netdev - [PATCH net-next 3/3] net: phy: remove modalias-based mdio bus matching

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Message-ID: <ce1c6df0-4785-4b28-8322-32dc6bceea18@gmail.com>
Date: Sat, 31 Jan 2026 18:40:00 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Andrew Lunn <andrew@...n.ch>, Andrew Lunn <andrew+netdev@...n.ch>,
 Russell King - ARM Linux <linux@...linux.org.uk>,
 Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, David Miller <davem@...emloft.net>,
 Simon Horman <horms@...nel.org>,
 Michael Hennerich <michael.hennerich@...log.com>,
 Alexandru Tachici <alexandru.tachici@...log.com>,
 Vladimir Oltean <olteanv@...il.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next 3/3] net: phy: remove modalias-based mdio bus
 matching

Last user dsa_loop has been migrated away from modalias-based matching,
so we can remove this feature now. It was the only user of MDIO_NAME_SIZE,
so remove also this constant.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/phy/mdio_device.c   | 13 -------------
 include/linux/mdio.h            |  1 -
 include/linux/mod_devicetable.h |  1 -
 3 files changed, 15 deletions(-)

diff --git a/drivers/net/phy/mdio_device.c b/drivers/net/phy/mdio_device.c
index 6e90ed42cd9..65636070a22 100644
--- a/drivers/net/phy/mdio_device.c
+++ b/drivers/net/phy/mdio_device.c
@@ -36,18 +36,6 @@ static void mdio_device_release(struct device *dev)
 	kfree(to_mdio_device(dev));
 }
 
-static int mdio_device_bus_match(struct device *dev,
-				 const struct device_driver *drv)
-{
-	struct mdio_device *mdiodev = to_mdio_device(dev);
-	const struct mdio_driver *mdiodrv = to_mdio_driver(drv);
-
-	if (mdiodrv->mdiodrv.flags & MDIO_DEVICE_IS_PHY)
-		return 0;
-
-	return strcmp(mdiodev->modalias, drv->name) == 0;
-}
-
 struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr)
 {
 	struct mdio_device *mdiodev;
@@ -60,7 +48,6 @@ struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr)
 	mdiodev->dev.release = mdio_device_release;
 	mdiodev->dev.parent = &bus->dev;
 	mdiodev->dev.bus = &mdio_bus_type;
-	mdiodev->bus_match = mdio_device_bus_match;
 	mdiodev->device_free = mdio_device_free;
 	mdiodev->device_remove = mdio_device_remove;
 	mdiodev->bus = bus;
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index 42d6d47e445..7ad7ce48f53 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -29,7 +29,6 @@ struct mdio_device {
 	struct device dev;
 
 	struct mii_bus *bus;
-	char modalias[MDIO_NAME_SIZE];
 
 	int (*bus_match)(struct device *dev, const struct device_driver *drv);
 	void (*device_free)(struct mdio_device *mdiodev);
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 24eb5a88a5c..5b1725fe970 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -609,7 +609,6 @@ struct platform_device_id {
 	kernel_ulong_t driver_data;
 };
 
-#define MDIO_NAME_SIZE		32
 #define MDIO_MODULE_PREFIX	"mdio:"
 
 #define MDIO_ID_FMT "%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u"
-- 
2.52.0