[intel-lts:5.15/preempt-rt 13220/21928] drivers/gpu/drm/msm/adreno/adreno_device.c:664:12: warning: unused function 'adreno_system_suspend'

[intel-lts:5.15/preempt-rt 13220/21928] drivers/gpu/drm/msm/adreno/adreno_device.c:664:12: warning: unused function 'adreno_system_suspend'

[kernel test robot]

tree:   https://github.com/intel/linux-intel-lts.git 5.15/preempt-rt
head:   616223323be527ff85db4026f7fcf4a296ad5b16
commit: f74aa21a1d6b433676ee02cf983a294605111b40 [13220/21928] drm/msm/gpu: Park scheduler threads for system suspend
config: arm-randconfig-r046-20230118 (https://download.01.org/0day-ci/archive/20230119/202301192057.OadChqZv-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel/linux-intel-lts/commit/f74aa21a1d6b433676ee02cf983a294605111b40
        git remote add intel-lts https://github.com/intel/linux-intel-lts.git
        git fetch --no-tags intel-lts 5.15/preempt-rt
        git checkout f74aa21a1d6b433676ee02cf983a294605111b40
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/msm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/msm/adreno/adreno_device.c:664:12: warning: unused function 'adreno_system_suspend' [-Wunused-function]
   static int adreno_system_suspend(struct device *dev)
              ^
>> drivers/gpu/drm/msm/adreno/adreno_device.c:688:12: warning: unused function 'adreno_system_resume' [-Wunused-function]
   static int adreno_system_resume(struct device *dev)
              ^
   2 warnings generated.


vim +/adreno_system_suspend +664 drivers/gpu/drm/msm/adreno/adreno_device.c

   663	
 > 664	static int adreno_system_suspend(struct device *dev)
   665	{
   666		struct msm_gpu *gpu = dev_to_gpu(dev);
   667		int remaining, ret;
   668	
   669		suspend_scheduler(gpu);
   670	
   671		remaining = wait_event_timeout(gpu->retire_event,
   672					       active_submits(gpu) == 0,
   673					       msecs_to_jiffies(1000));
   674		if (remaining == 0) {
   675			dev_err(dev, "Timeout waiting for GPU to suspend\n");
   676			ret = -EBUSY;
   677			goto out;
   678		}
   679	
   680		ret = pm_runtime_force_suspend(dev);
   681	out:
   682		if (ret)
   683			resume_scheduler(gpu);
   684	
   685		return ret;
   686	}
   687	
 > 688	static int adreno_system_resume(struct device *dev)
   689	{
   690		resume_scheduler(dev_to_gpu(dev));
   691		return pm_runtime_force_resume(dev);
   692	}
   693	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests