linux-kernel - [PATCH NET-PREV 46/51] 6lowpan: Use __unregister

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Message-ID: <174265461407.356712.9206164277601393221.stgit@pro.pro>
Date: Sat, 22 Mar 2025 17:43:34 +0300
From: Kirill Tkhai <tkhai@...ru>
To: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: tkhai@...ru
Subject: [PATCH NET-PREV 46/51] 6lowpan: Use __unregister_netdevice()

->dellink is going to be called with nd_lock is held

Signed-off-by: Kirill Tkhai <tkhai@...ru>
---
 net/6lowpan/core.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/6lowpan/core.c b/net/6lowpan/core.c
index b5cbf85b291c..bd77076b125e 100644
--- a/net/6lowpan/core.c
+++ b/net/6lowpan/core.c
@@ -71,15 +71,19 @@ EXPORT_SYMBOL(lowpan_register_netdev);
 
 void lowpan_unregister_netdevice(struct net_device *dev)
 {
-	unregister_netdevice(dev);
+	__unregister_netdevice(dev);
 	lowpan_dev_debugfs_exit(dev);
 }
 EXPORT_SYMBOL(lowpan_unregister_netdevice);
 
 void lowpan_unregister_netdev(struct net_device *dev)
 {
+	struct nd_lock *nd_lock;
+
 	rtnl_lock();
+	lock_netdev(dev, &nd_lock);
 	lowpan_unregister_netdevice(dev);
+	unlock_netdev(nd_lock);
 	rtnl_unlock();
 }
 EXPORT_SYMBOL(lowpan_unregister_netdev);