From 03c698c93fc15d976738a853a7ccb6ea26396003 Mon Sep 17 00:00:00 2001
From: Oskar Schirmer <oskar@linutronix.de>
Date: Thu, 7 Oct 2010 02:30:30 +0000
Subject: [PATCH] net/fec: carrier off initially to avoid root mount failure

with hardware slow in negotiation, the system did freeze
while trying to mount root on nfs at boot time.

the link state has not been initialised so network stack
tried to start transmission right away. this caused instant
retries, as the driver solely stated business upon link down,
rendering the system unusable.

notify carrier off initially to prevent transmission until
phylib will report link up.

Signed-off-by: Oskar Schirmer <oskar@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/fec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 768b840aeb6b..e83f67d22fe3 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1311,6 +1311,9 @@ fec_probe(struct platform_device *pdev)
 	if (ret)
 		goto failed_mii_init;
 
+	/* Carrier starts down, phylib will bring it up */
+	netif_carrier_off(ndev);
+
 	ret = register_netdev(ndev);
 	if (ret)
 		goto failed_register;
-- 
GitLab