linux-kernel - Re: [PATCH v2 net] net: mdio-mux: fix C45 access returning -EIO after API change

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Date:   Thu, 19 Oct 2023 01:20:24 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vladimir Oltean <vladimir.oltean@....com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, andrew@...n.ch,
        hkallweit1@...il.com, rmk+kernel@...linux.org.uk,
        f.fainelli@...il.com, michael@...le.cc,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 net] net: mdio-mux: fix C45 access returning -EIO after API
 change

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Tue, 17 Oct 2023 17:31:44 +0300 you wrote:
> The mii_bus API conversion to read_c45() and write_c45() did not cover
> the mdio-mux driver before read() and write() were made C22-only.
> 
> This broke arch/arm64/boot/dts/freescale/fsl-ls1028a-qds-13bb.dtso.
> The -EOPNOTSUPP from mdiobus_c45_read() is transformed by
> get_phy_c45_devs_in_pkg() into -EIO, is further propagated to
> of_mdiobus_register() and this makes the mdio-mux driver fail to probe
> the entire child buses, not just the PHYs that cause access errors.
> 
> [...]

Here is the summary with links:
  - [v2,net] net: mdio-mux: fix C45 access returning -EIO after API change
    https://git.kernel.org/netdev/net/c/1f9f2143f24e

You are awesome, thank you!
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