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 /******************************************************************************
  *
  * Module Name: psloop - Main AML parse loop
  *
  *****************************************************************************/
 
 /******************************************************************************
  *
  * 1. Copyright Notice
  *
  * Some or all of this work - Copyright (c) 1999 - 2024, Intel Corp.
  * All rights reserved.
  *
  * 2. License
  *
  * 2.1. This is your license from Intel Corp. under its intellectual property
  * rights. You may have additional license terms from the party that provided
  * you this software, covering your right to use that party's intellectual
  * property rights.
  *
  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  * copy of the source code appearing in this file ("Covered Code") an
  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  * base code distributed originally by Intel ("Original Intel Code") to copy,
  * make derivatives, distribute, use and display any portion of the Covered
  * Code in any form, with the right to sublicense such rights; and
  *
  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  * license (with the right to sublicense), under only those claims of Intel
  * patents that are infringed by the Original Intel Code, to make, use, sell,
  * offer to sell, and import the Covered Code and derivative works thereof
  * solely to the minimum extent necessary to exercise the above copyright
  * license, and in no event shall the patent license extend to any additions
  * to or modifications of the Original Intel Code. No other license or right
  * is granted directly or by implication, estoppel or otherwise;
  *
  * The above copyright and patent license is granted only if the following
  * conditions are met:
  *
  * 3. Conditions
  *
  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  * Redistribution of source code of any substantial portion of the Covered
  * Code or modification with rights to further distribute source must include
  * the above Copyright Notice, the above License, this list of Conditions,
  * and the following Disclaimer and Export Compliance provision. In addition,
  * Licensee must cause all Covered Code to which Licensee contributes to
  * contain a file documenting the changes Licensee made to create that Covered
  * Code and the date of any change. Licensee must include in that file the
  * documentation of any changes made by any predecessor Licensee. Licensee
  * must include a prominent statement that the modification is derived,
  * directly or indirectly, from Original Intel Code.
  *
  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  * Redistribution of source code of any substantial portion of the Covered
  * Code or modification without rights to further distribute source must
  * include the following Disclaimer and Export Compliance provision in the
  * documentation and/or other materials provided with distribution. In
  * addition, Licensee may not authorize further sublicense of source of any
  * portion of the Covered Code, and must include terms to the effect that the
  * license from Licensee to its licensee is limited to the intellectual
  * property embodied in the software Licensee provides to its licensee, and
  * not to intellectual property embodied in modifications its licensee may
  * make.
  *
  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  * substantial portion of the Covered Code or modification must reproduce the
  * above Copyright Notice, and the following Disclaimer and Export Compliance
  * provision in the documentation and/or other materials provided with the
  * distribution.
  *
  * 3.4. Intel retains all right, title, and interest in and to the Original
  * Intel Code.
  *
  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  * Intel shall be used in advertising or otherwise to promote the sale, use or
  * other dealings in products derived from or relating to the Covered Code
  * without prior written authorization from Intel.
  *
  * 4. Disclaimer and Export Compliance
  *
  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  * PARTICULAR PURPOSE.
  *
  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  * LIMITED REMEDY.
  *
  * 4.3. Licensee shall not export, either directly or indirectly, any of this
  * software or system incorporating such software without first obtaining any
  * required license or other approval from the U. S. Department of Commerce or
  * any other agency or department of the United States Government. In the
  * event Licensee exports any such software from the United States or
  * re-exports any such software from a foreign destination, Licensee shall
  * ensure that the distribution and export/re-export of the software is in
  * compliance with all laws, regulations, orders, or other restrictions of the
  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
  * any of its subsidiaries will export/re-export any technical data, process,
  * software, or service, directly or indirectly, to any country for which the
  * United States government or any agency thereof requires an export license,
  * other governmental approval, or letter of assurance, without first obtaining
  * such license, approval or letter.
  *
  *****************************************************************************
  *
  * Alternatively, you may choose to be licensed under the terms of the
  * following license:
  *
  * 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.
  *
  * 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 MERCHANTABILITY AND FITNESS FOR
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * 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 DAMAGE.
  *
  * Alternatively, you may choose to be licensed under the terms of the
  * GNU General Public License ("GPL") version 2 as published by the Free
  * Software Foundation.
  *
  *****************************************************************************/
 
