Hi Khalil, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b7cbaf59f62f8ab8f157698f9e31642bff525bd0 commit: b5b5b32081cd206baa6e58cca7f112d9723785d6 i2c: mlxbf: I2C SMBus driver for Mellanox BlueField SoC date: 5 weeks ago config: arm64-randconfig-r011-20201103 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 1fcd5d5655e29f85e12b402e32974f207cfedf32) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b5b5b32081cd206baa6e58cca7f112d9723785d6 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b5b5b32081cd206baa6e58cca7f112d9723785d6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): >> drivers/i2c/busses/i2c-mlxbf.c:2296:8: error: implicit declaration of >> function 'acpi_device_uid' [-Werror,-Wimplicit-function-declaration] uid = acpi_device_uid(adev); ^ drivers/i2c/busses/i2c-mlxbf.c:2296:8: note: did you mean 'cpu_device_up'? include/linux/cpu.h:93:5: note: 'cpu_device_up' declared here int cpu_device_up(struct device *dev); ^ drivers/i2c/busses/i2c-mlxbf.c:2296:6: warning: incompatible integer to pointer conversion assigning to 'const char *' from 'int' [-Wint-conversion] uid = acpi_device_uid(adev); ^ ~~~~~~~~~~~~~~~~~~~~~ 1 warning and 1 error generated. vim +/acpi_device_uid +2296 drivers/i2c/busses/i2c-mlxbf.c 2274 2275 static int mlxbf_i2c_acpi_probe(struct device *dev, struct mlxbf_i2c_priv *priv) 2276 { 2277 const struct acpi_device_id *aid; 2278 struct acpi_device *adev; 2279 unsigned long bus_id = 0; 2280 const char *uid; 2281 int ret; 2282 2283 if (acpi_disabled) 2284 return -ENOENT; 2285 2286 adev = ACPI_COMPANION(dev); 2287 if (!adev) 2288 return -ENXIO; 2289 2290 aid = acpi_match_device(mlxbf_i2c_acpi_ids, dev); 2291 if (!aid) 2292 return -ENODEV; 2293 2294 priv->chip = (struct mlxbf_i2c_chip_info *)aid->driver_data; 2295 > 2296 uid = acpi_device_uid(adev); 2297 if (!uid || !(*uid)) { 2298 dev_err(dev, "Cannot retrieve UID\n"); 2299 return -ENODEV; 2300 } 2301 2302 ret = kstrtoul(uid, 0, &bus_id); 2303 if (!ret) 2304 priv->bus = bus_id; 2305 2306 return ret; 2307 } 2308 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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