netdev - [PATCH net] ehea: fix operation state report

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Date:   Thu,  3 Nov 2016 08:16:20 -0200
From:   "Guilherme G. Piccoli" <gpiccoli@...ux.vnet.ibm.com>
To:     netdev@...r.kernel.org
Cc:     dougmill@...ux.vnet.ibm.com, zhou@...hat.com,
        "Guilherme G. Piccoli" <gpiccoli@...ux.vnet.ibm.com>
Subject: [PATCH net] ehea: fix operation state report

Currently the ehea driver is missing a call to netif_carrier_off()
before the interface bring-up; this is necessary in order to
initialize the __LINK_STATE_NOCARRIER bit in the net_device state
field. Otherwise, we observe state UNKNOWN on "ip address" command
output.

This patch adds a call to netif_carrier_off() on ehea's net device
open callback.

Reported-by: Xiong Zhou <zhou@...hat.com>
Reference-ID: IBM bz #137702, Red Hat bz #1089134
Signed-off-by: Guilherme G. Piccoli <gpiccoli@...ux.vnet.ibm.com>
---
 drivers/net/ethernet/ibm/ehea/ehea_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ehea/ehea_main.c b/drivers/net/ethernet/ibm/ehea/ehea_main.c
index 54efa9a..bd719e2 100644
--- a/drivers/net/ethernet/ibm/ehea/ehea_main.c
+++ b/drivers/net/ethernet/ibm/ehea/ehea_main.c
@@ -2446,6 +2446,8 @@ static int ehea_open(struct net_device *dev)
 
 	netif_info(port, ifup, dev, "enabling port\n");
 
+	netif_carrier_off(dev);
+
 	ret = ehea_up(dev);
 	if (!ret) {
 		port_napi_enable(port);
-- 
2.1.0