 /*
  * Parse the AML and build an operation tree as most interpreters, (such as
  * Perl) do. Parsing is done by hand rather than with a YACC generated parser
  * to tightly constrain stack and dynamic memory usage. Parsing is kept
  * flexible and the code fairly compact by parsing based on a list of AML
  * opcode templates in AmlOpInfo[].
  */
 
 #include "acpi.h"
 #include "accommon.h"
 #include "acinterp.h"
 #include "acparser.h"
 #include "acdispat.h"
 #include "amlcode.h"
 #include "acconvert.h"
 #include "acnamesp.h"
 
 #define _COMPONENT          ACPI_PARSER
         ACPI_MODULE_NAME    ("psloop")
 
 
 /* Local prototypes */
 
 static ACPI_STATUS
 AcpiPsGetArguments (
     ACPI_WALK_STATE         *WalkState,
     UINT8                   *AmlOpStart,
     ACPI_PARSE_OBJECT       *Op);
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiPsGetArguments
  *
  * PARAMETERS:  WalkState           - Current state
  *              AmlOpStart          - Op start in AML
  *              Op                  - Current Op
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Get arguments for passed Op.
  *
  ******************************************************************************/
 
 static ACPI_STATUS
 AcpiPsGetArguments (
     ACPI_WALK_STATE         *WalkState,
     UINT8                   *AmlOpStart,
     ACPI_PARSE_OBJECT       *Op)
 {
     ACPI_STATUS             Status = AE_OK;
     ACPI_PARSE_OBJECT       *Arg = NULL;
 
 
     ACPI_FUNCTION_TRACE_PTR (PsGetArguments, WalkState);
 
 
     ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
         "Get arguments for opcode [%s]\n", Op->Common.AmlOpName));
 
     switch (Op->Common.AmlOpcode)
     {
     case AML_BYTE_OP:       /* AML_BYTEDATA_ARG */
     case AML_WORD_OP:       /* AML_WORDDATA_ARG */
     case AML_DWORD_OP:      /* AML_DWORDATA_ARG */
     case AML_QWORD_OP:      /* AML_QWORDATA_ARG */
     case AML_STRING_OP:     /* AML_ASCIICHARLIST_ARG */
 
         /* Fill in constant or string argument directly */
 
         AcpiPsGetNextSimpleArg (&(WalkState->ParserState),
             GET_CURRENT_ARG_TYPE (WalkState->ArgTypes), Op);
         break;
 
     case AML_INT_NAMEPATH_OP:   /* AML_NAMESTRING_ARG */
 
         Status = AcpiPsGetNextNamepath (WalkState,
             &(WalkState->ParserState), Op, ACPI_POSSIBLE_METHOD_CALL);
         if (ACPI_FAILURE (Status))
         {
             return_ACPI_STATUS (Status);
         }
 
         WalkState->ArgTypes = 0;
         break;
 
     default:
         /*
          * Op is not a constant or string, append each argument to the Op
          */
         while (GET_CURRENT_ARG_TYPE (WalkState->ArgTypes) &&
             !WalkState->ArgCount)
         {
             WalkState->Aml = WalkState->ParserState.Aml;
 
             switch (Op->Common.AmlOpcode)
             {
             case AML_METHOD_OP:
             case AML_BUFFER_OP:
             case AML_PACKAGE_OP:
             case AML_VARIABLE_PACKAGE_OP:
             case AML_WHILE_OP:
 
                 break;
 
             default:
 
                 ASL_CV_CAPTURE_COMMENTS (WalkState);
                 break;
             }
 
             Status = AcpiPsGetNextArg (WalkState, &(WalkState->ParserState),
                 GET_CURRENT_ARG_TYPE (WalkState->ArgTypes), &Arg);
             if (ACPI_FAILURE (Status))
             {
                 return_ACPI_STATUS (Status);
             }
 
             if (Arg)
             {
                 AcpiPsAppendArg (Op, Arg);
             }
 
             INCREMENT_ARG_LIST (WalkState->ArgTypes);
         }
 
         ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
             "Final argument count: %8.8X pass %u\n",
             WalkState->ArgCount, WalkState->PassNumber));
 
         /* Special processing for certain opcodes */
 
         switch (Op->Common.AmlOpcode)
         {
         case AML_METHOD_OP:
             /*
              * Skip parsing of control method because we don't have enough
              * info in the first pass to parse it correctly.
              *
              * Save the length and address of the body
              */
             Op->Named.Data = WalkState->ParserState.Aml;
             Op->Named.Length = (UINT32)
                 (WalkState->ParserState.PkgEnd - WalkState->ParserState.Aml);
 
