Commit e3ec483a authored by Zhang Rui's avatar Zhang Rui
Browse files

ACPI: add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package() 



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: default avatarZhang Rui <rui.zhang@intel.com>
parent 083bf668

drivers/acpi/utils.c

+27 −1
Original line number Diff line number Diff line
@@ -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: