netdev - Re: [PATCH 2/5] ipvs: Stop calling __dev_get_by_name() repeatedly when starting sync daemon

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Date:	Tue, 14 Jun 2016 10:14:46 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Quentin Armitage <quentin@...itage.org.uk>
Cc:	kbuild-all@...org, Wensong Zhang <wensong@...ux-vs.org>,
	Simon Horman <horms@...ge.net.au>,
	Julian Anastasov <ja@....bg>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Patrick McHardy <kaber@...sh.net>,
	Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	lvs-devel@...r.kernel.org, netfilter-devel@...r.kernel.org,
	coreteam@...filter.org, linux-kernel@...r.kernel.org,
	Quentin Armitage <quentin@...itage.org.uk>
Subject: Re: [PATCH 2/5] ipvs: Stop calling __dev_get_by_name() repeatedly
 when starting sync daemon

Hi,

[auto build test ERROR on ipvs-next/master]
[also build test ERROR on v4.7-rc3 next-20160609]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Quentin-Armitage/ipvs-Enable-setting-IPv6-multicast-address-for-ipvs-sync-daemon-backup/20160614-095939
base:   https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-next.git master
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sparc64 

Note: the linux-review/Quentin-Armitage/ipvs-Enable-setting-IPv6-multicast-address-for-ipvs-sync-daemon-backup/20160614-095939 HEAD db86ecb72d6516577334b1b855efa8bf1988321e builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   In file included from net/netfilter/ipvs/ip_vs_sync.c:57:0:
   net/netfilter/ipvs/ip_vs_sync.c: In function 'make_send_sock':
>> net/netfilter/ipvs/ip_vs_sync.c:1497:10: error: 'struct netns_ipvs' has no member named 'mcast_ifn'
         ipvs->mcast_ifn, &addr);
             ^
   include/net/ip_vs.h:243:37: note: in definition of macro 'IP_VS_DBG'
       printk(KERN_DEBUG pr_fmt(msg), ##__VA_ARGS__); \
                                        ^
>> net/netfilter/ipvs/ip_vs_sync.c:1497:24: error: 'addr' undeclared (first use in this function)
         ipvs->mcast_ifn, &addr);
                           ^
   include/net/ip_vs.h:243:37: note: in definition of macro 'IP_VS_DBG'
       printk(KERN_DEBUG pr_fmt(msg), ##__VA_ARGS__); \
                                        ^
   net/netfilter/ipvs/ip_vs_sync.c:1497:24: note: each undeclared identifier is reported only once for each function it appears in
         ipvs->mcast_ifn, &addr);
                           ^
   include/net/ip_vs.h:243:37: note: in definition of macro 'IP_VS_DBG'
       printk(KERN_DEBUG pr_fmt(msg), ##__VA_ARGS__); \
                                        ^

vim +1497 net/netfilter/ipvs/ip_vs_sync.c

  1491		result = sysctl_sync_sock_size(ipvs);
  1492		if (result > 0)
  1493			set_sock_size(sock->sk, 1, result);
  1494	
  1495		if (AF_INET == ipvs->mcfg.mcast_af) {
  1496			IP_VS_DBG(7, "binding socket with (%s) %pI4\n",
> 1497				  ipvs->mcast_ifn, &addr);
  1498	
  1499			result = bind_mcastif_addr(sock, dev);
  1500		}

---
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https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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