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, 4 insertions, 4 deletions

diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index 45da2bae36c8..11f219743204 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -219,12 +219,12 @@ walk_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
 
         dbg("p2p bridge walk, pci_bus = %x\n", dev->subordinate->number);
         status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-                                     user_function, &child_context, NULL);
+                                     user_function, NULL, &child_context, NULL);
         if (ACPI_FAILURE(status))
                 goto out;
 
         status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-                                     walk_p2p_bridge, &child_context, NULL);
+                                     walk_p2p_bridge, NULL, &child_context, NULL);
 out:
         pci_dev_put(dev);
         return AE_OK;
@@ -277,12 +277,12 @@ walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function)
 
         dbg("root bridge walk, pci_bus = %x\n", pci_bus->number);
         status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-                                     user_function, &context, NULL);
+                                     user_function, NULL, &context, NULL);
         if (ACPI_FAILURE(status))
                 return status;
 
         status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
-                                     walk_p2p_bridge, &context, NULL);
+                                     walk_p2p_bridge, NULL, &context, NULL);
         if (ACPI_FAILURE(status))
                 err("%s: walk_p2p_bridge failure - %d\n", __func__, status);