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Diffstat (limited to 'drivers/acpi/acpica/nsutils.c')
-rw-r--r--drivers/acpi/acpica/nsutils.c57
1 files changed, 11 insertions, 46 deletions
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index ea55ab4f9849..47d91e668a1b 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -671,24 +671,25 @@ acpi_ns_externalize_name(u32 internal_name_length,
/*******************************************************************************
*
- * FUNCTION: acpi_ns_map_handle_to_node
+ * FUNCTION: acpi_ns_validate_handle
*
- * PARAMETERS: Handle - Handle to be converted to an Node
+ * PARAMETERS: Handle - Handle to be validated and typecast to a
+ * namespace node.
*
- * RETURN: A Name table entry pointer
+ * RETURN: A pointer to a namespace node
*
- * DESCRIPTION: Convert a namespace handle to a real Node
+ * DESCRIPTION: Convert a namespace handle to a namespace node. Handles special
+ * cases for the root node.
*
- * Note: Real integer handles would allow for more verification
+ * NOTE: Real integer handles would allow for more verification
* and keep all pointers within this subsystem - however this introduces
- * more (and perhaps unnecessary) overhead.
- *
- * The current implemenation is basically a placeholder until such time comes
- * that it is needed.
+ * more overhead and has not been necessary to this point. Drivers
+ * holding handles are typically notified before a node becomes invalid
+ * due to a table unload.
*
******************************************************************************/
-struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
+struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle)
{
ACPI_FUNCTION_ENTRY();
@@ -710,42 +711,6 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle)
/*******************************************************************************
*
- * FUNCTION: acpi_ns_convert_entry_to_handle
- *
- * PARAMETERS: Node - Node to be converted to a Handle
- *
- * RETURN: A user handle
- *
- * DESCRIPTION: Convert a real Node to a namespace handle
- *
- ******************************************************************************/
-
-acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node)
-{
-
- /*
- * Simple implementation for now;
- */
- return ((acpi_handle) node);
-
-/* Example future implementation ---------------------
-
- if (!Node)
- {
- return (NULL);
- }
-
- if (Node == acpi_gbl_root_node)
- {
- return (ACPI_ROOT_OBJECT);
- }
-
- return ((acpi_handle) Node);
-------------------------------------------------------*/
-}
-
-/*******************************************************************************
- *
* FUNCTION: acpi_ns_terminate
*
* PARAMETERS: none