From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Adds ACPICA kernel runtime support to validate contents/format
of the _DSD package, similar to the iASL support. Ported by
Mika Westerberg.
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
---
drivers/acpi/acpica/nsprepkg.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index 68f7258..1b13b92 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -316,6 +316,45 @@ acpi_ns_check_package(struct acpi_evaluate_info *info,
acpi_ns_check_package_list(info, package, elements, count);
break;
+ case ACPI_PTYPE2_UUID_PAIR:
+
+ /* The package must contain pairs of (UUID + type) */
+
+ if (count & 1) {
+ expected_count = count + 1;
+ goto package_too_small;
+ }
+
+ while (count > 0) {
+ status = acpi_ns_check_object_type(info, elements,
+ package->ret_info.
+ object_type1, 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Validate length of the UUID buffer */
+
+ if ((*elements)->buffer.length != 16) {
+ ACPI_WARN_PREDEFINED((AE_INFO,
+ info->full_pathname,
+ info->node_flags,
+ "Invalid length for UUID Buffer"));
+ return (AE_AML_OPERAND_VALUE);
+ }
+
+ status = acpi_ns_check_object_type(info, elements + 1,
+ package->ret_info.
+ object_type2, 0);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ elements += 2;
+ count -= 2;
+ }
+ break;
+
default:
/* Should not get here if predefined info table is correct */
--
1.7.10
--
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