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Fri, 25 Mar 2022 05:51:56 +0000 Date: Fri, 25 Mar 2022 13:50:52 +0800 From: kernel test robot To: Alex Deucher Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Evan Quan Subject: drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:1355:6: warning: variable 'num_of_active_display' set but not used Message-ID: <202203251309.VJH4ngVX-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 85c7000fda0029ec16569b1eec8fd3a8d026be73 commit: 75145aab7a0d865b361de687b201e8c4b76425eb drm/amdgpu/swsmu: clean up a bunch of stale interfaces date: 1 year, 5 months ago config: arm64-randconfig-r013-20220324 (https://download.01.org/0day-ci/archive/20220325/202203251309.VJH4ngVX-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d) 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=75145aab7a0d865b361de687b201e8c4b76425eb git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 75145aab7a0d865b361de687b201e8c4b76425eb # 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/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c:1355:6: warning: variable 'num_of_active_display' set but not used [-Wunused-but-set-variable] int num_of_active_display = 0; ^ 1 warning generated. vim +/num_of_active_display +1355 drivers/gpu/drm/amd/amdgpu/../pm/swsmu/amdgpu_smu.c 137d63abbf6a085 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2018-11-29 1350 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1351 int smu_display_configuration_change(struct smu_context *smu, 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1352 const struct amd_pp_display_configuration *display_config) 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1353 { 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1354 int index = 0; 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 @1355 int num_of_active_display = 0; 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1356 2b7ad277e96577e drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Evan Quan 2020-05-25 1357 if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled) 2b7ad277e96577e drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Evan Quan 2020-05-25 1358 return -EOPNOTSUPP; 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1359 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1360 if (!display_config) 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1361 return -EINVAL; 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1362 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1363 mutex_lock(&smu->mutex); 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1364 ce63d8f8b55d28c drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Evan Quan 2020-06-08 1365 smu_set_min_dcef_deep_sleep(smu, 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1366 display_config->min_dcef_deep_sleep_set_clk / 100); 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1367 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1368 for (index = 0; index < display_config->num_path_including_non_display; index++) { 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1369 if (display_config->displays[index].controller_id != 0) 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1370 num_of_active_display++; 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1371 } 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1372 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1373 mutex_unlock(&smu->mutex); 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1374 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1375 return 0; 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1376 } 94ed6d0cfdb867b drivers/gpu/drm/amd/powerplay/amdgpu_smu.c Huang Rui 2019-01-11 1377 :::::: The code at line 1355 was first introduced by commit :::::: 94ed6d0cfdb867be9bf05f03d682980bce5d0036 drm/amd/powerplay: add smu display configuration change function :::::: TO: Huang Rui :::::: CC: Alex Deucher -- 0-DAY CI Kernel Test Service https://01.org/lkp