tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 5469f0c06732a077c70a759a81f2a1f00b277694 commit: e0f74ed4634d6d662e7dca19115d0da1143a3ec0 [4790/7959] i915/gvt: Separate the MMIO tracking table from GVT-g config: x86_64-rhel-8.3-syz (https://download.01.org/0day-ci/archive/20220430/202204302238.gbu0m6qN-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e0f74ed4634d6d662e7dca19115d0da1143a3ec0 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout e0f74ed4634d6d662e7dca19115d0da1143a3ec0 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> drivers/gpu/drm/i915/gvt/handlers.c:74:6: error: no previous prototype for 'intel_gvt_match_device' [-Werror=missing-prototypes] 74 | bool intel_gvt_match_device(struct intel_gvt *gvt, | ^~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/intel_gvt_match_device +74 drivers/gpu/drm/i915/gvt/handlers.c 12d14cc43b3470 Zhi Wang 2016-08-30 73 12d14cc43b3470 Zhi Wang 2016-08-30 @74 bool intel_gvt_match_device(struct intel_gvt *gvt, 12d14cc43b3470 Zhi Wang 2016-08-30 75 unsigned long device) 12d14cc43b3470 Zhi Wang 2016-08-30 76 { 12d14cc43b3470 Zhi Wang 2016-08-30 77 return intel_gvt_get_device_type(gvt) & device; 12d14cc43b3470 Zhi Wang 2016-08-30 78 } 12d14cc43b3470 Zhi Wang 2016-08-30 79 :::::: The code at line 74 was first introduced by commit :::::: 12d14cc43b34706283246917329b2182163ba9aa drm/i915/gvt: Introduce a framework for tracking HW registers. :::::: TO: Zhi Wang <zhi.a.wang@xxxxxxxxx> :::::: CC: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
