Hi Anshuman, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on soc/for-next rafael-pm/linux-next linus/master v6.3-rc2 next-20230317] [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/Anshuman-Khandual/coresight-etm4x-Allocate-and-device-assign-struct-etmv4_drvdata-earlier/20230317-110755 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20230317030501.1811905-5-anshuman.khandual%40arm.com patch subject: [PATCH 4/7] coresight: etm4x: Change etm4_platform_driver driver for MMIO devices config: arm64-buildonly-randconfig-r002-20230312 (https://download.01.org/0day-ci/archive/20230318/202303181800.KxbuwjRT-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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/intel-lab-lkp/linux/commit/f02ad9e7f97ab4fc1f90c7e6399004e9ec89ef26 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Anshuman-Khandual/coresight-etm4x-Allocate-and-device-assign-struct-etmv4_drvdata-earlier/20230317-110755 git checkout f02ad9e7f97ab4fc1f90c7e6399004e9ec89ef26 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/hwtracing/coresight/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303181800.KxbuwjRT-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/hwtracing/coresight/coresight-etm4x-core.c:2336:32: warning: unused variable 'etm4_dev_pm_ops' [-Wunused-const-variable] static const struct dev_pm_ops etm4_dev_pm_ops = { ^ 1 warning generated. vim +/etm4_dev_pm_ops +2336 drivers/hwtracing/coresight/coresight-etm4x-core.c 2335 > 2336 static const struct dev_pm_ops etm4_dev_pm_ops = { 2337 SET_RUNTIME_PM_OPS(etm4_runtime_suspend, etm4_runtime_resume, NULL) 2338 }; 2339 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
