/*******************************************************************************
*
- * FUNCTION: acpi_ns_search_one_scope
+ * FUNCTION: acpi_ns_search_node
*
* PARAMETERS: target_name - Ascii ACPI name to search for
- * parent_node - Starting node where search will begin
+ * Node - Starting node where search will begin
* Type - Object type to match
* return_node - Where the matched Named obj is returned
*
* RETURN: Status
*
- * DESCRIPTION: Search a single level of the namespace. Performs a
+ * DESCRIPTION: Search a single level of the namespace. Performs a
* simple search of the specified level, and does not add
* entries or search parents.
*
*
* All namespace searching is linear in this implementation, but
* could be easily modified to support any improved search
- * algorithm. However, the linear search was chosen for simplicity
+ * algorithm. However, the linear search was chosen for simplicity
* and because the trees are small and the other interpreter
* execution overhead is relatively high.
*
- * Note: CPU execution analysis has shown that the AML interpreter spends
- * a very small percentage of its time searching the namespace. Therefore,
- * the linear search seems to be sufficient, as there would seem to be
- * little value in improving the search.
- *
******************************************************************************/
acpi_status
-acpi_ns_search_one_scope(u32 target_name,
- struct acpi_namespace_node *parent_node,
- acpi_object_type type,
- struct acpi_namespace_node **return_node)
+acpi_ns_search_node(u32 target_name,
+ struct acpi_namespace_node *node,
+ acpi_object_type type,
+ struct acpi_namespace_node **return_node)
{
- struct acpi_namespace_node *node;
+ struct acpi_namespace_node *next_node;
- ACPI_FUNCTION_TRACE(ns_search_one_scope);
+ ACPI_FUNCTION_TRACE("ns_search_node");
#ifdef ACPI_DEBUG_OUTPUT
if (ACPI_LV_NAMES & acpi_dbg_level) {
char *scope_name;
- scope_name = acpi_ns_get_external_pathname(parent_node);
+ scope_name = acpi_ns_get_external_pathname(node);
if (scope_name) {
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
"Searching %s (%p) For [%4.4s] (%s)\n",
- scope_name, parent_node,
- ACPI_CAST_PTR(char, &target_name),
+ scope_name, node, ACPI_CAST_PTR(char,
+ &target_name),
acpi_ut_get_type_name(type)));
- ACPI_FREE(scope_name);
+ ACPI_MEM_FREE(scope_name);
}
}
#endif
* Search for name at this namespace level, which is to say that we
* must search for the name among the children of this object
*/
- node = parent_node->child;
- while (node) {
-
+ next_node = node->child;
+ while (next_node) {
/* Check for match against the name */
- if (node->name.integer == target_name) {
-
+ if (next_node->name.integer == target_name) {
/* Resolve a control method alias if any */
- if (acpi_ns_get_type(node) ==
+ if (acpi_ns_get_type(next_node) ==
ACPI_TYPE_LOCAL_METHOD_ALIAS) {
- node =
+ next_node =
ACPI_CAST_PTR(struct acpi_namespace_node,
- node->object);
+ next_node->object);
}
- /* Found matching entry */
-
+ /*
+ * Found matching entry.
+ */
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
"Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n",
ACPI_CAST_PTR(char, &target_name),
- acpi_ut_get_type_name(node->type),
- node,
- acpi_ut_get_node_name(parent_node),
- parent_node));
+ acpi_ut_get_type_name(next_node->
+ type),
+ next_node,
+ acpi_ut_get_node_name(node), node));
- *return_node = node;
+ *return_node = next_node;
return_ACPI_STATUS(AE_OK);
}
* The last entry in the list points back to the parent,
* so a flag is used to indicate the end-of-list
*/
- if (node->flags & ANOBJ_END_OF_PEER_LIST) {
-
+ if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
/* Searched entire list, we are done */
break;
/* Didn't match name, move on to the next peer object */
- node = node->peer;
+ next_node = next_node->peer;
}
/* Searched entire namespace level, not found */
"Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n",
ACPI_CAST_PTR(char, &target_name),
acpi_ut_get_type_name(type),
- acpi_ut_get_node_name(parent_node), parent_node,
- parent_node->child));
+ acpi_ut_get_node_name(node), node, node->child));
return_ACPI_STATUS(AE_NOT_FOUND);
}
* RETURN: Status
*
* DESCRIPTION: Called when a name has not been found in the current namespace
- * level. Before adding it or giving up, ACPI scope rules require
+ * level. Before adding it or giving up, ACPI scope rules require
* searching enclosing scopes in cases identified by acpi_ns_local().
