/netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/drivers/acpi/acpica/ |
H A D | dswstate.c | 62 * walk_state - Current Walk state 72 struct acpi_walk_state *walk_state) 80 state = walk_state->results; 84 if (state && !walk_state->result_count) { 89 if (!state && walk_state->result_count) { 98 walk_state)); 104 walk_state->result_count--; 105 index = (u32)walk_state->result_count % ACPI_RESULTS_FRAME_OBJ_NUM; 111 walk_state)); 117 status = acpi_ds_result_stack_pop(walk_state); 71 acpi_ds_result_pop(union acpi_operand_object **object, struct acpi_walk_state *walk_state) argument 145 acpi_ds_result_push(union acpi_operand_object * object, struct acpi_walk_state * walk_state) argument 216 acpi_ds_result_stack_push(struct acpi_walk_state *walk_state) argument 261 acpi_ds_result_stack_pop(struct acpi_walk_state *walk_state) argument 309 acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) argument 356 acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) argument 401 acpi_ds_obj_stack_pop_and_delete(u32 pop_count, struct acpi_walk_state *walk_state) argument 474 acpi_ds_push_walk_state(struct acpi_walk_state *walk_state, struct acpi_thread_state *thread) argument 501 struct acpi_walk_state *walk_state; local 544 struct acpi_walk_state *walk_state; local 595 acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, union acpi_parse_object *op, struct acpi_namespace_node *method_node, u8 * aml_start, u32 aml_length, struct acpi_evaluate_info *info, u8 pass_number) argument 700 acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state) argument [all...] |
H A D | dswexec.c | 79 * PARAMETERS: walk_state - Current state of the parse tree walk 89 acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, argument 96 ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state); 98 walk_state->control_state->common.state = 0; 101 status = acpi_ds_result_pop(&obj_desc, walk_state); 109 status = acpi_ds_create_operand(walk_state, walk_state->op, 0); 115 acpi_ex_resolve_to_value(&walk_state->operands[0], 116 walk_state); 121 obj_desc = walk_state 213 acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, union acpi_parse_object **out_op) argument 356 acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) argument [all...] |
H A D | acdispat.h | 66 acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, 70 acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, 74 acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, 78 acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state, 83 acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state, 92 acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state, 96 acpi_ds_exec_end_control_op(struct acpi_walk_state *walk_state, 103 acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, 107 acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, 118 struct acpi_walk_state *walk_state); [all...] |
H A D | psloop.c | 65 static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state); 68 acpi_ps_build_named_op(struct acpi_walk_state *walk_state, 74 acpi_ps_create_op(struct acpi_walk_state *walk_state, 78 acpi_ps_get_arguments(struct acpi_walk_state *walk_state, 82 acpi_ps_complete_op(struct acpi_walk_state *walk_state, 86 acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, 97 * PARAMETERS: walk_state - Current state 105 static acpi_status acpi_ps_get_aml_opcode(struct acpi_walk_state *walk_state) argument 108 ACPI_FUNCTION_TRACE_PTR(ps_get_aml_opcode, walk_state); 110 walk_state 179 acpi_ps_build_named_op(struct acpi_walk_state *walk_state, u8 * aml_op_start, union acpi_parse_object *unnamed_op, union acpi_parse_object **op) argument 284 acpi_ps_create_op(struct acpi_walk_state *walk_state, u8 * aml_op_start, union acpi_parse_object **new_op) argument 392 acpi_ps_get_arguments(struct acpi_walk_state *walk_state, u8 * aml_op_start, union acpi_parse_object *op) argument 692 acpi_ps_complete_op(struct acpi_walk_state *walk_state, union acpi_parse_object **op, acpi_status status) argument 857 acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, union acpi_parse_object *op, acpi_status status) argument 964 acpi_ps_parse_loop(struct acpi_walk_state *walk_state) argument [all...] |
H A D | dswload.c | 64 * PARAMETERS: walk_state - Current state of the parse tree walk 73 acpi_ds_init_callbacks(struct acpi_walk_state *walk_state, u32 pass_number) argument 78 walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | 80 walk_state->descending_callback = acpi_ds_load1_begin_op; 81 walk_state->ascending_callback = acpi_ds_load1_end_op; 85 walk_state->parse_flags = ACPI_PARSE_LOAD_PASS1 | 87 walk_state->descending_callback = acpi_ds_load2_begin_op; 88 walk_state->ascending_callback = acpi_ds_load2_end_op; 93 walk_state->parse_flags |= ACPI_PARSE_EXECUTE | 95 walk_state 121 acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, union acpi_parse_object ** out_op) argument 391 acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) argument 555 acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, union acpi_parse_object **out_op) argument 844 acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) argument [all...] |
