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Message-ID: <202310161728.mW3lt1Jl-lkp@intel.com>
Date: Mon, 16 Oct 2023 17:14:00 +0800
From: kernel test robot <lkp@...el.com>
To: xiaolinkui <xiaolinkui@....com>, pablo@...filter.org,
	kadlec@...filter.org, fw@...len.de, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	justinstitt@...gle.com, kuniyu@...zon.com
Cc: oe-kbuild-all@...ts.linux.dev, netfilter-devel@...r.kernel.org,
	coreteam@...filter.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, Linkui Xiao <xiaolinkui@...inos.cn>
Subject: Re: [PATCH] netfilter: ipset: wait for xt_recseq on all cpus

Hi xiaolinkui,

kernel test robot noticed the following build errors:

[auto build test ERROR on netfilter-nf/main]
[also build test ERROR on nf-next/master horms-ipvs/master linus/master v6.6-rc6 next-20231016]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/xiaolinkui/netfilter-ipset-wait-for-xt_recseq-on-all-cpus/20231005-234042
base:   git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main
patch link:    https://lore.kernel.org/r/20231005115022.12902-1-xiaolinkui%40126.com
patch subject: [PATCH] netfilter: ipset: wait for xt_recseq on all cpus
config: i386-randconfig-016-20231016 (https://download.01.org/0day-ci/archive/20231016/202310161728.mW3lt1Jl-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231016/202310161728.mW3lt1Jl-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310161728.mW3lt1Jl-lkp@intel.com/

All errors (new ones prefixed by >>):

   ld: net/netfilter/ipset/ip_set_core.o: in function `wait_xt_recseq':
>> net/netfilter/ipset/ip_set_core.c:1194: undefined reference to `xt_recseq'


vim +1194 net/netfilter/ipset/ip_set_core.c

  1187	
  1188	static void wait_xt_recseq(void)
  1189	{
  1190		unsigned int cpu;
  1191	
  1192		/* wait for even xt_recseq on all cpus */
  1193		for_each_possible_cpu(cpu) {
> 1194			seqcount_t *s = &per_cpu(xt_recseq, cpu);
  1195			u32 seq = raw_read_seqcount(s);
  1196	
  1197			if (seq & 1) {
  1198				do {
  1199					cond_resched();
  1200					cpu_relax();
  1201				} while (seq == raw_read_seqcount(s));
  1202			}
  1203		}
  1204	}
  1205	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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