[PATCH 4.19 006/106] qmi_wwan: add MTU default to qmap network interface

[Greg Kroah-Hartman]

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

------------------

From: Daniele Palmas <dnl...@gmail.com>

[ 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 <dnl...@gmail.com>
Acked-by: Bjørn Mork <bj...@mork.no>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/net/usb/qmi_wwan.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -123,6 +123,7 @@ static void qmimux_setup(struct net_devi
        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;
 }