the many machines that | ||
57 | * return incorrect types for the standard predefined methods. Performing these | ||
58 | * conversions here, in one place, eliminates the need for individual ACPI | ||
59 | * device drivers to do the same. Note: Most of these conversions are different | ||
60 | * than the internal object conversion routines used for implicit object | ||
61 | * conversion. | ||
62 | * | ||
63 | * The following conversions can be performed as necessary: | ||
64 | * | ||
65 | * Integer -> String | ||
66 | * Integer -> Buffer | ||
67 | * String -> Integer | ||
68 | * String -> Buffer | ||
69 | * Buffer -> Integer | ||
70 | * Buffer -> String | ||
71 | * Buffer -> Package of Integers | ||
72 | * Package -> Package of one Package | ||
73 | * | ||
74 | ******************************************************************************/ | ||
75 | /* Local prototypes */ | ||
76 | static acpi_status | ||
77 | acpi_ns_convert_to_integer(union acpi_operand_object *original_object, | ||
78 | union acpi_operand_object **return_object); | ||
79 | |||
80 | static acpi_status | ||
81 | acpi_ns_convert_to_string(union acpi_operand_object *original_object, | ||
82 | union acpi_operand_object **return_object); | ||
83 | |||
84 | static acpi_status | ||
85 | acpi_ns_convert_to_buffer(union acpi_operand_object *original_object, | ||
86 | union acpi_operand_object **return_object); | ||
87 | |||
88 | static acpi_status | ||
89 | acpi_ns_convert_to_package(union acpi_operand_object *original_object, | ||
90 | union acpi_operand_object **return_object); | ||
91 | |||
92 | /******************************************************************************* | ||
93 | * | ||
55 | * FUNCTION: acpi_ns_repair_object | 94 | * FUNCTION: acpi_ns_repair_object |
56 | * | 95 | * |
57 | * PARAMETERS: Data - Pointer to validation data structure | 96 | * PARAMETERS: Data - Pointer to validation data structure |
@@ -68,6 +107,7 @@ ACPI_MODULE_NAME("nsrepair") | |||
68 | * not expected. | 107 | * not expected. |
69 | * | 108 | * |
70 | ******************************************************************************/ | 109 | ******************************************************************************/ |
110 | |||
71 | acpi_status | 111 | acpi_status |
72 | acpi_ns_repair_object(struct acpi_predefined_data *data, | 112 | acpi_ns_repair_object(struct acpi_predefined_data *data, |
73 | u32 expected_btypes, | 113 | u32 expected_btypes, |
@@ -76,32 +116,206 @@ acpi_ns_repair_object(struct acpi_predefined_data *data, | |||
76 | { | 116 | { |
77 | union acpi_operand_object *return_object = *return_object_ptr; | 117 | union acpi_operand_object *return_object = *return_object_ptr; |
78 | union acpi_operand_object *new_object; | 118 | union acpi_operand_object *new_object; |
79 | acpi_size length; | ||
80 | acpi_status status; | 119 | acpi_status status; |
81 | 120 | ||
121 | ACPI_FUNCTION_NAME(ns_repair_object); | ||
122 | |||
82 | /* | 123 | /* |
83 | * At this point, we know that the type of the returned object was not | 124 | * At this point, we know that the type of the returned object was not |
84 | * one of the expected types for this predefined name. Attempt to | 125 | * one of the expected types for this predefined name. Attempt to |
85 | * repair the object. Only a limited number of repairs are possible. | 126 | * repair the object by converting it to one of the expected object |
127 | * types for this predefined name. | ||
86 | */ | 128 | */ |
87 | switch (return_object->common.type) { | 129 | if (expected_btypes & ACPI_RTYPE_INTEGER) { |
130 | status = acpi_ns_convert_to_integer(return_object, &new_object); | ||
131 | if (ACPI_SUCCESS(status)) { | ||
132 | goto object_repaired; | ||
133 | } | ||
134 | } | ||
135 | if (expected_btypes & ACPI_RTYPE_STRING) { | ||
136 | status = acpi_ns_convert_to_string(return_object, &new_object); | ||
137 | if (ACPI_SUCCESS(status)) { | ||
138 | goto object_repaired; | ||
139 | } | ||
140 | } | ||
141 | if (expected_btypes & ACPI_RTYPE_BUFFER) { | ||
142 | status = acpi_ns_convert_to_buffer(return_object, &new_object); | ||
143 | if (ACPI_SUCCESS(status)) { | ||
144 | goto object_repaired; | ||
145 | } | ||
146 | } | ||
147 | if (expected_btypes & ACPI_RTYPE_PACKAGE) { | ||
148 | status = acpi_ns_convert_to_package(return_object, &new_object); | ||
149 | if (ACPI_SUCCESS(status)) { | ||
150 | goto object_repaired; | ||
151 | } | ||
152 | } | ||
153 | |||
154 | /* We cannot repair this object */ | ||
155 | |||
156 | return (AE_AML_OPERAND_TYPE); | ||
157 | |||
158 | object_repaired: | ||
159 | |||
160 | /* Object was successfully repaired */ | ||
161 | |||
162 | /* | ||
163 | * If the original object is a package element, we need to: | ||
164 | * 1. Set the reference count of the new object to match the | ||
165 | * reference count of the old object. | ||
166 | * 2. Decrement the reference count of the original object. | ||
167 | */ | ||
168 | if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { | ||
169 | new_object->common.reference_count = | ||
170 | return_object->common.reference_count; | ||
171 | |||
172 | if (return_object->common.reference_count > 1) { | ||
173 | return_object->common.reference_count--; | ||
174 | } | ||
175 | |||
176 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, | ||
177 | "%s: Converted %s to expected %s at index %u\n", | ||
178 | data->pathname, | ||
179 | acpi_ut_get_object_type_name(return_object), | ||
180 | acpi_ut_get_object_type_name(new_object), | ||
181 | package_index)); | ||
182 | } else { | ||
183 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, | ||
184 | "%s: Converted %s to expected %s\n", | ||
185 | data->pathname, | ||
186 | acpi_ut_get_object_type_name(return_object), | ||
187 | acpi_ut_get_object_type_name(new_object))); | ||
188 | } | ||
189 | |||
190 | /* Delete old object, install the new return object */ | ||
191 | |||
192 | acpi_ut_remove_reference(return_object); | ||
193 | *return_object_ptr = new_object; | ||
194 | data->flags |= ACPI_OBJECT_REPAIRED; | ||
195 | return (AE_OK); | ||
196 | } | ||
197 | |||
198 | /******************************************************************************* | ||
199 | * | ||
200 | * FUNCTION: acpi_ns_convert_to_integer | ||
201 | * | ||
202 | * PARAMETERS: original_object - Object to be converted | ||
203 | * return_object - Where the new converted object is returned | ||
204 | * | ||
205 | * RETURN: Status. AE_OK if conversion was successful. | ||
206 | * | ||
207 | * DESCRIPTION: Attempt to convert a String/Buffer object to an Integer. | ||
208 | * | ||
209 | ******************************************************************************/ | ||
210 | |||
211 | static acpi_status | ||
212 | acpi_ns_convert_to_integer(union acpi_operand_object *original_object, | ||
213 | union acpi_operand_object **return_object) | ||
