netdev - Re: [PATCH 3/4] igmp: Namespaceify igmp_llm

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Date:	Tue, 9 Feb 2016 05:52:13 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Nikolay Borisov <kernel@...p.com>
Cc:	kbuild-all@...org, davem@...emloft.net, ebiederm@...ssion.com,
	netdev@...r.kernel.org, edumazet@...gle.com, pdowney@...cade.com,
	dsa@...ulusnetworks.com
Subject: Re: [PATCH 3/4] igmp: Namespaceify igmp_llm_reports sysctl knob

Hi Nikolay,

[auto build test WARNING on net-next/master]
[also build test WARNING on next-20160208]
[cannot apply to net/master v4.5-rc3]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Nikolay-Borisov/Make-igmp-sysctl-knobs-namespace-aware/20160209-053257
config: x86_64-randconfig-x017-201606 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   net/ipv4/igmp.c: In function 'igmp_group_dropped':
>> net/ipv4/igmp.c:1187:14: warning: unused variable 'net' [-Wunused-variable]
     struct net *net = dev_net(in_dev->dev);
                 ^
   net/ipv4/igmp.c: In function 'igmp_group_added':
   net/ipv4/igmp.c:1225:14: warning: unused variable 'net' [-Wunused-variable]
     struct net *net = dev_net(in_dev->dev);
                 ^

vim +/net +1187 net/ipv4/igmp.c

  1171			spin_lock_bh(&pmc->lock);
  1172			psf = pmc->tomb;
  1173			pmc->tomb = NULL;
  1174			spin_unlock_bh(&pmc->lock);
  1175			for (; psf; psf = psf_next) {
  1176				psf_next = psf->sf_next;
  1177				kfree(psf);
  1178			}
  1179		}
  1180		rcu_read_unlock();
  1181	}
  1182	#endif
  1183	
  1184	static void igmp_group_dropped(struct ip_mc_list *im)
  1185	{
  1186		struct in_device *in_dev = im->interface;
> 1187		struct net *net = dev_net(in_dev->dev);
  1188	#ifdef CONFIG_IP_MULTICAST
  1189		int reporter;
  1190	#endif
  1191	
  1192		if (im->loaded) {
  1193			im->loaded = 0;
  1194			ip_mc_filter_del(in_dev, im->multiaddr);
  1195		}

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Download attachment ".config.gz" of type "application/octet-stream" (21771 bytes)