netdev - [patch net-next 1/4] net: call call_netdevice_unregister_net

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Date:   Fri, 20 Dec 2019 13:35:39 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jakub.kicinski@...ronome.com,
        saeedm@...lanox.com, leon@...nel.org, tariqt@...lanox.com,
        ayal@...lanox.com, vladbu@...lanox.com, michaelgur@...lanox.com,
        moshe@...lanox.com, mlxsw@...lanox.com
Subject: [patch net-next 1/4] net: call call_netdevice_unregister_net_notifiers from unregister

From: Jiri Pirko <jiri@...lanox.com>

The function does the same thing as the existing code, so rather call
call_netdevice_unregister_net_notifiers() instead of code duplication.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 net/core/dev.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 2c277b8aba38..2c90722195f8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1764,7 +1764,6 @@ EXPORT_SYMBOL(register_netdevice_notifier);
 
 int unregister_netdevice_notifier(struct notifier_block *nb)
 {
-	struct net_device *dev;
 	struct net *net;
 	int err;
 
@@ -1775,16 +1774,9 @@ int unregister_netdevice_notifier(struct notifier_block *nb)
 	if (err)
 		goto unlock;
 
-	for_each_net(net) {
-		for_each_netdev(net, dev) {
-			if (dev->flags & IFF_UP) {
-				call_netdevice_notifier(nb, NETDEV_GOING_DOWN,
-							dev);
-				call_netdevice_notifier(nb, NETDEV_DOWN, dev);
-			}
-			call_netdevice_notifier(nb, NETDEV_UNREGISTER, dev);
-		}
-	}
+	for_each_net(net)
+		call_netdevice_unregister_net_notifiers(nb, net);
+
 unlock:
 	rtnl_unlock();
 	up_write(&pernet_ops_rwsem);
-- 
2.21.0