ipv6: remove RTNL protection from inet6_dump_addr()

We can now remove RTNL acquisition while running
inet6_dump_addr(), inet6_dump_ifmcaddr()
and inet6_dump_ifacaddr().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/addrconf.c

@@ -7454,15 +7454,18 @@ int __init addrconf_init(void)
 		goto errout;
 	err = rtnl_register_module(THIS_MODULE, PF_INET6, RTM_GETADDR,
 				   inet6_rtm_getaddr, inet6_dump_ifaddr,
-				   RTNL_FLAG_DOIT_UNLOCKED);
+				   RTNL_FLAG_DOIT_UNLOCKED |
+				   RTNL_FLAG_DUMP_UNLOCKED);
 	if (err < 0)
 		goto errout;
 	err = rtnl_register_module(THIS_MODULE, PF_INET6, RTM_GETMULTICAST,
-				   NULL, inet6_dump_ifmcaddr, 0);
+				   NULL, inet6_dump_ifmcaddr,
+				   RTNL_FLAG_DUMP_UNLOCKED);
 	if (err < 0)
 		goto errout;
 	err = rtnl_register_module(THIS_MODULE, PF_INET6, RTM_GETANYCAST,
-				   NULL, inet6_dump_ifacaddr, 0);
+				   NULL, inet6_dump_ifacaddr,
+				   RTNL_FLAG_DUMP_UNLOCKED);
 	if (err < 0)
 		goto errout;
 	err = rtnl_register_module(THIS_MODULE, PF_INET6, RTM_GETNETCONF,