netdev - Re: [PATCH net-next] bridge: add igmpv3 and mldv2 query support

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Date:   Fri, 18 Nov 2016 18:16:55 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Hangbin Liu <liuhangbin@...il.com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org,
        Hannes Frederic Sowa <hannes@...essinduktion.org>,
        Nikolay Aleksandrov <nikolay@...ulusnetworks.com>,
        linus.luessing@...3.blue, Hangbin Liu <liuhangbin@...il.com>
Subject: Re: [PATCH net-next] bridge: add igmpv3 and mldv2 query support

Hi Hangbin,

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

url:    https://github.com/0day-ci/linux/commits/Hangbin-Liu/bridge-add-igmpv3-and-mldv2-query-support/20161118-155854
config: i386-randconfig-r0-201646 (attached as .config)
compiler: gcc-5 (Debian 5.4.1-2) 5.4.1 20160904
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   net/bridge/br_multicast.c: In function 'mld_force_mld_version':
>> net/bridge/br_multicast.c:688:24: error: 'struct net' has no member named 'ipv6'
     if (dev_net(idev->dev)->ipv6.devconf_all->force_mld_version != 0)
                           ^
   net/bridge/br_multicast.c:689:28: error: 'struct net' has no member named 'ipv6'
      return dev_net(idev->dev)->ipv6.devconf_all->force_mld_version;
                               ^
   net/bridge/br_multicast.c: In function 'br_multicast_alloc_query':
>> net/bridge/br_multicast.c:699:27: error: implicit declaration of function '__in6_dev_get' [-Werror=implicit-function-declaration]
     struct inet6_dev *idev = __in6_dev_get(br->dev);
                              ^
>> net/bridge/br_multicast.c:699:27: warning: initialization makes pointer from integer without a cast [-Wint-conversion]
>> net/bridge/br_multicast.c:699:20: warning: unused variable 'idev' [-Wunused-variable]
     struct inet6_dev *idev = __in6_dev_get(br->dev);
                       ^
   net/bridge/br_multicast.c: At top level:
   net/bridge/br_multicast.c:686:12: warning: 'mld_force_mld_version' defined but not used [-Wunused-function]
    static int mld_force_mld_version(const struct inet6_dev *idev)
               ^
   cc1: some warnings being treated as errors

vim +688 net/bridge/br_multicast.c

   682		return skb;
   683	}
   684	#endif
   685	
   686	static int mld_force_mld_version(const struct inet6_dev *idev)
   687	{
 > 688		if (dev_net(idev->dev)->ipv6.devconf_all->force_mld_version != 0)
 > 689			return dev_net(idev->dev)->ipv6.devconf_all->force_mld_version;
   690		else
   691			return idev->cnf.force_mld_version;
   692	}
   693	
   694	static struct sk_buff *br_multicast_alloc_query(struct net_bridge *br,
   695							struct br_ip *addr,
   696							u8 *igmp_type)
   697	{
   698		struct in_device *in_dev = __in_dev_get_rcu(br->dev);
 > 699		struct inet6_dev *idev = __in6_dev_get(br->dev);
   700		switch (addr->proto) {
   701		case htons(ETH_P_IP):
   702			if (IGMP_V3_SEEN(in_dev))

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