linux-kernel - [PATCH v3 4/5] device property: Constify device child node APIs

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Message-Id: <20221004092129.19412-5-andriy.shevchenko@linux.intel.com>
Date:   Tue,  4 Oct 2022 12:21:28 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Prashant Malani <pmalani@...omium.org>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Cc:     Daniel Scally <djrscally@...il.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: [PATCH v3 4/5] device property: Constify device child node APIs

The device parameter is not altered in the device child node APIs,
constify them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
---
 drivers/base/property.c  |  6 +++---
 include/linux/property.h | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/base/property.c b/drivers/base/property.c
index 58b8158add5c..d3ea5f82978f 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -763,7 +763,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_next_available_child_node);
  * @dev: Device to find the next child node for.
  * @child: Handle to one of the device's child nodes or a null handle.
  */
-struct fwnode_handle *device_get_next_child_node(struct device *dev,
+struct fwnode_handle *device_get_next_child_node(const struct device *dev,
 						 struct fwnode_handle *child)
 {
 	const struct fwnode_handle *fwnode = dev_fwnode(dev);
@@ -800,7 +800,7 @@ EXPORT_SYMBOL_GPL(fwnode_get_named_child_node);
  * @dev: Device to find the named child node for.
  * @childname: String to match child node name against.
  */
-struct fwnode_handle *device_get_named_child_node(struct device *dev,
+struct fwnode_handle *device_get_named_child_node(const struct device *dev,
 						  const char *childname)
 {
 	return fwnode_get_named_child_node(dev_fwnode(dev), childname);
@@ -859,7 +859,7 @@ EXPORT_SYMBOL_GPL(fwnode_device_is_available);
  * device_get_child_node_count - return the number of child nodes for device
  * @dev: Device to cound the child nodes for
  */
-unsigned int device_get_child_node_count(struct device *dev)
+unsigned int device_get_child_node_count(const struct device *dev)
 {
 	struct fwnode_handle *child;
 	unsigned int count = 0;
diff --git a/include/linux/property.h b/include/linux/property.h
index 7abb1792044f..472689e53ade 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -114,16 +114,16 @@ struct fwnode_handle *fwnode_get_next_available_child_node(
 	for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\
 	     child = fwnode_get_next_available_child_node(fwnode, child))
 
-struct fwnode_handle *device_get_next_child_node(
-	struct device *dev, struct fwnode_handle *child);
+struct fwnode_handle *device_get_next_child_node(const struct device *dev,
+						 struct fwnode_handle *child);
 
 #define device_for_each_child_node(dev, child)				\
 	for (child = device_get_next_child_node(dev, NULL); child;	\
 	     child = device_get_next_child_node(dev, child))
 
-struct fwnode_handle *fwnode_get_named_child_node(
-	const struct fwnode_handle *fwnode, const char *childname);
-struct fwnode_handle *device_get_named_child_node(struct device *dev,
+struct fwnode_handle *fwnode_get_named_child_node(const struct fwnode_handle *fwnode,
+						  const char *childname);
+struct fwnode_handle *device_get_named_child_node(const struct device *dev,
 						  const char *childname);
 
 struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
@@ -132,7 +132,7 @@ void fwnode_handle_put(struct fwnode_handle *fwnode);
 int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index);
 int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name);
 
-unsigned int device_get_child_node_count(struct device *dev);
+unsigned int device_get_child_node_count(const struct device *dev);
 
 static inline bool device_property_read_bool(struct device *dev,
 					     const char *propname)
-- 
2.35.1