Hi Jason, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next v5.13-rc6 next-20210615] [cannot apply to drm/drm-next] [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] url: https://github.com/0day-ci/linux/commits/Jason-Ekstrand/drm-i915-gem-ioct... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: x86_64-randconfig-a002-20210616 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/b91148796ca5458a4a8b445e53d711d87... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jason-Ekstrand/drm-i915-gem-ioctl-clean-ups-v6/20210616-151016 git checkout b91148796ca5458a4a8b445e53d711d870391163 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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 >>): __context_engines_static(const struct i915_gem_context *ctx) ^ 1 error generated. vim +/__context_engines_static +364 drivers/gpu/drm/i915/gem/i915_gem_context.c 40521054fd46f9 drivers/gpu/drm/i915/i915_gem_context.c Ben Widawsky 2012-06-04 362 2e0986a58cc4f2 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-23 363 static inline struct i915_gem_engines * 2e0986a58cc4f2 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-23 @364 __context_engines_static(const struct i915_gem_context *ctx) 2e0986a58cc4f2 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-23 365 { 2e0986a58cc4f2 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-23 366 return rcu_dereference_protected(ctx->engines, true); 2e0986a58cc4f2 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-23 367 } 2e0986a58cc4f2 drivers/gpu/drm/i915/gem/i915_gem_context.c Chris Wilson 2019-10-23 368 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org