linux-kernel - Aw: Re: [PATCH] net: ethernet: mediatek: fix warning in phy_start

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Date:   Tue, 8 Jan 2019 20:06:53 +0100
From:   "Frank Wunderlich" <frank-w@...lic-files.de>
To:     "Heiner Kallweit" <hkallweit1@...il.com>
Cc:     "Felix Fietkau" <nbd@...nwrt.org>,
        "John Crispin" <john@...ozen.org>,
        "Sean Wang" <sean.wang@...nel.org>,
        "Nelson Chang" <nelson.chang@...iatek.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Aw: Re: [PATCH] net: ethernet: mediatek: fix warning in
 phy_start_aneg


> In mtk_phy_connect() I would say this complete block can be removed.
> All this is handled internally by phylib.
> 
> 	dev->phydev->autoneg = AUTONEG_ENABLE;
> 	dev->phydev->speed = 0;
> 	dev->phydev->duplex = 0;
> 
> 	phy_set_max_speed(dev->phydev, SPEED_1000);
> 	phy_support_asym_pause(dev->phydev);
> 	linkmode_copy(dev->phydev->advertising, dev->phydev->supported);
> 	linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
> 			 dev->phydev->advertising);
> 	phy_start_aneg(dev->phydev);
> 
> Could you please test this?

seems to work well, no warning in dmesg

traffic 940Mbit sending, 900 receive

> And a further proposal:
> Instead of the open-coded dev_info() in mtk_phy_connect_node()
> you could use phy_attached_info().

have not tried this yet...because it's only an info-message and needs different parameters...have to look how i can convert it 

> Calling phy_start() in the ndo_open callback is fine, you can leave
> it there.

have it re-added

pushed to my repo: https://github.com/frank-w/BPI-R2-4.14/commits/5.0-rc

regards Frank