netdev - Re: [PATCH net-next 2/5] net: dsa: mv88e6xxx: Hold mutex while doing stats operations

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Date:   Wed, 03 Jan 2018 09:32:42 -0500
From:   Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:     Andrew Lunn <andrew@...n.ch>, David Miller <davem@...emloft.net>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        netdev <netdev@...r.kernel.org>,
        Russell King <rmk+kernel@....linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH net-next 2/5] net: dsa: mv88e6xxx: Hold mutex while doing stats operations

Hi Andrew,

Andrew Lunn <andrew@...n.ch> writes:

> -static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
> +static int _mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
>  {
>  	struct mv88e6xxx_chip *chip = ds->priv;
>  
> @@ -702,6 +706,19 @@ static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
>  	return 0;
>  }

We worked to remove the old underscore prefix convention. Please don't
add it back... Simply rework the return statements of
mv88e6xxx_get_sset_count to lock/unlock there.

>  
> +static int mv88e6xxx_get_sset_count(struct dsa_switch *ds, int port)
> +{
> +	struct mv88e6xxx_chip *chip = ds->priv;
> +	int ret;
> +
> +	mutex_lock(&chip->reg_lock);
> +	ret = _mv88e6xxx_get_sset_count(ds, port);
> +	mutex_unlock(&chip->reg_lock);
> +
> +	return ret;
> +}
> +
> +

Extra newline.

>  static void mv88e6xxx_stats_get_stats(struct mv88e6xxx_chip *chip, int port,
>  				      uint64_t *data, int types,
>  				      u16 bank1_select, u16 histogram)

Thanks,

        Vivien