*
* "A name is located by finding the matching name in the current
* name space, and then in the parent name space. If the parent
* name space does not contain the name, the search continues
* recursively until either the name is found or the name space
- * does not have a parent (the root of the name space). This
+ * does not have a parent (the root of the name space). This
* indicates that the name is not found" (From ACPI Specification,
* section 5.3)
*
acpi_status status;
struct acpi_namespace_node *parent_node;
- ACPI_FUNCTION_TRACE(ns_search_parent_tree);
+ ACPI_FUNCTION_TRACE("ns_search_parent_tree");
parent_node = acpi_ns_get_parent_node(node);
*/
while (parent_node) {
/*
- * Search parent scope. Use TYPE_ANY because we don't care about the
+ * Search parent scope. Use TYPE_ANY because we don't care about the
* object type at this point, we only care about the existence of
- * the actual name we are searching for. Typechecking comes later.
+ * the actual name we are searching for. Typechecking comes later.
*/
- status =
- acpi_ns_search_one_scope(target_name, parent_node,
+ status = acpi_ns_search_node(target_name, parent_node,
ACPI_TYPE_ANY, return_node);
if (ACPI_SUCCESS(status)) {
return_ACPI_STATUS(status);
}
- /* Not found here, go up another level (until we reach the root) */
-
+ /*
+ * Not found here, go up another level
+ * (until we reach the root)
+ */
parent_node = acpi_ns_get_parent_node(parent_node);
}
* RETURN: Status
*
* DESCRIPTION: Search for a name segment in a single namespace level,
- * optionally adding it if it is not found. If the passed
+ * optionally adding it if it is not found. If the passed
* Type is not Any and the type previously stored in the
* entry was Any (i.e. unknown), update the stored type.
*
acpi_status status;
struct acpi_namespace_node *new_node;
- ACPI_FUNCTION_TRACE(ns_search_and_enter);
+ ACPI_FUNCTION_TRACE("ns_search_and_enter");
/* Parameter validation */
if (!node || !target_name || !return_node) {
ACPI_ERROR((AE_INFO,
- "Null parameter: Node %p Name %X ReturnNode %p",
+ "Null param: Node %p Name %X return_node %p",
node, target_name, return_node));
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- /*
- * Name must consist of valid ACPI characters. We will repair the name if
- * necessary because we don't want to abort because of this, but we want
- * all namespace names to be printable. A warning message is appropriate.
- *
- * This issue came up because there are in fact machines that exhibit
- * this problem, and we want to be able to enable ACPI support for them,
- * even though there are a few bad names.
- */
+ /* Name must consist of printable characters */
+
if (!acpi_ut_valid_acpi_name(target_name)) {
- target_name = acpi_ut_repair_name(target_name);
-
- /* Report warning only if in strict mode or debug mode */
-
- if (!acpi_gbl_enable_interpreter_slack) {
- ACPI_WARNING((AE_INFO,
- "Found bad character(s) in name, repaired: [%4.4s]\n",
- ACPI_CAST_PTR(char, &target_name)));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_WARN,
- "Found bad character(s) in name, repaired: [%4.4s]\n",
- ACPI_CAST_PTR(char, &target_name)));
- }
+ ACPI_ERROR((AE_INFO, "Bad character in ACPI Name: %X",
+ target_name));
+ return_ACPI_STATUS(AE_BAD_CHARACTER);
}
/* Try to find the name in the namespace level specified by the caller */
*return_node = ACPI_ENTRY_NOT_FOUND;
- status = acpi_ns_search_one_scope(target_name, node, type, return_node);
+ status = acpi_ns_search_node(target_name, node, type, return_node);
if (status != AE_NOT_FOUND) {
/*
* If we found it AND the request specifies that a find is an error,
status = AE_ALREADY_EXISTS;
}
- /* Either found it or there was an error: finished either way */
-
+ /*
+ * Either found it or there was an error
+ * -- finished either way
+ */
return_ACPI_STATUS(status);
}
/*
- * The name was not found. If we are NOT performing the first pass
+ * The name was not found. If we are NOT performing the first pass
* (name entry) of loading the namespace, search the parent tree (all the
* way to the root if necessary.) We don't want to perform the parent
- * search when the namespace is actually being loaded. We want to perform
+ * search when the namespace is actually being loaded. We want to perform
* the search when namespace references are being resolved (load pass 2)
* and during the execution phase.
*/
}
}
- /* In execute mode, just search, never add names. Exit now */
-
+ /*
+ * In execute mode, just search, never add names. Exit now.
+ */
if (interpreter_mode == ACPI_IMODE_EXECUTE) {
ACPI_DEBUG_PRINT((ACPI_DB_NAMES,
"%4.4s Not found in %p [Not adding]\n",
if (!new_node) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
-#ifdef ACPI_ASL_COMPILER
- /*
- * Node is an object defined by an External() statement
- */
- if (flags & ACPI_NS_EXTERNAL) {
- new_node->flags |= ANOBJ_IS_EXTERNAL;
- }
-#endif
/* Install the new object into the parent's list of children */
acpi_ns_install_node(walk_state, node, new_node, type);
*return_node = new_node;
+
return_ACPI_STATUS(AE_OK);
}