214 | { | ||
215 | union acpi_operand_object *new_object; | ||
216 | acpi_status status; | ||
217 | u64 value = 0; | ||
218 | u32 i; | ||
219 | |||
220 | switch (original_object->common.type) { | ||
221 | case ACPI_TYPE_STRING: | ||
222 | |||
223 | /* String-to-Integer conversion */ | ||
224 | |||
225 | status = acpi_ut_strtoul64(original_object->string.pointer, | ||
226 | ACPI_ANY_BASE, &value); | ||
227 | if (ACPI_FAILURE(status)) { | ||
228 | return (status); | ||
229 | } | ||
230 | break; | ||
231 | |||
88 | case ACPI_TYPE_BUFFER: | 232 | case ACPI_TYPE_BUFFER: |
89 | 233 | ||
90 | /* Does the method/object legally return a string? */ | 234 | /* Buffer-to-Integer conversion. Max buffer size is 64 bits. */ |
91 | 235 | ||
92 | if (!(expected_btypes & ACPI_RTYPE_STRING)) { | 236 | if (original_object->buffer.length > 8) { |
93 | return (AE_AML_OPERAND_TYPE); | 237 | return (AE_AML_OPERAND_TYPE); |
94 | } | 238 | } |
95 | 239 | ||
240 | /* Extract each buffer byte to create the integer */ | ||
241 | |||
242 | for (i = 0; i < original_object->buffer.length; i++) { | ||
243 | value |= | ||
244 | ((u64) original_object->buffer. | ||
245 | pointer[i] << (i * 8)); | ||
246 | } | ||
247 | break; | ||
248 | |||
249 | default: | ||
250 | return (AE_AML_OPERAND_TYPE); | ||
251 | } | ||
252 | |||
253 | new_object = acpi_ut_create_integer_object(value); | ||
254 | if (!new_object) { | ||
255 | return (AE_NO_MEMORY); | ||
256 | } | ||
257 | |||
258 | *return_object = new_object; | ||
259 | return (AE_OK); | ||
260 | } | ||
261 | |||
262 | /******************************************************************************* | ||
263 | * | ||
264 | * FUNCTION: acpi_ns_convert_to_string | ||
265 | * | ||
266 | * PARAMETERS: original_object - Object to be converted | ||
267 | * return_object - Where the new converted object is returned | ||
268 | * | ||
269 | * RETURN: Status. AE_OK if conversion was successful. | ||
270 | * | ||
271 | * DESCRIPTION: Attempt to convert a Integer/Buffer object to a String. | ||
272 | * | ||
273 | ******************************************************************************/ | ||
274 | |||
275 | static acpi_status | ||
276 | acpi_ns_convert_to_string(union acpi_operand_object *original_object, | ||
277 | union acpi_operand_object **return_object) | ||
278 | { | ||
279 | union acpi_operand_object *new_object; | ||
280 | acpi_size length; | ||
281 | acpi_status status; | ||
282 | |||
283 | switch (original_object->common.type) { | ||
284 | case ACPI_TYPE_INTEGER: | ||
285 | /* | ||
286 | * Integer-to-String conversion. Commonly, convert | ||
287 | * an integer of value 0 to a NULL string. The last element of | ||
288 | * _BIF and _BIX packages occasionally need this fix. | ||
289 | */ | ||
290 | if (original_object->integer.value == 0) { | ||
291 | |||
292 | /* Allocate a new NULL string object */ | ||
293 | |||
294 | new_object = acpi_ut_create_string_object(0); | ||
295 | if (!new_object) { | ||
296 | return (AE_NO_MEMORY); | ||
297 | } | ||
298 | } else { | ||
299 | status = | ||
300 | acpi_ex_convert_to_string(original_object, | ||
301 | &new_object, | ||
302 | ACPI_IMPLICIT_CONVERT_HEX); | ||
303 | if (ACPI_FAILURE(status)) { | ||
304 | return (status); | ||
305 | } | ||
306 | } | ||
307 | break; | ||
308 | |||
309 | case ACPI_TYPE_BUFFER: | ||
96 | /* | 310 | /* |
97 | * Have a Buffer, expected a String, convert. Use a to_string | 311 | * Buffer-to-String conversion. Use a to_string |
98 | * conversion, no transform performed on the buffer data. The best | 312 | * conversion, no transform performed on the buffer data. The best |
99 | * example of this is the _BIF method, where the string data from | 313 | * example of this is the _BIF method, where the string data from |
100 | * the battery is often (incorrectly) returned as buffer object(s). | 314 | * the battery is often (incorrectly) returned as buffer object(s). |
101 | */ | 315 | */ |
102 | length = 0; | 316 | length = 0; |
103 | while ((length < return_object->buffer.length) && | 317 | while ((length < original_object->buffer.length) && |
104 | (return_object->buffer.pointer[length])) { | 318 | (original_object->buffer.pointer[length])) { |
105 | length++; | 319 | length++; |
106 | } | 320 | } |
107 | 321 | ||
@@ -117,94 +331,176 @@ acpi_ns_repair_object(struct acpi_predefined_data *data, | |||
117 | * terminated at Length+1. | 331 | * terminated at Length+1. |
118 | */ | 332 | */ |
119 | ACPI_MEMCPY(new_object->string.pointer, | 333 | ACPI_MEMCPY(new_object->string.pointer, |
120 | return_object->buffer.pointer, length); | 334 | original_object->buffer.pointer, length); |
121 | break; | 335 | break; |
122 | 336 | ||
337 | default: | ||
338 | return (AE_AML_OPERAND_TYPE); | ||
339 | } | ||
340 | |||
341 | *return_object = new_object; | ||
342 | return (AE_OK); | ||
343 | } | ||
344 | |||
345 | /******************************************************************************* | ||
346 | * | ||
347 | * FUNCTION: acpi_ns_convert_to_buffer | ||
348 | * | ||
349 | * PARAMETERS: original_object - Object to be converted | ||
350 | * return_object - Where the new converted object is returned | ||
351 | * | ||
352 | * RETURN: Status. AE_OK if conversion was successful. | ||
353 | * | ||
354 | * DESCRIPTION: Attempt to convert a Integer/String/Package object to a Buffer. | ||
355 | * | ||
356 | ******************************************************************************/ | ||
357 | |||
358 | static acpi_status | ||
359 | acpi_ns_convert_to_buffer(union acpi_operand_object *original_object, | ||
360 | union acpi_operand_object **return_object) | ||
361 | { | ||
362 | union acpi_operand_object *new_object; | ||
363 | acpi_status status; | ||
364 | union acpi_operand_object **elements; | ||
365 | u32 *dword_buffer; | ||
366 | u32 count; | ||
367 | u32 i; | ||
368 | |||
369 | switch (original_object->common.type) { | ||
123 | case ACPI_TYPE_INTEGER: | 370 | case ACPI_TYPE_INTEGER: |
371 | /* | ||
372 | * Integer-to-Buffer conversion. | ||
373 | * Convert the Integer to a packed-byte buffer. _MAT and other | ||
374 | * objects need this sometimes, if a read has been performed on a | ||
375 | * Field object that is less than or equal to the global integer | ||
376 | * size (32 or 64 bits). | ||
377 | */ | ||
378 | status = | ||
379 | acpi_ex_convert_to_buffer(original_object, &new_object); | ||
380 | if (ACPI_FAILURE(status)) { | ||
381 | return (status); | ||
382 | } | ||
383 | break; | ||
124 | 384 | ||
125 | /* 1) Does the method/object legally return a buffer? */ | 385 | case ACPI_TYPE_STRING: |
126 | 386 | ||
127 | if (expected_btypes & ACPI_RTYPE_BUFFER) { | 387 | /* String-to-Buffer conversion. Simple data copy */ |
128 | /* | 388 | |
129 | * Convert the Integer to a packed-byte buffer. _MAT needs | 389 | new_object = |
