netdev - Re: [PATCH v1 net] net: stmmac: removed enabling eee in EEE set callback

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Date:   Wed, 23 Sep 2020 18:09:07 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     weifeng.voon@...el.com
Cc:     mcoquelin.stm32@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, joabreu@...opsys.com,
        peppe.cavallaro@...com, andrew@...n.ch, alexandre.torgue@...com,
        boon.leong.ong@...el.com, chen.yong.seow@...el.com,
        mgross@...ux.intel.com
Subject: Re: [PATCH v1 net] net: stmmac: removed enabling eee in EEE set
 callback

From: Voon Weifeng <weifeng.voon@...el.com>
Date: Wed, 23 Sep 2020 16:56:14 +0800

> EEE should be only be enabled during stmmac_mac_link_up() when the
> link are up and being set up properly. set_eee should only do settings
> configuration and disabling the eee.
> 
> Without this fix, turning on EEE using ethtool will return
> "Operation not supported". This is due to the driver is in a dead loop
> waiting for eee to be advertised in the for eee to be activated but the
> driver will only configure the EEE advertisement after the eee is
> activated.
> 
> Ethtool should only return "Operation not supported" if there is no EEE
> capbility in the MAC controller.
> 
> Fixes: 8a7493e58ad6 ("net: stmmac: Fix a race in EEE enable callback")
> 
> Signed-off-by: Voon Weifeng <weifeng.voon@...el.com>

Please do not insert empty lines between Fixes: and other tags.  All tags
are equal and belong together in a group.

I fixed that up, applied the patch, and queued it up for -stable.

Thank you.