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| author | Zhang Rui <rui.zhang@intel.com> | 2014-03-16 17:34:16 +0400 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2014-10-10 09:57:08 +0400 |
| commit | e3ec483a7e24c6ebb5eb763ee56c65c239701066 (patch) | |
| tree | 77f1e5067ae9d51672f3ab5b10c9695acb8fdc9f /drivers/acpi/utils.c | |
| parent | 083bf668cb70e47b84db64856606e94beac87f01 (diff) | |
| download | linux-e3ec483a7e24c6ebb5eb763ee56c65c239701066.tar.xz | |
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: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/acpi/utils.c')
| -rw-r--r-- | drivers/acpi/utils.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 07c8c5a5ee95..1ed7aba99d8d 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: |