130 | * this sometimes, if a read has been performed on a Field | 390 | acpi_ut_create_buffer_object(original_object->string. |
131 | * object that is less than or equal to the global integer | 391 | length); |
132 | * size (32 or 64 bits). | 392 | if (!new_object) { |
133 | */ | 393 | return (AE_NO_MEMORY); |
134 | status = | ||
135 | acpi_ex_convert_to_buffer(return_object, | ||
136 | &new_object); | ||
137 | if (ACPI_FAILURE(status)) { | ||
138 | return (status); | ||
139 | } | ||
140 | } | 394 | } |
141 | 395 | ||
142 | /* 2) Does the method/object legally return a string? */ | 396 | ACPI_MEMCPY(new_object->buffer.pointer, |
397 | original_object->string.pointer, | ||
398 | original_object->string.length); | ||
399 | break; | ||
400 | |||
401 | case ACPI_TYPE_PACKAGE: | ||
402 | /* | ||
403 | * This case is often seen for predefined names that must return a | ||
404 | * Buffer object with multiple DWORD integers within. For example, | ||
405 | * _FDE and _GTM. The Package can be converted to a Buffer. | ||
406 | */ | ||
407 | |||
408 | /* All elements of the Package must be integers */ | ||
143 | 409 | ||
144 | else if (expected_btypes & ACPI_RTYPE_STRING) { | 410 | elements = original_object->package.elements; |
145 | /* | 411 | count = original_object->package.count; |
146 | * The only supported Integer-to-String conversion is to convert | 412 | |
147 | * an integer of value 0 to a NULL string. The last element of | 413 | for (i = 0; i < count; i++) { |
148 | * _BIF and _BIX packages occasionally need this fix. | 414 | if ((!*elements) || |
149 | */ | 415 | ((*elements)->common.type != ACPI_TYPE_INTEGER)) { |
150 | if (return_object->integer.value != 0) { | ||
151 | return (AE_AML_OPERAND_TYPE); | 416 | return (AE_AML_OPERAND_TYPE); |
152 | } | 417 | } |
418 | elements++; | ||
419 | } | ||
153 | 420 | ||
154 | /* Allocate a new NULL string object */ | 421 | /* Create the new buffer object to replace the Package */ |
155 | 422 | ||
156 | new_object = acpi_ut_create_string_object(0); | 423 | new_object = acpi_ut_create_buffer_object(ACPI_MUL_4(count)); |
157 | if (!new_object) { | 424 | if (!new_object) { |
158 | return (AE_NO_MEMORY); | 425 | return (AE_NO_MEMORY); |
159 | } | ||
160 | } else { | ||
161 | return (AE_AML_OPERAND_TYPE); | ||
162 | } | 426 | } |
163 | break; | ||
164 | 427 | ||
165 | default: | 428 | /* Copy the package elements (integers) to the buffer as DWORDs */ |
166 | 429 | ||
167 | /* We cannot repair this object */ | 430 | elements = original_object->package.elements; |
431 | dword_buffer = ACPI_CAST_PTR(u32, new_object->buffer.pointer); | ||
432 | |||
433 | for (i = 0; i < count; i++) { | ||
434 | *dword_buffer = (u32) (*elements)->integer.value; | ||
435 | dword_buffer++; | ||
436 | elements++; | ||
437 | } | ||
438 | break; | ||
168 | 439 | ||
440 | default: | ||
169 | return (AE_AML_OPERAND_TYPE); | 441 | return (AE_AML_OPERAND_TYPE); |
170 | } | 442 | } |
171 | 443 | ||
172 | /* Object was successfully repaired */ | 444 | *return_object = new_object; |
445 | return (AE_OK); | ||
446 | } | ||
173 | 447 | ||
174 | /* | 448 | /******************************************************************************* |
175 | * If the original object is a package element, we need to: | 449 | * |
176 | * 1. Set the reference count of the new object to match the | 450 | * FUNCTION: acpi_ns_convert_to_package |
177 | * reference count of the old object. | 451 | * |
178 | * 2. Decrement the reference count of the original object. | 452 | * PARAMETERS: original_object - Object to be converted |
179 | */ | 453 | * return_object - Where the new converted object is returned |
180 | if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { | 454 | * |
181 | new_object->common.reference_count = | 455 | * RETURN: Status. AE_OK if conversion was successful. |
182 | return_object->common.reference_count; | 456 | * |
457 | * DESCRIPTION: Attempt to convert a Buffer object to a Package. Each byte of | ||
458 | * the buffer is converted to a single integer package element. | ||
459 | * | ||
460 | ******************************************************************************/ | ||
183 | 461 | ||
184 | if (return_object->common.reference_count > 1) { | 462 | static acpi_status |
185 | return_object->common.reference_count--; | 463 | acpi_ns_convert_to_package(union acpi_operand_object *original_object, |
464 | union acpi_operand_object **return_object) | ||
465 | { | ||
466 | union acpi_operand_object *new_object; | ||
467 | union acpi_operand_object **elements; | ||
468 | u32 length; | ||
469 | u8 *buffer; | ||
470 | |||
471 | switch (original_object->common.type) { | ||
472 | case ACPI_TYPE_BUFFER: | ||
473 | |||
474 | /* Buffer-to-Package conversion */ | ||
475 | |||
476 | length = original_object->buffer.length; | ||
477 | new_object = acpi_ut_create_package_object(length); | ||
478 | if (!new_object) { | ||
479 | return (AE_NO_MEMORY); | ||
186 | } | 480 | } |
187 | 481 | ||
188 | ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, | 482 | /* Convert each buffer byte to an integer package element */ |
189 | "Converted %s to expected %s at index %u", | ||
190 | acpi_ut_get_object_type_name | ||
191 | (return_object), | ||
192 | acpi_ut_get_object_type_name(new_object), | ||
193 | package_index)); | ||
194 | } else { | ||
195 | ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, | ||
196 | "Converted %s to expected %s", | ||
197 | acpi_ut_get_object_type_name | ||
198 | (return_object), | ||
199 | acpi_ut_get_object_type_name | ||
200 | (new_object))); | ||
201 | } | ||
202 | 483 | ||
203 | /* Delete old object, install the new return object */ | 484 | elements = new_object->package.elements; |
485 | buffer = original_object->buffer.pointer; | ||
204 | 486 | ||
205 | acpi_ut_remove_reference(return_object); | 487 | while (length--) { |
206 | *return_object_ptr = new_object; | 488 | *elements = |
207 | data->flags |= ACPI_OBJECT_REPAIRED; | 489 | acpi_ut_create_integer_object((u64) *buffer); |
490 | if (!*elements) { | ||
491 | acpi_ut_remove_reference(new_object); | ||
492 | return (AE_NO_MEMORY); | ||
493 | } | ||
494 | elements++; | ||
495 | buffer++; | ||
496 | } | ||
497 | break; | ||
498 | |||
499 | default: | ||
500 | return (AE_AML_OPERAND_TYPE); | ||
501 | } | ||
502 | |||
503 | *return_object = new_object; | ||
208 | return (AE_OK); | 504 | return (AE_OK); |
209 | } | 505 | } |
210 | 506 | ||
@@ -238,6 +534,8 @@ acpi_ns_repair_package_list(struct acpi_predefined_data *data, | |||
238 | { | 534 | { |
239 | union acpi_operand_object *pkg_obj_desc; | 535 | union acpi_operand_object *pkg_obj_desc; |
240 | 536 | ||
537 | ACPI_FUNCTION_NAME(ns_repair_package_list); | ||
538 | |||
241 | /* | 539 | /* |
242 | * Create the new outer package and populate it. The new package will | 540 | * Create the new outer package and populate it. The new package will |
