Re: [PATCH net-next v16 13/13] ax88796b: Add support for AX88772D, AX88179A and AX88279

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

Hi Birger,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 071876fd50482a68603a9460d80dd6dd58827ee1]

url:    https://github.com/intel-lab-lkp/linux/commits/Birger-Koblitz/phylink-Add-phylink_mac_interrupt/20261004-073905
base:   071876fd50482a68603a9460d80dd6dd58827ee1
patch link:    https://lore.kernel.org/r/20261004-ax88179a-v16-13-2a9ae4e68f7b%40birger-koblitz.de
patch subject: [PATCH net-next v16 13/13] ax88796b: Add support for AX88772D, AX88179A and AX88279
config: m68k-defconfig (https://download.01.org/0day-ci/archive/20261004/202610042301.MlmvbRpS-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261004/202610042301.MlmvbRpS-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/202610042301.MlmvbRpS-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/kasan-checks.h:5,
                    from include/asm-generic/rwonce.h:26,
                    from ./arch/m68k/include/generated/asm/rwonce.h:1,
                    from include/linux/compiler.h:369,
                    from include/linux/array_size.h:5,
                    from include/linux/kernel.h:16,
                    from drivers/net/phy/ax88796b.c:6:
   drivers/net/phy/ax88796b.c: In function 'asix_ax88772D_get_features':
>> drivers/net/phy/ax88796b.c:217:42: warning: unused variable 'mask' [-Wunused-variable]
     217 |         __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = {};
         |                                          ^~~~
   include/linux/types.h:10:23: note: in definition of macro 'DECLARE_BITMAP'
      10 |         unsigned long name[BITS_TO_LONGS(bits)]
         |                       ^~~~
   drivers/net/phy/ax88796b.c:217:9: note: in expansion of macro '__ETHTOOL_DECLARE_LINK_MODE_MASK'
     217 |         __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = {};
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/mask +217 drivers/net/phy/ax88796b.c

   213	
   214	static int asix_ax88772D_get_features(struct phy_device *phydev)
   215	{
   216		int ret;
 > 217		__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = {};
   218	
   219		/* MDIO_DEVS1/2 empty, so set mmds_present bits to allow reading abilities */
   220		phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
   221	
   222		ret = genphy_read_abilities(phydev);
   223		if (ret < 0)
   224			return ret;
   225	
   226		/* AX88772D does not support reported 1000baseT mode */
   227		linkmode_clear_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, phydev->supported);
   228	
   229		return 0;
   230	}
   231	

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