netdev - Re: [PATCH v1 net-next 02/14] net: Add ops_undo

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Message-ID: <202504111024.Qc5fW99d-lkp@intel.com>
Date: Fri, 11 Apr 2025 11:16:36 +0800
From: kernel test robot <lkp@...el.com>
To: Kuniyuki Iwashima <kuniyu@...zon.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>
Cc: oe-kbuild-all@...ts.linux.dev, netdev@...r.kernel.org,
	Simon Horman <horms@...nel.org>,
	Kuniyuki Iwashima <kuniyu@...zon.com>
Subject: Re: [PATCH v1 net-next 02/14] net: Add ops_undo_single for module
 load/unload.

Hi Kuniyuki,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/net-Factorise-setup_net-and-cleanup_net/20250410-102752
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250410022004.8668-3-kuniyu%40amazon.com
patch subject: [PATCH v1 net-next 02/14] net: Add ops_undo_single for module load/unload.
config: loongarch-randconfig-001-20250411 (https://download.01.org/0day-ci/archive/20250411/202504111024.Qc5fW99d-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250411/202504111024.Qc5fW99d-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/202504111024.Qc5fW99d-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   net/core/net_namespace.c: In function '__unregister_pernet_operations':
>> net/core/net_namespace.c:1311:17: error: implicit declaration of function 'free_exit_list'; did you mean 'ops_exit_list'? [-Wimplicit-function-declaration]
    1311 |                 free_exit_list(ops, &net_exit_list);
         |                 ^~~~~~~~~~~~~~
         |                 ops_exit_list
   net/core/net_namespace.c: At top level:
>> net/core/net_namespace.c:238:13: warning: 'ops_undo_single' defined but not used [-Wunused-function]
     238 | static void ops_undo_single(struct pernet_operations *ops,
         |             ^~~~~~~~~~~~~~~


vim +1311 net/core/net_namespace.c

ed160e839d2e11 Denis V. Lunev    2007-11-13  1303  
f875bae0653349 Eric W. Biederman 2009-11-29  1304  static void __unregister_pernet_operations(struct pernet_operations *ops)
ed160e839d2e11 Denis V. Lunev    2007-11-13  1305  {
f8c46cb39079b7 Dmitry Torokhov   2016-08-10  1306  	if (!init_net_initialized) {
f8c46cb39079b7 Dmitry Torokhov   2016-08-10  1307  		list_del(&ops->list);
f8c46cb39079b7 Dmitry Torokhov   2016-08-10  1308  	} else {
72ad937abd0a43 Eric W. Biederman 2009-12-03  1309  		LIST_HEAD(net_exit_list);
72ad937abd0a43 Eric W. Biederman 2009-12-03  1310  		list_add(&init_net.exit_list, &net_exit_list);
41467d2ff4dfe1 Yajun Deng        2021-08-17 @1311  		free_exit_list(ops, &net_exit_list);
ed160e839d2e11 Denis V. Lunev    2007-11-13  1312  	}
f8c46cb39079b7 Dmitry Torokhov   2016-08-10  1313  }
f875bae0653349 Eric W. Biederman 2009-11-29  1314  

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