Hi Pratyush, I love your patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v5.16 next-20220121] [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] url: https://github.com/0day-ci/linux/commits/Pratyush-Yadav/Rx-mode-support-f... base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20220122/202201220002.AYMD2qX0-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7b3d30728816403d1fd73cc5082e9fb761262bce) 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://github.com/0day-ci/linux/commit/a27020695f773ffff7f462e53f7ff7ca3... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Pratyush-Yadav/Rx-mode-support-for-Cadence-DPHY/20220121-174104 git checkout a27020695f773ffff7f462e53f7ff7ca39109cd0 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/gpu/drm/meson/ drivers/phy/cadence/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): dev_err(dev, "Failed to create PHY: %d\n", PTR_ERR(dphy->phy)); ~~ ^~~~~~~~~~~~~~~~~~ %ld include/linux/dev_printk.h:144:65: note: expanded from macro 'dev_err' dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' _p_func(dev, fmt, ##__VA_ARGS__); \ ~~~ ^~~~~~~~~~~ drivers/phy/cadence/cdns-dphy-rx.c:231:4: warning: format specifies type 'int' but the argument has type 'long' [-Wformat] PTR_ERR(provider)); ^~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:144:65: note: expanded from macro 'dev_err' dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap' _p_func(dev, fmt, ##__VA_ARGS__); \ ~~~ ^~~~~~~~~~~ 2 warnings generated. vim +223 drivers/phy/cadence/cdns-dphy-rx.c 203 204 static int cdns_dphy_rx_probe(struct platform_device *pdev) 205 { 206 struct device *dev = &pdev->dev; 207 struct phy_provider *provider; 208 struct cdns_dphy_rx *dphy; 209 210 dphy = devm_kzalloc(dev, sizeof(*dphy), GFP_KERNEL); 211 if (!dphy) 212 return -ENOMEM; 213 214 dev_set_drvdata(dev, dphy); 215 dphy->dev = dev; 216 217 dphy->regs = devm_platform_ioremap_resource(pdev, 0); 218 if (IS_ERR(dphy->regs)) 219 return PTR_ERR(dphy->regs); 220 221 dphy->phy = devm_phy_create(dev, NULL, &cdns_dphy_rx_ops); 222 if (IS_ERR(dphy->phy)) { 224 return PTR_ERR(dphy->phy); 225 } 226 227 phy_set_drvdata(dphy->phy, dphy); 228 provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); 229 if (IS_ERR(provider)) { 230 dev_err(dev, "Failed to register PHY provider: %d\n", 231 PTR_ERR(provider)); 232 return PTR_ERR(provider); 233 } 234 235 return 0; 236 } 237 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org