From f24b664dc44a4ab4df61db2258cea298eeb43a8e Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 11 Dec 2009 14:57:00 +0800 Subject: ACPICA: Update internal namespace node/handle interfaces This change deletes the unnecessary acpi_ns_convert_entry_to_handle interface and renames the acpi_ns_map_handle_to_node interface to acpi_ns_validate_handle. ACPICA BZ 798. http://www.acpica.org/bugzilla/show_bug.cgi?id=798 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/nsutils.c | 57 +++++++++---------------------------------- 1 file changed, 11 insertions(+), 46 deletions(-) (limited to 'drivers/acpi/acpica/nsutils.c') diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index ea55ab4f984..47d91e668a1 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(); @@ -708,42 +709,6 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) return (ACPI_CAST_PTR(struct acpi_namespace_node, 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 -- cgit