Re: [PATCH 4/7] coresight: etm4x: Change etm4_platform_driver driver for MMIO devices

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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



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