From: Andrew Lunn <andrew@lunn.ch>
To: Markus Stockhausen <markus.stockhausen@gmx.de>
Cc: hkallweit1@gmail.com, linux@armlinux.org.uk, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
netdev@vger.kernel.org, chris.packham@alliedtelesis.co.nz,
robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH net-next v4 4/5] net: mdio: realtek-rtl9300: reject duplicate MDIO bus IDs
Date: Mon, 14 Sep 2026 18:44:27 +0200 [thread overview]
Message-ID: <ae4e9125-fe9f-4c59-891f-5843a2198cc7@lunn.ch> (raw)
In-Reply-To: <20260912130451.3757276-5-markus.stockhausen@gmx.de>
On Sat, Sep 12, 2026 at 03:04:50PM +0200, Markus Stockhausen wrote:
> The reg property identifies the hardware MDIO bus and is used as an
> index into the per-bus state. However, duplicate bus IDs are currently
> not rejected explicitly and only fail later during MDIO bus
> registration due to the duplicate bus ID.
>
> Keep track of successfully registered buses and reject a duplicate reg
> value before allocating another bus. For this use the already existing
> but currently unused priv->bus[] property.
>
> Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2026-09-14 16:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-12 13:04 [PATCH net-next v4 0/5] net: mdio: realtek-rtl9300: add bus frequency handling Markus Stockhausen
2026-09-12 13:04 ` [PATCH net-next v4 1/5] dt-bindings: net: realtek,rtl9301-mdio: restrict MDIO buses by family Markus Stockhausen
2026-09-16 13:35 ` netdev-bot+sashiko
2026-09-24 14:46 ` Rob Herring
2026-09-12 13:04 ` [PATCH net-next v4 2/5] dt-bindings: net: realtek,rtl9301-mdio: add clock-frequency Markus Stockhausen
2026-09-16 13:35 ` netdev-bot+sashiko
2026-09-24 14:43 ` Rob Herring
2026-09-12 13:04 ` [PATCH net-next v4 3/5] net: mdio: realtek-rtl9300: convert "fwnode" left-overs to "of" Markus Stockhausen
2026-09-14 16:30 ` Andrew Lunn
2026-09-12 13:04 ` [PATCH net-next v4 4/5] net: mdio: realtek-rtl9300: reject duplicate MDIO bus IDs Markus Stockhausen
2026-09-14 16:31 ` Andrew Lunn
2026-09-14 16:44 ` Andrew Lunn [this message]
2026-09-16 13:35 ` netdev-bot+sashiko
2026-09-12 13:04 ` [PATCH net-next v4 5/5] net: mdio: realtek-rtl9300: support non-default clock frequencies Markus Stockhausen
2026-09-14 16:47 ` Andrew Lunn
2026-09-16 13:35 ` netdev-bot+sashiko
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