1 files changed, 12 insertions, 1 deletions

diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 0efc5028ba9d..46ee488c0015 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -106,6 +106,10 @@ static struct sk_buff *reset_per_cpu_data(struct per_cpu_dm_data *data)
         return skb;
 }
 
+static struct genl_multicast_group dm_mcgrp = {
+        .name = "events",
+};
+
 static void send_dm_alert(struct work_struct *work)
 {
         struct sk_buff *skb;
@@ -116,7 +120,7 @@ static void send_dm_alert(struct work_struct *work)
         skb = reset_per_cpu_data(data);
 
         if (skb)
-                genlmsg_multicast(skb, 0, NET_DM_GRP_ALERT, GFP_KERNEL);
+                genlmsg_multicast(skb, 0, dm_mcgrp.id, GFP_KERNEL);
 }
 
 /*
@@ -371,6 +375,13 @@ static int __init init_net_drop_monitor(void)
                 return rc;
         }
 
+        rc = genl_register_mc_group(&net_drop_monitor_family, &dm_mcgrp);
+        if (rc) {
+                pr_err("Failed to register drop monitor mcast group\n");
+                goto out_unreg;
+        }
+        WARN_ON(dm_mcgrp.id != NET_DM_GRP_ALERT);
+
         rc = register_netdevice_notifier(&dropmon_net_notifier);
         if (rc < 0) {
                 pr_crit("Failed to register netdevice notifier\n");