Hi Zhang, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 08e54ea5e4a4948874ca30d91be3e5cca4ecbeec commit: 1ee722823d036ae6478e6bdb1afb12abff10a907 [2709/2709] fs/buffer: replace ll_rw_block() config: x86_64-randconfig-161-20250117 (https://download.01.org/0day-ci/archive/20250117/202501171739.hW4TwhmP-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250117/202501171739.hW4TwhmP-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202501171739.hW4TwhmP-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

fs/buffer.o: warning: objtool: __breadahead_gfp()+0x9b: unreachable instruction

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki