genetlink: pass family to functions using groups

This doesn't really change anything, but prepares for the
next patch that will change the APIs to pass the group ID
within the family, rather than the global group ID.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

18 files changed, 133 insertions, 87 deletions

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 8247fcdde0795b..68a8755202ec5f 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -146,7 +146,8 @@ int acpi_bus_generate_netlink_event(const char *device_class,
 		return result;
 	}
 
-	genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&acpi_event_genl_family,
+			  skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
 	return 0;
 }
 
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index f55758b0840e89..2721e29935a61a 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2677,8 +2677,9 @@ static struct genl_multicast_group team_change_event_mcgrp = {
 static int team_nl_send_multicast(struct sk_buff *skb,
 				  struct team *team, u32 portid)
 {
-	return genlmsg_multicast_netns(dev_net(team->dev), skb, 0,
-				       team_change_event_mcgrp.id, GFP_KERNEL);
+	return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
+				       skb, 0, team_change_event_mcgrp.id,
+				       GFP_KERNEL);
 }
 
 static int team_nl_send_event_options_get(struct team *team,
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 1eb7b0280a4544..2775441111ff81 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -1512,7 +1512,8 @@ static int pmcraid_notify_aen(
 	}
 
 	result =
-		genlmsg_multicast(skb, 0, pmcraid_event_family.id, GFP_ATOMIC);
+		genlmsg_multicast(&pmcraid_event_family, skb, 0,
+				  pmcraid_event_family.id, GFP_ATOMIC);
 
 	/* If there are no listeners, genlmsg_multicast may return non-zero
 	 * value.
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 4962a6aaf2957d..2570a944fffcc4 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1675,7 +1675,8 @@ int thermal_generate_netlink_event(struct thermal_zone_device *tz,
 		return result;
 	}
 
-	result = genlmsg_multicast(skb, 0, thermal_event_mcgrp.id, GFP_ATOMIC);
+	result = genlmsg_multicast(&thermal_event_genl_family, skb, 0,
+				   thermal_event_mcgrp.id, GFP_ATOMIC);
 	if (result)
 		dev_err(&tz->device, "Failed to send netlink event:%d", result);
 
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index aa22fe03b76c65..a5b5eddf6603bc 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -88,7 +88,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
 		goto attr_err_out;
 	genlmsg_end(skb, msg_head);
 
-	genlmsg_multicast(skb, 0, quota_mcgrp.id, GFP_NOFS);
+	genlmsg_multicast(&quota_genl_family, skb, 0, quota_mcgrp.id, GFP_NOFS);
 	return;
 attr_err_out:
 	printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 47086030ab315c..5b9b8ae6748bea 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -286,7 +286,8 @@ static int CONCAT_(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)(	\
 		CONCAT_(GENL_MAGIC_FAMILY, _mcg_ ## group).id;	\
 	if (!group_id)							\
 		return -EINVAL;						\
-	return genlmsg_multicast(skb, 0, group_id, flags);		\
+	return genlmsg_multicast(&ZZZ_genl_family, skb, 0,		\
+				 group_id, flags);			\
 }
 
 #include GENL_MAGIC_INCLUDE_FILE
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 11ac77f6180cf0..60aef0df386b06 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -166,7 +166,8 @@ static inline int _genl_register_family_with_ops(struct genl_family *family,
 int genl_unregister_family(struct genl_family *family);
 int genl_register_mc_group(struct genl_family *family,
 			   struct genl_multicast_group *grp);
-void genl_notify(struct sk_buff *skb, struct net *net, u32 portid,
+void genl_notify(struct genl_family *family,
+		 struct sk_buff *skb, struct net *net, u32 portid,
 		 u32 group, struct nlmsghdr *nlh, gfp_t flags);
 
 void *genlmsg_put(struct sk_buff *skb, u32 portid, u32 seq,
@@ -246,13 +247,15 @@ static inline void genlmsg_cancel(struct sk_buff *skb, void *hdr)
 
 /**
  * genlmsg_multicast_netns - multicast a netlink message to a specific netns
+ * @family: the generic netlink family
  * @net: the net namespace
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
  * @group: multicast group id
  * @flags: allocation flags
  */
-static inline int genlmsg_multicast_netns(struct net *net, struct sk_buff *skb,
+static inline int genlmsg_multicast_netns(struct genl_family *family,
+					  struct net *net, struct sk_buff *skb,
 					  u32 portid, unsigned int group, gfp_t flags)
 {
 	return nlmsg_multicast(net->genl_sock, skb, portid, group, flags);
@@ -260,19 +263,23 @@ static inline int genlmsg_multicast_netns(struct net *net, struct sk_buff *skb,
 
