Re: [PATCH nf 1/2] netfilter: nf_tables: limit maximum number of jumps/gotos per netns

[kernel test robot <lkp@intel.com>]

Hi Pablo,

kernel test robot noticed the following build warnings:

[auto build test WARNING on netfilter-nf/main]
[also build test WARNING on linus/master v6.18-rc3 next-20251029]
[cannot apply to nf-next/master]
[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/Pablo-Neira-Ayuso/netfilter-nf_tables-limit-maximum-number-of-jumps-gotos-per-netns/20251028-062221
base:   https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git main
patch link:    https://lore.kernel.org/r/20251027221722.183398-2-pablo%40netfilter.org
patch subject: [PATCH nf 1/2] netfilter: nf_tables: limit maximum number of jumps/gotos per netns
config: arm-randconfig-003-20251028 (https://download.01.org/0day-ci/archive/20251029/202510291201.P7nkKt1R-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project d1c086e82af239b245fe8d7832f2753436634990)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251029/202510291201.P7nkKt1R-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510291201.P7nkKt1R-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from net/netfilter/core.c:27:
   In file included from include/net/netfilter/nf_tables.h:13:
   In file included from include/net/netfilter/nf_flow_table.h:13:
   In file included from include/linux/if_pppox.h:17:
   include/uapi/linux/if_pppox.h:71:4: warning: field sa_addr within 'struct sockaddr_pppox' is less aligned than 'union (unnamed union at include/uapi/linux/if_pppox.h:68:2)' and is usually due to 'struct sockaddr_pppox' being packed, which can lead to unaligned accesses [-Wunaligned-access]
      71 |         } sa_addr;
         |           ^
>> net/netfilter/core.c:832:1: warning: unused label 'err_nft_pernet' [-Wunused-label]
     832 | err_nft_pernet:
         | ^~~~~~~~~~~~~~~
   2 warnings generated.


vim +/err_nft_pernet +832 net/netfilter/core.c

   805	
   806	int __init netfilter_init(void)
   807	{
   808		int ret;
   809	
   810		ret = register_pernet_subsys(&netfilter_net_ops);
   811		if (ret < 0)
   812			goto err;
   813	
   814	#ifdef CONFIG_LWTUNNEL
   815		ret = netfilter_lwtunnel_init();
   816		if (ret < 0)
   817			goto err_lwtunnel_pernet;
   818	#endif
   819	#if IS_ENABLED(CONFIG_NF_TABLES)
   820		ret = netfilter_nf_tables_sysctl_init();
   821		if (ret < 0)
   822			goto err_nft_pernet;
   823	#endif
   824		ret = netfilter_log_init();
   825		if (ret < 0)
   826			goto err_log_pernet;
   827	
   828		return 0;
   829	
   830	err_log_pernet:
   831		netfilter_nf_tables_sysctl_fini();
 > 832	err_nft_pernet:

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