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 <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index ab83919..14cef45 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -354,9 +354,7 @@
const char *internal_name,
u32 * converted_name_length, char **converted_name);
-struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle);
-
-acpi_handle acpi_ns_convert_entry_to_handle(struct acpi_namespace_node *node);
+struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle);
void acpi_ns_terminate(void);
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 0bc807c..5336d91 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -718,7 +718,7 @@
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
@@ -1087,7 +1087,7 @@
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
return (AE_BAD_PARAMETER);
}
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 10b8543..2fe0809 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -259,7 +259,7 @@
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(device);
+ node = acpi_ns_validate_handle(device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -425,7 +425,7 @@
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(device);
+ node = acpi_ns_validate_handle(device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 4721f58..eed7a38 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -610,7 +610,7 @@
return (status);
}
- node = acpi_ns_map_handle_to_node(gpe_device);
+ node = acpi_ns_validate_handle(gpe_device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -698,7 +698,7 @@
return (status);
}
- node = acpi_ns_map_handle_to_node(gpe_device);
+ node = acpi_ns_validate_handle(gpe_device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 7c3d2d3..c98aa7c 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -89,7 +89,7 @@
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(device);
+ node = acpi_ns_validate_handle(device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -155,7 +155,7 @@
/* Convert and validate the device handle */
- node = acpi_ns_map_handle_to_node(device);
+ node = acpi_ns_validate_handle(device);
if (!node ||
((node->type != ACPI_TYPE_DEVICE) &&
(node->type != ACPI_TYPE_PROCESSOR) &&
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 2deb986..e37836e 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -180,7 +180,7 @@
return (AE_OK);
}
- this_node = acpi_ns_map_handle_to_node(obj_handle);
+ this_node = acpi_ns_validate_handle(obj_handle);
if (!this_node) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
obj_handle));
diff --git a/drivers/acpi/acpica/nsnames.c b/drivers/acpi/acpica/nsnames.c
index af8e6bc..8f9a487 100644
--- a/drivers/acpi/acpica/nsnames.c
+++ b/drivers/acpi/acpica/nsnames.c
@@ -232,7 +232,7 @@
ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle);
- node = acpi_ns_map_handle_to_node(target_handle);
+ node = acpi_ns_validate_handle(target_handle);
if (!node) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index ea55ab4..47d91e6 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -671,24 +671,25 @@
/*******************************************************************************
*
- * 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 @@
/*******************************************************************************
*
- * 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
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index f2bd1da..f0c0892 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -190,7 +190,7 @@
/* Convert and validate the device handle */
- info->prefix_node = acpi_ns_map_handle_to_node(handle);
+ info->prefix_node = acpi_ns_validate_handle(handle);
if (!info->prefix_node) {
status = AE_BAD_PARAMETER;
goto cleanup;
@@ -552,7 +552,7 @@
return (status);
}
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return (status);
@@ -729,7 +729,7 @@
/* Convert and validate the handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -775,7 +775,7 @@
/* Convert and validate the handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -822,7 +822,7 @@
/* Convert and validate the handle */
- node = acpi_ns_map_handle_to_node(obj_handle);
+ node = acpi_ns_validate_handle(obj_handle);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index ddc84af..e611dd9 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -93,7 +93,7 @@
/* Convert a parent handle to a prefix node */
if (parent) {
- prefix_node = acpi_ns_map_handle_to_node(parent);
+ prefix_node = acpi_ns_validate_handle(parent);
if (!prefix_node) {
return (AE_BAD_PARAMETER);
}
@@ -114,7 +114,7 @@
if (!ACPI_STRCMP(pathname, ACPI_NS_ROOT_PATH)) {
*ret_handle =
- acpi_ns_convert_entry_to_handle(acpi_gbl_root_node);
+ ACPI_CAST_PTR(acpi_handle, acpi_gbl_root_node);
return (AE_OK);
}
} else if (!prefix_node) {
@@ -129,7 +129,7 @@
status =
acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, &node);
if (ACPI_SUCCESS(status)) {
- *ret_handle = acpi_ns_convert_entry_to_handle(node);
+ *ret_handle = ACPI_CAST_PTR(acpi_handle, node);
}
return (status);
@@ -186,7 +186,7 @@
return (status);
}
- node = acpi_ns_map_handle_to_node(handle);
+ node = acpi_ns_validate_handle(handle);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -291,7 +291,7 @@
goto cleanup;
}
- node = acpi_ns_map_handle_to_node(handle);
+ node = acpi_ns_validate_handle(handle);
if (!node) {
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (AE_BAD_PARAMETER);
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 4071bad..0cc6ba0 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -79,7 +79,7 @@
/* Convert and validate the handle */
- node = acpi_ns_map_handle_to_node(handle);
+ node = acpi_ns_validate_handle(handle);
if (!node) {
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (AE_BAD_PARAMETER);
@@ -132,7 +132,7 @@
/* Convert and validate the handle */
- node = acpi_ns_map_handle_to_node(handle);
+ node = acpi_ns_validate_handle(handle);
if (!node) {
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return (AE_BAD_PARAMETER);
@@ -182,7 +182,7 @@
/* Convert and validate the handle */
- node = acpi_ns_map_handle_to_node(handle);
+ node = acpi_ns_validate_handle(handle);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -191,7 +191,7 @@
/* Get the parent entry */
parent_node = acpi_ns_get_parent_node(node);
- *ret_handle = acpi_ns_convert_entry_to_handle(parent_node);
+ *ret_handle = ACPI_CAST_PTR(acpi_handle, parent_node);
/* Return exception if parent is null */
@@ -251,7 +251,7 @@
/* Start search at the beginning of the specified scope */
- parent_node = acpi_ns_map_handle_to_node(parent);
+ parent_node = acpi_ns_validate_handle(parent);
if (!parent_node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -260,7 +260,7 @@
/* Non-null handle, ignore the parent */
/* Convert and validate the handle */
- child_node = acpi_ns_map_handle_to_node(child);
+ child_node = acpi_ns_validate_handle(child);
if (!child_node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
@@ -276,7 +276,7 @@
}
if (ret_handle) {
- *ret_handle = acpi_ns_convert_entry_to_handle(node);
+ *ret_handle = ACPI_CAST_PTR(acpi_handle, node);
}
unlock_and_exit:
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 395212b..f27feb4 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -104,7 +104,7 @@
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- node = acpi_ns_map_handle_to_node(device_handle);
+ node = acpi_ns_validate_handle(device_handle);
if (!node) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}