             /* Skip body of method */
 
             WalkState->ParserState.Aml = WalkState->ParserState.PkgEnd;
             WalkState->ArgCount = 0;
             break;
 
         case AML_BUFFER_OP:
         case AML_PACKAGE_OP:
         case AML_VARIABLE_PACKAGE_OP:
 
             if ((Op->Common.Parent) &&
                 (Op->Common.Parent->Common.AmlOpcode == AML_NAME_OP) &&
                 (WalkState->PassNumber <= ACPI_IMODE_LOAD_PASS2))
             {
                 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
                     "Setup Package/Buffer: Pass %u, AML Ptr: %p\n",
                     WalkState->PassNumber, AmlOpStart));
 
                 /*
                  * Skip parsing of Buffers and Packages because we don't have
                  * enough info in the first pass to parse them correctly.
                  */
                 Op->Named.Data = AmlOpStart;
                 Op->Named.Length = (UINT32)
                     (WalkState->ParserState.PkgEnd - AmlOpStart);
 
                 /* Skip body */
 
                 WalkState->ParserState.Aml = WalkState->ParserState.PkgEnd;
                 WalkState->ArgCount = 0;
             }
             break;
 
         case AML_WHILE_OP:
 
             if (WalkState->ControlState)
             {
                 WalkState->ControlState->Control.PackageEnd =
                     WalkState->ParserState.PkgEnd;
             }
             break;
 
         default:
 
             /* No action for all other opcodes */
 
             break;
         }
 
         break;
     }
 
     return_ACPI_STATUS (AE_OK);
 }
 
 
 /*******************************************************************************
  *
  * FUNCTION:    AcpiPsParseLoop
  *
  * PARAMETERS:  WalkState           - Current state
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Parse AML (pointed to by the current parser state) and return
  *              a tree of ops.
  *
  ******************************************************************************/
 
 ACPI_STATUS
 AcpiPsParseLoop (
     ACPI_WALK_STATE         *WalkState)
 {
     ACPI_STATUS             Status = AE_OK;
     ACPI_PARSE_OBJECT       *Op = NULL;     /* current op */
     ACPI_PARSE_STATE        *ParserState;
     UINT8                   *AmlOpStart = NULL;
     UINT8                   OpcodeLength;
 
 
     ACPI_FUNCTION_TRACE_PTR (PsParseLoop, WalkState);
 
 
     if (WalkState->DescendingCallback == NULL)
     {
         return_ACPI_STATUS (AE_BAD_PARAMETER);
     }
 
     ParserState = &WalkState->ParserState;
     WalkState->ArgTypes = 0;
 
 #ifndef ACPI_CONSTANT_EVAL_ONLY
 
     if (WalkState->WalkType & ACPI_WALK_METHOD_RESTART)
     {
         /* We are restarting a preempted control method */
 
         if (AcpiPsHasCompletedScope (ParserState))
         {
             /*
              * We must check if a predicate to an IF or WHILE statement
              * was just completed
              */
             if ((ParserState->Scope->ParseScope.Op) &&
                ((ParserState->Scope->ParseScope.Op->Common.AmlOpcode == AML_IF_OP) ||
                 (ParserState->Scope->ParseScope.Op->Common.AmlOpcode == AML_WHILE_OP)) &&
                 (WalkState->ControlState) &&
                 (WalkState->ControlState->Common.State ==
                     ACPI_CONTROL_PREDICATE_EXECUTING))
             {
                 /*
                  * A predicate was just completed, get the value of the
                  * predicate and branch based on that value
                  */
                 WalkState->Op = NULL;
                 Status = AcpiDsGetPredicateValue (WalkState, ACPI_TO_POINTER (TRUE));
                 if (ACPI_FAILURE (Status) && !ACPI_CNTL_EXCEPTION (Status))
                 {
                     if (Status == AE_AML_NO_RETURN_VALUE)
                     {
                         ACPI_EXCEPTION ((AE_INFO, Status,
                             "Invoked method did not return a value"));
                     }
 
                     ACPI_EXCEPTION ((AE_INFO, Status, "GetPredicate Failed"));
                     return_ACPI_STATUS (Status);
                 }
 
