netdev - Re: [PATCH net-next v2 2/2] net: dsa: mv88e6xxx: Clear the PDOWN bit on setup

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Date:	Tue, 29 Mar 2016 12:23:06 -0400
From:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:	Patrick Uiterwijk <patrick@...terwijk.org>, linux@...ck-us.net,
	davem@...emloft.net, andrew@...n.ch
Cc:	netdev@...r.kernel.org, dennis@...il.us, pbrobinson@...il.com,
	Patrick Uiterwijk <patrick@...terwijk.org>
Subject: Re: [PATCH net-next v2 2/2] net: dsa: mv88e6xxx: Clear the PDOWN bit on setup

Hi Patrick,

Two comments below.

Patrick Uiterwijk <patrick@...terwijk.org> writes:

> +static int mv88e6xxx_power_on_serdes(struct dsa_switch *ds)

Since this function assumes the SMI lock is already held, its name
should be prefixed with _ by convention (_mv88e6xxx_power_on_serdes).

> +{
> +	int ret;
> +
> +	ret = _mv88e6xxx_phy_page_read(ds, REG_FIBER_SERDES, PAGE_FIBER_SERDES,
> +				       MII_BMCR);
> +	if (ret < 0)
> +		return ret;
> +
> +	if (ret & BMCR_PDOWN) {
> +		ret = ret & ~BMCR_PDOWN;

                ret &= ~BMCR_PDOWN;

> +		ret = _mv88e6xxx_phy_page_write(ds, REG_FIBER_SERDES,
> +						PAGE_FIBER_SERDES, MII_BMCR,
> +						ret);
> +	}
> +
> +	return ret;
> +}

Thanks,
Vivien