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tegrakernel/kernel/kernel-4.9/drivers/acpi/acpica/nsdump.c

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/******************************************************************************
*
* Module Name: nsdump - table dumping routines for debug
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2016, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#include <acpi/acoutput.h>
#define _COMPONENT ACPI_NAMESPACE
ACPI_MODULE_NAME("nsdump")
/* Local prototypes */
#ifdef ACPI_OBSOLETE_FUNCTIONS
void acpi_ns_dump_root_devices(void);
static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
#endif
#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
static acpi_status
acpi_ns_dump_one_object_path(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
static acpi_status
acpi_ns_get_max_depth(acpi_handle obj_handle,
u32 level, void *context, void **return_value);
/*******************************************************************************
*
* FUNCTION: acpi_ns_print_pathname
*
* PARAMETERS: num_segments - Number of ACPI name segments
* pathname - The compressed (internal) path
*
* RETURN: None
*
* DESCRIPTION: Print an object's full namespace pathname
*
******************************************************************************/
void acpi_ns_print_pathname(u32 num_segments, const char *pathname)
{
u32 i;
ACPI_FUNCTION_NAME(ns_print_pathname);
/* Check if debug output enabled */
if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_NAMES, ACPI_NAMESPACE)) {
return;
}
/* Print the entire name */
ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
while (num_segments) {
for (i = 0; i < 4; i++) {
isprint((int)pathname[i]) ?
acpi_os_printf("%c", pathname[i]) :
acpi_os_printf("?");
}
pathname += ACPI_NAME_SIZE;
num_segments--;
if (num_segments) {
acpi_os_printf(".");
}
}
acpi_os_printf("]\n");
}
#ifdef ACPI_OBSOLETE_FUNCTIONS
/* Not used at this time, perhaps later */
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_pathname
*
* PARAMETERS: handle - Object
* msg - Prefix message
* level - Desired debug level
* component - Caller's component ID
*
* RETURN: None
*
* DESCRIPTION: Print an object's full namespace pathname
* Manages allocation/freeing of a pathname buffer
*
******************************************************************************/
void
acpi_ns_dump_pathname(acpi_handle handle,
const char *msg, u32 level, u32 component)
{
ACPI_FUNCTION_TRACE(ns_dump_pathname);
/* Do this only if the requested debug level and component are enabled */
if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
return_VOID;
}
/* Convert handle to a full pathname and print it (with supplied message) */
acpi_ns_print_node_pathname(handle, msg);
acpi_os_printf("\n");
return_VOID;
}
#endif
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_one_object
*
* PARAMETERS: obj_handle - Node to be dumped
* level - Nesting level of the handle
* context - Passed into walk_namespace
* return_value - Not used
*
* RETURN: Status
*
* DESCRIPTION: Dump a single Node
* This procedure is a user_function called by acpi_ns_walk_namespace.
*
******************************************************************************/
acpi_status
acpi_ns_dump_one_object(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
struct acpi_walk_info *info = (struct acpi_walk_info *)context;
struct acpi_namespace_node *this_node;
union acpi_operand_object *obj_desc = NULL;
acpi_object_type obj_type;
acpi_object_type type;
u32 bytes_to_dump;
u32 dbg_level;
u32 i;
ACPI_FUNCTION_NAME(ns_dump_one_object);
/* Is output enabled? */
if (!(acpi_dbg_level & info->debug_level)) {
return (AE_OK);
}
if (!obj_handle) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
return (AE_OK);
}
this_node = acpi_ns_validate_handle(obj_handle);
if (!this_node) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
obj_handle));
return (AE_OK);
}
type = this_node->type;
/* Check if the owner matches */
if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
(info->owner_id != this_node->owner_id)) {
return (AE_OK);
}
if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
/* Indent the object according to the level */
acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
/* Check the node type and name */
if (type > ACPI_TYPE_LOCAL_MAX) {
ACPI_WARNING((AE_INFO,
"Invalid ACPI Object Type 0x%08X", type));
}
acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
}
/* Now we can print out the pertinent information */
acpi_os_printf(" %-12s %p %2.2X ",
acpi_ut_get_type_name(type), this_node,
this_node->owner_id);
dbg_level = acpi_dbg_level;
acpi_dbg_level = 0;
obj_desc = acpi_ns_get_attached_object(this_node);
acpi_dbg_level = dbg_level;
/* Temp nodes are those nodes created by a control method */
if (this_node->flags & ANOBJ_TEMPORARY) {
acpi_os_printf("(T) ");
}
switch (info->display_type & ACPI_DISPLAY_MASK) {
case ACPI_DISPLAY_SUMMARY:
if (!obj_desc) {
/* No attached object. Some types should always have an object */
switch (type) {
case ACPI_TYPE_INTEGER:
case ACPI_TYPE_PACKAGE:
case ACPI_TYPE_BUFFER:
case ACPI_TYPE_STRING:
case ACPI_TYPE_METHOD:
acpi_os_printf("<No attached object>");
break;
default:
break;
}
acpi_os_printf("\n");
return (AE_OK);
}
switch (type) {
case ACPI_TYPE_PROCESSOR:
acpi_os_printf("ID %02X Len %02X Addr %8.8X%8.8X\n",
obj_desc->processor.proc_id,
obj_desc->processor.length,
ACPI_FORMAT_UINT64(obj_desc->processor.
