netdev - [PATCH net-next 12/18] nexthop: Pass extack to register_nexthop

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Message-Id: <20201104133040.1125369-13-idosch@idosch.org>
Date:   Wed,  4 Nov 2020 15:30:34 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, dsahern@...il.com,
        jiri@...dia.com, mlxsw@...dia.com, Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 12/18] nexthop: Pass extack to register_nexthop_notifier()

From: Ido Schimmel <idosch@...dia.com>

This will be used by the next patch which extends the function to replay
all the existing nexthops to the notifier block being registered.

Device drivers will be able to pass extack to the function since it is
passed to them upon reload from devlink.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
Reviewed-by: David Ahern <dsahern@...il.com>
---
 drivers/net/vxlan.c   | 3 ++-
 include/net/nexthop.h | 3 ++-
 net/ipv4/nexthop.c    | 3 ++-
 3 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index b9db20b4ebfd..183e708dc6cb 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -4711,7 +4711,8 @@ static __net_init int vxlan_init_net(struct net *net)
 	for (h = 0; h < PORT_HASH_SIZE; ++h)
 		INIT_HLIST_HEAD(&vn->sock_list[h]);
 
-	return register_nexthop_notifier(net, &vn->nexthop_notifier_block);
+	return register_nexthop_notifier(net, &vn->nexthop_notifier_block,
+					 NULL);
 }
 
 static void vxlan_destroy_tunnels(struct net *net, struct list_head *head)
diff --git a/include/net/nexthop.h b/include/net/nexthop.h
index 9c85199b826e..226930d66b63 100644
--- a/include/net/nexthop.h
+++ b/include/net/nexthop.h
@@ -144,7 +144,8 @@ struct nh_notifier_info {
 	};
 };
 
-int register_nexthop_notifier(struct net *net, struct notifier_block *nb);
+int register_nexthop_notifier(struct net *net, struct notifier_block *nb,
+			      struct netlink_ext_ack *extack);
 int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb);
 void nexthop_set_hw_flags(struct net *net, u32 id, bool offload, bool trap);
 
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c
index d5a2c28bea49..9a235d5c5670 100644
--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -2118,7 +2118,8 @@ static struct notifier_block nh_netdev_notifier = {
 	.notifier_call = nh_netdev_event,
 };
 
-int register_nexthop_notifier(struct net *net, struct notifier_block *nb)
+int register_nexthop_notifier(struct net *net, struct notifier_block *nb,
+			      struct netlink_ext_ack *extack)
 {
 	return blocking_notifier_chain_register(&net->nexthop.notifier_chain,
 						nb);
-- 
2.26.2