Re: [PATCH net-next v2 2/4] amd-xgbe: add ethtool phy selftest

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

Hi Raju,

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/Raju-Rangoju/amd-xgbe-introduce-support-ethtool-selftest/20251017-151230
base:   net-next/main
patch link:    https://lore.kernel.org/r/20251017064704.3911798-3-Raju.Rangoju%40amd.com
patch subject: [PATCH net-next v2 2/4] amd-xgbe: add ethtool phy selftest
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20251018/202510181124.5LDfdemg-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251018/202510181124.5LDfdemg-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/202510181124.5LDfdemg-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/amd/xgbe/xgbe-selftest.c: In function 'xgbe_selftest_get_strings':
>> drivers/net/ethernet/amd/xgbe/xgbe-selftest.c:427:52: warning: '%s' directive output may be truncated writing up to 95 bytes into a region of size 28 [-Wformat-truncation=]
     427 |                 snprintf(p, ETH_GSTRING_LEN, "%2d. %s", i + 1,
         |                                                    ^~
   drivers/net/ethernet/amd/xgbe/xgbe-selftest.c:427:17: note: 'snprintf' output between 5 and 100 bytes into a destination of size 32
     427 |                 snprintf(p, ETH_GSTRING_LEN, "%2d. %s", i + 1,
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     428 |                          xgbe_selftests[i].name);
         |                          ~~~~~~~~~~~~~~~~~~~~~~~


vim +427 drivers/net/ethernet/amd/xgbe/xgbe-selftest.c

066e40696db52b Raju Rangoju 2025-10-17  420  
066e40696db52b Raju Rangoju 2025-10-17  421  void xgbe_selftest_get_strings(struct xgbe_prv_data *pdata, u8 *data)
066e40696db52b Raju Rangoju 2025-10-17  422  {
066e40696db52b Raju Rangoju 2025-10-17  423  	u8 *p = data;
066e40696db52b Raju Rangoju 2025-10-17  424  	int i;
066e40696db52b Raju Rangoju 2025-10-17  425  
066e40696db52b Raju Rangoju 2025-10-17  426  	for (i = 0; i < xgbe_selftest_get_count(pdata); i++) {
066e40696db52b Raju Rangoju 2025-10-17 @427  		snprintf(p, ETH_GSTRING_LEN, "%2d. %s", i + 1,
066e40696db52b Raju Rangoju 2025-10-17  428  			 xgbe_selftests[i].name);
066e40696db52b Raju Rangoju 2025-10-17  429  		p += ETH_GSTRING_LEN;
066e40696db52b Raju Rangoju 2025-10-17  430  	}
066e40696db52b Raju Rangoju 2025-10-17  431  }
066e40696db52b Raju Rangoju 2025-10-17  432  

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