tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 358feceebbf68f33c44c6650d14455389e65282d commit: 5fe6b98ae00dc2e0ac24ef8a45d828b82a4aae90 drm/amd/display: Update dmub code date: 3 months ago config: i386-randconfig-a014-20200624 (attached as .config) compiler: gcc-4.9 (Ubuntu 4.9.3-13ubuntu2) 4.9.3 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 5fe6b98ae00dc2e0ac24ef8a45d828b82a4aae90 # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>): drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c: In function 'dmub_dcn20_enable_dmub_boot_options': union dmub_fw_boot_options boot_options = {0}; ^ drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c:326:8: warning: (near initialization for 'boot_options.bits') [-Wmissing-braces] vim +326 drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c 323 324 void dmub_dcn20_enable_dmub_boot_options(struct dmub_srv *dmub) 325 { 327 328 REG_WRITE(DMCUB_SCRATCH14, boot_options.all); 329 } 330 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org