![Lv Zheng](/assets/img/avatar_default.png)
ACPICA commit b2294cae776f5a66a7697414b21949d307e6856f This patch removes unwanted spaces for typedef. This solution doesn't cover function types. Note that the linuxize result of this commit is very giant and should have many conflicts against the current Linux upstream. Thus it is required to modify the linuxize result of this commit and the commits around it manually in order to have them merged to the Linux upstream. Since this is very costy, we should do this only once, and if we can't ensure to do this only once, we need to revert the Linux code to the wrong indentation result before merging the linuxize result of this commit. Lv Zheng. Link: https://github.com/acpica/acpica/commit/b2294cae Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
222 lines
7 KiB
C
222 lines
7 KiB
C
/******************************************************************************
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*
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* Module Name: exstorob - AML object store support, store to object
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2016, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
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#include "accommon.h"
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#include "acinterp.h"
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#define _COMPONENT ACPI_EXECUTER
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ACPI_MODULE_NAME("exstorob")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_store_buffer_to_buffer
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*
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* PARAMETERS: source_desc - Source object to copy
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* target_desc - Destination object of the copy
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*
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* RETURN: Status
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*
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* DESCRIPTION: Copy a buffer object to another buffer object.
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*
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******************************************************************************/
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acpi_status
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acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc,
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union acpi_operand_object *target_desc)
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{
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u32 length;
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u8 *buffer;
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ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc);
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/* If Source and Target are the same, just return */
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if (source_desc == target_desc) {
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return_ACPI_STATUS(AE_OK);
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}
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/* We know that source_desc is a buffer by now */
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buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer);
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length = source_desc->buffer.length;
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/*
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* If target is a buffer of length zero or is a static buffer,
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* allocate a new buffer of the proper length
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*/
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if ((target_desc->buffer.length == 0) ||
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(target_desc->common.flags & AOPOBJ_STATIC_POINTER)) {
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target_desc->buffer.pointer = ACPI_ALLOCATE(length);
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if (!target_desc->buffer.pointer) {
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return_ACPI_STATUS(AE_NO_MEMORY);
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}
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target_desc->buffer.length = length;
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}
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/* Copy source buffer to target buffer */
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if (length <= target_desc->buffer.length) {
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/* Clear existing buffer and copy in the new one */
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memset(target_desc->buffer.pointer, 0,
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target_desc->buffer.length);
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memcpy(target_desc->buffer.pointer, buffer, length);
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#ifdef ACPI_OBSOLETE_BEHAVIOR
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/*
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* NOTE: ACPI versions up to 3.0 specified that the buffer must be
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* truncated if the string is smaller than the buffer. However, "other"
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* implementations of ACPI never did this and thus became the defacto
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* standard. ACPI 3.0A changes this behavior such that the buffer
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* is no longer truncated.
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*/
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/*
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* OBSOLETE BEHAVIOR:
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* If the original source was a string, we must truncate the buffer,
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* according to the ACPI spec. Integer-to-Buffer and Buffer-to-Buffer
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* copy must not truncate the original buffer.
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*/
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if (original_src_type == ACPI_TYPE_STRING) {
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/* Set the new length of the target */
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target_desc->buffer.length = length;
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}
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#endif
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} else {
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/* Truncate the source, copy only what will fit */
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memcpy(target_desc->buffer.pointer, buffer,
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target_desc->buffer.length);
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ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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"Truncating source buffer from %X to %X\n",
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length, target_desc->buffer.length));
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}
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/* Copy flags */
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target_desc->buffer.flags = source_desc->buffer.flags;
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target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
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return_ACPI_STATUS(AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ex_store_string_to_string
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*
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* PARAMETERS: source_desc - Source object to copy
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* target_desc - Destination object of the copy
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*
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* RETURN: Status
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*
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* DESCRIPTION: Copy a String object to another String object
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*
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******************************************************************************/
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acpi_status
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acpi_ex_store_string_to_string(union acpi_operand_object *source_desc,
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union acpi_operand_object *target_desc)
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{
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u32 length;
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u8 *buffer;
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ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc);
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/* If Source and Target are the same, just return */
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if (source_desc == target_desc) {
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return_ACPI_STATUS(AE_OK);
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}
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/* We know that source_desc is a string by now */
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buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer);
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length = source_desc->string.length;
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/*
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* Replace existing string value if it will fit and the string
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* pointer is not a static pointer (part of an ACPI table)
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*/
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if ((length < target_desc->string.length) &&
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(!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
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/*
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* String will fit in existing non-static buffer.
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* Clear old string and copy in the new one
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*/
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memset(target_desc->string.pointer, 0,
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(acpi_size)target_desc->string.length + 1);
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memcpy(target_desc->string.pointer, buffer, length);
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} else {
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/*
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* Free the current buffer, then allocate a new buffer
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* large enough to hold the value
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*/
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if (target_desc->string.pointer &&
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(!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) {
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/* Only free if not a pointer into the DSDT */
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ACPI_FREE(target_desc->string.pointer);
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}
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target_desc->string.pointer =
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ACPI_ALLOCATE_ZEROED((acpi_size)length + 1);
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if (!target_desc->string.pointer) {
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return_ACPI_STATUS(AE_NO_MEMORY);
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}
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target_desc->common.flags &= ~AOPOBJ_STATIC_POINTER;
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memcpy(target_desc->string.pointer, buffer, length);
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}
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/* Set the new target length */
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target_desc->string.length = length;
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return_ACPI_STATUS(AE_OK);
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}
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