ACPICA: Add post-order callback to acpi_walk_namespace

The existing interface only has a pre-order callback. This change
adds an additional parameter for a post-order callback which will
be more useful for bus scans. ACPICA BZ 779.

Also update the external calls to acpi_walk_namespace.

http://www.acpica.org/bugzilla/show_bug.cgi?id=779

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 0e7efeacf6cb..f9b8b28ad802 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -154,7 +154,8 @@ acpi_status
 acpi_walk_namespace(acpi_object_type type,
                     acpi_handle start_object,
                     u32 max_depth,
-                    acpi_walk_callback user_function,
+                    acpi_walk_callback pre_order_visit,
+                    acpi_walk_callback post_order_visit,
                     void *context, void **return_value);
 
 acpi_status