1 files changed, 701 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
new file mode 100644
index 000000000000..3c3802764bfb
--- /dev/null
+++ b/drivers/acpi/acpica/exresop.c
@@ -0,0 +1,701 @@
+
+/******************************************************************************
+ *
+ * Module Name: exresop - AML Interpreter operand/object resolution
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, 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 "amlcode.h"
+#include "acparser.h"
+#include "acinterp.h"
+#include "acnamesp.h"
+
+#define _COMPONENT          ACPI_EXECUTER
+ACPI_MODULE_NAME("exresop")
+
+/* Local prototypes */
+static acpi_status
+acpi_ex_check_object_type(acpi_object_type type_needed,
+                          acpi_object_type this_type, void *object);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_check_object_type
+ *
+ * PARAMETERS:  type_needed         Object type needed
+ *              this_type           Actual object type
+ *              Object              Object pointer
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Check required type against actual type
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ex_check_object_type(acpi_object_type type_needed,
+                          acpi_object_type this_type, void *object)
+{
+        ACPI_FUNCTION_ENTRY();
+
+        if (type_needed == ACPI_TYPE_ANY) {
+
+                /* All types OK, so we don't perform any typechecks */
+
+                return (AE_OK);
+        }
+
+        if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) {
+                /*
+                 * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference
+                 * objects and thus allow them to be targets.  (As per the ACPI
+                 * specification, a store to a constant is a noop.)
+                 */
+                if ((this_type == ACPI_TYPE_INTEGER) &&
+                    (((union acpi_operand_object *)object)->common.
+                     flags & AOPOBJ_AML_CONSTANT)) {
+                        return (AE_OK);
+                }
+        }
+
+        if (type_needed != this_type) {
+                ACPI_ERROR((AE_INFO,
+                            "Needed type [%s], found [%s] %p",
+                            acpi_ut_get_type_name(type_needed),
+                            acpi_ut_get_type_name(this_type), object));
+
+                return (AE_AML_OPERAND_TYPE);
+        }
+
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_resolve_operands
+ *
+ * PARAMETERS:  Opcode              - Opcode being interpreted
+ *              stack_ptr           - Pointer to the operand stack to be
+ *                                    resolved
+ *              walk_state          - Current state
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert multiple input operands to the types required by the
+ *              target operator.
+ *
+ *      Each 5-bit group in arg_types represents one required
+ *      operand and indicates the required Type. The corresponding operand
+ *      will be converted to the required type if possible, otherwise we
+ *      abort with an exception.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ex_resolve_operands(u16 opcode,
+                         union acpi_operand_object ** stack_ptr,
+                         struct acpi_walk_state * walk_state)
+{
+        union acpi_operand_object *obj_desc;
+        acpi_status status = AE_OK;
+        u8 object_type;
+        u32 arg_types;
+        const struct acpi_opcode_info *op_info;
+        u32 this_arg_type;
+        acpi_object_type type_needed;
+        u16 target_op = 0;
+
+        ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode);
+
+        op_info = acpi_ps_get_opcode_info(opcode);
+        if (op_info->class == AML_CLASS_UNKNOWN) {
+                return_ACPI_STATUS(AE_AML_BAD_OPCODE);
+        }
+
+        arg_types = op_info->runtime_args;
+        if (arg_types == ARGI_INVALID_OPCODE) {
+                ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode));
+
+                return_ACPI_STATUS(AE_AML_INTERNAL);
+        }
+
+        ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                          "Opcode %X [%s] RequiredOperandTypes=%8.8X\n",
+                          opcode, op_info->name, arg_types));
+
+        /*
+         * Normal exit is with (arg_types == 0) at end of argument list.
+         * Function will return an exception from within the loop upon
+         * finding an entry which is not (or cannot be converted
+         * to) the required type; if stack underflows; or upon
+         * finding a NULL stack entry (which should not happen).
