netdev - Re: [PATCH net-next v4 6/6] net: dsa: mv88e6xxx: fully support SERDES on Topaz family

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Message-ID: <20190826153830.GE2168@lunn.ch>
Date:   Mon, 26 Aug 2019 17:38:30 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Marek Behún <marek.behun@....cz>
Cc:     netdev@...r.kernel.org, Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>
Subject: Re: [PATCH net-next v4 6/6] net: dsa: mv88e6xxx: fully support
 SERDES on Topaz family

> +static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
> +				    phy_interface_t mode, bool allow_over_2500,
> +				    bool make_cmode_writable)

I don't like these two parameters. The caller of this function can do
the check for allow_over_2500 and error out before calling this.

Is make_cmode_writable something that could be done once at probe and
then forgotten about? Or is it needed before every write? At least
move it into the specific port_set_cmode() that requires it.

Thanks
	Andrew