Re: [PATCH v4 net-next 3/5] psp: add a new netdev event for dev unregister

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

Hi Wei,

kernel test robot noticed the following build warnings:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Wei-Wang/psp-add-admin-non-admin-version-of-psp_device_get_locked/20260312-080310
base:   net-next/main
patch link:    https://lore.kernel.org/r/20260311235904.2392010-4-weibunny.kernel%40gmail.com
patch subject: [PATCH v4 net-next 3/5] psp: add a new netdev event for dev unregister
config: x86_64-randconfig-014-20260312 (https://download.01.org/0day-ci/archive/20260312/202603121737.vPEHjYAG-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260312/202603121737.vPEHjYAG-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/202603121737.vPEHjYAG-lkp@intel.com/

All warnings (new ones prefixed by >>):

   net/psp/psp_main.c: In function 'psp_init':
>> net/psp/psp_main.c:449:13: warning: unused variable 'err' [-Wunused-variable]
     449 |         int err;
         |             ^~~


vim +/err +449 net/psp/psp_main.c

   446	
   447	static int __init psp_init(void)
   448	{
 > 449		int err;
   450	
   451		mutex_init(&psp_devs_lock);
   452	
   453		return genl_register_family(&psp_nl_family);
   454	}
   455	

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