243 | * have a single element, the lone subpackage. | 541 | * have a single element, the lone subpackage. |
@@ -254,8 +552,9 @@ acpi_ns_repair_package_list(struct acpi_predefined_data *data, | |||
254 | *obj_desc_ptr = pkg_obj_desc; | 552 | *obj_desc_ptr = pkg_obj_desc; |
255 | data->flags |= ACPI_OBJECT_REPAIRED; | 553 | data->flags |= ACPI_OBJECT_REPAIRED; |
256 | 554 | ||
257 | ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, | 555 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, |
258 | "Repaired Incorrectly formed Package")); | 556 | "%s: Repaired incorrectly formed Package\n", |
557 | data->pathname)); | ||
259 | 558 | ||
260 | return (AE_OK); | 559 | return (AE_OK); |
261 | } | 560 | } |
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index d07b68613818..f13691c1cca5 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c | |||
@@ -45,6 +45,7 @@ | |||
45 | #include <acpi/acpi.h> | 45 | #include <acpi/acpi.h> |
46 | #include "accommon.h" | 46 | #include "accommon.h" |
47 | #include "acnamesp.h" | 47 | #include "acnamesp.h" |
48 | #include "acpredef.h" | ||
48 | 49 | ||
49 | #define _COMPONENT ACPI_NAMESPACE | 50 | #define _COMPONENT ACPI_NAMESPACE |
50 | ACPI_MODULE_NAME("nsrepair2") | 51 | ACPI_MODULE_NAME("nsrepair2") |
@@ -74,6 +75,10 @@ acpi_ns_repair_ALR(struct acpi_predefined_data *data, | |||
74 | union acpi_operand_object **return_object_ptr); | 75 | union acpi_operand_object **return_object_ptr); |
75 | 76 | ||
76 | static acpi_status | 77 | static acpi_status |
78 | acpi_ns_repair_FDE(struct acpi_predefined_data *data, | ||
79 | union acpi_operand_object **return_object_ptr); | ||
80 | |||
81 | static acpi_status | ||
77 | acpi_ns_repair_PSS(struct acpi_predefined_data *data, | 82 | acpi_ns_repair_PSS(struct acpi_predefined_data *data, |
78 | union acpi_operand_object **return_object_ptr); | 83 | union acpi_operand_object **return_object_ptr); |
79 | 84 | ||
@@ -89,9 +94,6 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, | |||
89 | u8 sort_direction, char *sort_key_name); | 94 | u8 sort_direction, char *sort_key_name); |
90 | 95 | ||
91 | static acpi_status | 96 | static acpi_status |
92 | acpi_ns_remove_null_elements(union acpi_operand_object *package); | ||
93 | |||
94 | static acpi_status | ||
95 | acpi_ns_sort_list(union acpi_operand_object **elements, | 97 | acpi_ns_sort_list(union acpi_operand_object **elements, |
96 | u32 count, u32 index, u8 sort_direction); | 98 | u32 count, u32 index, u8 sort_direction); |
97 | 99 | ||
@@ -104,17 +106,27 @@ acpi_ns_sort_list(union acpi_operand_object **elements, | |||
104 | * This table contains the names of the predefined methods for which we can | 106 | * This table contains the names of the predefined methods for which we can |
105 | * perform more complex repairs. | 107 | * perform more complex repairs. |
106 | * | 108 | * |
107 | * _ALR: Sort the list ascending by ambient_illuminance if necessary | 109 | * As necessary: |
108 | * _PSS: Sort the list descending by Power if necessary | 110 | * |
109 | * _TSS: Sort the list descending by Power if necessary | 111 | * _ALR: Sort the list ascending by ambient_illuminance |
112 | * _FDE: Convert Buffer of BYTEs to a Buffer of DWORDs | ||
113 | * _GTM: Convert Buffer of BYTEs to a Buffer of DWORDs | ||
114 | * _PSS: Sort the list descending by Power | ||
115 | * _TSS: Sort the list descending by Power | ||
110 | */ | 116 | */ |
111 | static const struct acpi_repair_info acpi_ns_repairable_names[] = { | 117 | static const struct acpi_repair_info acpi_ns_repairable_names[] = { |
112 | {"_ALR", acpi_ns_repair_ALR}, | 118 | {"_ALR", acpi_ns_repair_ALR}, |
119 | {"_FDE", acpi_ns_repair_FDE}, | ||
120 | {"_GTM", acpi_ns_repair_FDE}, /* _GTM has same repair as _FDE */ | ||
113 | {"_PSS", acpi_ns_repair_PSS}, | 121 | {"_PSS", acpi_ns_repair_PSS}, |
114 | {"_TSS", acpi_ns_repair_TSS}, | 122 | {"_TSS", acpi_ns_repair_TSS}, |
115 | {{0, 0, 0, 0}, NULL} /* Table terminator */ | 123 | {{0, 0, 0, 0}, NULL} /* Table terminator */ |
116 | }; | 124 | }; |
117 | 125 | ||
126 | #define ACPI_FDE_FIELD_COUNT 5 | ||
127 | #define ACPI_FDE_BYTE_BUFFER_SIZE 5 | ||
128 | #define ACPI_FDE_DWORD_BUFFER_SIZE (ACPI_FDE_FIELD_COUNT * sizeof (u32)) | ||
129 | |||
118 | /****************************************************************************** | 130 | /****************************************************************************** |
119 | * | 131 | * |
120 | * FUNCTION: acpi_ns_complex_repairs | 132 | * FUNCTION: acpi_ns_complex_repairs |
@@ -215,6 +227,94 @@ acpi_ns_repair_ALR(struct acpi_predefined_data *data, | |||
215 | 227 | ||
216 | /****************************************************************************** | 228 | /****************************************************************************** |
217 | * | 229 | * |
230 | * FUNCTION: acpi_ns_repair_FDE | ||
231 | * | ||
232 | * PARAMETERS: Data - Pointer to validation data structure | ||
233 | * return_object_ptr - Pointer to the object returned from the | ||
234 | * evaluation of a method or object | ||
235 | * | ||
236 | * RETURN: Status. AE_OK if object is OK or was repaired successfully | ||
237 | * | ||
238 | * DESCRIPTION: Repair for the _FDE and _GTM objects. The expected return | ||
239 | * value is a Buffer of 5 DWORDs. This function repairs a common | ||
240 | * problem where the return value is a Buffer of BYTEs, not | ||
241 | * DWORDs. | ||
242 | * | ||
243 | *****************************************************************************/ | ||
244 | |||
245 | static acpi_status | ||
246 | acpi_ns_repair_FDE(struct acpi_predefined_data *data, | ||
247 | union acpi_operand_object **return_object_ptr) | ||
248 | { | ||
249 | union acpi_operand_object *return_object = *return_object_ptr; | ||
250 | union acpi_operand_object *buffer_object; | ||
251 | u8 *byte_buffer; | ||
252 | u32 *dword_buffer; | ||
253 | u32 i; | ||
254 | |||
255 | ACPI_FUNCTION_NAME(ns_repair_FDE); | ||
256 | |||
257 | switch (return_object->common.type) { | ||
258 | case ACPI_TYPE_BUFFER: | ||
259 | |||
260 | /* This is the expected type. Length should be (at least) 5 DWORDs */ | ||
261 | |||
262 | if (return_object->buffer.length >= ACPI_FDE_DWORD_BUFFER_SIZE) { | ||
263 | return (AE_OK); | ||
264 | } | ||
265 | |||
266 | /* We can only repair if we have exactly 5 BYTEs */ | ||
267 | |||
268 | if (return_object->buffer.length != ACPI_FDE_BYTE_BUFFER_SIZE) { | ||
269 | ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, | ||
270 | data->node_flags, | ||
271 | "Incorrect return buffer length %u, expected %u", | ||
272 | return_object->buffer.length, | ||
273 | ACPI_FDE_DWORD_BUFFER_SIZE)); | ||
274 | |||
275 | return (AE_AML_OPERAND_TYPE); | ||
276 | } | ||
277 | |||
278 | /* Create the new (larger) buffer object */ | ||
