Hi Aditya, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.14-rc4 next-20250227] [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/Aditya-Garg/drm-format-helper-Add-conversion-from-XRGB8888-to-BGR888/20250224-214352 base: linus/master patch link: https://lore.kernel.org/r/844C1D39-4891-4DC2-8458-F46FA1B59FA0%40live.com patch subject: [PATCH v4 2/2] drm/tiny: add driver for Apple Touch Bars in x86 Macs config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20250228/202502280748.oNKTNuMK-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250228/202502280748.oNKTNuMK-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502280748.oNKTNuMK-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/gpu/drm/tiny/appletbdrm.c: In function 'appletbdrm_primary_plane_duplicate_state': >> drivers/gpu/drm/tiny/appletbdrm.c:524:40: warning: variable 'old_appletbdrm_state' set but not used [-Wunused-but-set-variable] 524 | struct appletbdrm_plane_state *old_appletbdrm_state; | ^~~~~~~~~~~~~~~~~~~~ vim +/old_appletbdrm_state +524 drivers/gpu/drm/tiny/appletbdrm.c 520 521 static struct drm_plane_state *appletbdrm_primary_plane_duplicate_state(struct drm_plane *plane) 522 { 523 struct drm_shadow_plane_state *new_shadow_plane_state; > 524 struct appletbdrm_plane_state *old_appletbdrm_state; 525 struct appletbdrm_plane_state *appletbdrm_state; 526 527 if (WARN_ON(!plane->state)) 528 return NULL; 529 530 old_appletbdrm_state = to_appletbdrm_plane_state(plane->state); 531 appletbdrm_state = kzalloc(sizeof(*appletbdrm_state), GFP_KERNEL); 532 if (!appletbdrm_state) 533 return NULL; 534 535 /* Request and response are not duplicated and are allocated in .atomic_check */ 536 appletbdrm_state->request = NULL; 537 appletbdrm_state->response = NULL; 538 539 appletbdrm_state->request_size = 0; 540 appletbdrm_state->frames_size = 0; 541 542 new_shadow_plane_state = &appletbdrm_state->base; 543 544 __drm_gem_duplicate_shadow_plane_state(plane, new_shadow_plane_state); 545 546 return &new_shadow_plane_state->base; 547 } 548 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki