netdev - [PATCH net-next v2 2/2] net: phylink: warn if deprecated array-style fixed-link binding is used

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Message-ID: <3b6ea0f8-6cd2-4a57-92ab-707b71b33992@gmail.com>
Date: Thu, 11 Sep 2025 21:20:48 +0200
From: Heiner Kallweit <hkallweit1@...il.com>
To: Russell King - ARM Linux <linux@...linux.org.uk>,
 Andrew Lunn <andrew@...n.ch>, Andrew Lunn <andrew+netdev@...n.ch>,
 Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
 Eric Dumazet <edumazet@...gle.com>, David Miller <davem@...emloft.net>
Cc: Krzysztof Kozlowski <krzk@...nel.org>,
 "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next v2 2/2] net: phylink: warn if deprecated array-style
 fixed-link binding is used

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@...il.com>
---
v2:
- use %pfw printk specifier
---
 drivers/net/phy/phylink.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 1988b7d20..0524dcc1b 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -702,6 +702,9 @@ static int phylink_parse_fixedlink(struct phylink *pl,
 			return -EINVAL;
 		}
 
+		phylink_warn(pl, "%pfw uses deprecated array-style fixed-link binding!",
+			     fwnode);
+
 		ret = fwnode_property_read_u32_array(fwnode, "fixed-link",
 						     prop, ARRAY_SIZE(prop));
 		if (!ret) {
-- 
2.51.0