ipv4: register igmp_notifier even when !CONFIG_PROC_FS

We still need this notifier even when we don't config
PROC_FS.

It should be rare to have a kernel without PROC_FS,
so just for completeness.

Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 84c4329cbd30..bcbf33e58324 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2762,6 +2762,7 @@ static struct pernet_operations igmp_net_ops = {
         .init = igmp_net_init,
         .exit = igmp_net_exit,
 };
+#endif
 
 static int igmp_netdev_event(struct notifier_block *this,
                              unsigned long event, void *ptr)
@@ -2785,8 +2786,9 @@ static struct notifier_block igmp_notifier = {
         .notifier_call = igmp_netdev_event,
 };
 
-int __init igmp_mc_proc_init(void)
+int __init igmp_mc_init(void)
 {
+#if defined(CONFIG_PROC_FS)
         int err;
 
         err = register_pernet_subsys(&igmp_net_ops);
@@ -2800,5 +2802,7 @@ int __init igmp_mc_proc_init(void)
 reg_notif_fail:
         unregister_pernet_subsys(&igmp_net_ops);
         return err;
-}
+#else
+        return register_netdevice_notifier(&igmp_notifier);
 #endif
+}