netdev - Re: [PATCH net] igmp: do not remove igmp souce list info when set link down

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Date:   Mon, 7 Nov 2016 15:35:49 +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>,
        Daniel Borkmann <daniel@...earbox.net>,
        Hangbin Liu <liuhangbin@...il.com>
Subject: Re: [PATCH net] igmp: do not remove igmp souce list info when set
 link down

Hi Hangbin,

[auto build test ERROR on net/master]

url:    https://github.com/0day-ci/linux/commits/Hangbin-Liu/igmp-do-not-remove-igmp-souce-list-info-when-set-link-down/20161107-151122
config: i386-randconfig-x007-201645 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   net/ipv4/igmp.c: In function 'igmpv3_del_delrec':
>> net/ipv4/igmp.c:1160:35: error: 'sysctl_igmp_qrv' undeclared (first use in this function)
      im->crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
                                      ^~~~~~~~~~~~~~~
   net/ipv4/igmp.c:1160:35: note: each undeclared identifier is reported only once for each function it appears in

vim +/sysctl_igmp_qrv +1160 net/ipv4/igmp.c

  1154		}
  1155		spin_unlock_bh(&in_dev->mc_tomb_lock);
  1156	
  1157		spin_lock_bh(&im->lock);
  1158		if (pmc) {
  1159			im->interface = pmc->interface;
> 1160			im->crcount = in_dev->mr_qrv ?: sysctl_igmp_qrv;
  1161			im->sfmode = pmc->sfmode;
  1162			if (pmc->sfmode == MCAST_INCLUDE) {
  1163				im->tomb = pmc->tomb;

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