ACPICA: Update comments (3effba32) · Commits · 戴 / test

drivers/acpi/namespace/nswalk.c

+25 −21

Original line number	Diff line number	Diff line
		@@ -193,21 +193,28 @@ acpi_ns_walk_namespace(acpi_object_type type,
		acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node,
		child_node);
		if (child_node) {
		/*
		* Found node, Get the type if we are not
		* searching for ANY
		*/

		/* Found node, Get the type if we are not searching for ANY */

		if (type != ACPI_TYPE_ANY) {
		child_type = child_node->type;
		}

		/*
		* 1) Type must match
		* 2) Permanent namespace nodes are OK
		* 3) Ignore temporary nodes unless told otherwise. Typically,
		* the temporary nodes can cause a race condition where they can
		* be deleted during the execution of the user function. Only the
		* debugger namespace dump will examine the temporary nodes.
		*/
		if ((child_type == type) &&
		(!(child_node->flags & ANOBJ_TEMPORARY) \|\|
		(child_node->flags & ANOBJ_TEMPORARY)
		&& (flags & ACPI_NS_WALK_TEMP_NODES))) {
		/*
		* Found a matching node, invoke the user
		* callback function
		* Found a matching node, invoke the user callback function.
		* Unlock the namespace if flag is set.
		*/
		if (flags & ACPI_NS_WALK_UNLOCK) {
		mutex_status =
		@@ -219,8 +226,9 @@ acpi_ns_walk_namespace(acpi_object_type type,
		}
		}

		status = user_function(child_node, level,
		context, return_value);
		status =
		user_function(child_node, level, context,
		return_value);

		if (flags & ACPI_NS_WALK_UNLOCK) {
		mutex_status =
		@@ -254,20 +262,17 @@ acpi_ns_walk_namespace(acpi_object_type type,
		}

		/*
		* Depth first search:
		* Attempt to go down another level in the namespace
		* if we are allowed to. Don't go any further if we
		* have reached the caller specified maximum depth
		* or if the user function has specified that the
		* maximum depth has been reached.
		* Depth first search: Attempt to go down another level in the
		* namespace if we are allowed to. Don't go any further if we have
		* reached the caller specified maximum depth or if the user
		* function has specified that the maximum depth has been reached.
		*/
		if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
		if (acpi_ns_get_next_node
		(ACPI_TYPE_ANY, child_node, NULL)) {
		/*
		* There is at least one child of this
		* node, visit the onde
		*/

		/* There is at least one child of this node, visit it */

		level++;
		parent_node = child_node;
		child_node = NULL;
		@@ -275,9 +280,8 @@ acpi_ns_walk_namespace(acpi_object_type type,
		}
		} else {
		/*
		* No more children of this node (acpi_ns_get_next_node
		* failed), go back upwards in the namespace tree to
		* the node's parent.
		* No more children of this node (acpi_ns_get_next_node failed), go
		* back upwards in the namespace tree to the node's parent.
		*/
		level--;
		child_node = parent_node;

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