Re: [PATCH 3/3] hwmon: (pmbus/tps25990): add initial support

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Hi Jerome,

kernel test robot noticed the following build errors:

[auto build test ERROR on d22bd451d5606411895ef55cb105277e4f4f6e54]

url:    https://github.com/intel-lab-lkp/linux/commits/Jerome-Brunet/dt-bindings-hwmon-pmbus-add-ti-tps25990-documentation/20240909-234152
base:   d22bd451d5606411895ef55cb105277e4f4f6e54
patch link:    https://lore.kernel.org/r/20240909-tps25990-v1-3-39b37e43e795%40baylibre.com
patch subject: [PATCH 3/3] hwmon: (pmbus/tps25990): add initial support
config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240910/202409101807.GjHADcvQ-lkp@xxxxxxxxx/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 05f5a91d00b02f4369f46d076411c700755ae041)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240910/202409101807.GjHADcvQ-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/202409101807.GjHADcvQ-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from drivers/hwmon/pmbus/tps25990.c:9:
   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:25:
   In file included from include/linux/kernel_stat.h:8:
   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:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         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/pmbus/tps25990.c:9:
   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:25:
   In file included from include/linux/kernel_stat.h:8:
   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:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         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/pmbus/tps25990.c:9:
   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:25:
   In file included from include/linux/kernel_stat.h:8:
   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:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   In file included from drivers/hwmon/pmbus/tps25990.c:9:
   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:2228:
   include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     514 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> drivers/hwmon/pmbus/tps25990.c:267:9: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     267 |                 ret = FIELD_GET(PK_MIN_AVG_AVG_CNT, ret);
         |                       ^
>> drivers/hwmon/pmbus/tps25990.c:337:11: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     337 |                                              FIELD_PREP(PK_MIN_AVG_AVG_CNT, value));
         |                                              ^
   7 warnings and 2 errors generated.


vim +/FIELD_GET +267 drivers/hwmon/pmbus/tps25990.c

   254	
   255	static int tps25990_read_word(struct i2c_client *client,
   256				      int page, int phase, int reg)
   257	{
   258		int ret, addr;
   259	
   260		addr = tps25990_get_addr(reg);
   261		if (addr < 0)
   262			return addr;
   263	
   264		switch (reg) {
   265		case PMBUS_VIRT_SAMPLES:
   266			ret = pmbus_read_byte_data(client, page, addr);
 > 267			ret = FIELD_GET(PK_MIN_AVG_AVG_CNT, ret);
   268			break;
   269	
   270		case PMBUS_IIN_OC_FAULT_LIMIT:
   271			ret = pmbus_read_byte_data(client, page, addr);
   272			break;
   273	
   274		default:
   275			ret = pmbus_read_word_data(client, page, -1, addr);
   276			break;
   277		}
   278	
   279		if (ret >= 0)
   280			ret = tps25990_read_adapt_value(reg, ret);
   281	
   282		return ret;
   283	}
   284	
   285	static int tps25990_write_adapt_value(int reg, int val)
   286	{
   287		switch (reg) {
   288		case PMBUS_VIN_UV_WARN_LIMIT:
   289		case PMBUS_VIN_UV_FAULT_LIMIT:
   290		case PMBUS_VIN_OV_WARN_LIMIT:
   291		case PMBUS_VOUT_UV_WARN_LIMIT:
   292		case PMBUS_IIN_OC_WARN_LIMIT:
   293		case PMBUS_OT_WARN_LIMIT:
   294		case PMBUS_OT_FAULT_LIMIT:
   295		case PMBUS_PIN_OP_WARN_LIMIT:
   296		case PMBUS_POWER_GOOD_OFF:
   297			val >>= TPS25990_8B_SHIFT;
   298			val = clamp(val, 0, 0xff);
   299			break;
   300	
   301		case PMBUS_VIN_OV_FAULT_LIMIT:
   302			val -= TPS25990_VIN_OVF_OFF;
   303			val = DIV_ROUND_CLOSEST(val * TPS25990_VIN_OVF_DIV, TPS25990_VIN_OVF_NUM);
   304			val = clamp_val(val, 0, 0xf);
   305			break;
   306	
   307		case PMBUS_IIN_OC_FAULT_LIMIT:
   308			val -= TPS25990_IIN_OCF_OFF;
   309			val = DIV_ROUND_CLOSEST(val * TPS25990_IIN_OCF_DIV, TPS25990_IIN_OCF_NUM);
   310			val = clamp_val(val, 0, 0x3f);
   311			break;
   312	
   313		case PMBUS_VIRT_SAMPLES:
   314			val = clamp_val(val, 1, 1 << PK_MIN_AVG_AVG_CNT);
   315			val = ilog2(val);
   316			break;
   317		}
   318	
   319		return val;
   320	}
   321	
   322	static int tps25990_write_word(struct i2c_client *client,
   323				       int page, int reg, u16 value)
   324	{
   325		int addr, ret;
   326	
   327		addr = tps25990_get_addr(reg);
   328		if (addr < 0)
   329			return addr;
   330	
   331		value = tps25990_write_adapt_value(reg, value);
   332	
   333		switch (reg) {
   334		case PMBUS_VIRT_SAMPLES:
   335			ret = pmbus_update_byte_data(client, page, addr,
   336						     PK_MIN_AVG_AVG_CNT,
 > 337						     FIELD_PREP(PK_MIN_AVG_AVG_CNT, value));
   338			break;
   339	
   340		case PMBUS_IIN_OC_FAULT_LIMIT:
   341			ret = pmbus_write_byte_data(client, page, addr,
   342						    value);
   343			break;
   344	
   345		default:
   346			ret = pmbus_write_word_data(client, page, addr, value);
   347			break;
   348		}
   349	
   350		return ret;
   351	}
   352	

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




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