From: Bob Moore Date: Fri, 4 Apr 2014 04:37:26 +0000 (+0800) Subject: ACPICA: Unload operator: Emit a warning if and when it is ever used. X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=43d1a62d651233fe4d28f7d9e8f9c13d2a1ad1bc;p=deliverable%2Flinux.git ACPICA: Unload operator: Emit a warning if and when it is ever used. We would like to see the ASL for any machine that uses this operator, so emit at least a warning to hopefully draw some attention. Signed-off-by: Bob Moore Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 8ba1464efd11..1b734eb7c0c0 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -575,6 +575,13 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) ACPI_FUNCTION_TRACE(ex_unload_table); + /* + * Temporarily emit a warning so that the ASL for the machine can be + * hopefully obtained. This is to say that the Unload() operator is + * extremely rare if not completely unused. + */ + ACPI_WARNING((AE_INFO, "Received request to unload an ACPI table")); + /* * Validate the handle * Although the handle is partially validated in acpi_ex_reconfiguration()