Hi Helge, kernel test robot noticed the following build warnings: [auto build test WARNING on deller-parisc/for-next] [also build test WARNING on linus/master v6.3 next-20230424] [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/Helge-Deller/fbdev-visfxfb-HP-Visualize-FX-framebufffer-driver/20230424-060227 base: https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next patch link: https://lore.kernel.org/r/ZEWqkJekzyIlhBlW%40p100 patch subject: [PATCH v3] fbdev: visfxfb: HP Visualize-FX framebufffer driver config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20230425/202304251827.bmcNCFkF-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 12.1.0 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/intel-lab-lkp/linux/commit/96fac55bbf4fc2930b24f7a757369196a5d4940c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Helge-Deller/fbdev-visfxfb-HP-Visualize-FX-framebufffer-driver/20230424-060227 git checkout 96fac55bbf4fc2930b24f7a757369196a5d4940c # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc SHELL=/bin/bash drivers/video/fbdev/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304251827.bmcNCFkF-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/video/fbdev/visfxfb.c:1067:5: warning: no previous prototype for 'visfx_sync' [-Wmissing-prototypes] 1067 | int visfx_sync(struct fb_info *info) | ^~~~~~~~~~ >> drivers/video/fbdev/visfxfb.c:1431:5: warning: no previous prototype for 'visfx_set_default_mode' [-Wmissing-prototypes] 1431 | int visfx_set_default_mode(struct fb_info *info) | ^~~~~~~~~~~~~~~~~~~~~~ vim +/visfx_sync +1067 drivers/video/fbdev/visfxfb.c 1066 > 1067 int visfx_sync(struct fb_info *info) 1068 { 1069 visfx_wait_write_pipe_empty(info); 1070 return 0; 1071 } 1072 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
