[frank-w-bpi-r2-4.14:6.6-r3mini 25/34] drivers/net/phy/air_en8811h.c:792:5: warning: no previous prototype for function 'en8811h_phy_modify_mmd_changed'

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

tree:   https://github.com/frank-w/BPI-R2-4.14 6.6-r3mini
head:   7a4da3bc9c1a2302ba8c22503865d1bbc0cdce1d
commit: d2b5b3c2c84adce7c4a2458bdd2b3a641b155cd0 [25/34] Add the Airoha EN8811H PHY driver
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20231205/202312051845.2S2wmbPy-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231205/202312051845.2S2wmbPy-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/202312051845.2S2wmbPy-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/net/phy/air_en8811h.c:792:5: warning: no previous prototype for function 'en8811h_phy_modify_mmd_changed' [-Wmissing-prototypes]
   int en8811h_phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
       ^
   drivers/net/phy/air_en8811h.c:792:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int en8811h_phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
   ^
   static 
   drivers/net/phy/air_en8811h.c:920:12: warning: no previous prototype for function 'en8811h_phy_driver_register' [-Wmissing-prototypes]
   int __init en8811h_phy_driver_register(void)
              ^
   drivers/net/phy/air_en8811h.c:920:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __init en8811h_phy_driver_register(void)
   ^
   static 
   drivers/net/phy/air_en8811h.c:931:13: warning: no previous prototype for function 'en8811h_phy_driver_unregister' [-Wmissing-prototypes]
   void __exit en8811h_phy_driver_unregister(void)
               ^
   drivers/net/phy/air_en8811h.c:931:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __exit en8811h_phy_driver_unregister(void)
   ^
   static 
   3 warnings generated.


vim +/en8811h_phy_modify_mmd_changed +792 drivers/net/phy/air_en8811h.c

   791	
 > 792	int en8811h_phy_modify_mmd_changed(struct phy_device *phydev, int devad, u32 regnum,
   793				     u16 mask, u16 set)
   794	{
   795		int new, ret;
   796	
   797		ret = air_mii_cl45_read(phydev, devad, regnum);
   798		if (ret < 0)
   799			return ret;
   800	
   801		new = (ret & ~mask) | set;
   802		if (new == ret)
   803			return 0;
   804	
   805		ret = air_mii_cl45_write(phydev, devad, regnum, new);
   806	
   807		return ret < 0 ? ret : 1;
   808	}
   809	

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