Hi Sui, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on drm/drm-next] [also build test WARNING on robh/for-next v5.17-rc4 next-20220217] [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/Sui-Jingfeng/drm-lsdc-add-drm-driver-for-loongson-display-controller/20220217-185718 base: git://anongit.freedesktop.org/drm/drm drm-next config: alpha-buildonly-randconfig-r001-20220217 (https://download.01.org/0day-ci/archive/20220217/202202172257.4uMfltD8-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 11.2.0 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 # https://github.com/0day-ci/linux/commit/822d08dcd4408130e10897446cfdd640bcd53c8a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Sui-Jingfeng/drm-lsdc-add-drm-driver-for-loongson-display-controller/20220217-185718 git checkout 822d08dcd4408130e10897446cfdd640bcd53c8a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=alpha SHELL=/bin/bash drivers/gpu/drm/lsdc/ 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/gpu/drm/lsdc/lsdc_plane.c: In function 'lsdc_cursor_atomic_disable': >> drivers/gpu/drm/lsdc/lsdc_plane.c:420:26: warning: variable 'crtc' set but not used [-Wunused-but-set-variable] 420 | struct drm_crtc *crtc; | ^~~~ vim +/crtc +420 drivers/gpu/drm/lsdc/lsdc_plane.c 413 414 static void lsdc_cursor_atomic_disable(struct drm_plane *plane, 415 struct drm_atomic_state *state) 416 { 417 struct drm_device *ddev = plane->dev; 418 struct lsdc_device *ldev = to_lsdc(ddev); 419 struct drm_plane_state *old_plane_state; > 420 struct drm_crtc *crtc; 421 422 old_plane_state = drm_atomic_get_old_plane_state(state, plane); 423 424 if (old_plane_state) 425 crtc = old_plane_state->crtc; 426 427 lsdc_reg_write32(ldev, LSDC_CURSOR_CFG_REG, 0); 428 429 drm_dbg(ddev, "%s disabled\n", plane->name); 430 } 431 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