279 | |||
280 | buffer_object = | ||
281 | acpi_ut_create_buffer_object(ACPI_FDE_DWORD_BUFFER_SIZE); | ||
282 | if (!buffer_object) { | ||
283 | return (AE_NO_MEMORY); | ||
284 | } | ||
285 | |||
286 | /* Expand each byte to a DWORD */ | ||
287 | |||
288 | byte_buffer = return_object->buffer.pointer; | ||
289 | dword_buffer = | ||
290 | ACPI_CAST_PTR(u32, buffer_object->buffer.pointer); | ||
291 | |||
292 | for (i = 0; i < ACPI_FDE_FIELD_COUNT; i++) { | ||
293 | *dword_buffer = (u32) *byte_buffer; | ||
294 | dword_buffer++; | ||
295 | byte_buffer++; | ||
296 | } | ||
297 | |||
298 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, | ||
299 | "%s Expanded Byte Buffer to expected DWord Buffer\n", | ||
300 | data->pathname)); | ||
301 | break; | ||
302 | |||
303 | default: | ||
304 | return (AE_AML_OPERAND_TYPE); | ||
305 | } | ||
306 | |||
307 | /* Delete the original return object, return the new buffer object */ | ||
308 | |||
309 | acpi_ut_remove_reference(return_object); | ||
310 | *return_object_ptr = buffer_object; | ||
311 | |||
312 | data->flags |= ACPI_OBJECT_REPAIRED; | ||
313 | return (AE_OK); | ||
314 | } | ||
315 | |||
316 | /****************************************************************************** | ||
317 | * | ||
218 | * FUNCTION: acpi_ns_repair_TSS | 318 | * FUNCTION: acpi_ns_repair_TSS |
219 | * | 319 | * |
220 | * PARAMETERS: Data - Pointer to validation data structure | 320 | * PARAMETERS: Data - Pointer to validation data structure |
@@ -345,6 +445,8 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, | |||
345 | u32 previous_value; | 445 | u32 previous_value; |
346 | acpi_status status; | 446 | acpi_status status; |
347 | 447 | ||
448 | ACPI_FUNCTION_NAME(ns_check_sorted_list); | ||
449 | |||
348 | /* The top-level object must be a package */ | 450 | /* The top-level object must be a package */ |
349 | 451 | ||
350 | if (return_object->common.type != ACPI_TYPE_PACKAGE) { | 452 | if (return_object->common.type != ACPI_TYPE_PACKAGE) { |
@@ -352,24 +454,10 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, | |||
352 | } | 454 | } |
353 | 455 | ||
354 | /* | 456 | /* |
355 | * Detect any NULL package elements and remove them from the | 457 | * NOTE: assumes list of sub-packages contains no NULL elements. |
356 | * package. | 458 | * Any NULL elements should have been removed by earlier call |
357 | * | 459 | * to acpi_ns_remove_null_elements. |
358 | * TBD: We may want to do this for all predefined names that | ||
359 | * return a variable-length package of packages. | ||
360 | */ | 460 | */ |
361 | status = acpi_ns_remove_null_elements(return_object); | ||
362 | if (status == AE_NULL_ENTRY) { | ||
363 | ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, | ||
364 | "NULL elements removed from package")); | ||
365 | |||
366 | /* Exit if package is now zero length */ | ||
367 | |||
368 | if (!return_object->package.count) { | ||
369 | return (AE_NULL_ENTRY); | ||
370 | } | ||
371 | } | ||
372 | |||
373 | outer_elements = return_object->package.elements; | 461 | outer_elements = return_object->package.elements; |
374 | outer_element_count = return_object->package.count; | 462 | outer_element_count = return_object->package.count; |
375 | if (!outer_element_count) { | 463 | if (!outer_element_count) { |
@@ -422,10 +510,9 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, | |||
422 | 510 | ||
423 | data->flags |= ACPI_OBJECT_REPAIRED; | 511 | data->flags |= ACPI_OBJECT_REPAIRED; |
424 | 512 | ||
425 | ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, | 513 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, |
426 | data->node_flags, | 514 | "%s: Repaired unsorted list - now sorted by %s\n", |
427 | "Repaired unsorted list - now sorted by %s", | 515 | data->pathname, sort_key_name)); |
428 | sort_key_name)); | ||
429 | return (AE_OK); | 516 | return (AE_OK); |
430 | } | 517 | } |
431 | 518 | ||
@@ -440,36 +527,63 @@ acpi_ns_check_sorted_list(struct acpi_predefined_data *data, | |||
440 | * | 527 | * |
441 | * FUNCTION: acpi_ns_remove_null_elements | 528 | * FUNCTION: acpi_ns_remove_null_elements |
442 | * | 529 | * |
443 | * PARAMETERS: obj_desc - A Package object | 530 | * PARAMETERS: Data - Pointer to validation data structure |
531 | * package_type - An acpi_return_package_types value | ||
532 | * obj_desc - A Package object | ||
444 | * | 533 | * |
445 | * RETURN: Status. AE_NULL_ENTRY means that one or more elements were | 534 | * RETURN: None. |
446 | * removed. | ||
447 | * | 535 | * |
448 | * DESCRIPTION: Remove all NULL package elements and update the package count. | 536 | * DESCRIPTION: Remove all NULL package elements from packages that contain |
537 | * a variable number of sub-packages. | ||
449 | * | 538 | * |
450 | *****************************************************************************/ | 539 | *****************************************************************************/ |
451 | 540 | ||
452 | static acpi_status | 541 | void |
453 | acpi_ns_remove_null_elements(union acpi_operand_object *obj_desc) | 542 | acpi_ns_remove_null_elements(struct acpi_predefined_data *data, |
543 | u8 package_type, | ||
544 | union acpi_operand_object *obj_desc) | ||
454 | { | 545 | { |
455 | union acpi_operand_object **source; | 546 | union acpi_operand_object **source; |
456 | union acpi_operand_object **dest; | 547 | union acpi_operand_object **dest; |
457 | acpi_status status = AE_OK; | ||
458 | u32 count; | 548 | u32 count; |
459 | u32 new_count; | 549 | u32 new_count; |
460 | u32 i; | 550 | u32 i; |
461 | 551 | ||
552 | ACPI_FUNCTION_NAME(ns_remove_null_elements); | ||
553 | |||
554 | /* | ||
555 | * PTYPE1 packages contain no subpackages. | ||
556 | * PTYPE2 packages contain a variable number of sub-packages. We can | ||
557 | * safely remove all NULL elements from the PTYPE2 packages. | ||
558 | */ | ||
559 | switch (package_type) { | ||
560 | case ACPI_PTYPE1_FIXED: | ||
561 | case ACPI_PTYPE1_VAR: | ||
562 | case ACPI_PTYPE1_OPTION: | ||
563 | return; | ||
564 | |||
565 | case ACPI_PTYPE2: | ||
566 | case ACPI_PTYPE2_COUNT: | ||
567 | case ACPI_PTYPE2_PKG_COUNT: | ||
568 | case ACPI_PTYPE2_FIXED: | ||
569 | case ACPI_PTYPE2_MIN: | ||
570 | case ACPI_PTYPE2_REV_FIXED: | ||
571 | break; | ||
572 | |||
573 | default: | ||
574 | return; | ||
575 | } | ||
576 | |||
462 | count = obj_desc->package.count; | 577 | count = obj_desc->package.count; |
463 | new_count = count; | 578 | new_count = count; |
464 | 579 | ||
465 | source = obj_desc->package.elements; | 580 | source = obj_desc->package.elements; |
466 | dest = source; | 581 | dest = source; |
467 | 582 | ||
468 | /* Examine all elements of the package object */ | 583 | /* Examine all elements of the package object, remove nulls */ |
469 | 584 | ||
470 | for (i = 0; i < count; i++) { | 585 | for (i = 0; i < count; i++) { |