 /**
  * genlmsg_multicast - multicast a netlink message to the default netns
+ * @family: the generic netlink family
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
  * @group: multicast group id
  * @flags: allocation flags
  */
-static inline int genlmsg_multicast(struct sk_buff *skb, u32 portid,
+static inline int genlmsg_multicast(struct genl_family *family,
+				    struct sk_buff *skb, u32 portid,
 				    unsigned int group, gfp_t flags)
 {
-	return genlmsg_multicast_netns(&init_net, skb, portid, group, flags);
+	return genlmsg_multicast_netns(family, &init_net, skb,
+				       portid, group, flags);
 }
 
 /**
  * genlmsg_multicast_allns - multicast a netlink message to all net namespaces
+ * @family: the generic netlink family
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
  * @group: multicast group id
@@ -280,7 +287,8 @@ static inline int genlmsg_multicast(struct sk_buff *skb, u32 portid,
  *
  * This function must hold the RTNL or rcu_read_lock().
  */
-int genlmsg_multicast_allns(struct sk_buff *skb, u32 portid,
+int genlmsg_multicast_allns(struct genl_family *family,
+			    struct sk_buff *skb, u32 portid,
 			    unsigned int group, gfp_t flags);
 
 /**
@@ -353,6 +361,7 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
 
 /**
  * genl_set_err - report error to genetlink broadcast listeners
+ * @family: the generic netlink family
  * @net: the network namespace to report the error to
  * @portid: the PORTID of a process that we want to skip (if any)
  * @group: the broadcast group that will notice the error
@@ -361,7 +370,8 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
  * This function returns the number of broadcast listeners that have set the
  * NETLINK_RECV_NO_ENOBUFS socket option.
  */
-static inline int genl_set_err(struct net *net, u32 portid, u32 group, int code)
+static inline int genl_set_err(struct genl_family *family, struct net *net,
+			       u32 portid, u32 group, int code)
 {
 	return netlink_set_err(net->genl_sock, portid, group, code);
 }
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 46ee488c001503..1eab1dc488215f 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -120,7 +120,8 @@ static void send_dm_alert(struct work_struct *work)
 	skb = reset_per_cpu_data(data);
 
 	if (skb)
-		genlmsg_multicast(skb, 0, dm_mcgrp.id, GFP_KERNEL);
+		genlmsg_multicast(&net_drop_monitor_family, skb, 0,
+				  dm_mcgrp.id, GFP_KERNEL);
 }
 
 /*
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 908e335dcdc911..0009416c08c2df 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -129,7 +129,8 @@ void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_multicast(skb, 0, hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&hsr_genl_family, skb, 0,
+			  hsr_network_genl_mcgrp.id, GFP_ATOMIC);
 
 	return;
 
@@ -163,7 +164,8 @@ void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN])
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_multicast(skb, 0, hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&hsr_genl_family, skb, 0,
+			  hsr_network_genl_mcgrp.id, GFP_ATOMIC);
 
 	return;
 
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 1a81709a4717ea..5172f467a38357 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -70,7 +70,7 @@ int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
 	if (genlmsg_end(msg, hdr) < 0)
 		goto out;
 
-	return genlmsg_multicast(msg, 0, group, GFP_ATOMIC);
+	return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC);
 out:
 	nlmsg_free(msg);
 	return -ENOBUFS;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index e9ef640200b431..36e3a86cacf6c0 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -883,11 +883,12 @@ static int genl_ctrl_event(int event, struct genl_family *family,
 		return PTR_ERR(msg);
 
 	if (!family->netnsok) {
-		genlmsg_multicast_netns(&init_net, msg, 0,
+		genlmsg_multicast_netns(&genl_ctrl, &init_net, msg, 0,
 					GENL_ID_CTRL, GFP_KERNEL);
 	} else {
 		rcu_read_lock();
-		genlmsg_multicast_allns(msg, 0, GENL_ID_CTRL, GFP_ATOMIC);
+		genlmsg_multicast_allns(&genl_ctrl, msg, 0,
+					GENL_ID_CTRL, GFP_ATOMIC);
 		rcu_read_unlock();
 	}
 
@@ -993,14 +994,15 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group,
 	return err;
 }
 
-int genlmsg_multicast_allns(struct sk_buff *skb, u32 portid, unsigned int group,
-			    gfp_t flags)
+int genlmsg_multicast_allns(struct genl_family *family, struct sk_buff *skb,
+			    u32 portid, unsigned int group, gfp_t flags)
 {
 	return genlmsg_mcast(skb, portid, group, flags);
 }
 EXPORT_SYMBOL(genlmsg_multicast_allns);
 
