[PATCH v9 02/12] software node: Make argument to to_software_node const

Sakari Ailus
2019-10-03T12:33:09Z

to_software_node() does not need to modify the fwnode_handle it operates
on; therefore make it const. This allows passing a const fwnode_handle to
to_software_node().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
drivers/base/swnode.c | 4 ++--
include/linux/property.h | 3 ++-
2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index a7cb41812cfda..951e7efd47c23 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -71,9 +71,9 @@ software_node_to_swnode(const struct software_node *node)
return swnode;
}

-const struct software_node *to_software_node(struct fwnode_handle *fwnode)
+const struct software_node *to_software_node(const struct fwnode_handle *fwnode)
{
- struct swnode *swnode = to_swnode(fwnode);
+ const struct swnode *swnode = to_swnode(fwnode);

return swnode ? swnode->node : NULL;
}
diff --git a/include/linux/property.h b/include/linux/property.h
index 5a910ad795910..421c76e53708d 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -418,7 +418,8 @@ struct software_node {
};

bool is_software_node(const struct fwnode_handle *fwnode);
-const struct software_node *to_software_node(struct fwnode_handle *fwnode);
+const struct software_node *
+to_software_node(const struct fwnode_handle *fwnode);
struct fwnode_handle *software_node_fwnode(const struct software_node *node);

int software_node_register_nodes(const struct software_node *nodes);
--
2.20.1