[jfern:nova-core-experiments 247/411] warning: field `0` is never read

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git nova-core-experiments
head:   3b93174b3502247b0c46bd54a7cf5f4105274edb
commit: fcfb703d90cd9cca4917782f4537e7cdcd6281e1 [247/411] rust: add auxiliary bus abstraction
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250308/202503081305.wDEJstf8-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250308/202503081305.wDEJstf8-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/202503081305.wDEJstf8-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: field `0` is never read
   --> rust/kernel/auxiliary_bus.rs:85:21
   |
   85 | pub struct DeviceId(bindings::auxiliary_device_id);
   |            -------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |            |
   |            field in this struct
   |
   = note: `#[warn(dead_code)]` on by default
   help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
   |
   85 | pub struct DeviceId(());
   |                     ~~
--
>> warning: unsafe impl missing a safety comment
   --> rust/kernel/auxiliary_bus.rs:87:1
   |
   87 | unsafe impl RawDeviceId for DeviceId {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = 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
--
>> warning: missing documentation for a module
   --> rust/kernel/lib.rs:38:1
   |
   38 | pub mod auxiliary_bus;
   | ^^^^^^^^^^^^^^^^^^^^^
   |
   = note: requested on the command line with `-W missing-docs`

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