Hi Cosmin, I love your patch! Yet something to improve: [auto build test ERROR on jic23-iio/togreg] [also build test ERROR on linus/master v6.1-rc4 next-20221107] [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/Cosmin-Tanislav/AD74115/20221103-174734 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg patch link: https://lore.kernel.org/r/20221103094436.2136698-3-demonsingur%40gmail.com patch subject: [PATCH v2 2/2] iio: addac: add AD74115 driver config: arm-randconfig-c002-20221106 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 2bbafe04fe785a9469bea5a3737f8d7d3ce4aca2) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/intel-lab-lkp/linux/commit/645566fcbcd39a1b546e8223d4af13fe902df3fc git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Cosmin-Tanislav/AD74115/20221103-174734 git checkout 645566fcbcd39a1b546e8223d4af13fe902df3fc # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/iio/addac/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/iio/addac/ad74115.c:28:12: error: static declaration of 'iio_device_id' follows non-static declaration static int iio_device_id(struct iio_dev *indio_dev) ^ include/linux/iio/iio.h:598:5: note: previous declaration is here int iio_device_id(struct iio_dev *indio_dev); ^ >> drivers/iio/addac/ad74115.c:30:20: error: no member named 'id' in 'struct iio_dev' return indio_dev->id; ~~~~~~~~~ ^ drivers/iio/addac/ad74115.c:1828:8: error: call to undeclared function 'devm_regulator_bulk_get_enable'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(regulator_names), ^ drivers/iio/addac/ad74115.c:1828:8: note: did you mean 'devm_regulator_bulk_get_const'? include/linux/regulator/consumer.h:247:18: note: 'devm_regulator_bulk_get_const' declared here int __must_check devm_regulator_bulk_get_const( ^ 3 errors generated. vim +30 drivers/iio/addac/ad74115.c 26 27 /* 5.10 compatibility */ > 28 static int iio_device_id(struct iio_dev *indio_dev) 29 { > 30 return indio_dev->id; 31 } 32 -- 0-DAY CI Kernel Test Service https://01.org/lkp