From: Jakub Kicinski <kuba@kernel.org>
To: Buday Csaba <buday.csaba@prolan.hu>
Cc: Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next 1/1] net: mdio: reset PHY before attempting to access ID register
Date: Tue, 25 Nov 2025 18:43:35 -0800 [thread overview]
Message-ID: <20251125184335.040f015e@kernel.org> (raw)
In-Reply-To: <6cb97b7bfd92d8dc1c1c00662114ece03b6d2913.1764069248.git.buday.csaba@prolan.hu>
On Tue, 25 Nov 2025 12:15:51 +0100 Buday Csaba wrote:
> When the ID of an Ethernet PHY is not provided by the 'compatible'
> string in the device tree, its actual ID is read via the MDIO bus.
> For some PHYs this could be unsafe, since a hard reset may be
> necessary to safely access the MDIO registers.
You may be missing exports because it doesn't build with allmodconfig:
ERROR: modpost: "mdio_device_register_reset" [drivers/net/mdio/fwnode_mdio.ko] undefined!
ERROR: modpost: "mdio_device_unregister_reset" [drivers/net/mdio/fwnode_mdio.ko] undefined!
--
pw-bot: cr
next prev parent reply other threads:[~2025-11-26 2:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-25 11:15 [PATCH net-next 1/1] net: mdio: reset PHY before attempting to access ID register Buday Csaba
2025-11-26 2:43 ` Jakub Kicinski [this message]
2025-11-26 7:03 ` Buday Csaba
2025-11-27 11:17 ` Buday Csaba
2025-11-27 15:56 ` Andrew Lunn
2025-11-26 15:17 ` kernel test robot
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