                 Status = AcpiPsNextParseState (WalkState, Op, Status);
             }
 
             AcpiPsPopScope (ParserState, &Op,
                 &WalkState->ArgTypes, &WalkState->ArgCount);
             ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Popped scope, Op=%p\n", Op));
         }
         else if (WalkState->PrevOp)
         {
             /* We were in the middle of an op */
 
             Op = WalkState->PrevOp;
             WalkState->ArgTypes = WalkState->PrevArgTypes;
         }
     }
 #endif
 
     /* Iterative parsing loop, while there is more AML to process: */
 
     while ((ParserState->Aml < ParserState->AmlEnd) || (Op))
     {
         ASL_CV_CAPTURE_COMMENTS (WalkState);
 
         AmlOpStart = ParserState->Aml;
         if (!Op)
         {
             Status = AcpiPsCreateOp (WalkState, AmlOpStart, &Op);
             if (ACPI_FAILURE (Status))
             {
                 /*
                  * ACPI_PARSE_MODULE_LEVEL means that we are loading a table by
                  * executing it as a control method. However, if we encounter
                  * an error while loading the table, we need to keep trying to
                  * load the table rather than aborting the table load. Set the
                  * status to AE_OK to proceed with the table load.
                  */
                 if ((WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL) &&
                     ((Status == AE_ALREADY_EXISTS) || (Status == AE_NOT_FOUND)))
                 {
                     Status = AE_OK;
                 }
                 if (Status == AE_CTRL_PARSE_CONTINUE)
                 {
                     continue;
                 }
 
                 if (Status == AE_CTRL_PARSE_PENDING)
                 {
                     Status = AE_OK;
                 }
 
                 if (Status == AE_CTRL_TERMINATE)
                 {
                     return_ACPI_STATUS (Status);
                 }
 
                 Status = AcpiPsCompleteOp (WalkState, &Op, Status);
                 if (ACPI_FAILURE (Status))
                 {
                     return_ACPI_STATUS (Status);
                 }
                 if (AcpiNsOpensScope (
                     AcpiPsGetOpcodeInfo (WalkState->Opcode)->ObjectType))
                 {
                     /*
                      * If the scope/device op fails to parse, skip the body of
                      * the scope op because the parse failure indicates that
                      * the device may not exist.
                      */
                     ACPI_INFO (("Skipping parse of AML opcode: %s (0x%4.4X)",
                         AcpiPsGetOpcodeName (WalkState->Opcode), WalkState->Opcode));
 
                     /*
                      * Determine the opcode length before skipping the opcode.
                      * An opcode can be 1 byte or 2 bytes in length.
                      */
                     OpcodeLength = 1;
                     if ((WalkState->Opcode & 0xFF00) == AML_EXTENDED_OPCODE)
                     {
                         OpcodeLength = 2;
                     }
                     WalkState->ParserState.Aml = WalkState->Aml + OpcodeLength;
 
                     WalkState->ParserState.Aml =
                         AcpiPsGetNextPackageEnd(&WalkState->ParserState);
                     WalkState->Aml = WalkState->ParserState.Aml;
                 }
 
                 continue;
             }
 
             AcpiExStartTraceOpcode (Op, WalkState);
         }
 
         /*
          * Start ArgCount at zero because we don't know if there are
          * any args yet
          */
         WalkState->ArgCount = 0;
 
         switch (Op->Common.AmlOpcode)
         {
         case AML_BYTE_OP:
         case AML_WORD_OP:
         case AML_DWORD_OP:
         case AML_QWORD_OP:
 
             break;
 
         default:
 
             ASL_CV_CAPTURE_COMMENTS (WalkState);
             break;
         }
 
         /* Are there any arguments that must be processed? */
 
         if (WalkState->ArgTypes)
         {
             /* Get arguments */
 
             Status = AcpiPsGetArguments (WalkState, AmlOpStart, Op);
             if (ACPI_FAILURE (Status))
             {
                 Status = AcpiPsCompleteOp (WalkState, &Op, Status);
                 if (ACPI_FAILURE (Status))
                 {
                     return_ACPI_STATUS (Status);
                 }
                 if ((WalkState->ControlState) &&
                     ((WalkState->ControlState->Control.Opcode == AML_IF_OP) ||
                     (WalkState->ControlState->Control.Opcode == AML_WHILE_OP)))
                 {
                     /*
                      * If the if/while op fails to parse, we will skip parsing
                      * the body of the op.
                      */
                     ParserState->Aml =
                         WalkState->ControlState->Control.AmlPredicateStart + 1;
                     ParserState->Aml =
                         AcpiPsGetNextPackageEnd (ParserState);
                     WalkState->Aml = ParserState->Aml;
 
