From: Jakub Kicinski <kuba@kernel.org>
To: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Russell King <linux@armlinux.org.uk>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mips@vger.kernel.org
Subject: Re: [PATCH v2 2/2] net: dsa: qca: ar9331: export stats64
Date: Wed, 2 Dec 2020 10:39:37 -0800 [thread overview]
Message-ID: <20201202103937.137e587b@kicinski-fedora-pc1c0hjn.DHCP.thefacebook.com> (raw)
In-Reply-To: <20201202120712.6212-3-o.rempel@pengutronix.de>
On Wed, 2 Dec 2020 13:07:12 +0100 Oleksij Rempel wrote:
> +static void ar9331_read_stats(struct ar9331_sw_port *port)
> +{
> + mutex_lock(&port->lock);
> + mutex_unlock(&port->lock);
> +}
> +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];
> +
> + ar9331_read_stats(p);
> +}
> +
> static const struct dsa_switch_ops ar9331_sw_ops = {
> + .get_stats64 = ar9331_get_stats64,
> };
You can't take sleeping locks from .ndo_get_stats64.
Also regmap may sleep?
+ ret = regmap_read(priv->regmap, reg, &val);
Am I missing something?
prev parent reply other threads:[~2020-12-02 18:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 12:07 [PATCH v2 0/2] net: dsa: add stats64 support Oleksij Rempel
2020-12-02 12:07 ` [PATCH v2 1/2] net: dsa: add optional " Oleksij Rempel
2020-12-02 12:59 ` Vladimir Oltean
2020-12-02 15:03 ` Andrew Lunn
2020-12-02 17:12 ` Florian Fainelli
2020-12-02 12:07 ` [PATCH v2 2/2] net: dsa: qca: ar9331: export stats64 Oleksij Rempel
2020-12-02 12:15 ` Marc Kleine-Budde
2020-12-02 12:43 ` Oleksij Rempel
2020-12-02 12:47 ` Marc Kleine-Budde
2020-12-02 13:04 ` Vladimir Oltean
2020-12-02 13:51 ` Oleksij Rempel
2020-12-02 15:11 ` Andrew Lunn
2020-12-02 15:37 ` Vladimir Oltean
2020-12-02 18:39 ` Jakub Kicinski [this message]
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