[PATCH 03/19] ACPI: add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package()
From: Zhang Rui <rui.zhang@intel.com>
Date: 2014-09-18 01:54:19
Also in:
linux-acpi
Subsystem:
acpi, the rest · Maintainers:
"Rafael J. Wysocki", Linus Torvalds
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> --- drivers/acpi/utils.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 07c8c5a..1ed7aba 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c@@ -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:
--
1.8.3.2