Hi Mitchell, kernel test robot noticed the following build warnings: [auto build test WARNING on 0c5928deada15a8d075516e6e0d9ee19011bb000] url: https://github.com/intel-lab-lkp/linux/commits/Mitchell-Levy/rust-lockdep-Remove-support-for-dynamically-allocated-LockClassKeys/20241220-050220 base: 0c5928deada15a8d075516e6e0d9ee19011bb000 patch link: https://lore.kernel.org/r/20241219-rust-lockdep-v2-1-f65308fbc5ca%40gmail.com patch subject: [PATCH v2 1/2] rust: lockdep: Remove support for dynamically allocated LockClassKeys config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20241225/202412251433.T3BhO2CQ-lkp@xxxxxxxxx/config) 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/20241225/202412251433.T3BhO2CQ-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/202412251433.T3BhO2CQ-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> warning: unsafe block missing a safety comment --> rust/kernel/sync.rs:45:13 | 45 | unsafe { ::core::mem::MaybeUninit::uninit().assume_init() }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ::: rust/kernel/block/mq/gen_disk.rs:111:17 | 111 | static_lock_class!().as_ptr(), | -------------------- in this macro invocation | = help: consider adding a safety comment on the preceding line = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#undocumented_unsafe_blocks = note: requested on the command line with `-W clippy::undocumented-unsafe-blocks` = note: this warning originates in the macro `static_lock_class` (in Nightly builds, run with -Z macro-backtrace for more info) -- >> warning: unsafe block missing a safety comment --> rust/kernel/sync.rs:45:13 | 45 | unsafe { ::core::mem::MaybeUninit::uninit().assume_init() }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ::: rust/kernel/workqueue.rs:218:21 | 218 | work <- new_work!("Queue::try_spawn"), | ----------------------------- in this macro invocation | = help: consider adding a safety comment on the preceding line = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#undocumented_unsafe_blocks = note: this warning originates in the macro `$crate::static_lock_class` which comes from the expansion of the macro `new_work` (in Nightly builds, run with -Z macro-backtrace for more info) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
