Re: [PATCH net-next] net: phy: dp83822: Add support for PHY LEDs on DP83822

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

Hi Dimitri,

kernel test robot noticed the following build warnings:

[auto build test WARNING on a14a429069bb1a18eb9fe63d68fcaa77dffe0e23]

url:    https://github.com/intel-lab-lkp/linux/commits/Dimitri-Fedrau/net-phy-dp83822-Add-support-for-PHY-LEDs-on-DP83822/20241217-172305
base:   a14a429069bb1a18eb9fe63d68fcaa77dffe0e23
patch link:    https://lore.kernel.org/r/20241217-dp83822-leds-v1-1-800b24461013%40gmail.com
patch subject: [PATCH net-next] net: phy: dp83822: Add support for PHY LEDs on DP83822
config: x86_64-buildonly-randconfig-002-20241218 (https://download.01.org/0day-ci/archive/20241218/202412181638.7XsHSwtp-lkp@intel.com/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/20241218/202412181638.7XsHSwtp-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/202412181638.7XsHSwtp-lkp@intel.com/

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:8:
   In file included from include/linux/cacheflush.h:5:
   In file included from arch/x86/include/asm/cacheflush.h:5:
   In file included from include/linux/mm.h:2223:
   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:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   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:1029:39: warning: use of logical '||' with constant operand [-Wconstant-logical-operand]
    1029 |         if (index == DP83822_LED_INDEX_LED_0 || DP83822_LED_INDEX_COL_GPIO2) {
         |                                              ^  ~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/net/phy/dp83822.c:1029:39: note: use '|' for a bitwise operation
    1029 |         if (index == DP83822_LED_INDEX_LED_0 || DP83822_LED_INDEX_COL_GPIO2) {
         |                                              ^~
         |                                              |
   5 warnings generated.


vim +1029 drivers/net/phy/dp83822.c

  1023	
  1024	static int dp83822_led_hw_control_get(struct phy_device *phydev, u8 index,
  1025					      unsigned long *rules)
  1026	{
  1027		int val;
  1028	
> 1029		if (index == DP83822_LED_INDEX_LED_0 || DP83822_LED_INDEX_COL_GPIO2) {
  1030			val = phy_read_mmd(phydev, MDIO_MMD_VEND2, MII_DP83822_MLEDCR);
  1031			if (val < 0)
  1032				return val;
  1033	
  1034			val = FIELD_GET(DP83822_MLEDCR_CFG, val);
  1035		} else {
  1036			val = phy_read_mmd(phydev, MDIO_MMD_VEND2, MII_DP83822_LEDCFG1);
  1037			if (val < 0)
  1038				return val;
  1039	
  1040			if (index == DP83822_LED_INDEX_LED_1_GPIO1)
  1041				val = FIELD_GET(DP83822_LEDCFG1_LED1_CTRL, val);
  1042			else
  1043				val = FIELD_GET(DP83822_LEDCFG1_LED3_CTRL, val);
  1044		}
  1045	
  1046		switch (val) {
  1047		case DP83822_LED_FN_LINK:
  1048			*rules = BIT(TRIGGER_NETDEV_LINK);
  1049			break;
  1050		case DP83822_LED_FN_LINK_10_BT:
  1051			*rules = BIT(TRIGGER_NETDEV_LINK_10);
  1052			break;
  1053		case DP83822_LED_FN_LINK_100_BTX:
  1054			*rules = BIT(TRIGGER_NETDEV_LINK_100);
  1055			break;
  1056		case DP83822_LED_FN_FULL_DUPLEX:
  1057			*rules = BIT(TRIGGER_NETDEV_FULL_DUPLEX);
  1058			break;
  1059		case DP83822_LED_FN_TX:
  1060			*rules = BIT(TRIGGER_NETDEV_TX);
  1061			break;
  1062		case DP83822_LED_FN_RX:
  1063			*rules = BIT(TRIGGER_NETDEV_RX);
  1064			break;
  1065		case DP83822_LED_FN_RX_TX:
  1066			*rules = BIT(TRIGGER_NETDEV_TX) | BIT(TRIGGER_NETDEV_RX);
  1067			break;
  1068		case DP83822_LED_FN_RX_TX_ERR:
  1069			*rules = BIT(TRIGGER_NETDEV_TX_ERR) | BIT(TRIGGER_NETDEV_RX_ERR);
  1070			break;
  1071		case DP83822_LED_FN_LINK_RX_TX:
  1072			*rules = BIT(TRIGGER_NETDEV_LINK) | BIT(TRIGGER_NETDEV_TX) |
  1073				 BIT(TRIGGER_NETDEV_RX);
  1074			break;
  1075		default:
  1076			*rules = 0;
  1077			break;
  1078		}
  1079	
  1080		return 0;
  1081	}
  1082	

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