netdev - [PATCH net-next v2 6/7] net: dsa: Add helper for converting devlink port to ds and port

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Message-Id: <20200926210632.3888886-7-andrew@lunn.ch>
Date:   Sat, 26 Sep 2020 23:06:31 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Jiri Pirko <jiri@...dia.com>, Jakub Kicinski <kuba@...nel.org>,
        Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next v2 6/7] net: dsa: Add helper for converting devlink port to ds and port

Hide away from DSA drivers how devlink works.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 include/net/dsa.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index f0bb64e5002f..24c925c192ec 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -686,6 +686,20 @@ static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl)
 	return dl_priv->ds;
 }
 
+static inline
+struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port)
+{
+	struct devlink *dl = port->devlink;
+	struct dsa_devlink_priv *dl_priv = devlink_priv(dl);
+
+	return dl_priv->ds;
+}
+
+static inline int dsa_devlink_port_to_port(struct devlink_port *port)
+{
+	return port->index;
+}
+
 struct dsa_switch_driver {
 	struct list_head	list;
 	const struct dsa_switch_ops *ops;
-- 
2.28.0