471 | if (!*source) { | 586 | if (!*source) { |
472 | status = AE_NULL_ENTRY; | ||
473 | new_count--; | 587 | new_count--; |
474 | } else { | 588 | } else { |
475 | *dest = *source; | 589 | *dest = *source; |
@@ -478,15 +592,18 @@ acpi_ns_remove_null_elements(union acpi_operand_object *obj_desc) | |||
478 | source++; | 592 | source++; |
479 | } | 593 | } |
480 | 594 | ||
481 | if (status == AE_NULL_ENTRY) { | 595 | /* Update parent package if any null elements were removed */ |
596 | |||
597 | if (new_count < count) { | ||
598 | ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, | ||
599 | "%s: Found and removed %u NULL elements\n", | ||
600 | data->pathname, (count - new_count))); | ||
482 | 601 | ||
483 | /* NULL terminate list and update the package count */ | 602 | /* NULL terminate list and update the package count */ |
484 | 603 | ||
485 | *dest = NULL; | 604 | *dest = NULL; |
486 | obj_desc->package.count = new_count; | 605 | obj_desc->package.count = new_count; |
487 | } | 606 | } |
488 | |||
489 | return (status); | ||
490 | } | 607 | } |
491 | 608 | ||
492 | /****************************************************************************** | 609 | /****************************************************************************** |
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index ea55ab4f9849..47d91e668a1b 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c | |||
@@ -671,24 +671,25 @@ acpi_ns_externalize_name(u32 internal_name_length, | |||
671 | 671 | ||
672 | /******************************************************************************* | 672 | /******************************************************************************* |
673 | * | 673 | * |
674 | * FUNCTION: acpi_ns_map_handle_to_node | 674 | * FUNCTION: acpi_ns_validate_handle |
675 | * | 675 | * |
676 | * PARAMETERS: Handle - Handle to be converted to an Node | 676 | * PARAMETERS: Handle - Handle to be validated and typecast to a |
677 | * namespace node. | ||
677 | * | 678 | * |
678 | * RETURN: A Name table entry pointer | 679 | * RETURN: A pointer to a namespace node |
679 | * | 680 | * |
680 | * DESCRIPTION: Convert a namespace handle to a real Node | 681 | * DESCRIPTION: Convert a namespace handle to a namespace node. Handles special |
682 | * cases for the root node. | ||
681 | * | 683 | * |
682 | * Note: Real integer handles would allow for more verification | 684 | * NOTE: Real integer handles would allow for more verification |
683 | * and keep all pointers within this subsystem - however this introduces | 685 | * and keep all pointers within this subsystem - however this introduces |
684 | * more (and perhaps unnecessary) overhead. | 686 | * more overhead and has not been necessary to this point. Drivers |
685 | * | 687 | * holding handles are typically notified before a node becomes invalid |
686 | * The current implemenation is basically a placeholder until such time comes | 688 | * due to a table unload. |
687 | * that it is needed. | ||
688 | * | 689 | * |
689 | ******************************************************************************/ | 690 | ******************************************************************************/ |
690 | 691 | ||
691 | struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) | 692 | struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle) |
692 | { | 693 | { |
693 | 694 | ||
694 | ACPI_FUNCTION_ENTRY(); | 695 | ACPI_FUNCTION_ENTRY(); |
@@ -710,42 +711,6 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) | |||
710 | 711 | ||
711 | /******************************************************************************* | 712 | /******************************************************************************* |
712 | * | 713 | * |
713 | * FUNCTION: acpi_ns_convert_entry_to_handle | ||
714 | * | ||
715 | * PARAMETERS: Node - Node to be converted to a Handle | ||
716 | * | ||
717 | * RETURN: A user handle | ||
718 | * | ||
719 | * DESCRIPTION: Convert a real Node to a namespace handle | ||
720 | * | ||
721 | ******************************************************************************/ | ||
722 | |||
723 | acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node) | ||
724 | { | ||
725 | |||
726 | /* | ||
727 | * Simple implementation for now; | ||
728 | */ | ||
729 | return ((acpi_handle) node); | ||
730 | |||
731 | /* Example future implementation --------------------- | ||
732 | |||
733 | if (!Node) | ||
734 | { | ||
735 | return (NULL); | ||
736 | } | ||
737 | |||
738 | if (Node == acpi_gbl_root_node) | ||
739 | { | ||
740 | return (ACPI_ROOT_OBJECT); | ||
741 | } | ||
742 | |||
743 | return ((acpi_handle) Node); | ||
744 | ------------------------------------------------------*/ | ||
745 | } | ||
746 | |||
747 | /******************************************************************************* | ||
748 | * | ||
749 | * FUNCTION: acpi_ns_terminate | 714 | * FUNCTION: acpi_ns_terminate |
750 | * | 715 | * |
751 | * PARAMETERS: none | 716 | * PARAMETERS: none |
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index f2bd1da77001..f0c0892bc7e5 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c | |||
@@ -190,7 +190,7 @@ acpi_evaluate_object(acpi_handle handle, | |||
190 | 190 | ||
191 | /* Convert and validate the device handle */ | 191 | /* Convert and validate the device handle */ |
192 | 192 | ||
193 | info->prefix_node = acpi_ns_map_handle_to_node(handle); | 193 | info->prefix_node = acpi_ns_validate_handle(handle); |
194 | if (!info->prefix_node) { | 194 | if (!info->prefix_node) { |
195 | status = AE_BAD_PARAMETER; | 195 | status = AE_BAD_PARAMETER; |
196 | goto cleanup; | 196 | goto cleanup; |
@@ -552,7 +552,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, | |||
552 | return (status); | 552 | return (status); |
553 | } | 553 | } |
554 | 554 | ||
555 | node = acpi_ns_map_handle_to_node(obj_handle); | 555 | node = acpi_ns_validate_handle(obj_handle); |
556 | status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | 556 | status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
557 | if (ACPI_FAILURE(status)) { | 557 | if (ACPI_FAILURE(status)) { |
558 | return (status); | 558 | return (status); |
@@ -729,7 +729,7 @@ acpi_attach_data(acpi_handle obj_handle, | |||
729 | 729 | ||
730 | /* Convert and validate the handle */ | 730 | /* Convert and validate the handle */ |
731 | 731 | ||
732 | node = acpi_ns_map_handle_to_node(obj_handle); | 732 | node = acpi_ns_validate_handle(obj_handle); |
733 | if (!node) { | 733 | if (!node) { |
734 | status = AE_BAD_PARAMETER; | 734 | status = AE_BAD_PARAMETER; |
735 | goto unlock_and_exit; | 735 | goto unlock_and_exit; |
@@ -775,7 +775,7 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) | |||
775 | 775 | ||
776 | /* Convert and validate the handle */ | 776 | /* Convert and validate the handle */ |