-void genl_notify(struct sk_buff *skb, struct net *net, u32 portid, u32 group,
+void genl_notify(struct genl_family *family,
+		 struct sk_buff *skb, struct net *net, u32 portid, u32 group,
 		 struct nlmsghdr *nlh, gfp_t flags)
 {
 	struct sock *sk = net->genl_sock;
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index fe6760d328a01a..3092df313fb112 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -194,7 +194,8 @@ int nfc_genl_targets_found(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	return genlmsg_multicast(&nfc_genl_family, msg, 0,
+				 nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -223,7 +224,8 @@ int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -255,7 +257,8 @@ int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -285,7 +288,8 @@ int nfc_genl_tm_deactivated(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -318,7 +322,8 @@ int nfc_genl_device_added(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -348,7 +353,8 @@ int nfc_genl_device_removed(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -414,7 +420,8 @@ int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list)
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	return genlmsg_multicast(&nfc_genl_family, msg, 0,
+				 nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -448,7 +455,8 @@ int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -479,7 +487,8 @@ int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -600,7 +609,8 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
 
 	dev->dep_link_up = true;
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 	return 0;
 
@@ -632,7 +642,8 @@ int nfc_genl_dep_link_down_event(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 	return 0;
 
@@ -1137,7 +1148,8 @@ int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -1308,7 +1320,8 @@ static void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	kfree(ctx);
 
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 3e2bb15fd71724..5c19846b1d2a70 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -61,10 +61,11 @@
 
 int ovs_net_id __read_mostly;
 
-static void ovs_notify(struct sk_buff *skb, struct genl_info *info,
+static void ovs_notify(struct genl_family *family,
+		       struct sk_buff *skb, struct genl_info *info,
 		       struct genl_multicast_group *grp)
 {
-	genl_notify(skb, genl_info_net(info), info->snd_portid,
+	genl_notify(family, skb, genl_info_net(info), info->snd_portid,
 		    grp->id, info->nlhdr, GFP_KERNEL);
 }
 
@@ -877,9 +878,10 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	ovs_unlock();
 
 	if (!IS_ERR(reply))
-		ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+		ovs_notify(&dp_flow_genl_family, reply, info,
+			   &ovs_dp_flow_multicast_group);
 	else
-		genl_set_err(sock_net(skb->sk), 0,
+		genl_set_err(&dp_flow_genl_family, sock_net(skb->sk), 0,
 			     ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
 	return 0;
 
@@ -990,7 +992,8 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	ovs_flow_free(flow, true);
 	ovs_unlock();
 
-	ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+	ovs_notify(&dp_flow_genl_family, reply, info,
+		   &ovs_dp_flow_multicast_group);
 	return 0;
 unlock:
 	ovs_unlock();
@@ -1237,7 +1240,8 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 
 	ovs_unlock();
 
-	ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info,
+		   &ovs_dp_datapath_multicast_group);
 	return 0;
 
 err_destroy_local_port:
@@ -1302,7 +1306,8 @@ static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	__dp_destroy(dp);
 	ovs_unlock();
 
-	ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info,
+		   &ovs_dp_datapath_multicast_group);
 
 	return 0;
 unlock:
@@ -1326,14 +1331,15 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
 				      info->snd_seq, OVS_DP_CMD_NEW);
 	if (IS_ERR(reply)) {
 		err = PTR_ERR(reply);
-		genl_set_err(sock_net(skb->sk), 0,
+		genl_set_err(&dp_datapath_genl_family, sock_net(skb->sk), 0,
 			     ovs_dp_datapath_multicast_group.id, err);
 		err = 0;
 		goto unlock;
 	}
 
 	ovs_unlock();
-	ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info,
+		   &ovs_dp_datapath_multicast_group);
 
 	return 0;
 unlock:
@@ -1425,7 +1431,7 @@ static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
 	[OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED },
 };
 
-static struct genl_family dp_vport_genl_family = {
+struct genl_family dp_vport_genl_family = {
 	.id = GENL_ID_GENERATE,
 	.hdrsize = sizeof(struct ovs_header),
 	.name = OVS_VPORT_FAMILY,
@@ -1595,7 +1601,8 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
 		goto exit_unlock;
 	}
 
-	ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info,
+		   &ovs_dp_vport_multicast_group);
 
 exit_unlock:
 	ovs_unlock();
@@ -1642,7 +1649,8 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 	BUG_ON(err < 0);
 
 	ovs_unlock();
-	ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info,
+		   &ovs_dp_vport_multicast_group);
 	return 0;
 
 exit_free:
@@ -1679,7 +1687,8 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	err = 0;
 	ovs_dp_detach_port(vport);
 