+         */
+        while (GET_CURRENT_ARG_TYPE(arg_types)) {
+                if (!stack_ptr || !*stack_ptr) {
+                        ACPI_ERROR((AE_INFO, "Null stack entry at %p",
+                                    stack_ptr));
+
+                        return_ACPI_STATUS(AE_AML_INTERNAL);
+                }
+
+                /* Extract useful items */
+
+                obj_desc = *stack_ptr;
+
+                /* Decode the descriptor type */
+
+                switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
+                case ACPI_DESC_TYPE_NAMED:
+
+                        /* Namespace Node */
+
+                        object_type =
+                            ((struct acpi_namespace_node *)obj_desc)->type;
+
+                        /*
+                         * Resolve an alias object. The construction of these objects
+                         * guarantees that there is only one level of alias indirection;
+                         * thus, the attached object is always the aliased namespace node
+                         */
+                        if (object_type == ACPI_TYPE_LOCAL_ALIAS) {
+                                obj_desc =
+                                    acpi_ns_get_attached_object((struct
+                                                                 acpi_namespace_node
+                                                                 *)obj_desc);
+                                *stack_ptr = obj_desc;
+                                object_type =
+                                    ((struct acpi_namespace_node *)obj_desc)->
+                                    type;
+                        }
+                        break;
+
+                case ACPI_DESC_TYPE_OPERAND:
+
+                        /* ACPI internal object */
+
+                        object_type = ACPI_GET_OBJECT_TYPE(obj_desc);
+
+                        /* Check for bad acpi_object_type */
+
+                        if (!acpi_ut_valid_object_type(object_type)) {
+                                ACPI_ERROR((AE_INFO,
+                                            "Bad operand object type [%X]",
+                                            object_type));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+
+                        if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) {
+
+                                /* Validate the Reference */
+
+                                switch (obj_desc->reference.class) {
+                                case ACPI_REFCLASS_DEBUG:
+
+                                        target_op = AML_DEBUG_OP;
+
+                                        /*lint -fallthrough */
+
+                                case ACPI_REFCLASS_ARG:
+                                case ACPI_REFCLASS_LOCAL:
+                                case ACPI_REFCLASS_INDEX:
+                                case ACPI_REFCLASS_REFOF:
+                                case ACPI_REFCLASS_TABLE:       /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */
+                                case ACPI_REFCLASS_NAME:        /* Reference to a named object */
+
+                                        ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                                          "Operand is a Reference, Class [%s] %2.2X\n",
+                                                          acpi_ut_get_reference_name
+                                                          (obj_desc),
+                                                          obj_desc->reference.
+                                                          class));
+                                        break;
+
+                                default:
+
+                                        ACPI_ERROR((AE_INFO,
+                                                    "Unknown Reference Class %2.2X in %p",
+                                                    obj_desc->reference.class,
+                                                    obj_desc));
+
+                                        return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                                }
+                        }
+                        break;
+
+                default:
+
+                        /* Invalid descriptor */
+
+                        ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]",
+                                    obj_desc,
+                                    acpi_ut_get_descriptor_name(obj_desc)));
+
+                        return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                }
+
+                /* Get one argument type, point to the next */
+
+                this_arg_type = GET_CURRENT_ARG_TYPE(arg_types);
+                INCREMENT_ARG_LIST(arg_types);
+
+                /*
+                 * Handle cases where the object does not need to be
+                 * resolved to a value
+                 */
+                switch (this_arg_type) {
+                case ARGI_REF_OR_STRING:        /* Can be a String or Reference */
+
+                        if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
+                             ACPI_DESC_TYPE_OPERAND)
+                            && (ACPI_GET_OBJECT_TYPE(obj_desc) ==
+                                ACPI_TYPE_STRING)) {
+                                /*
+                                 * String found - the string references a named object and
