summaryrefslogtreecommitdiffstats
path: root/drivers/acpi
diff options
context:
space:
mode:
authorBob Moore <robert.moore@intel.com>2014-04-04 12:37:26 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-04-20 22:59:37 +0200
commit43d1a62d651233fe4d28f7d9e8f9c13d2a1ad1bc (patch)
tree6475b7612dbb84139386cb09b749f3c4ca3e3146 /drivers/acpi
parent7ed823264845f7c2f14d3278405e593ddfdc50f6 (diff)
downloadop-kernel-dev-43d1a62d651233fe4d28f7d9e8f9c13d2a1ad1bc.zip
op-kernel-dev-43d1a62d651233fe4d28f7d9e8f9c13d2a1ad1bc.tar.gz
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 <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/acpica/exconfig.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 8ba1464..1b734eb 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -576,6 +576,13 @@ 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()
* when it calls acpi_ex_resolve_operands(), the handle is more completely
OpenPOWER on IntegriCloud