linux-kernel - [PATCH net-next v4 04/10] net: usb: lan78xx: improve error reporting on PHY attach failure

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Message-Id: <20250318093410.3047828-5-o.rempel@pengutronix.de>
Date: Tue, 18 Mar 2025 10:34:04 +0100
From: Oleksij Rempel <o.rempel@...gutronix.de>
To: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Woojung Huh <woojung.huh@...rochip.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Russell King <rmk+kernel@...linux.org.uk>,
	Thangaraj Samynathan <Thangaraj.S@...rochip.com>,
	Rengarajan Sundararajan <Rengarajan.S@...rochip.com>
Cc: Oleksij Rempel <o.rempel@...gutronix.de>,
	kernel@...gutronix.de,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	UNGLinuxDriver@...rochip.com,
	Phil Elwell <phil@...pberrypi.org>,
	Maxime Chevallier <maxime.chevallier@...tlin.com>,
	Simon Horman <horms@...nel.org>
Subject: [PATCH net-next v4 04/10] net: usb: lan78xx: improve error reporting on PHY attach failure

Include error code in the log message when PHY attachment fails,
providing better debugging information.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
changes v3:
- update commit message
---
 drivers/net/usb/lan78xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index e54b1ac2c4fc..d2bc6cbdbb66 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2693,8 +2693,8 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
 
 	ret = phylink_connect_phy(dev->phylink, phydev);
 	if (ret) {
-		netdev_err(dev->net, "can't attach PHY to %s\n",
-			   dev->mdiobus->id);
+		netdev_err(dev->net, "can't attach PHY to %s, error %pe\n",
+			   dev->mdiobus->id, ERR_PTR(ret));
 		return -EIO;
 	}
 
-- 
2.39.5