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ACPI: add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package()

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Add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package(),
so that we can use this helper for more cases like _ART/_TRT.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Zhang Rui 2014-03-16 21:34:16 +08:00
parent 083bf668cb
commit e3ec483a7e
1 changed files with 27 additions and 1 deletions
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28
drivers/acpi/utils.c
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@ -149,6 +149,21 @@ acpi_extract_package(union acpi_object *package,
break;
}
break;
case ACPI_TYPE_LOCAL_REFERENCE:
switch (format_string[i]) {
case 'R':
size_required += sizeof(void *);
tail_offset += sizeof(void *);
break;
default:
printk(KERN_WARNING PREFIX "Invalid package element"
" [%d] got reference,"
" expecting [%c]\n",
i, format_string[i]);
return AE_BAD_DATA;
break;
}
break;
case ACPI_TYPE_PACKAGE:
default:
@ -247,7 +262,18 @@ acpi_extract_package(union acpi_object *package,
break;
}
break;
case ACPI_TYPE_LOCAL_REFERENCE:
switch (format_string[i]) {
case 'R':
*(void **)head =
(void *)element->reference.handle;
head += sizeof(void *);
break;
default:
/* Should never get here */
break;
}
break;
case ACPI_TYPE_PACKAGE:
/* TBD: handle nested packages... */
default: