tree: git://people.freedesktop.org/~mlankhorst/linux xe head: 4bc3039b4403c76a13d58f7ac1f7c07dca6f88d8 commit: b438fc88b386c9beafe4bfdce3986025b59ae64d [40/165] xe/mmio: add 64-bit register read config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220126/202201261503.3tLspdsf-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add mlankhorst git://people.freedesktop.org/~mlankhorst/linux git fetch --no-tags mlankhorst xe git checkout b438fc88b386c9beafe4bfdce3986025b59ae64d # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/xe/xe_device.c:17: drivers/gpu/drm/xe/xe_mmio.h: In function 'xe_mmio_read64': 28 | return readq(xe->mmio.regs + reg); | ^~~~~ | readl cc1: all warnings being treated as errors -- In file included from drivers/gpu/drm/xe/xe_irq.c:9: drivers/gpu/drm/xe/xe_mmio.h: In function 'xe_mmio_read64': 28 | return readq(xe->mmio.regs + reg); | ^~~~~ | readl drivers/gpu/drm/xe/xe_irq.c: At top level: drivers/gpu/drm/xe/xe_irq.c:30:6: error: no previous prototype for 'gen11_gt_irq_reset' [-Werror=missing-prototypes] 30 | void gen11_gt_irq_reset(struct xe_device *xe) | ^~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +28 drivers/gpu/drm/xe/xe_mmio.h 25 26 static inline uint64_t xe_mmio_read64(struct xe_device *xe, uint32_t reg) 27 { 29 } 30 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org