Re: [PATCH v5] drivers: hwmon: max31827: Add PEC support

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Hi Radu,

kernel test robot noticed the following build errors:

[auto build test ERROR on groeck-staging/hwmon-next]
[also build test ERROR on linus/master v6.10-rc1 next-20240529]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Radu-Sabau/drivers-hwmon-max31827-Add-PEC-support/20240530-192727
base:   https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git hwmon-next
patch link:    https://lore.kernel.org/r/20240530112505.14831-1-radu.sabau%40analog.com
patch subject: [PATCH v5] drivers: hwmon: max31827: Add PEC support
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240531/202405311134.f2ALUwLL-lkp@xxxxxxxxx/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project bafda89a0944d947fc4b3b5663185e07a397ac30)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240531/202405311134.f2ALUwLL-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/202405311134.f2ALUwLL-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from drivers/hwmon/max31827.c:12:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:9:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     547 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     560 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from drivers/hwmon/max31827.c:12:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:9:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     573 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from drivers/hwmon/max31827.c:12:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:13:
   In file included from include/linux/cgroup.h:26:
   In file included from include/linux/kernel_stat.h:9:
   In file included from include/linux/interrupt.h:11:
   In file included from include/linux/hardirq.h:11:
   In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
   In file included from include/asm-generic/hardirq.h:17:
   In file included from include/linux/irq.h:20:
   In file included from include/linux/io.h:13:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     584 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     594 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     604 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   In file included from drivers/hwmon/max31827.c:12:
   In file included from include/linux/i2c.h:19:
   In file included from include/linux/regulator/consumer.h:35:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:21:
   In file included from include/linux/mm.h:2208:
   include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     522 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/hwmon/max31827.c:336:32: error: declaration of anonymous struct must be a definition
     336 | static int max31827_chip_write(struct *regmap, u32 attr, long val)
         |                                ^
>> drivers/hwmon/max31827.c:339:7: error: use of undeclared identifier 'hwmon_chip_pec'; did you mean 'hwmon_chip'?
     339 |         case hwmon_chip_pec:
         |              ^~~~~~~~~~~~~~
         |              hwmon_chip
   include/linux/hwmon.h:21:2: note: 'hwmon_chip' declared here
      21 |         hwmon_chip,
         |         ^
>> drivers/hwmon/max31827.c:340:29: error: use of undeclared identifier 'regmap'
     340 |                 return regmap_update_bits(regmap, MAX31827_CONFIGURATION_REG,
         |                                           ^
>> drivers/hwmon/max31827.c:341:8: error: use of undeclared identifier 'MAX38127_CONFIGURATION_PEC_EN_MASK'
     341 |                                           MAX38127_CONFIGURATION_PEC_EN_MASK,
         |                                           ^
   drivers/hwmon/max31827.c:342:14: error: use of undeclared identifier 'MAX38127_CONFIGURATION_PEC_EN_MASK'
     342 |                                           val ? MAX38127_CONFIGURATION_PEC_EN_MASK : 0);
         |                                                 ^
>> drivers/hwmon/max31827.c:357:48: error: too many arguments to function call, expected 2, have 3
     357 |                 return max31827_chip_write(st->regmap, attr, val);
         |                        ~~~~~~~~~~~~~~~~~~~                   ^~~
   drivers/hwmon/max31827.c:336:12: note: 'max31827_chip_write' declared here
     336 | static int max31827_chip_write(struct *regmap, u32 attr, long val)
         |            ^                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/hwmon/max31827.c:399:7: error: duplicate case value 'hwmon_chip'
     399 |         case hwmon_chip:
         |              ^
   drivers/hwmon/max31827.c:356:7: note: previous case defined here
     356 |         case hwmon_chip:
         |              ^
>> drivers/hwmon/max31827.c:601:53: error: use of undeclared identifier 'HWMON_C_PEC'
     601 |         HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL | HWMON_C_PEC),
         |                                                            ^
   7 warnings and 8 errors generated.


vim +336 drivers/hwmon/max31827.c

   335	
 > 336	static int max31827_chip_write(struct *regmap, u32 attr, long val)
   337	{
   338		switch (attr) {
 > 339		case hwmon_chip_pec:
 > 340			return regmap_update_bits(regmap, MAX31827_CONFIGURATION_REG,
 > 341						  MAX38127_CONFIGURATION_PEC_EN_MASK,
 > 342						  val ? MAX38127_CONFIGURATION_PEC_EN_MASK : 0);
   343		default:
   344			return -EOPNOTSUPP;
   345		}
   346	}
   347	
   348	static int max31827_write(struct device *dev, enum hwmon_sensor_types type,
   349				  u32 attr, int channel, long val)
   350	{
   351		struct max31827_state *st = dev_get_drvdata(dev);
   352		int res = 1;
   353		int ret;
   354	
   355		switch (type) {
   356		case hwmon_chip:
 > 357			return max31827_chip_write(st->regmap, attr, val);
   358		case hwmon_temp:
   359			switch (attr) {
   360			case hwmon_temp_enable:
   361				if (val >> 1)
   362					return -EINVAL;
   363	
   364				mutex_lock(&st->lock);
   365				/**
   366				 * The chip should not be enabled while a conversion is
   367				 * performed. Neither should the chip be enabled when
   368				 * the alarm values are changed.
   369				 */
   370	
   371				st->enable = val;
   372	
   373				ret = regmap_update_bits(st->regmap,
   374							 MAX31827_CONFIGURATION_REG,
   375							 MAX31827_CONFIGURATION_1SHOT_MASK |
   376							 MAX31827_CONFIGURATION_CNV_RATE_MASK,
   377							 MAX31827_DEVICE_ENABLE(val));
   378	
   379				mutex_unlock(&st->lock);
   380	
   381				return ret;
   382	
   383			case hwmon_temp_max:
   384				return write_alarm_val(st, MAX31827_TH_REG, val);
   385	
   386			case hwmon_temp_max_hyst:
   387				return write_alarm_val(st, MAX31827_TH_HYST_REG, val);
   388	
   389			case hwmon_temp_min:
   390				return write_alarm_val(st, MAX31827_TL_REG, val);
   391	
   392			case hwmon_temp_min_hyst:
   393				return write_alarm_val(st, MAX31827_TL_HYST_REG, val);
   394	
   395			default:
   396				return -EOPNOTSUPP;
   397			}
   398	
 > 399		case hwmon_chip:
   400			if (attr == hwmon_chip_update_interval) {
   401				if (!st->enable)
   402					return -EINVAL;
   403	
   404				/*
   405				 * Convert the desired conversion rate into register
   406				 * bits. res is already initialized with 1.
   407				 *
   408				 * This was inspired by lm73 driver.
   409				 */
   410				while (res < ARRAY_SIZE(max31827_conversions) &&
   411				       val < max31827_conversions[res])
   412					res++;
   413	
   414				if (res == ARRAY_SIZE(max31827_conversions))
   415					res = ARRAY_SIZE(max31827_conversions) - 1;
   416	
   417				res = FIELD_PREP(MAX31827_CONFIGURATION_CNV_RATE_MASK,
   418						 res);
   419	
   420				ret = regmap_update_bits(st->regmap,
   421							 MAX31827_CONFIGURATION_REG,
   422							 MAX31827_CONFIGURATION_CNV_RATE_MASK,
   423							 res);
   424				if (ret)
   425					return ret;
   426	
   427				st->update_interval = val;
   428			}
   429			break;
   430	
   431		default:
   432			return -EOPNOTSUPP;
   433		}
   434	
   435		return 0;
   436	}
   437	

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




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