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Message-ID: <YADNEWkiPQX34Tyo@lunn.ch>
Date:   Fri, 15 Jan 2021 00:00:33 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek BehĂșn <kabel@...nel.org>
Cc:     netdev@...r.kernel.org, pavana.sharma@...i.com,
        vivien.didelot@...il.com, f.fainelli@...il.com, kuba@...nel.org,
        lkp@...el.com, davem@...emloft.net, ashkan.boldaji@...i.com,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        olteanv@...il.com,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: Re: [PATCH net] net: dsa: mv88e6xxx: do not allow inband AN for
 2500base-x mode

> diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c
> index 3195936dc5be..b8241820679e 100644
> --- a/drivers/net/dsa/mv88e6xxx/serdes.c
> +++ b/drivers/net/dsa/mv88e6xxx/serdes.c
> @@ -55,9 +55,20 @@ static int mv88e6xxx_serdes_pcs_get_state(struct mv88e6xxx_chip *chip,
>  {
>  	if (status & MV88E6390_SGMII_PHY_STATUS_SPD_DPL_VALID) {
>  		state->link = !!(status & MV88E6390_SGMII_PHY_STATUS_LINK);
> +
> +		if (state->interface == PHY_INTERFACE_MODE_2500BASEX) {
> +			if (state->link) {
> +				state->speed = SPEED_2500;
> +				state->duplex = DUPLEX_FULL;
> +			}
> +
> +			return 0;
> +		}
> +
> +		state->an_complete = 1;

Should this be here? It seems like a logically different change, it is
not clear to me it is to do with PHY_INTERFACE_MODE_2500BASEX.

>  		state->duplex = status &
>  				MV88E6390_SGMII_PHY_STATUS_DUPLEX_FULL ?
> -			                         DUPLEX_FULL : DUPLEX_HALF;
> +						DUPLEX_FULL : DUPLEX_HALF;

This looks like an unintended white space change.

     Andrew

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