H A D | psparse.c | 124 * PARAMETERS: walk_state - Current State 134 acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, argument 153 if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) != 155 || (walk_state->op_info->class == AML_CLASS_ARGUMENT)) { 221 && (walk_state->pass_number <= 314 * PARAMETERS: walk_state - Current state 326 acpi_ps_next_parse_state(struct acpi_walk_state *walk_state, argument 330 struct acpi_parse_state *parser_state = &walk_state->parser_state; 347 parser_state->aml = walk_state->aml_last_while; 348 walk_state 430 acpi_ps_parse_aml(struct acpi_walk_state *walk_state) argument [all...] |
H A D | dswscope.c | 55 * PARAMETERS: walk_state - Current state 63 void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state) argument 69 while (walk_state->scope_info) { 73 scope_info = walk_state->scope_info; 74 walk_state->scope_info = scope_info->scope.next; 90 * walk_state - Current state 102 struct acpi_walk_state *walk_state) 136 walk_state->scope_depth++; 140 (u32) walk_state->scope_depth)); 142 old_scope_info = walk_state 100 acpi_ds_scope_stack_push(struct acpi_namespace_node *node, acpi_object_type type, struct acpi_walk_state *walk_state) argument 177 acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state) argument [all...] |
H A D | exoparg2.c | 79 * PARAMETERS: walk_state - Current walk state 89 acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) argument 91 union acpi_operand_object **operand = &walk_state->operands[0]; 97 acpi_ps_get_opcode_name(walk_state->opcode)); 101 switch (walk_state->opcode) { 136 walk_state->opcode)); 147 * PARAMETERS: walk_state - Current walk state 156 acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) argument 158 union acpi_operand_object **operand = &walk_state->operands[0]; 164 acpi_ps_get_opcode_name(walk_state 254 acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) argument 487 acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) argument [all...] |
H A D | dsutils.c | 60 * PARAMETERS: walk_state - Current State 70 void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state) argument 81 if (walk_state->implicit_return_obj) { 89 walk_state->implicit_return_obj)); 91 acpi_ut_remove_reference(walk_state->implicit_return_obj); 92 walk_state->implicit_return_obj = NULL; 102 * walk_state - Current State 117 struct acpi_walk_state *walk_state, u8 add_reference) 131 return_desc, walk_state->implicit_return_obj)); 139 if (walk_state 116 acpi_ds_do_implicit_return(union acpi_operand_object *return_desc, struct acpi_walk_state *walk_state, u8 add_reference) argument 170 acpi_ds_is_result_used(union acpi_parse_object * op, struct acpi_walk_state * walk_state) argument 340 acpi_ds_delete_result_if_not_used(union acpi_parse_object *op, union acpi_operand_object *result_obj, struct acpi_walk_state *walk_state) argument 385 acpi_ds_resolve_operands(struct acpi_walk_state *walk_state) argument 421 acpi_ds_clear_operands(struct acpi_walk_state *walk_state) argument 461 acpi_ds_create_operand(struct acpi_walk_state *walk_state, union acpi_parse_object *arg, u32 arg_index) argument 700 acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *first_arg) argument 783 acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state) argument [all...] |
H A D | exoparg3.c | 79 * PARAMETERS: walk_state - Current walk state 86 acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) argument 88 union acpi_operand_object **operand = &walk_state->operands[0]; 93 acpi_ps_get_opcode_name(walk_state->opcode)); 95 switch (walk_state->opcode) { 123 walk_state->opcode)); 137 * PARAMETERS: walk_state - Current walk state 145 acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) argument 147 union acpi_operand_object **operand = &walk_state->operands[0]; 155 acpi_ps_get_opcode_name(walk_state [all...] |
H A D | dsmthdat.c | 56 u32 index, struct acpi_walk_state *walk_state); 62 struct acpi_walk_state *walk_state); 67 u32 index, struct acpi_walk_state *walk_state); 74 * PARAMETERS: walk_state - Current walk state object 83 * NOTES: walk_state fields are initialized to zero by the 91 void acpi_ds_method_data_init(struct acpi_walk_state *walk_state) argument 100 ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name, 102 walk_state->arguments[i].name.integer |= (i << 24); 103 walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED; 104 walk_state 137 acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state) argument 193 acpi_ds_method_data_init_args(union acpi_operand_object **params, u32 max_param_count, struct acpi_walk_state *walk_state) argument 248 acpi_ds_method_data_get_node(u8 type, u32 index, struct acpi_walk_state *walk_state, struct acpi_namespace_node **node) argument 313 acpi_ds_method_data_set_value(u8 type, u32 index, union acpi_operand_object *object, struct acpi_walk_state *walk_state) argument 367 acpi_ds_method_data_get_value(u8 type, u32 index, struct acpi_walk_state *walk_state, union acpi_operand_object **dest_desc) argument 474 acpi_ds_method_data_delete_value(u8 type, u32 index, struct acpi_walk_state *walk_state) argument 533 acpi_ds_store_object_to_local(u8 type, u32 index, union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state) argument 684 acpi_ds_method_data_get_type(u16 opcode, u32 index, struct acpi_walk_state *walk_state) argument [all...] |
