Hi Sungwoo, kernel test robot noticed the following build errors:
[auto build test ERROR on axboe/for-next] [also build test ERROR on device-mapper-dm/for-next linus/master v6.16-rc1 next-20260306] [cannot apply to linux-nvme/for-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Sungwoo-Kim/blk-mq-nvme-Fix-general-protection-fault-in-nvme_setup_descriptor_pools/20260309-143107 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next patch link: https://lore.kernel.org/r/20260309062840.2937858-2-iam%40sung-woo.kim patch subject: [PATCH] blk-mq: nvme: Fix general protection fault in nvme_setup_descriptor_pools() config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260309/[email protected]/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) rustc: rustc 1.88.0 (6b00bc388 2025-06-23) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260309/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): >> error[E0308]: mismatched types --> rust/kernel/block/mq/operations.rs:274:28 | 274 | init_request: Some(Self::init_request_callback), | ---- ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found fn item | | | arguments to this enum variant are incorrect | = note: expected fn pointer `unsafe extern "C" fn(_, _, _, i32) -> _` found fn item `unsafe extern "C" fn(_, _, _, u32) -> _ {block::mq::operations::OperationsVTable::<T>::init_request_callback}` help: the type constructed contains `unsafe extern "C" fn(*mut bindings::blk_mq_tag_set, *mut bindings::request, u32, u32) -> i32 {block::mq::operations::OperationsVTable::<T>::init_request_callback}` due to the type of the argument passed --> rust/kernel/block/mq/operations.rs:274:23 | 274 | init_request: Some(Self::init_request_callback), | ^^^^^---------------------------^ | | | this argument influences the type of `Some` note: tuple variant defined here --> /opt/cross/rustc-1.88.0-bindgen-0.72.1/rustup/toolchains/1.88.0-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/option.rs:597:5 | 597 | Some(#[stable(feature = "rust1", since = "1.0.0")] T), | ^^^^ -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