                     ACPI_ERROR ((AE_INFO, "Skipping While/If block"));
                     if (*WalkState->Aml == AML_ELSE_OP)
                     {
                         ACPI_ERROR ((AE_INFO, "Skipping Else block"));
                         WalkState->ParserState.Aml = WalkState->Aml + 1;
                         WalkState->ParserState.Aml =
                             AcpiPsGetNextPackageEnd (ParserState);
                         WalkState->Aml = ParserState->Aml;
                     }
                     ACPI_FREE(AcpiUtPopGenericState (&WalkState->ControlState));
                 }
                 Op = NULL;
                 continue;
             }
         }
 
         /* Check for arguments that need to be processed */
 
         ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
             "Parseloop: argument count: %8.8X\n", WalkState->ArgCount));
 
         if (WalkState->ArgCount)
         {
             /*
              * There are arguments (complex ones), push Op and
              * prepare for argument
              */
             Status = AcpiPsPushScope (ParserState, Op,
                 WalkState->ArgTypes, WalkState->ArgCount);
             if (ACPI_FAILURE (Status))
             {
                 Status = AcpiPsCompleteOp (WalkState, &Op, Status);
                 if (ACPI_FAILURE (Status))
                 {
                     return_ACPI_STATUS (Status);
                 }
 
                 continue;
             }
 
             Op = NULL;
             continue;
         }
 
         /*
          * All arguments have been processed -- Op is complete,
          * prepare for next
          */
         WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
         if (WalkState->OpInfo->Flags & AML_NAMED)
         {
             if (Op->Common.AmlOpcode == AML_REGION_OP ||
                 Op->Common.AmlOpcode == AML_DATA_REGION_OP)
             {
                 /*
                  * Skip parsing of control method or opregion body,
                  * because we don't have enough info in the first pass
                  * to parse them correctly.
                  *
                  * Completed parsing an OpRegion declaration, we now
                  * know the length.
                  */
                 Op->Named.Length = (UINT32) (ParserState->Aml - Op->Named.Data);
             }
         }
 
         if (WalkState->OpInfo->Flags & AML_CREATE)
         {
             /*
              * Backup to beginning of CreateXXXfield declaration (1 for
              * Opcode)
              *
              * BodyLength is unknown until we parse the body
              */
             Op->Named.Length = (UINT32) (ParserState->Aml - Op->Named.Data);
         }
 
         if (Op->Common.AmlOpcode == AML_BANK_FIELD_OP)
         {
             /*
              * Backup to beginning of BankField declaration
              *
              * BodyLength is unknown until we parse the body
              */
             Op->Named.Length = (UINT32) (ParserState->Aml - Op->Named.Data);
         }
 
         /* This op complete, notify the dispatcher */
 
         if (WalkState->AscendingCallback != NULL)
         {
             WalkState->Op = Op;
             WalkState->Opcode = Op->Common.AmlOpcode;
 
             Status = WalkState->AscendingCallback (WalkState);
             Status = AcpiPsNextParseState (WalkState, Op, Status);
             if (Status == AE_CTRL_PENDING)
             {
                 Status = AE_OK;
             }
             else if ((WalkState->ParseFlags & ACPI_PARSE_MODULE_LEVEL) &&
                 (ACPI_AML_EXCEPTION(Status) || Status == AE_ALREADY_EXISTS ||
                 Status == AE_NOT_FOUND))
             {
                 /*
                  * ACPI_PARSE_MODULE_LEVEL flag means that we are currently
                  * loading a table by executing it as a control method.
                  * However, if we encounter an error while loading the table,
                  * we need to keep trying to load the table rather than
                  * aborting the table load (setting the status to AE_OK
                  * continues the table load). If we get a failure at this
                  * point, it means that the dispatcher got an error while
                  * trying to execute the Op.
                  */
                 Status = AE_OK;
             }
         }
 
         Status = AcpiPsCompleteOp (WalkState, &Op, Status);
         if (ACPI_FAILURE (Status))
         {
             return_ACPI_STATUS (Status);
         }
 
     } /* while ParserState->Aml */
 
     Status = AcpiPsCompleteFinalOp (WalkState, Op, Status);
     return_ACPI_STATUS (Status);
 }

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