netdev - [PATCH RFC 22/28] net: dsa: Setup the switches after all have been probed

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Message-Id: <1450875402-20740-23-git-send-email-andrew@lunn.ch>
Date:	Wed, 23 Dec 2015 13:56:36 +0100
From:	Andrew Lunn <andrew@...n.ch>
To:	Florian Fainelli <f.fainelli@...il.com>, narmstrong@...libre.com,
	vivien.didelot@...oirfairelinux.com
Cc:	netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH RFC 22/28] net: dsa: Setup the switches after all have been probed

Some switches register themselves with DSA, which others are probed by
DSA itself. Move the setup call to after all switches have been
successfully probed.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 net/dsa/dsa.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 2c1f50561343..fbb8fc852a3b 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -382,7 +382,6 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
 	struct dsa_chip_data *pd = dst->pd->chip + index;
 	struct dsa_switch_driver *drv;
 	struct dsa_switch *ds;
-	int ret;
 	char *name;
 
 	/*
@@ -412,10 +411,6 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index,
 	ds->tag_protocol = drv->tag_protocol;
 	ds->master_dev = host_dev;
 
-	ret = dsa_switch_setup_one(ds, parent);
-	if (ret)
-		return ERR_PTR(ret);
-
 	return ds;
 }
 
@@ -827,22 +822,28 @@ static inline void dsa_of_remove(struct device *dev,
 static int dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
 			 struct device *parent)
 {
-	int i;
+	int i, ret;
 	unsigned configured = 0;
+	struct dsa_switch *ds;
 	struct dsa_platform_data *pd = dst->pd;
 
 	dst->cpu_switch = -1;
 	dst->cpu_port = -1;
 
 	for (i = 0; i < pd->nr_chips; i++) {
-		struct dsa_switch *ds;
-
 		ds = dsa_switch_setup(dst, i, parent, pd->chip[i].host_dev);
 		if (IS_ERR(ds)) {
 			netdev_err(dev, "[%d]: couldn't create dsa switch instance (error %ld)\n",
 				   i, PTR_ERR(ds));
 			continue;
 		}
+	}
+
+	for (i = 0; i < pd->nr_chips; i++) {
+		ds = dst->ds[i];
+		ret = dsa_switch_setup_one(ds, parent);
+		if (ret)
+			return ret;
 
 		dst->ds[i] = ds;
 
-- 
2.6.3

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