Re: [PATCH v2 2/2] iio: dac: support the ad8460 Waveform DAC

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Hi Mariel,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 9900e7a54764998ba3a22f06ec629f7b5fe0b422]

url:    https://github.com/intel-lab-lkp/linux/commits/Mariel-Tinaco/dt-bindings-iio-dac-add-docs-for-ad8460/20240730-112724
base:   9900e7a54764998ba3a22f06ec629f7b5fe0b422
patch link:    https://lore.kernel.org/r/20240730030509.57834-3-Mariel.Tinaco%40analog.com
patch subject: [PATCH v2 2/2] iio: dac: support the ad8460 Waveform DAC
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240802/202408021509.ug75TMoS-lkp@xxxxxxxxx/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240802/202408021509.ug75TMoS-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/202408021509.ug75TMoS-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   drivers/iio/dac/ad8460.c:159:8: error: call to undeclared function 'ad8460_get_hvdac_word'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     159 |         ret = ad8460_get_hvdac_word(state, private, &reg);
         |               ^
>> drivers/iio/dac/ad8460.c:163:34: warning: format specifies type 'long' but the argument has type 'unsigned int' [-Wformat]
     163 |         return sysfs_emit(buf, "%ld\n", reg);
         |                                 ~~~     ^~~
         |                                 %u
   drivers/iio/dac/ad8460.c:176:27: error: too few arguments to function call, expected 3, have 2
     176 |         ret = kstrtou32(buf, &reg);
         |               ~~~~~~~~~          ^
   include/linux/kstrtox.h:84:32: note: 'kstrtou32' declared here
      84 | static inline int __must_check kstrtou32(const char *s, unsigned int base, u32 *res)
         |                                ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iio/dac/ad8460.c:182:9: error: call to undeclared function 'ad8460_set_hvdac_word'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     182 |         return ad8460_set_hvdac_word(state, private, reg);
         |                ^
   drivers/iio/dac/ad8460.c:211:27: error: too few arguments to function call, expected 3, have 2
     211 |         ret = kstrtou16(buf, &sym);
         |               ~~~~~~~~~          ^
   include/linux/kstrtox.h:94:18: note: 'kstrtou16' declared here
      94 | int __must_check kstrtou16(const char *s, unsigned int base, u16 *res);
         |                  ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iio/dac/ad8460.c:249:33: error: too few arguments to function call, expected 3, have 2
     249 |         ret = kstrtou16(buf, &toggle_en);
         |               ~~~~~~~~~                ^
   include/linux/kstrtox.h:94:18: note: 'kstrtou16' declared here
      94 | int __must_check kstrtou16(const char *s, unsigned int base, u16 *res);
         |                  ^         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iio/dac/ad8460.c:335:12: error: static declaration of 'ad8460_get_hvdac_word' follows non-static declaration
     335 | static int ad8460_get_hvdac_word(struct ad8460_state *state,
         |            ^
   drivers/iio/dac/ad8460.c:159:8: note: previous implicit declaration is here
     159 |         ret = ad8460_get_hvdac_word(state, private, &reg);
         |               ^
   drivers/iio/dac/ad8460.c:346:9: error: call to undeclared function 'get_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     346 |         *val = get_unaligned_le16(state->spi_tx_buf);
         |                ^
   drivers/iio/dac/ad8460.c:351:12: error: static declaration of 'ad8460_set_hvdac_word' follows non-static declaration
     351 | static int ad8460_set_hvdac_word(struct ad8460_state *state,
         |            ^
   drivers/iio/dac/ad8460.c:182:9: note: previous implicit declaration is here
     182 |         return ad8460_set_hvdac_word(state, private, reg);
         |                ^
   drivers/iio/dac/ad8460.c:355:2: error: call to undeclared function 'put_unaligned_le16'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     355 |         put_unaligned_le16(val & 0x3FFF, &state->spi_tx_buf);
         |         ^
   drivers/iio/dac/ad8460.c:855:8: error: call to undeclared function 'devm_regulator_get_enable_read_voltage'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     855 |         ret = devm_regulator_get_enable_read_voltage(&spi->dev, "refio_1p2v");
         |               ^
   drivers/iio/dac/ad8460.c:855:8: note: did you mean 'devm_regulator_get_enable_optional'?
   include/linux/regulator/consumer.h:166:5: note: 'devm_regulator_get_enable_optional' declared here
     166 | int devm_regulator_get_enable_optional(struct device *dev, const char *id);
         |     ^
   drivers/iio/dac/ad8460.c:859:43: error: use of undeclared identifier 'vrefio'
     859 |                 return dev_err_probe(&spi->dev, PTR_ERR(vrefio),
         |                                                         ^
   1 warning and 11 errors generated.


vim +163 drivers/iio/dac/ad8460.c

   149	
   150	static ssize_t ad8460_dac_input_read(struct iio_dev *indio_dev,
   151					     uintptr_t private,
   152					     const struct iio_chan_spec *chan,
   153					     char *buf)
   154	{
   155		struct ad8460_state *state = iio_priv(indio_dev);
   156		unsigned int reg;
   157		int ret;
   158	
   159		ret = ad8460_get_hvdac_word(state, private, &reg);
   160		if (ret)
   161			return ret;
   162	
 > 163		return sysfs_emit(buf, "%ld\n", reg);
   164	}
   165	

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




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