netdev - Re: [PATCH v7 net-next 2/2] net: dsa: qca: ar9331: export stats64

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Message-ID: <X/ccfY+9a8R6wcJX@lunn.ch>
Date:   Thu, 7 Jan 2021 15:36:45 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH v7 net-next 2/2] net: dsa: qca: ar9331: export stats64

> +static void ar9331_get_stats64(struct dsa_switch *ds, int port,
> +			       struct rtnl_link_stats64 *s)
> +{
> +	struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
> +	struct ar9331_sw_port *p = &priv->port[port];
> +
> +	spin_lock(&p->stats_lock);
> +	memcpy(s, &p->stats, sizeof(*s));
> +	spin_unlock(&p->stats_lock);
> +}

This should probably wait until Vladimir's changes for stat64 are
merged, so this call can sleep. You can then return up to date
statistics.

	Andrew