H A D | exoparg1.c | 81 * PARAMETERS: walk_state - Current state (contains AML opcode) 88 acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) argument 94 acpi_ps_get_opcode_name(walk_state->opcode)); 98 switch (walk_state->opcode) { 114 walk_state->opcode)); 123 if ((ACPI_FAILURE(status)) || walk_state->result_obj) { 125 walk_state->result_obj = NULL; 129 walk_state->result_obj = return_desc; 139 * PARAMETERS: walk_state - Current state (contains AML opcode) 148 acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) argument 214 acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) argument 256 acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) argument 585 acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) argument [all...] |
H A D | dsmethod.c | 66 * walk_state - Current state 78 acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) argument 101 walk_state->method_node ? 102 walk_state->method_node-> 104 walk_state->opcode, 105 walk_state->aml_offset, 110 acpi_ds_clear_implicit_return(walk_state); 117 acpi_dm_dump_method_info(status, walk_state, walk_state->op); 169 * walk_state 181 acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node, union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state) argument 452 acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, union acpi_operand_object *return_desc) argument 542 acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, struct acpi_walk_state *walk_state) argument [all...] |
H A D | nsparse.c | 75 struct acpi_walk_state *walk_state; local 95 walk_state = acpi_ds_create_walk_state(owner_id, NULL, NULL, NULL); 96 if (!walk_state) { 103 acpi_ds_delete_walk_state(walk_state); 115 status = acpi_ds_init_aml_walk(walk_state, parse_root, NULL, 121 acpi_ds_delete_walk_state(walk_state); 130 walk_state); 132 acpi_ds_delete_walk_state(walk_state); 141 status = acpi_ps_parse_aml(walk_state);
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H A D | psxface.c | 220 struct acpi_walk_state *walk_state; local 271 walk_state = 274 if (!walk_state) { 279 status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node, 284 acpi_ds_delete_walk_state(walk_state); 289 walk_state->parse_flags |= ACPI_PARSE_MODULE_LEVEL; 296 info->obj_desc->method.extra.implementation(walk_state); 297 info->return_object = walk_state->return_desc; 301 acpi_ds_scope_stack_clear(walk_state); 302 acpi_ps_cleanup_scope(&walk_state [all...] |
H A D | dsopcode.c | 94 struct acpi_walk_state *walk_state; local 112 walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL); 113 if (!walk_state) { 118 status = acpi_ds_init_aml_walk(walk_state, op, NULL, aml_start, 121 acpi_ds_delete_walk_state(walk_state); 127 walk_state->parse_flags = ACPI_PARSE_DEFERRED_OP; 128 walk_state->deferred_node = node; 132 status = acpi_ps_parse_aml(walk_state); 153 walk_state = acpi_ds_create_walk_state(0, NULL, NULL, NULL); 154 if (!walk_state) { 660 acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *op) argument 744 acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *op) argument 835 acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *op) argument 934 acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *op, union acpi_operand_object *obj_desc) argument 1035 acpi_ds_eval_bank_field_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *op) argument 1133 acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state, union acpi_parse_object *op) argument 1230 acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, union acpi_parse_object * op) argument [all...] |
H A D | acinterp.h | 47 #define ACPI_WALK_OPERANDS (&(walk_state->operands [walk_state->num_operands -1])) 122 struct acpi_walk_state *walk_state); 156 acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, 186 struct acpi_walk_state *walk_state); 192 struct acpi_walk_state *walk_state); 198 struct acpi_walk_state *walk_state); 211 acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state); 213 acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state); 215 acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state); [all...] |
H A D | dsfield.c | 58 struct acpi_walk_state *walk_state, 66 * walk_state - Current state 82 struct acpi_walk_state *walk_state) 111 if (walk_state->deferred_node) { 112 node = walk_state->deferred_node; 117 if (!(walk_state->parse_flags & ACPI_PARSE_EXECUTE)) { 130 if (walk_state->method_node && 131 !(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) { 138 acpi_ns_lookup(walk_state->scope_info, 140 ACPI_IMODE_LOAD_PASS1, flags, walk_state, 81 acpi_ds_create_buffer_field(union acpi_parse_object *op, struct acpi_walk_state *walk_state) argument 218 acpi_ds_get_field_names(struct acpi_create_field_info *info, struct acpi_walk_state *walk_state, union acpi_parse_object *arg) argument 352 acpi_ds_create_field(union acpi_parse_object *op, struct acpi_namespace_node *region_node, struct acpi_walk_state *walk_state) argument 409 acpi_ds_init_field_objects(union acpi_parse_object *op, struct acpi_walk_state *walk_state) argument 523 acpi_ds_create_bank_field(union acpi_parse_object *op, struct acpi_namespace_node *region_node, struct acpi_walk_state *walk_state) argument 607 acpi_ds_create_index_field(union acpi_parse_object *op, struct acpi_namespace_node *region_node, struct acpi_walk_state *walk_state) argument [all...] |