address));
break;
case ACPI_TYPE_DEVICE:
acpi_os_printf("Notify Object: %p\n", obj_desc);
break;
case ACPI_TYPE_METHOD:
acpi_os_printf("Args %X Len %.4X Aml %p\n",
(u32) obj_desc->method.param_count,
obj_desc->method.aml_length,
obj_desc->method.aml_start);
break;
case ACPI_TYPE_INTEGER:
acpi_os_printf("= %8.8X%8.8X\n",
ACPI_FORMAT_UINT64(obj_desc->integer.
value));
break;
case ACPI_TYPE_PACKAGE:
if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
acpi_os_printf("Elements %.2X\n",
obj_desc->package.count);
} else {
acpi_os_printf("[Length not yet evaluated]\n");
}
break;
case ACPI_TYPE_BUFFER:
if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
acpi_os_printf("Len %.2X",
obj_desc->buffer.length);
/* Dump some of the buffer */
if (obj_desc->buffer.length > 0) {
acpi_os_printf(" =");
for (i = 0;
(i < obj_desc->buffer.length
&& i < 12); i++) {
acpi_os_printf(" %.2hX",
obj_desc->buffer.
pointer[i]);
}
}
acpi_os_printf("\n");
} else {
acpi_os_printf("[Length not yet evaluated]\n");
}
break;
case ACPI_TYPE_STRING:
acpi_os_printf("Len %.2X ", obj_desc->string.length);
acpi_ut_print_string(obj_desc->string.pointer, 80);
acpi_os_printf("\n");
break;
case ACPI_TYPE_REGION:
acpi_os_printf("[%s]",
acpi_ut_get_region_name(obj_desc->region.
space_id));
if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
ACPI_FORMAT_UINT64(obj_desc->
region.
address),
obj_desc->region.length);
} else {
acpi_os_printf
(" [Address/Length not yet evaluated]\n");
}
break;
case ACPI_TYPE_LOCAL_REFERENCE:
acpi_os_printf("[%s]\n",
acpi_ut_get_reference_name(obj_desc));
break;
case ACPI_TYPE_BUFFER_FIELD:
if (obj_desc->buffer_field.buffer_obj &&
obj_desc->buffer_field.buffer_obj->buffer.node) {
acpi_os_printf("Buf [%4.4s]",
acpi_ut_get_node_name(obj_desc->
buffer_field.
buffer_obj->
buffer.
node));
}
break;
case ACPI_TYPE_LOCAL_REGION_FIELD:
acpi_os_printf("Rgn [%4.4s]",
acpi_ut_get_node_name(obj_desc->
common_field.
region_obj->region.
node));
break;
case ACPI_TYPE_LOCAL_BANK_FIELD:
acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
acpi_ut_get_node_name(obj_desc->
common_field.
region_obj->region.
node),
acpi_ut_get_node_name(obj_desc->
bank_field.
bank_obj->
common_field.
node));
break;
case ACPI_TYPE_LOCAL_INDEX_FIELD:
acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
acpi_ut_get_node_name(obj_desc->
index_field.
index_obj->
common_field.node),
acpi_ut_get_node_name(obj_desc->
index_field.
data_obj->
common_field.
node));
break;
case ACPI_TYPE_LOCAL_ALIAS:
case ACPI_TYPE_LOCAL_METHOD_ALIAS:
acpi_os_printf("Target %4.4s (%p)\n",
acpi_ut_get_node_name(obj_desc),
obj_desc);
break;
default:
acpi_os_printf("Object %p\n", obj_desc);
break;
}
/* Common field handling */
switch (type) {
case ACPI_TYPE_BUFFER_FIELD:
case ACPI_TYPE_LOCAL_REGION_FIELD:
case ACPI_TYPE_LOCAL_BANK_FIELD:
case ACPI_TYPE_LOCAL_INDEX_FIELD:
acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
(obj_desc->common_field.
base_byte_offset * 8)
+
obj_desc->common_field.
start_field_bit_offset,
obj_desc->common_field.bit_length,
obj_desc->common_field.
