On Friday, August 29, 2014 09:32:42 AM Lv Zheng wrote:
> From: Mika Westerberg <[email protected]>
>
> 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 <[email protected]>
> Signed-off-by: Bob Moore <[email protected]>
> Signed-off-by: Lv Zheng <[email protected]>
Queued up for 3.17-rc4, thanks!
> ---
> 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 */
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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