netdev - Re: [PATCH 4/9] net: ethernet: mtk_eth_soc: only write values if needed

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Message-ID: <Y90VXN5MGD5OSfky@lunn.ch>
Date:   Fri, 3 Feb 2023 15:08:28 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Daniel Golle <daniel@...rotopia.org>
Cc:     netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        DENG Qingfang <dqfext@...il.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Vladimir Oltean <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jianhui Zhao <zhaojh329@...il.com>,
        Bjørn Mork <bjorn@...k.no>
Subject: Re: [PATCH 4/9] net: ethernet: mtk_eth_soc: only write values if
 needed

On Fri, Feb 03, 2023 at 07:02:01AM +0000, Daniel Golle wrote:
> Only restart auto-negotiation and write link timer if actually
> necessary.
> 
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> ---
>  drivers/net/ethernet/mediatek/mtk_sgmii.c | 24 +++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
> index f3cf66a23e72..58b5f2f70a66 100644
> --- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
> +++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
> @@ -41,17 +41,13 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
>  	struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
>  	unsigned int rgc3, sgm_mode, bmcr;
>  	int advertise, link_timer;
> -	bool changed, use_an;
> +	bool mode_changed = false, changed, use_an;

Reverse Christmas tree .... Please check all the patches.

	Andrew