[PATCH net-next 1/2] of: mdio: warn if deprecated fixed-link binding is used

[Heiner Kallweit <hkallweit1@gmail.com>]

The array-style fixed-link binding has been marked deprecated for more
than 10 yrs, but still there's a number of users. Print a warning when
usage of the deprecated binding is detected.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/mdio/of_mdio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index d8ca63ed8..d35e28dbe 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c
@@ -447,6 +447,8 @@ int of_phy_register_fixed_link(struct device_node *np)
 	/* Old binding */
 	if (of_property_read_u32_array(np, "fixed-link", fixed_link_prop,
 				       ARRAY_SIZE(fixed_link_prop)) == 0) {
+		pr_warn_once("%s uses deprecated array-style fixed-link binding!",
+			     of_node_full_name(np));
 		status.link = 1;
 		status.duplex = fixed_link_prop[1];
 		status.speed  = fixed_link_prop[2];
-- 
2.51.0