[linux-next:master 12347/12886] drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h:22:6: warning: no previous prototype for function 'mlx5_lag_mpesw_init'

[linux-next:master 12347/12886] drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h:22:6: warning: no previous prototype for function 'mlx5_lag_mpesw_init'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   21498d01d045c5b95b93e0a0625ae965b4330ebe
commit: 94db3317781922ba52722c58061e0e8517d4d80d [12347/12886] net/mlx5: Support multiport eswitch mode
config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220520/202205200012.68rPHREP-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e00cbbec06c08dc616a0d52a20f678b8fbd4e304)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=94db3317781922ba52722c58061e0e8517d4d80d
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 94db3317781922ba52722c58061e0e8517d4d80d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/mellanox/mlx5/core/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c:4:
   In file included from drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h:13:
>> drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h:22:6: warning: no previous prototype for function 'mlx5_lag_mpesw_init' [-Wmissing-prototypes]
   void mlx5_lag_mpesw_init(struct mlx5_lag *ldev) {}
        ^
   drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h:22:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void mlx5_lag_mpesw_init(struct mlx5_lag *ldev) {}
   ^
   static 
>> drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h:23:6: warning: no previous prototype for function 'mlx5_lag_mpesw_cleanup' [-Wmissing-prototypes]
   void mlx5_lag_mpesw_cleanup(struct mlx5_lag *ldev) {}
        ^
   drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h:23:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void mlx5_lag_mpesw_cleanup(struct mlx5_lag *ldev) {}
   ^
   static 
   2 warnings generated.


vim +/mlx5_lag_mpesw_init +22 drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.h

    14	
    15	void mlx5_mpesw_work(struct work_struct *work);
    16	int mlx5_lag_do_mirred(struct mlx5_core_dev *mdev, struct net_device *out_dev);
    17	bool mlx5_lag_mpesw_is_activated(struct mlx5_core_dev *dev);
    18	#if IS_ENABLED(CONFIG_MLX5_ESWITCH)
    19	void mlx5_lag_mpesw_init(struct mlx5_lag *ldev);
    20	void mlx5_lag_mpesw_cleanup(struct mlx5_lag *ldev);
    21	#else
  > 22	void mlx5_lag_mpesw_init(struct mlx5_lag *ldev) {}
  > 23	void mlx5_lag_mpesw_cleanup(struct mlx5_lag *ldev) {}
    24	#endif
    25	

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