linux-kernel - [PATCH 4.14 141/217] ieee802154: 6lowpan: set IFLA

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Date:   Thu, 23 Aug 2018 09:54:14 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Lubomir Rintel <lkundrak@...sk>,
        Alexander Aring <aring@...atatu.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 141/217] ieee802154: 6lowpan: set IFLA_LINK

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

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

From: Lubomir Rintel <lkundrak@...sk>

[ Upstream commit b30c122c0bbb0a1dc413085e177ea09467e65fdb ]

Otherwise NetworkManager (and iproute alike) is not able to identify the
parent IEEE 802.15.4 interface of a 6LoWPAN link.

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
Acked-by: Alexander Aring <aring@...atatu.com>
Signed-off-by: Stefan Schmidt <stefan@...enfreihafen.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ieee802154/6lowpan/core.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -90,12 +90,18 @@ static int lowpan_neigh_construct(struct
 	return 0;
 }
 
+static int lowpan_get_iflink(const struct net_device *dev)
+{
+	return lowpan_802154_dev(dev)->wdev->ifindex;
+}
+
 static const struct net_device_ops lowpan_netdev_ops = {
 	.ndo_init		= lowpan_dev_init,
 	.ndo_start_xmit		= lowpan_xmit,
 	.ndo_open		= lowpan_open,
 	.ndo_stop		= lowpan_stop,
 	.ndo_neigh_construct    = lowpan_neigh_construct,
+	.ndo_get_iflink         = lowpan_get_iflink,
 };
 
 static void lowpan_setup(struct net_device *ldev)