From 7d1e2a10681d3b6eeaace68885ef5de88ce03efe Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 4 Oct 2020 18:12:56 +0200
Subject: 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@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/dsa.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'include/net/dsa.h')

diff --git a/include/net/dsa.h b/include/net/dsa.h
index ca426cf9927b6..c0185660881cf 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -701,6 +701,20 @@ 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;
-- 
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