-	ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info,
+		   &ovs_dp_vport_multicast_group);
 
 exit_unlock:
 	ovs_unlock();
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index d3d14a58aa9141..4067ea41be28d7 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -177,6 +177,7 @@ static inline struct vport *ovs_vport_ovsl(const struct datapath *dp, int port_n
 }
 
 extern struct notifier_block ovs_dp_device_notifier;
+extern struct genl_family dp_vport_genl_family;
 extern struct genl_multicast_group ovs_dp_vport_multicast_group;
 
 void ovs_dp_process_received_packet(struct vport *, struct sk_buff *);
diff --git a/net/openvswitch/dp_notify.c b/net/openvswitch/dp_notify.c
index 3d55ead6095c9f..f4b66c84ea0b9c 100644
--- a/net/openvswitch/dp_notify.c
+++ b/net/openvswitch/dp_notify.c
@@ -34,13 +34,14 @@ static void dp_detach_port_notify(struct vport *vport)
 					  OVS_VPORT_CMD_DEL);
 	ovs_dp_detach_port(vport);
 	if (IS_ERR(notify)) {
-		genl_set_err(ovs_dp_get_net(dp), 0,
+		genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0,
 			     ovs_dp_vport_multicast_group.id,
 			     PTR_ERR(notify));
 		return;
 	}
 
-	genlmsg_multicast_netns(ovs_dp_get_net(dp), notify, 0,
+	genlmsg_multicast_netns(&dp_vport_genl_family,
+				ovs_dp_get_net(dp), notify, 0,
 				ovs_dp_vport_multicast_group.id,
 				GFP_KERNEL);
 }
diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index ff19cbeaf607d9..f37dd3c5576d37 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -279,7 +279,8 @@ int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb)
 
 	d_printf(1, dev, "CTX: wimax msg, %zu bytes\n", size);
 	d_dump(2, dev, msg, size);
-	genlmsg_multicast(skb, 0, wimax_gnl_mcg.id, GFP_KERNEL);
+	genlmsg_multicast(&wimax_gnl_family, skb, 0,
+			  wimax_gnl_mcg.id, GFP_KERNEL);
 	d_printf(1, dev, "CTX: genl multicast done\n");
 	return 0;
 }
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 6328afe9031940..18888748e6997c 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -177,7 +177,8 @@ int wimax_gnl_re_state_change_send(
 		goto out;
 	}
 	genlmsg_end(report_skb, header);
-	genlmsg_multicast(report_skb, 0, wimax_gnl_mcg.id, GFP_KERNEL);
+	genlmsg_multicast(&wimax_gnl_family, report_skb, 0,
+			  wimax_gnl_mcg.id, GFP_KERNEL);
 out:
 	d_fnend(3, dev, "(wimax_dev %p report_skb %p) = %d\n",
 		wimax_dev, report_skb, result);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1b6c5dd4dccfc7..f20edfd2e1f07b 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6868,7 +6868,7 @@ void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
 
 	nla_nest_end(skb, data);
 	genlmsg_end(skb, hdr);
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
 				nl80211_testmode_mcgrp.id, gfp);
 }
 EXPORT_SYMBOL(cfg80211_testmode_event);
@@ -9597,7 +9597,7 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_config_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9707,7 +9707,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9726,7 +9726,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9745,7 +9745,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9764,7 +9764,7 @@ void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9782,7 +9782,7 @@ void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9837,8 +9837,8 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
 	genlmsg_end(msg, hdr);
 
 	rcu_read_lock();
-	genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
-				GFP_ATOMIC);
+	genlmsg_multicast_allns(&nl80211_fam, msg, 0,
+				nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
 	rcu_read_unlock();
 
 	return;
@@ -9873,7 +9873,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -9961,7 +9961,7 @@ static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10017,7 +10017,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10056,7 +10056,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10094,7 +10094,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, GFP_KERNEL);
 	return;
 
@@ -10128,7 +10128,7 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10169,7 +10169,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10208,7 +10208,7 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10261,8 +10261,8 @@ void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
 	genlmsg_end(msg, hdr);
 
 	rcu_read_lock();
-	genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
-				GFP_ATOMIC);
+	genlmsg_multicast_allns(&nl80211_fam, msg, 0,
+				nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
 	rcu_read_unlock();
 
 	return;
@@ -10307,7 +10307,7 @@ static void nl80211_send_remain_on_chan_event(
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10362,7 +10362,7 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 }
 EXPORT_SYMBOL(cfg80211_new_sta);
@@ -10392,7 +10392,7 @@ void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10428,7 +10428,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10590,7 +10590,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10639,7 +10639,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10684,7 +10684,7 @@ static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10742,7 +10742,7 @@ nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10789,7 +10789,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10866,7 +10866,7 @@ void cfg80211_cqm_txe_notify(struct net_device *dev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10915,7 +10915,7 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10962,7 +10962,7 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11002,7 +11002,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11154,7 +11154,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11196,7 +11196,7 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11279,7 +11279,7 @@ void cfg80211_ft_event(struct net_device *netdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, GFP_KERNEL);
 }
 EXPORT_SYMBOL(cfg80211_ft_event);