+                                 * must be resolved to a node
+                                 */
+                                goto next_operand;
+                        }
+
+                        /*
+                         * Else not a string - fall through to the normal Reference
+                         * case below
+                         */
+                        /*lint -fallthrough */
+
+                case ARGI_REFERENCE:    /* References: */
+                case ARGI_INTEGER_REF:
+                case ARGI_OBJECT_REF:
+                case ARGI_DEVICE_REF:
+                case ARGI_TARGETREF:    /* Allows implicit conversion rules before store */
+                case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */
+                case ARGI_SIMPLE_TARGET:        /* Name, Local, or Arg - no implicit conversion  */
+
+                        /*
+                         * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE
+                         * A Namespace Node is OK as-is
+                         */
+                        if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) ==
+                            ACPI_DESC_TYPE_NAMED) {
+                                goto next_operand;
+                        }
+
+                        status =
+                            acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE,
+                                                      object_type, obj_desc);
+                        if (ACPI_FAILURE(status)) {
+                                return_ACPI_STATUS(status);
+                        }
+                        goto next_operand;
+
+                case ARGI_DATAREFOBJ:   /* Store operator only */
+
+                        /*
+                         * We don't want to resolve index_op reference objects during
+                         * a store because this would be an implicit de_ref_of operation.
+                         * Instead, we just want to store the reference object.
+                         * -- All others must be resolved below.
+                         */
+                        if ((opcode == AML_STORE_OP) &&
+                            (ACPI_GET_OBJECT_TYPE(*stack_ptr) ==
+                             ACPI_TYPE_LOCAL_REFERENCE)
+                            && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) {
+                                goto next_operand;
+                        }
+                        break;
+
+                default:
+                        /* All cases covered above */
+                        break;
+                }
+
+                /*
+                 * Resolve this object to a value
+                 */
+                status = acpi_ex_resolve_to_value(stack_ptr, walk_state);
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+
+                /* Get the resolved object */
+
+                obj_desc = *stack_ptr;
+
+                /*
+                 * Check the resulting object (value) type
+                 */
+                switch (this_arg_type) {
+                        /*
+                         * For the simple cases, only one type of resolved object
+                         * is allowed
+                         */
+                case ARGI_MUTEX:
+
+                        /* Need an operand of type ACPI_TYPE_MUTEX */
+
+                        type_needed = ACPI_TYPE_MUTEX;
+                        break;
+
+                case ARGI_EVENT:
+
+                        /* Need an operand of type ACPI_TYPE_EVENT */
+
+                        type_needed = ACPI_TYPE_EVENT;
+                        break;
+
+                case ARGI_PACKAGE:      /* Package */
+
+                        /* Need an operand of type ACPI_TYPE_PACKAGE */
+
+                        type_needed = ACPI_TYPE_PACKAGE;
+                        break;
+
+                case ARGI_ANYTYPE:
+
+                        /* Any operand type will do */
+
+                        type_needed = ACPI_TYPE_ANY;
+                        break;
+
+                case ARGI_DDBHANDLE:
+
+                        /* Need an operand of type ACPI_TYPE_DDB_HANDLE */
+
+                        type_needed = ACPI_TYPE_LOCAL_REFERENCE;
+                        break;
+
+                        /*
+                         * The more complex cases allow multiple resolved object types
+                         */
+                case ARGI_INTEGER:
+
+                        /*
+                         * Need an operand of type ACPI_TYPE_INTEGER,
+                         * But we can implicitly convert from a STRING or BUFFER
+                         * Aka - "Implicit Source Operand Conversion"
+                         */
+                        status =
+                            acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16);
+                        if (ACPI_FAILURE(status)) {
+                                if (status == AE_TYPE) {
+                                        ACPI_ERROR((AE_INFO,
+                                                    "Needed [Integer/String/Buffer], found [%s] %p",
+                                                    acpi_ut_get_object_type_name
+                                                    (obj_desc), obj_desc));
+
+                                        return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                                }
