diff options
| -rw-r--r-- | drivers/acpi/acpica/exconfig.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index f85c6f3271f6..2373a7492151 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -490,6 +490,17 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) ACPI_WARNING((AE_INFO, "Received request to unload an ACPI table")); /* + * May 2018: Unload is no longer supported for the following reasons: + * 1) A correct implementation on some hosts may not be possible. + * 2) Other ACPI implementations do not correctly/fully support it. + * 3) It requires host device driver support which does not exist. + * (To properly support namespace unload out from underneath.) + * 4) This AML operator has never been seen in the field. + */ + ACPI_EXCEPTION((AE_INFO, AE_NOT_IMPLEMENTED, + "AML Unload operator is not supported")); + + /* * Validate the handle * Although the handle is partially validated in acpi_ex_reconfiguration() * when it calls acpi_ex_resolve_operands(), the handle is more completely |