netdev - [PATCH v4 04/18] vxlan: exit_net cleanup checks added

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Message-ID: <0c75cf66-73cd-b7f5-2612-fd864f45cd2e@virtuozzo.com>
Date:   Sun, 12 Nov 2017 11:42:00 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     netdev@...r.kernel.org
Subject: [PATCH v4 04/18] vxlan: exit_net cleanup checks added

Be sure that sock_list array initialized in net_init hook was return
to initial state

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 drivers/net/vxlan.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d7c49cf..766a41b 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3704,6 +3704,7 @@ static void __net_exit vxlan_exit_net(struct net *net)
 	struct vxlan_net *vn = net_generic(net, vxlan_net_id);
 	struct vxlan_dev *vxlan, *next;
 	struct net_device *dev, *aux;
+	unsigned int h;
 	LIST_HEAD(list);
 
 	rtnl_lock();
@@ -3723,6 +3724,10 @@ static void __net_exit vxlan_exit_net(struct net *net)
 
 	unregister_netdevice_many(&list);
 	rtnl_unlock();
+
+	for (h = 0; h < PORT_HASH_SIZE; ++h)
+		if (WARN_ON_ONCE(!hlist_empty(&vn->sock_list[h])))
+			break;
 }
 
 static struct pernet_operations vxlan_net_ops = {
-- 
2.7.4