Hi Akhil, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on vkoul-dmaengine/next arm64/for-next/core v5.16-rc2 next-20211123] [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/Akhil-R/Add-NVIDIA-Tegra-GPC-DMA-driver/20211122-173019 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: riscv-randconfig-c006-20211123 (https://download.01.org/0day-ci/archive/20211124/202111240616.WWuSKq38-lkp@xxxxxxxxx/config.gz) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c133fb321f7ca6083ce15b6aa5bf89de6600e649) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/0day-ci/linux/commit/7707da9f914433ccc5718dd3431153d3b5bf485d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Akhil-R/Add-NVIDIA-Tegra-GPC-DMA-driver/20211122-173019 git checkout 7707da9f914433ccc5718dd3431153d3b5bf485d # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/dma/tegra186-gpc-dma.c:1264:21: warning: attribute declaration must precede definition [-Wignored-attributes] static const struct __maybe_unused dev_pm_ops tegra_dma_dev_pm_ops = { ^ include/linux/compiler_attributes.h:286:56: note: expanded from macro '__maybe_unused' #define __maybe_unused __attribute__((__unused__)) ^ include/linux/pm.h:277:8: note: previous definition is here struct dev_pm_ops { ^ 1 warning generated. vim +1264 drivers/dma/tegra186-gpc-dma.c 1263 > 1264 static const struct __maybe_unused dev_pm_ops tegra_dma_dev_pm_ops = { 1265 SET_LATE_SYSTEM_SLEEP_PM_OPS(tegra_dma_pm_suspend, tegra_dma_pm_resume) 1266 }; 1267 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx