device property: Constify a few fwnode APIs

The fwnode parameter is not altered in the following APIs:

- fwnode_get_next_parent_dev()
- fwnode_is_ancestor_of()
- fwnode_graph_get_endpoint_count()

so constify them.

Reported-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230324112720.71315-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/base/property.c b/drivers/base/property.c
index 35b8f3a4e24b..6a908e9c30f8 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -648,7 +648,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_next_parent);
  *
  * Return: a pointer to the device of the @fwnode's closest ancestor.
  */
-struct device *fwnode_get_next_parent_dev(struct fwnode_handle *fwnode)
+struct device *fwnode_get_next_parent_dev(const struct fwnode_handle *fwnode)
 {
 	struct fwnode_handle *parent;
 	struct device *dev;
@@ -718,7 +718,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_nth_parent);
  *
  * Return: true if @ancestor is an ancestor of @child. Otherwise, returns false.
  */
-bool fwnode_is_ancestor_of(struct fwnode_handle *ancestor, struct fwnode_handle *child)
+bool fwnode_is_ancestor_of(const struct fwnode_handle *ancestor, const struct fwnode_handle *child)
 {
 	struct fwnode_handle *parent;
 
@@ -1235,7 +1235,7 @@ EXPORT_SYMBOL_GPL(fwnode_graph_get_endpoint_by_id);
  * If FWNODE_GRAPH_DEVICE_DISABLED flag is specified, also unconnected endpoints
  * and endpoints connected to disabled devices are counted.
  */
-unsigned int fwnode_graph_get_endpoint_count(struct fwnode_handle *fwnode,
+unsigned int fwnode_graph_get_endpoint_count(const struct fwnode_handle *fwnode,
 					     unsigned long flags)
 {
 	struct fwnode_handle *ep;