netdev - [PATCH net] net: dsa: microchip: Make MDIO bus name unique

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Message-Id: <20241128202743.15248-1-jesse.vangavere@scioteq.com>
Date: Thu, 28 Nov 2024 21:27:43 +0100
From: Jesse Van Gavere <jesseevg@...il.com>
To: netdev@...r.kernel.org,
	woojung.huh@...rochip.com,
	UNGLinuxDriver@...rochip.com,
	andrew@...n.ch,
	olteanv@...il.com
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	Jesse Van Gavere <jesse.vangavere@...oteq.com>
Subject: [PATCH net] net: dsa: microchip: Make MDIO bus name unique

In configurations with 2 or more DSA clusters it will fail to allocate
unique MDIO bus names as only the switch ID is used, fix this by using
a combination of the tree ID and switch ID

Signed-off-by: Jesse Van Gavere <jesse.vangavere@...oteq.com>
---
 drivers/net/dsa/microchip/ksz_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 920443ee8ffd..0d5dbbdd41f8 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -2550,7 +2550,7 @@ static int ksz_mdio_register(struct ksz_device *dev)
 		bus->read = ksz_sw_mdio_read;
 		bus->write = ksz_sw_mdio_write;
 		bus->name = "ksz user smi";
-		snprintf(bus->id, MII_BUS_ID_SIZE, "SMI-%d", ds->index);
+		snprintf(bus->id, MII_BUS_ID_SIZE, "SMI-%d-%d", ds->dst->index, ds->index);
 	}
 
 	ret = ksz_parse_dt_phy_config(dev, bus, mdio_np);
-- 
2.34.1