[PATCH v5 bpf-next 1/5] namei: Introduce new helper function path_walk_parent()

[kernel test robot]

Hi Song,

kernel test robot noticed the following build warnings:

[auto build test WARNING on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Song-Liu/namei-Introduce-new-helper-function-path_walk_parent/20250617-141322
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
patch link:    https://lore.kernel.org/r/20250617061116.3681325-2-song%40kernel.org
patch subject: [PATCH v5 bpf-next 1/5] namei: Introduce new helper function path_walk_parent()
config: loongarch-randconfig-r072-20250618 (https://download.01.org/0day-ci/archive/20250618/202506180814.GoByWn1r-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 12.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250618/202506180814.GoByWn1r-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506180814.GoByWn1r-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: fs/namei.c:2072 function parameter 'path' not described in '__path_walk_parent'
>> Warning: fs/namei.c:2072 function parameter 'root' not described in '__path_walk_parent'
>> Warning: fs/namei.c:2072 function parameter 'flags' not described in '__path_walk_parent'

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