+
+                                return_ACPI_STATUS(status);
+                        }
+
+                        if (obj_desc != *stack_ptr) {
+                                acpi_ut_remove_reference(obj_desc);
+                        }
+                        goto next_operand;
+
+                case ARGI_BUFFER:
+
+                        /*
+                         * Need an operand of type ACPI_TYPE_BUFFER,
+                         * But we can implicitly convert from a STRING or INTEGER
+                         * Aka - "Implicit Source Operand Conversion"
+                         */
+                        status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr);
+                        if (ACPI_FAILURE(status)) {
+                                if (status == AE_TYPE) {
+                                        ACPI_ERROR((AE_INFO,
+                                                    "Needed [Integer/String/Buffer], found [%s] %p",
+                                                    acpi_ut_get_object_type_name
+                                                    (obj_desc), obj_desc));
+
+                                        return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                                }
+
+                                return_ACPI_STATUS(status);
+                        }
+
+                        if (obj_desc != *stack_ptr) {
+                                acpi_ut_remove_reference(obj_desc);
+                        }
+                        goto next_operand;
+
+                case ARGI_STRING:
+
+                        /*
+                         * Need an operand of type ACPI_TYPE_STRING,
+                         * But we can implicitly convert from a BUFFER or INTEGER
+                         * Aka - "Implicit Source Operand Conversion"
+                         */
+                        status = acpi_ex_convert_to_string(obj_desc, stack_ptr,
+                                                           ACPI_IMPLICIT_CONVERT_HEX);
+                        if (ACPI_FAILURE(status)) {
+                                if (status == AE_TYPE) {
+                                        ACPI_ERROR((AE_INFO,
+                                                    "Needed [Integer/String/Buffer], found [%s] %p",
+                                                    acpi_ut_get_object_type_name
+                                                    (obj_desc), obj_desc));
+
+                                        return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                                }
+
+                                return_ACPI_STATUS(status);
+                        }
+
+                        if (obj_desc != *stack_ptr) {
+                                acpi_ut_remove_reference(obj_desc);
+                        }
+                        goto next_operand;
+
+                case ARGI_COMPUTEDATA:
+
+                        /* Need an operand of type INTEGER, STRING or BUFFER */
+
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_INTEGER:
+                        case ACPI_TYPE_STRING:
+                        case ACPI_TYPE_BUFFER:
+
+                                /* Valid operand */
+                                break;
+
+                        default:
+                                ACPI_ERROR((AE_INFO,
+                                            "Needed [Integer/String/Buffer], found [%s] %p",
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc), obj_desc));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+                        goto next_operand;
+
+                case ARGI_BUFFER_OR_STRING:
+
+                        /* Need an operand of type STRING or BUFFER */
+
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_STRING:
+                        case ACPI_TYPE_BUFFER:
+
+                                /* Valid operand */
+                                break;
+
+                        case ACPI_TYPE_INTEGER:
+
+                                /* Highest priority conversion is to type Buffer */
+
+                                status =
+                                    acpi_ex_convert_to_buffer(obj_desc,
+                                                              stack_ptr);
+                                if (ACPI_FAILURE(status)) {
+                                        return_ACPI_STATUS(status);
+                                }
+
+                                if (obj_desc != *stack_ptr) {
+                                        acpi_ut_remove_reference(obj_desc);
+                                }
+                                break;
+
+                        default:
+                                ACPI_ERROR((AE_INFO,
+                                            "Needed [Integer/String/Buffer], found [%s] %p",
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc), obj_desc));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+                        goto next_operand;
+
+                case ARGI_DATAOBJECT:
+                        /*
+                         * ARGI_DATAOBJECT is only used by the size_of operator.
+                         * Need a buffer, string, package, or ref_of reference.
+                         *
+                         * The only reference allowed here is a direct reference to
+                         * a namespace node.
