[kbuild-all] [linux-next:master 10257/10701] drivers/gpu/drm/msm/adreno/a6xx_hfi.c:345:5: warning: no previous prototype for 'a6xx_hfi_send_start'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: fb57b1fabcb28f358901b2df90abd2b48abc1ca8 commit: 8167e6fa76c8f7174dc9643f60c63bc083b35787 [10257/10701] drm/msm/a6xx: HFI v2 for A640 and A650 config: arm-randconfig-r013-20200519 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 8167e6fa76c8f7174dc9643f60c63bc083b35787 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): 345 | int a6xx_hfi_send_start(struct a6xx_gmu *gmu) | ^~~~~~~~~~~~~~~~~~~ 353 | int a6xx_hfi_send_core_fw_start(struct a6xx_gmu *gmu) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/a6xx_hfi_send_start +345 drivers/gpu/drm/msm/adreno/a6xx_hfi.c 344 346 { 347 struct a6xx_hfi_msg_start msg = { 0 }; 348 349 return a6xx_hfi_send_msg(gmu, HFI_H2F_MSG_START, &msg, sizeof(msg), 350 NULL, 0); 351 } 352 354 { 355 struct a6xx_hfi_msg_core_fw_start msg = { 0 }; 356 357 return a6xx_hfi_send_msg(gmu, HFI_H2F_MSG_CORE_FW_START, &msg, 358 sizeof(msg), NULL, 0); 359 } 360 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org