777 | 777 | ||
778 | node = acpi_ns_map_handle_to_node(obj_handle); | 778 | node = acpi_ns_validate_handle(obj_handle); |
779 | if (!node) { | 779 | if (!node) { |
780 | status = AE_BAD_PARAMETER; | 780 | status = AE_BAD_PARAMETER; |
781 | goto unlock_and_exit; | 781 | goto unlock_and_exit; |
@@ -822,7 +822,7 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) | |||
822 | 822 | ||
823 | /* Convert and validate the handle */ | 823 | /* Convert and validate the handle */ |
824 | 824 | ||
825 | node = acpi_ns_map_handle_to_node(obj_handle); | 825 | node = acpi_ns_validate_handle(obj_handle); |
826 | if (!node) { | 826 | if (!node) { |
827 | status = AE_BAD_PARAMETER; | 827 | status = AE_BAD_PARAMETER; |
828 | goto unlock_and_exit; | 828 | goto unlock_and_exit; |
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index ddc84af6336e..e611dd961b20 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c | |||
@@ -93,7 +93,7 @@ acpi_get_handle(acpi_handle parent, | |||
93 | /* Convert a parent handle to a prefix node */ | 93 | /* Convert a parent handle to a prefix node */ |
94 | 94 | ||
95 | if (parent) { | 95 | if (parent) { |
96 | prefix_node = acpi_ns_map_handle_to_node(parent); | 96 | prefix_node = acpi_ns_validate_handle(parent); |
97 | if (!prefix_node) { | 97 | if (!prefix_node) { |
98 | return (AE_BAD_PARAMETER); | 98 | return (AE_BAD_PARAMETER); |
99 | } | 99 | } |
@@ -114,7 +114,7 @@ acpi_get_handle(acpi_handle parent, | |||
114 | 114 | ||
115 | if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) { | 115 | if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) { |
116 | *ret_handle = | 116 | *ret_handle = |
117 | acpi_ns_convert_entry_to_handle(acpi_gbl_root_node); | 117 | ACPI_CAST_PTR(acpi_handle, acpi_gbl_root_node); |
118 | return (AE_OK); | 118 | return (AE_OK); |
119 | } | 119 | } |
120 | } else if (!prefix_node) { | 120 | } else if (!prefix_node) { |
@@ -129,7 +129,7 @@ acpi_get_handle(acpi_handle parent, | |||
129 | status = | 129 | status = |
130 | acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node); | 130 | acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node); |
131 | if (ACPI_SUCCESS(status)) { | 131 | if (ACPI_SUCCESS(status)) { |
132 | *ret_handle = acpi_ns_convert_entry_to_handle(node); | 132 | *ret_handle = ACPI_CAST_PTR(acpi_handle, node); |
133 | } | 133 | } |
134 | 134 | ||
135 | return (status); | 135 | return (status); |
@@ -186,7 +186,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) | |||
186 | return (status); | 186 | return (status); |
187 | } | 187 | } |
188 | 188 | ||
189 | node = acpi_ns_map_handle_to_node(handle); | 189 | node = acpi_ns_validate_handle(handle); |
190 | if (!node) { | 190 | if (!node) { |
191 | status = AE_BAD_PARAMETER; | 191 | status = AE_BAD_PARAMETER; |
192 | goto unlock_and_exit; | 192 | goto unlock_and_exit; |
@@ -291,7 +291,7 @@ acpi_get_object_info(acpi_handle handle, | |||
291 | goto cleanup; | 291 | goto cleanup; |
292 | } | 292 | } |
293 | 293 | ||
294 | node = acpi_ns_map_handle_to_node(handle); | 294 | node = acpi_ns_validate_handle(handle); |
295 | if (!node) { | 295 | if (!node) { |
296 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | 296 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
297 | return (AE_BAD_PARAMETER); | 297 | return (AE_BAD_PARAMETER); |
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c index 4071bad4458e..0cc6ba01a495 100644 --- a/drivers/acpi/acpica/nsxfobj.c +++ b/drivers/acpi/acpica/nsxfobj.c | |||
@@ -79,7 +79,7 @@ acpi_status acpi_get_id(acpi_handle handle, acpi_owner_id * ret_id) | |||
79 | 79 | ||
80 | /* Convert and validate the handle */ | 80 | /* Convert and validate the handle */ |
81 | 81 | ||
82 | node = acpi_ns_map_handle_to_node(handle); | 82 | node = acpi_ns_validate_handle(handle); |
83 | if (!node) { | 83 | if (!node) { |
84 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | 84 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
85 | return (AE_BAD_PARAMETER); | 85 | return (AE_BAD_PARAMETER); |
@@ -132,7 +132,7 @@ acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type) | |||
132 | 132 | ||
133 | /* Convert and validate the handle */ | 133 | /* Convert and validate the handle */ |
134 | 134 | ||
135 | node = acpi_ns_map_handle_to_node(handle); | 135 | node = acpi_ns_validate_handle(handle); |
136 | if (!node) { | 136 | if (!node) { |
137 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); | 137 | (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); |
138 | return (AE_BAD_PARAMETER); | 138 | return (AE_BAD_PARAMETER); |
@@ -182,7 +182,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) | |||
182 | 182 | ||
183 | /* Convert and validate the handle */ | 183 | /* Convert and validate the handle */ |
184 | 184 | ||
185 | node = acpi_ns_map_handle_to_node(handle); | 185 | node = acpi_ns_validate_handle(handle); |
186 | if (!node) { | 186 | if (!node) { |
187 | status = AE_BAD_PARAMETER; | 187 | status = AE_BAD_PARAMETER; |
188 | goto unlock_and_exit; | 188 | goto unlock_and_exit; |
@@ -191,7 +191,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) | |||
191 | /* Get the parent entry */ | 191 | /* Get the parent entry */ |
192 | 192 | ||
193 | parent_node = acpi_ns_get_parent_node(node); | 193 | parent_node = acpi_ns_get_parent_node(node); |
194 | *ret_handle = acpi_ns_convert_entry_to_handle(parent_node); | 194 | *ret_handle = ACPI_CAST_PTR(acpi_handle, parent_node); |
195 | 195 | ||
196 | /* Return exception if parent is null */ | 196 | /* Return exception if parent is null */ |
197 | 197 | ||
@@ -251,7 +251,7 @@ acpi_get_next_object(acpi_object_type type, | |||
251 | 251 | ||
252 | /* Start search at the beginning of the specified scope */ | 252 | /* Start search at the beginning of the specified scope */ |
253 | 253 | ||
254 | parent_node = acpi_ns_map_handle_to_node(parent); | 254 | parent_node = acpi_ns_validate_handle(parent); |
255 | if (!parent_node) { | 255 | if (!parent_node) { |
256 | status = AE_BAD_PARAMETER; | 256 | status = AE_BAD_PARAMETER; |
257 | goto unlock_and_exit; | 257 | goto unlock_and_exit; |
@@ -260,7 +260,7 @@ acpi_get_next_object(acpi_object_type type, | |||
260 | /* Non-null handle, ignore the parent */ | 260 | /* Non-null handle, ignore the parent */ |
261 | /* Convert and validate the handle */ | 261 | /* Convert and validate the handle */ |
262 | 262 | ||
263 | child_node = acpi_ns_map_handle_to_node(child); | 263 | child_node = acpi_ns_validate_handle(child); |
264 | if (!child_node) { | 264 | if (!child_node) { |
265 | status = AE_BAD_PARAMETER; | 265 | status = AE_BAD_PARAMETER; |
266 | goto unlock_and_exit; | 266 | goto unlock_and_exit; |
@@ -276,7 +276,7 @@ acpi_get_next_object(acpi_object_type type, | |||
276 | } | 276 | } |
277 | 277 | ||
278 | if (ret_handle) { | 278 | if (ret_handle) { |
