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xfrm: remove the unnecessary .net_exit for xfrmi 

The xfrm_if(s) on each netns can be deleted when its xfrmi dev is
deleted. xfrmi dev's removal can happen when:

  a. netns is being removed and all xfrmi devs will be deleted.

  b. rtnl_link_unregister(&xfrmi_link_ops) in xfrmi_fini() when
     xfrm_interface.ko is being unloaded.

So there's no need to use xfrmi_exit_net() to clean any xfrm_if up.

v1->v2:
  - Fix some changelog.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Xin Long 2019-09-09 16:30:10 +08:00 committed by Steffen Klassert
parent 02dc96ef6c
commit 4361f5b611
1 changed files with 0 additions and 23 deletions
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23
net/xfrm/xfrm_interface.c
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@ -732,30 +732,7 @@ static struct rtnl_link_ops xfrmi_link_ops __read_mostly = {
.get_link_net = xfrmi_get_link_net,
};
static void __net_exit xfrmi_destroy_interfaces(struct xfrmi_net *xfrmn)
{
struct xfrm_if *xi;
LIST_HEAD(list);
xi = rtnl_dereference(xfrmn->xfrmi[0]);
if (!xi)
return;
unregister_netdevice_queue(xi->dev, &list);
unregister_netdevice_many(&list);
}
static void __net_exit xfrmi_exit_net(struct net *net)
{
struct xfrmi_net *xfrmn = net_generic(net, xfrmi_net_id);
rtnl_lock();
xfrmi_destroy_interfaces(xfrmn);
rtnl_unlock();
}
static struct pernet_operations xfrmi_net_ops = {
.exit = xfrmi_exit_net,
.id = &xfrmi_net_id,
.size = sizeof(struct xfrmi_net),
};