netdev - [RFC PATCH net-next 04/13] net: dsa: Call driver's setup callback after setting up its switchdev notifier

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Date:   Sun, 24 Mar 2019 05:23:37 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     davem@...emloft.net, netdev@...r.kernel.org
Cc:     f.fainelli@...il.com, andrew@...n.ch, vivien.didelot@...il.com,
        linus.walleij@...aro.org, Vladimir Oltean <olteanv@...il.com>
Subject: [RFC PATCH net-next 04/13] net: dsa: Call driver's setup callback after setting up its switchdev notifier

This allows the driver to perform some manipulations of its own during
setup, using generic code.
One current usage scenario is for the driver to request DSA to set up
802.1Q based switch tagging for its ports.

Signed-off-by: Vladimir Oltean <olteanv@...il.com>
---
 net/dsa/dsa2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index c00ee464afc7..5beceb18b7e2 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -360,14 +360,14 @@ static int dsa_switch_setup(struct dsa_switch *ds)
 	if (err)
 		return err;
 
-	err = ds->ops->setup(ds);
-	if (err < 0)
-		return err;
-
 	err = dsa_switch_register_notifier(ds);
 	if (err)
 		return err;
 
+	err = ds->ops->setup(ds);
+	if (err < 0)
+		return err;
+
 	if (!ds->slave_mii_bus && ds->ops->phy_read) {
 		ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
 		if (!ds->slave_mii_bus)
-- 
2.17.1