279 | *ret_handle = acpi_ns_convert_entry_to_handle(node); | 279 | *ret_handle = ACPI_CAST_PTR(acpi_handle, node); |
280 | } | 280 | } |
281 | 281 | ||
282 | unlock_and_exit: | 282 | unlock_and_exit: |
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index 12934ad6da8e..d0c1b91eb8ca 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c | |||
@@ -287,7 +287,8 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) | |||
287 | /* Invoke an internal method if necessary */ | 287 | /* Invoke an internal method if necessary */ |
288 | 288 | ||
289 | if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { | 289 | if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { |
290 | status = info->obj_desc->method.implementation(walk_state); | 290 | status = |
291 | info->obj_desc->method.extra.implementation(walk_state); | ||
291 | info->return_object = walk_state->return_desc; | 292 | info->return_object = walk_state->return_desc; |
292 | 293 | ||
293 | /* Cleanup states */ | 294 | /* Cleanup states */ |
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index 395212bcd19b..f27feb4772f6 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c | |||
@@ -104,7 +104,7 @@ acpi_rs_validate_parameters(acpi_handle device_handle, | |||
104 | return_ACPI_STATUS(AE_BAD_PARAMETER); | 104 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
105 | } | 105 | } |
106 | 106 | ||
107 | node = acpi_ns_map_handle_to_node(device_handle); | 107 | node = acpi_ns_validate_handle(device_handle); |
108 | if (!node) { | 108 | if (!node) { |
109 | return_ACPI_STATUS(AE_BAD_PARAMETER); | 109 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
110 | } | 110 | } |
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c index 0f0c64bf8ac9..f857c5efb79f 100644 --- a/drivers/acpi/acpica/utcopy.c +++ b/drivers/acpi/acpica/utcopy.c | |||
@@ -323,11 +323,11 @@ acpi_ut_copy_ielement_to_eelement(u8 object_type, | |||
323 | * RETURN: Status | 323 | * RETURN: Status |
324 | * | 324 | * |
325 | * DESCRIPTION: This function is called to place a package object in a user | 325 | * DESCRIPTION: This function is called to place a package object in a user |
326 | * buffer. A package object by definition contains other objects. | 326 | * buffer. A package object by definition contains other objects. |
327 | * | 327 | * |
328 | * The buffer is assumed to have sufficient space for the object. | 328 | * The buffer is assumed to have sufficient space for the object. |
329 | * The caller must have verified the buffer length needed using the | 329 | * The caller must have verified the buffer length needed using |
330 | * acpi_ut_get_object_size function before calling this function. | 330 | * the acpi_ut_get_object_size function before calling this function. |
331 | * | 331 | * |
332 | ******************************************************************************/ | 332 | ******************************************************************************/ |
333 | 333 | ||
@@ -382,12 +382,12 @@ acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object, | |||
382 | * FUNCTION: acpi_ut_copy_iobject_to_eobject | 382 | * FUNCTION: acpi_ut_copy_iobject_to_eobject |
383 | * | 383 | * |
384 | * PARAMETERS: internal_object - The internal object to be converted | 384 | * PARAMETERS: internal_object - The internal object to be converted |
385 | * buffer_ptr - Where the object is returned | 385 | * ret_buffer - Where the object is returned |
386 | * | 386 | * |
387 | * RETURN: Status | 387 | * RETURN: Status |
388 | * | 388 | * |
389 | * DESCRIPTION: This function is called to build an API object to be returned to | 389 | * DESCRIPTION: This function is called to build an API object to be returned |
390 | * the caller. | 390 | * to the caller. |
391 | * | 391 | * |
392 | ******************************************************************************/ | 392 | ******************************************************************************/ |
393 | 393 | ||
@@ -626,7 +626,7 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_object *external_object, | |||
626 | * PARAMETERS: external_object - The external object to be converted | 626 | * PARAMETERS: external_object - The external object to be converted |
627 | * internal_object - Where the internal object is returned | 627 | * internal_object - Where the internal object is returned |
628 | * | 628 | * |
629 | * RETURN: Status - the status of the call | 629 | * RETURN: Status |
630 | * | 630 | * |
631 | * DESCRIPTION: Converts an external object to an internal object. | 631 | * DESCRIPTION: Converts an external object to an internal object. |
632 | * | 632 | * |
@@ -665,7 +665,7 @@ acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object, | |||
665 | * | 665 | * |
666 | * RETURN: Status | 666 | * RETURN: Status |
667 | * | 667 | * |
668 | * DESCRIPTION: Simple copy of one internal object to another. Reference count | 668 | * DESCRIPTION: Simple copy of one internal object to another. Reference count |
669 | * of the destination object is preserved. | 669 | * of the destination object is preserved. |
670 | * | 670 | * |
671 | ******************************************************************************/ | 671 | ******************************************************************************/ |
@@ -897,10 +897,11 @@ acpi_ut_copy_ielement_to_ielement(u8 object_type, | |||
897 | * | 897 | * |
898 | * FUNCTION: acpi_ut_copy_ipackage_to_ipackage | 898 | * FUNCTION: acpi_ut_copy_ipackage_to_ipackage |
899 | * | 899 | * |
900 | * PARAMETERS: *source_obj - Pointer to the source package object | 900 | * PARAMETERS: source_obj - Pointer to the source package object |
901 | * *dest_obj - Where the internal object is returned | 901 | * dest_obj - Where the internal object is returned |
902 | * walk_state - Current Walk state descriptor | ||
902 | * | 903 | * |
903 | * RETURN: Status - the status of the call | 904 | * RETURN: Status |
904 | * | 905 | * |
905 | * DESCRIPTION: This function is called to copy an internal package object | 906 | * DESCRIPTION: This function is called to copy an internal package object |
906 | * into another internal package object. | 907 | * into another internal package object. |
@@ -953,9 +954,9 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, | |||
953 | * | 954 | * |
954 | * FUNCTION: acpi_ut_copy_iobject_to_iobject | 955 | * FUNCTION: acpi_ut_copy_iobject_to_iobject |
955 | * | 956 | * |
956 | * PARAMETERS: walk_state - Current walk state | 957 | * PARAMETERS: source_desc - The internal object to be copied |
957 | * source_desc - The internal object to be copied | ||
958 | * dest_desc - Where the copied object is returned | 958 | * dest_desc - Where the copied object is returned |
959 | * walk_state - Current walk state | ||
959 | * | 960 | * |
960 | * RETURN: Status | 961 | * RETURN: Status |
961 | * | 962 | * |