net: tipc: have genetlink code to parse the attrs during dumpit

Benefit from the fact that the generic netlink code can parse the attrs
for dumpit op and avoid need to parse it in the op callback.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/netlink.c

@@ -176,7 +176,8 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
 	},
 	{
 		.cmd	= TIPC_NL_PUBL_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.validate = GENL_DONT_VALIDATE_STRICT |
+			    GENL_DONT_VALIDATE_DUMP_STRICT,
 		.dumpit	= tipc_nl_publ_dump,
 	},
 	{
@@ -239,7 +240,8 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
 	},
 	{
 		.cmd	= TIPC_NL_MON_PEER_GET,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.validate = GENL_DONT_VALIDATE_STRICT |
+			    GENL_DONT_VALIDATE_DUMP_STRICT,
 		.dumpit	= tipc_nl_node_dump_monitor_peer,
 	},
 	{
@@ -250,7 +252,8 @@ static const struct genl_ops tipc_genl_v2_ops[] = {
 #ifdef CONFIG_TIPC_MEDIA_UDP
 	{
 		.cmd	= TIPC_NL_UDP_GET_REMOTEIP,
-		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.validate = GENL_DONT_VALIDATE_STRICT |
+			    GENL_DONT_VALIDATE_DUMP_STRICT,
 		.dumpit	= tipc_udp_nl_dump_remoteip,
 	},
 #endif

net/tipc/node.c

@@ -2484,13 +2484,9 @@ int tipc_nl_node_dump_monitor_peer(struct sk_buff *skb,
 	int err;
 
 	if (!prev_node) {
-		struct nlattr **attrs;
+		struct nlattr **attrs = genl_dumpit_info(cb)->attrs;
 		struct nlattr *mon[TIPC_NLA_MON_MAX + 1];
 
-		err = tipc_nlmsg_parse(cb->nlh, &attrs);
-		if (err)
-			return err;
-
 		if (!attrs[TIPC_NLA_MON])
 			return -EINVAL;
 

net/tipc/socket.c

@@ -3588,13 +3588,9 @@ int tipc_nl_publ_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	struct tipc_sock *tsk;
 
 	if (!tsk_portid) {
-		struct nlattr **attrs;
+		struct nlattr **attrs = genl_dumpit_info(cb)->attrs;
 		struct nlattr *sock[TIPC_NLA_SOCK_MAX + 1];
 
-		err = tipc_nlmsg_parse(cb->nlh, &attrs);
-		if (err)
-			return err;
-
 		if (!attrs[TIPC_NLA_SOCK])
 			return -EINVAL;
 

net/tipc/udp_media.c

@@ -448,15 +448,11 @@ int tipc_udp_nl_dump_remoteip(struct sk_buff *skb, struct netlink_callback *cb)
 	int i;
 
 	if (!bid && !skip_cnt) {
+		struct nlattr **attrs = genl_dumpit_info(cb)->attrs;
 		struct net *net = sock_net(skb->sk);
 		struct nlattr *battrs[TIPC_NLA_BEARER_MAX + 1];
-		struct nlattr **attrs;
 		char *bname;
 
-		err = tipc_nlmsg_parse(cb->nlh, &attrs);
-		if (err)
-			return err;
-
 		if (!attrs[TIPC_NLA_BEARER])
 			return -EINVAL;