Hi Patrick,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Patrick-Ruddy/netlink-ipv4-IGMP-join-notifications/20180831-105548
config: i386-randconfig-s0-201834 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   net/ipv6/addrconf.c: In function 'inet6_dump_ifaddr':
>> net/ipv6/addrconf.c:5039:10: error: expected expression before '=' token
      ret =  = inet6_dump_addr(skb, cb, type, RTM_NEWADDR);
             ^

vim +5039 net/ipv6/addrconf.c

  5031	
  5032	static int inet6_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
  5033	{
  5034		enum addr_type_t type;
  5035		int ret;
  5036	
  5037		type = cb->args[3];
  5038		if (type == UNICAST_ADDR) {
> 5039			ret =  = inet6_dump_addr(skb, cb, type, RTM_NEWADDR);
  5040			if (ret > 0)
  5041				goto done;
  5042	
  5043			/* reset indices and move on to multicast*/
  5044			cb->args[0] = 0;
  5045			cb->args[1] = 0;
  5046			cb->args[2] = 0;
  5047			type = MULTICAST_ADDR;
  5048		}
  5049	
  5050		/* do the RTM_NEWADDR notifications for multicast type */
  5051		ret = inet6_dump_addr(skb, cb, type, RTM_NEWADDR);
  5052	 done:
  5053		cb->args[3] = type;
  5054		return ret;
  5055	}
  5056	

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