[kbuild-all] drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_init.c:30:6: warning: no previous prototype for 'dcn303_hw_sequencer_construct'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 923dcc5eb0c111eccd51cc7ce1658537e3c38b25 commit: cd6d421e3d1ad5926b74091254e345db730e7706 drm/amd/display: Initial DC support for Beige Goby date: 6 months ago config: x86_64-randconfig-m001-20211109 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout cd6d421e3d1ad5926b74091254e345db730e7706 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 30 | void dcn303_hw_sequencer_construct(struct dc *dc) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/dcn303_hw_sequencer_construct +30 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn303/dcn303_init.c 29 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org