access_byte_width);
break;
default:
break;
}
break;
case ACPI_DISPLAY_OBJECTS:
acpi_os_printf("O:%p", obj_desc);
if (!obj_desc) {
/* No attached object, we are done */
acpi_os_printf("\n");
return (AE_OK);
}
acpi_os_printf("(R%u)", obj_desc->common.reference_count);
switch (type) {
case ACPI_TYPE_METHOD:
/* Name is a Method and its AML offset/length are set */
acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
obj_desc->method.aml_length);
break;
case ACPI_TYPE_INTEGER:
acpi_os_printf(" I:%8.8X8.8%X\n",
ACPI_FORMAT_UINT64(obj_desc->integer.
value));
break;
case ACPI_TYPE_STRING:
acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
obj_desc->string.length);
break;
case ACPI_TYPE_BUFFER:
acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
obj_desc->buffer.length);
break;
default:
acpi_os_printf("\n");
break;
}
break;
default:
acpi_os_printf("\n");
break;
}
/* If debug turned off, done */
if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
return (AE_OK);
}
/* If there is an attached object, display it */
dbg_level = acpi_dbg_level;
acpi_dbg_level = 0;
obj_desc = acpi_ns_get_attached_object(this_node);
acpi_dbg_level = dbg_level;
/* Dump attached objects */
while (obj_desc) {
obj_type = ACPI_TYPE_INVALID;
acpi_os_printf("Attached Object %p: ", obj_desc);
/* Decode the type of attached object and dump the contents */
switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
case ACPI_DESC_TYPE_NAMED:
acpi_os_printf("(Ptr to Node)\n");
bytes_to_dump = sizeof(struct acpi_namespace_node);
ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
break;
case ACPI_DESC_TYPE_OPERAND:
obj_type = obj_desc->common.type;
if (obj_type > ACPI_TYPE_LOCAL_MAX) {
acpi_os_printf
("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
obj_type);
bytes_to_dump = 32;
} else {
acpi_os_printf
("(Pointer to ACPI Object type %.2X [%s])\n",
obj_type, acpi_ut_get_type_name(obj_type));
bytes_to_dump =
sizeof(union acpi_operand_object);
}
ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
break;
default:
break;
}
/* If value is NOT an internal object, we are done */
if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
ACPI_DESC_TYPE_OPERAND) {
goto cleanup;
}
/* Valid object, get the pointer to next level, if any */
switch (obj_type) {
case ACPI_TYPE_BUFFER:
case ACPI_TYPE_STRING:
/*
* NOTE: takes advantage of common fields between string/buffer
*/
bytes_to_dump = obj_desc->string.length;
obj_desc = (void *)obj_desc->string.pointer;
acpi_os_printf("(Buffer/String pointer %p length %X)\n",
obj_desc, bytes_to_dump);
ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
goto cleanup;
case ACPI_TYPE_BUFFER_FIELD:
obj_desc =
(union acpi_operand_object *)obj_desc->buffer_field.
buffer_obj;
break;
case ACPI_TYPE_PACKAGE:
obj_desc = (void *)obj_desc->package.elements;
break;
case ACPI_TYPE_METHOD:
obj_desc = (void *)obj_desc->method.aml_start;
break;
case ACPI_TYPE_LOCAL_REGION_FIELD:
obj_desc = (void *)obj_desc->field.region_obj;
break;
case ACPI_TYPE_LOCAL_BANK_FIELD:
obj_desc = (void *)obj_desc->bank_field.region_obj;
break;
case ACPI_TYPE_LOCAL_INDEX_FIELD:
obj_desc = (void *)obj_desc->index_field.index_obj;
break;
default:
goto cleanup;
}
obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
}
cleanup:
acpi_os_printf("\n");
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_objects
*
* PARAMETERS: type - Object type to be dumped
* display_type - 0 or ACPI_DISPLAY_SUMMARY
* max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
* for an effectively unlimited depth.
* owner_id - Dump only objects owned by this ID. Use
* ACPI_UINT32_MAX to match all owners.
* start_handle - Where in namespace to start/end search
*
* RETURN: None
*
* DESCRIPTION: Dump typed objects within the loaded namespace. Uses
* acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
*
******************************************************************************/
void
acpi_ns_dump_objects(acpi_object_type type,
u8 display_type,
u32 max_depth,
acpi_owner_id owner_id, acpi_handle start_handle)
{
struct acpi_walk_info info;
acpi_status status;
ACPI_FUNCTION_ENTRY();
/*
* Just lock the entire namespace for the duration of the dump.
* We don't want any changes to the namespace during this time,
* especially the temporary nodes since we are going to display
* them also.
