Hi Andreas, kernel test robot noticed the following build warnings: [auto build test WARNING on fec50db7033ea478773b159e0e2efb135270e3b7] url: https://github.com/intel-lab-lkp/linux/commits/Andreas-Hindborg/rust-block-introduce-kernel-block-mq-module/20240513-024107 base: fec50db7033ea478773b159e0e2efb135270e3b7 patch link: https://lore.kernel.org/r/20240512183950.1982353-2-nmi%40metaspace.dk patch subject: [PATCH 1/3] rust: block: introduce `kernel::block::mq` module config: x86_64-buildonly-randconfig-004-20240514 (https://download.01.org/0day-ci/archive/20240514/202405140410.Pg9JrkDO-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240514/202405140410.Pg9JrkDO-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202405140410.Pg9JrkDO-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> warning: method `to_blk_status` is never used --> rust/kernel/error.rs:133:19 | 97 | impl Error { | ---------- method in this implementation ... 133 | pub(crate) fn to_blk_status(self) -> bindings::blk_status_t { | ^^^^^^^^^^^^^ | = note: `#[warn(dead_code)]` on by default -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
