linux-kernel - Re: [PATCH net-next 6/8] net: enetc: add basic support for the ENETC with pseudo MAC for i.MX94

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Message-ID: <11ffb7d0-4e52-496e-84c7-0d93bf03e4cf@redhat.com>
Date: Tue, 21 Oct 2025 09:26:48 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: Wei Fang <wei.fang@....com>, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, claudiu.manoil@....com, vladimir.oltean@....com,
 xiaoning.wang@....com, Frank.Li@....com, andrew+netdev@...n.ch,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 richardcochran@...il.com
Cc: imx@...ts.linux.dev, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next 6/8] net: enetc: add basic support for the ENETC
 with pseudo MAC for i.MX94

On 10/16/25 12:20 PM, Wei Fang wrote:
> @@ -635,28 +649,10 @@ static void enetc4_pl_mac_config(struct phylink_config *config, unsigned int mod
>  
>  static void enetc4_set_port_speed(struct enetc_ndev_priv *priv, int speed)
>  {
> -	u32 old_speed = priv->speed;
> -	u32 val;
> -
> -	if (speed == old_speed)
> -		return;
> -
> -	val = enetc_port_rd(&priv->si->hw, ENETC4_PCR);
> -	val &= ~PCR_PSPEED;
> -
> -	switch (speed) {
> -	case SPEED_100:
> -	case SPEED_1000:
> -	case SPEED_2500:
> -	case SPEED_10000:
> -		val |= (PCR_PSPEED & PCR_PSPEED_VAL(speed));
> -		break;
> -	case SPEED_10:
> -	default:
> -		val |= (PCR_PSPEED & PCR_PSPEED_VAL(SPEED_10));
> -	}
> +	u32 val = enetc_port_rd(&priv->si->hw, ENETC4_PCR);
>  
>  	priv->speed = speed;
> +	val = u32_replace_bits(val, PCR_PSPEED_VAL(speed), PCR_PSPEED);
>  	enetc_port_wr(&priv->si->hw, ENETC4_PCR, val);
>  }

The above chunk looks unrelated from the rest of this patch. Perhaps
worth moving to a separate patch in this series? Or add some comments
explaining why it's needed.

Thanks,

Paolo