Hi Jocelyn, kernel test robot noticed the following build warnings: [auto build test WARNING on bfa4437fd3938ae2e186e7664b2db65bb8775670] url: https://github.com/intel-lab-lkp/linux/commits/Jocelyn-Falempe/drm-format-helper-Add-drm_fb_blit_from_r1-and-drm_fb_fill/20240227-185901 base: bfa4437fd3938ae2e186e7664b2db65bb8775670 patch link: https://lore.kernel.org/r/20240227100459.194478-5-jfalempe%40redhat.com patch subject: [PATCH v8 4/8] drm/fb_dma: Add generic set_scanout_buffer() for drm_panic config: arm-defconfig (https://download.01.org/0day-ci/archive/20240229/202402292348.4l5K5ZmN-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240229/202402292348.4l5K5ZmN-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/202402292348.4l5K5ZmN-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/pl111/pl111_display.c:18: >> include/drm/drm_fb_dma_helper.h:23:46: warning: declaration of 'struct drm_plane' will not be visible outside of this function [-Wvisibility] void drm_panic_gem_set_scanout_buffer(struct drm_plane *plane, ^ 1 warning generated. vim +23 include/drm/drm_fb_dma_helper.h 11 12 struct drm_gem_dma_object *drm_fb_dma_get_gem_obj(struct drm_framebuffer *fb, 13 unsigned int plane); 14 15 dma_addr_t drm_fb_dma_get_gem_addr(struct drm_framebuffer *fb, 16 struct drm_plane_state *state, 17 unsigned int plane); 18 19 void drm_fb_dma_sync_non_coherent(struct drm_device *drm, 20 struct drm_plane_state *old_state, 21 struct drm_plane_state *state); 22 > 23 void drm_panic_gem_set_scanout_buffer(struct drm_plane *plane, 24 struct drm_framebuffer *fb); 25 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