+                         */
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_PACKAGE:
+                        case ACPI_TYPE_STRING:
+                        case ACPI_TYPE_BUFFER:
+                        case ACPI_TYPE_LOCAL_REFERENCE:
+
+                                /* Valid operand */
+                                break;
+
+                        default:
+                                ACPI_ERROR((AE_INFO,
+                                            "Needed [Buffer/String/Package/Reference], found [%s] %p",
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc), obj_desc));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+                        goto next_operand;
+
+                case ARGI_COMPLEXOBJ:
+
+                        /* Need a buffer or package or (ACPI 2.0) String */
+
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_PACKAGE:
+                        case ACPI_TYPE_STRING:
+                        case ACPI_TYPE_BUFFER:
+
+                                /* Valid operand */
+                                break;
+
+                        default:
+                                ACPI_ERROR((AE_INFO,
+                                            "Needed [Buffer/String/Package], found [%s] %p",
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc), obj_desc));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+                        goto next_operand;
+
+                case ARGI_REGION_OR_BUFFER:     /* Used by Load() only */
+
+                        /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */
+
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_BUFFER:
+                        case ACPI_TYPE_REGION:
+
+                                /* Valid operand */
+                                break;
+
+                        default:
+                                ACPI_ERROR((AE_INFO,
+                                            "Needed [Region/Buffer], found [%s] %p",
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc), obj_desc));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+                        goto next_operand;
+
+                case ARGI_DATAREFOBJ:
+
+                        /* Used by the Store() operator only */
+
+                        switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
+                        case ACPI_TYPE_INTEGER:
+                        case ACPI_TYPE_PACKAGE:
+                        case ACPI_TYPE_STRING:
+                        case ACPI_TYPE_BUFFER:
+                        case ACPI_TYPE_BUFFER_FIELD:
+                        case ACPI_TYPE_LOCAL_REFERENCE:
+                        case ACPI_TYPE_LOCAL_REGION_FIELD:
+                        case ACPI_TYPE_LOCAL_BANK_FIELD:
+                        case ACPI_TYPE_LOCAL_INDEX_FIELD:
+                        case ACPI_TYPE_DDB_HANDLE:
+
+                                /* Valid operand */
+                                break;
+
+                        default:
+
+                                if (acpi_gbl_enable_interpreter_slack) {
+                                        /*
+                                         * Enable original behavior of Store(), allowing any and all
+                                         * objects as the source operand.  The ACPI spec does not
+                                         * allow this, however.
+                                         */
+                                        break;
+                                }
+
+                                if (target_op == AML_DEBUG_OP) {
+
+                                        /* Allow store of any object to the Debug object */
+
+                                        break;
+                                }
+
+                                ACPI_ERROR((AE_INFO,
+                                            "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p",
+                                            acpi_ut_get_object_type_name
+                                            (obj_desc), obj_desc));
+
+                                return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
+                        }
+                        goto next_operand;
+
+                default:
+
+                        /* Unknown type */
+
+                        ACPI_ERROR((AE_INFO,
+                                    "Internal - Unknown ARGI (required operand) type %X",
+                                    this_arg_type));
+
+                        return_ACPI_STATUS(AE_BAD_PARAMETER);
+                }
+
+                /*
+                 * Make sure that the original object was resolved to the
+                 * required object type (Simple cases only).
+                 */
+                status = acpi_ex_check_object_type(type_needed,
+                                                   ACPI_GET_OBJECT_TYPE
+                                                   (*stack_ptr), *stack_ptr);
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+
+              next_operand:
+                /*
+                 * If more operands needed, decrement stack_ptr to point
+                 * to next operand on stack
+                 */
+                if (GET_CURRENT_ARG_TYPE(arg_types)) {
+                        stack_ptr--;
+                }
+        }
+
+        ACPI_DUMP_OPERANDS(walk_state->operands,
+                           acpi_ps_get_opcode_name(opcode),
+                           walk_state->num_operands);
+
+        return_ACPI_STATUS(status);
+}