*/
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not acquire namespace mutex\n");
return;
}
info.debug_level = ACPI_LV_TABLES;
info.owner_id = owner_id;
info.display_type = display_type;
(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
ACPI_NS_WALK_NO_UNLOCK |
ACPI_NS_WALK_TEMP_NODES,
acpi_ns_dump_one_object, NULL,
(void *)&info, NULL);
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
*
* PARAMETERS: obj_handle - Node to be dumped
* level - Nesting level of the handle
* context - Passed into walk_namespace
* return_value - Not used
*
* RETURN: Status
*
* DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
* computes the maximum nesting depth in the namespace tree, in
* order to simplify formatting in acpi_ns_dump_one_object_path.
* These procedures are user_functions called by acpi_ns_walk_namespace.
*
******************************************************************************/
static acpi_status
acpi_ns_dump_one_object_path(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
u32 max_level = *((u32 *)context);
char *pathname;
struct acpi_namespace_node *node;
int path_indent;
if (!obj_handle) {
return (AE_OK);
}
node = acpi_ns_validate_handle(obj_handle);
if (!node) {
/* Ignore bad node during namespace walk */
return (AE_OK);
}
pathname = acpi_ns_get_normalized_pathname(node, TRUE);
path_indent = 1;
if (level <= max_level) {
path_indent = max_level - level + 1;
}
acpi_os_printf("%2d%*s%-12s%*s",
level, level, " ", acpi_ut_get_type_name(node->type),
path_indent, " ");
acpi_os_printf("%s\n", &pathname[1]);
ACPI_FREE(pathname);
return (AE_OK);
}
static acpi_status
acpi_ns_get_max_depth(acpi_handle obj_handle,
u32 level, void *context, void **return_value)
{
u32 *max_level = (u32 *)context;
if (level > *max_level) {
*max_level = level;
}
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_object_paths
*
* PARAMETERS: type - Object type to be dumped
* display_type - 0 or ACPI_DISPLAY_SUMMARY
* max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
* for an effectively unlimited depth.
* owner_id - Dump only objects owned by this ID. Use
* ACPI_UINT32_MAX to match all owners.
* start_handle - Where in namespace to start/end search
*
* RETURN: None
*
* DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
* acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
*
******************************************************************************/
void
acpi_ns_dump_object_paths(acpi_object_type type,
u8 display_type,
u32 max_depth,
acpi_owner_id owner_id, acpi_handle start_handle)
{
acpi_status status;
u32 max_level = 0;
ACPI_FUNCTION_ENTRY();
/*
* Just lock the entire namespace for the duration of the dump.
* We don't want any changes to the namespace during this time,
* especially the temporary nodes since we are going to display
* them also.
*/
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not acquire namespace mutex\n");
return;
}
/* Get the max depth of the namespace tree, for formatting later */
(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
ACPI_NS_WALK_NO_UNLOCK |
ACPI_NS_WALK_TEMP_NODES,
acpi_ns_get_max_depth, NULL,
(void *)&max_level, NULL);
/* Now dump the entire namespace */
(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
ACPI_NS_WALK_NO_UNLOCK |
ACPI_NS_WALK_TEMP_NODES,
acpi_ns_dump_one_object_path, NULL,
(void *)&max_level, NULL);
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
}
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_entry
*
* PARAMETERS: handle - Node to be dumped
* debug_level - Output level
*
* RETURN: None
*
* DESCRIPTION: Dump a single Node
*
******************************************************************************/
void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
{
struct acpi_walk_info info;
ACPI_FUNCTION_ENTRY();
info.debug_level = debug_level;
info.owner_id = ACPI_OWNER_ID_MAX;
info.display_type = ACPI_DISPLAY_SUMMARY;
(void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
}
#ifdef ACPI_ASL_COMPILER
/*******************************************************************************
*
* FUNCTION: acpi_ns_dump_tables
*
* PARAMETERS: search_base - Root of subtree to be dumped, or
* NS_ALL to dump the entire namespace
* max_depth - Maximum depth of dump. Use INT_MAX
* for an effectively unlimited depth.
*
* RETURN: None
*
* DESCRIPTION: Dump the name space, or a portion of it.
*
******************************************************************************/
void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
{
acpi_handle search_handle = search_base;
ACPI_FUNCTION_TRACE(ns_dump_tables);
if (!acpi_gbl_root_node) {
/*
* If the name space has not been initialized,
* there is nothing to dump.
*/
ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
"namespace not initialized!\n"));
return_VOID;
}
if (ACPI_NS_ALL == search_base) {
/* Entire namespace */
search_handle = acpi_gbl_root_node;
ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
}
acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
ACPI_OWNER_ID_MAX, search_handle);
return_VOID;
}
#endif
#endif
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