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, ®); | ^ >> 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, ®); | ~~~~~~~~~ ^ 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, ®); | ^ 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, ®); 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