H A D | excreate.c | 57 * PARAMETERS: walk_state - Current state, contains operands 64 acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) argument 74 alias_node = (struct acpi_namespace_node *)walk_state->operands[0]; 75 target_node = (struct acpi_namespace_node *)walk_state->operands[1]; 162 * PARAMETERS: walk_state - Current state 170 acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) argument 196 acpi_ns_attach_object((struct acpi_namespace_node *)walk_state-> 212 * PARAMETERS: walk_state - Current state 222 acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) argument 247 (u8) walk_state 280 acpi_ex_create_region(u8 * aml_start, u32 aml_length, u8 region_space, struct acpi_walk_state *walk_state) argument 366 acpi_ex_create_processor(struct acpi_walk_state *walk_state) argument 413 acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) argument 461 acpi_ex_create_method(u8 * aml_start, u32 aml_length, struct acpi_walk_state *walk_state) argument [all...] |
H A D | exoparg6.c | 208 * PARAMETERS: walk_state - Current walk state 216 acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) argument 218 union acpi_operand_object **operand = &walk_state->operands[0]; 225 acpi_ps_get_opcode_name(walk_state->opcode)); 227 switch (walk_state->opcode) { 312 status = acpi_ex_load_table_op(walk_state, &return_desc); 318 walk_state->opcode)); 334 walk_state->result_obj = return_desc;
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H A D | exstoren.c | 60 * walk_state - Current walk state 71 struct acpi_walk_state *walk_state) 105 walk_state); 113 if (walk_state->opcode == AML_COPY_OP) { 166 * walk_state - Current walk state 198 struct acpi_walk_state *walk_state) 214 walk_state); 231 walk_state); 276 walk_state); 69 acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, acpi_object_type target_type, struct acpi_walk_state *walk_state) argument 195 acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, union acpi_operand_object *dest_desc, union acpi_operand_object **new_desc, struct acpi_walk_state *walk_state) argument
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H A D | exmutex.c | 216 * walk_state - Current method execution state 227 struct acpi_walk_state *walk_state) 239 if (!walk_state->thread) { 250 if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { 254 walk_state->thread->current_sync_level)); 260 walk_state->thread->thread_id); 265 obj_desc->mutex.owner_thread = walk_state->thread; 267 walk_state->thread->current_sync_level; 268 walk_state->thread->current_sync_level = 273 acpi_ex_link_mutex(obj_desc, walk_state 225 acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state) argument 357 acpi_ex_release_mutex(union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state) argument [all...] |
H A D | psargs.c | 230 acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, argument 261 status = acpi_ns_lookup(walk_state->scope_info, path, 272 if (walk_state->opcode == AML_UNLOAD_OP) { 277 walk_state->parser_state.aml = start; 278 walk_state->arg_count = 1; 318 walk_state->arg_count = method_desc->method.param_count; 330 if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) != 337 else if (walk_state->op->common.aml_opcode == 361 if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == 366 status = acpi_ds_method_error(status, walk_state); 590 acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, struct acpi_parse_state *parser_state, u32 arg_type, union acpi_parse_object **return_arg) argument [all...] |
H A D | exstore.c | 58 struct acpi_walk_state *walk_state); 68 * walk_state - Current walk state 83 struct acpi_walk_state *walk_state) 107 dest_desc, walk_state, 156 object, walk_state, 166 walk_state); 177 source_desc, walk_state); 213 * walk_state - Current walk state 224 struct acpi_walk_state *walk_state) 264 walk_state); 81 acpi_ex_store(union acpi_operand_object *source_desc, union acpi_operand_object *dest_desc, struct acpi_walk_state *walk_state) argument 222 acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, union acpi_operand_object *index_desc, struct acpi_walk_state *walk_state) argument 386 acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, struct acpi_namespace_node *node, struct acpi_walk_state *walk_state, u8 implicit_conversion) argument [all...] |
H A D | acparser.h | 90 acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, 95 acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, 119 acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state); 126 acpi_ps_complete_this_op(struct acpi_walk_state *walk_state, 130 acpi_ps_next_parse_state(struct acpi_walk_state *walk_state, 137 acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state); 194 acpi_ps_get_next_walk_op(struct acpi_walk_state *walk_state, 198 acpi_status acpi_ps_delete_completed_op(struct acpi_walk_state *walk_state);
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