linux-kernel - [PATCH 3.16.y-ckt 007/129] qeth: initialize net

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Message-Id: <1456482100-4667-8-git-send-email-luis.henriques@canonical.com>
Date:	Fri, 26 Feb 2016 10:19:38 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Ursula Braun <ubraun@...ux.vnet.ibm.com>,
	"David S. Miller" <davem@...emloft.net>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 007/129] qeth: initialize net_device with carrier off

3.16.7-ckt25 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Ursula Braun <ubraun@...ux.vnet.ibm.com>

commit e5ebe63214d44d4dcf43df02edf3613e04d671b9 upstream.

/sys/class/net/<interface>/operstate for an active qeth network
interface offen shows "unknown", which translates to "state UNKNOWN
in output of "ip link show". It is caused by a missing initialization
of the __LINK_STATE_NOCARRIER bit in the net_device state field.
This patch adds a netif_carrier_off() invocation when creating the
net_device for a qeth device.

Signed-off-by: Ursula Braun <ubraun@...ux.vnet.ibm.com>
Acked-by: Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>
Reference-ID: Bugzilla 133209
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 drivers/s390/net/qeth_l2_main.c | 1 +
 drivers/s390/net/qeth_l3_main.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 5ef5b4f45758..12339e6bd23e 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -977,6 +977,7 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
 	qeth_l2_request_initial_mac(card);
 	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
 	netif_napi_add(card->dev, &card->napi, qeth_l2_poll, QETH_NAPI_WEIGHT);
+	netif_carrier_off(card->dev);
 	return register_netdev(card->dev);
 }
 
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 14e0b5810e8c..3cbe133a0d96 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3310,6 +3310,7 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
 
 	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
 	netif_napi_add(card->dev, &card->napi, qeth_l3_poll, QETH_NAPI_WEIGHT);
+	netif_carrier_off(card->dev);
 	return register_netdev(card->dev);
 }