Re: [PATCH net-next 2/2] net: phy: dp83822: Add support for changing the transmit amplitude voltage

[kernel test robot]

Hi Dimitri,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 7d0da8f862340c5f42f0062b8560b8d0971a6ac4]

url:    https://github.com/intel-lab-lkp/linux/commits/Dimitri-Fedrau-via-B4-Relay/dt-bindings-net-dp83822-Add-support-for-changing-the-transmit-amplitude-voltage/20250113-134317
base:   7d0da8f862340c5f42f0062b8560b8d0971a6ac4
patch link:    https://lore.kernel.org/r/20250113-dp83822-tx-swing-v1-2-7ed5a9d80010%40liebherr.com
patch subject: [PATCH net-next 2/2] net: phy: dp83822: Add support for changing the transmit amplitude voltage
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20250116/202501160621.sg88rASV-lkp@xxxxxxxxx/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250116/202501160621.sg88rASV-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501160621.sg88rASV-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from drivers/net/phy/dp83822.c:7:
   In file included from include/linux/ethtool.h:18:
   In file included from include/linux/if_ether.h:19:
   In file included from include/linux/skbuff.h:17:
   In file included from include/linux/bvec.h:10:
   In file included from include/linux/highmem.h:10:
   In file included from include/linux/mm.h:2224:
   include/linux/vmstat.h:504:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     504 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     505 |                            item];
         |                            ~~~~
   include/linux/vmstat.h:511:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     511 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     512 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
   include/linux/vmstat.h:524:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
     524 |         return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~ ^
     525 |                            NR_VM_NUMA_EVENT_ITEMS +
         |                            ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/phy/dp83822.c:207:18: warning: unused variable 'tx_amplitude_100base_tx' [-Wunused-const-variable]
     207 | static const u32 tx_amplitude_100base_tx[] = {
         |                  ^~~~~~~~~~~~~~~~~~~~~~~
   4 warnings generated.


vim +/tx_amplitude_100base_tx +207 drivers/net/phy/dp83822.c

   206	
 > 207	static const u32 tx_amplitude_100base_tx[] = {
   208		1600, 1633, 1667, 1700, 1733, 1767, 1800, 1833,
   209		1867, 1900, 1933, 1967, 2000, 2033, 2067, 2100,
   210	};
   211	

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