tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 86c2f5d653058798703549e1be39a819fcac0d5d commit: e6f393bc939d566ce3def71232d8013de9aaadde objtool: Fix function fallthrough detection date: 11 days ago config: x86_64-randconfig-b0-05250427 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: git checkout e6f393bc939d566ce3def71232d8013de9aaadde # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All warnings (new ones prefixed by >>): >> drivers/mtd/chips/cfi_util.o: warning: objtool: cfi_qry_present() falls through to next function cfi_qry_mode_on() --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation