linux-kernel - Re: [PATCH] net: phy: fix autoneg invalid error state of GBSR register.

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Date:   Wed, 1 Sep 2021 15:01:54 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     马强 <maqianga@...ontech.com>
Cc:     "f.fainelli" <f.fainelli@...il.com>, davem <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Ming Wang <wangming01@...ngson.cn>
Subject: Re: [PATCH] net: phy: fix autoneg invalid error state of GBSR
 register.

> > It looks like you are using an old tree.
> Yes, it is linux-4.19.y, since 4.19.y does not have autoneg_complete flag,，
> This patch adds the condition before
> reading GBSR register to fix this error state.

So you first need to fix it in net/master, and then backport it to
older kernels.

   Andrew