Re: [PATCH v3 RESEND] net: mii: Fix the Speed display when the network cable is not connected
From: Andrew Lunn
Date: Thu Jan 16 2025 - 14:45:58 EST
On Wed, Jan 15, 2025 at 07:21:57PM +0800, Xiangqian Zhang wrote:
> Two different models of usb card, the drivers are r8152 and asix. If no
> network cable is connected, Speed = 10Mb/s. This problem is repeated in
> linux 3.10, 4.19, and 5.4. Both drivers call
> mii_ethtool_get_link_ksettings, but the value of cmd->base.speed in this
> function can only be SPEED_1000 or SPEED_100 or SPEED_10.
> When the network cable is not connected, set cmd->base.speed
> =SPEED_UNKNOWN.
>
> v2:
> https://lore.kernel.org/20250111132242.3327654-1-zhangxiangqian@xxxxxxxxxx
>
> Signed-off-by: Xiangqian Zhang <zhangxiangqian@xxxxxxxxxx>
You say this problem occurs in some older kernels, so ideally we want
this patch backported. Please could you add a Fixes: tag for when the
problem first appeared.
Please also read at least section 1.4 of:
https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html
Andrew
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