From: Bob Moore <robert.moore@xxxxxxxxx> ACPICA commit d586c29a026a6172c1113df4d75fd6d764196e77 Describe 2nd byte of the end_tag resource descriptor. Link: https://github.com/acpica/acpica/commit/d586c29a Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> --- drivers/acpi/acpica/utresrc.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c index d955bf8..517acf8 100644 --- a/drivers/acpi/acpica/utresrc.c +++ b/drivers/acpi/acpica/utresrc.c @@ -239,6 +239,13 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state, return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); } + /* + * Don't attempt to perform any validation on the 2nd byte. + * Although all known ASL compilers insert a zero for the 2nd + * byte, it can also be a checksum (as per the ACPI spec), + * and this is occasionally seen in the field. July 2017. + */ + /* Return the pointer to the end_tag if requested */ if (!user_function) { -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
