[B.A.T.M.A.N.] [RFC 1/2] batman-adv: Add extack to ndo_add_slave

[Sven Eckelmann <sven@narfation.org>]

From: David Ahern <dsahern@gmail.com>

Pass extack to do_set_master and down to ndo_add_slave

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
This change is already part of net-next (queued up for 4.15) we must
therefore apply it after the compat code was added.

 net/batman-adv/soft-interface.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 3af4b0b2..543d2c3e 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -867,7 +867,8 @@ static int batadv_softif_init_late(struct net_device *dev)
  * Return: 0 if successful or error otherwise.
  */
 static int batadv_softif_slave_add(struct net_device *dev,
-				   struct net_device *slave_dev)
+				   struct net_device *slave_dev,
+				   struct netlink_ext_ack *extack)
 {
 	struct batadv_hard_iface *hard_iface;
 	struct net *net = dev_net(dev);
-- 
2.11.0