[openeuler:openEuler-1.0-LTS 1673/1673] block/blk-mq-sched.o: warning: objtool: blk_mq_sched_insert_request()+0x13f: unreachable instruction

[openeuler:openEuler-1.0-LTS 1673/1673] block/blk-mq-sched.o: warning: objtool: blk_mq_sched_insert_request()+0x13f: unreachable instruction

[kernel test robot]

Hi Ming,

First bad commit (maybe != root cause):

tree:   https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS
head:   a9d08fabefcfd9cb8ebe45f8b79a321c0f349d40
commit: 756a9563633e27b424df25eba9c7975967892ccd [1673/1673] blk-mq: insert passthrough request into hctx->dispatch directly
config: x86_64-buildonly-randconfig-002-20250628 (https://download.01.org/0day-ci/archive/20250630/202506301025.8TcXBis8-lkp@intel.com/config)
compiler: clang version 20.1.7 (https://github.com/llvm/llvm-project 6146a88f60492b520a36f8f8f3231e15f3cc6082)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250630/202506301025.8TcXBis8-lkp@intel.com/reproduce)

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/202506301025.8TcXBis8-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> block/blk-mq-sched.o: warning: objtool: blk_mq_sched_insert_request()+0x13f: unreachable instruction

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