Linux next-20230523 and next-20230524 the x86_64 and i386 builds failed with clang. Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> make --silent --keep-going \ --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/build ARCH=x86_64 \ SRCARCH=x86 CROSS_COMPILE=x86_64-linux-gnu- \ 'HOSTCC=sccache clang' 'CC=sccache clang' \ LLVM=1 LLVM_IAS=1 drivers/gpu/drm/i915/display/intel_display.c:6012:3: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough] case I915_FORMAT_MOD_X_TILED: ^ drivers/gpu/drm/i915/display/intel_display.c:6012:3: note: insert 'break;' to avoid fall-through case I915_FORMAT_MOD_X_TILED: ^ break; 1 error generated. log: - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230524/testrun/17171777/suite/build/test/clang-lkftconfig/log - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230524/testrun/17171777/suite/build/test/clang-lkftconfig/history/ -- Linaro LKFT https://lkft.linaro.org