From: Daniele Palmas <dnlplm@gmail.com>
Date: Fri, 4 Jan 2019 12:26:10 +0000 (+0100)
Subject: qmi_wwan: add MTU default to qmap network interface
X-Git-Tag: v4.14.96~59
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7cd4cd3226a747a9d4ed15eefe3a284e6a010f6e;p=thirdparty%2Fkernel%2Fstable.git

qmi_wwan: add MTU default to qmap network interface

[ Upstream commit f87118d5760f00af7228033fbe783c7f380d2866 ]

This patch adds MTU default value to qmap network interface in
order to avoid "RTNETLINK answers: No buffer space available"
error when setting an ipv6 address.

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 891f8f975b433..25204d2c9e89c 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -123,6 +123,7 @@ static void qmimux_setup(struct net_device *dev)
 	dev->addr_len        = 0;
 	dev->flags           = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
 	dev->netdev_ops      = &qmimux_netdev_ops;
+	dev->mtu             = 1500;
 	dev->needs_free_netdev = true;
 }