Re: [PATCH] rust: add procedural macro for declaring configfs attributes

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

Hi Malte,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 254f49634ee16a731174d2ae34bc50bd5f45e731]

url:    https://github.com/intel-lab-lkp/linux/commits/Malte-Wechter/rust-add-procedural-macro-for-declaring-configfs-attributes/20260520-154816
base:   254f49634ee16a731174d2ae34bc50bd5f45e731
patch link:    https://lore.kernel.org/r/20260520-configfs-syn-v1-1-6c5b80a9cef2%40gmail.com
patch subject: [PATCH] rust: add procedural macro for declaring configfs attributes
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260520/202605201854.YArCKAtw-lkp@intel.com/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/20260520/202605201854.YArCKAtw-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/202605201854.YArCKAtw-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: unclosed HTML tag `Configuration`
   --> rust/macros/lib.rs:561:30
   |
   561 | ///                 Subsystem<Configuration>,
   |                              ^^^^^^^^^^^^^^^
   |
   = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
   help: try marking as source code
   |
   561 | ///                 `Subsystem<Configuration>`,
   |                     +                        +
--
>> warning: unclosed HTML tag `Configuration`
   --> rust/macros/lib.rs:564:30
   |
   564 | ///                 Subsystem<Configuration>,
   |                              ^^^^^^^^^^^^^^^
   |
   help: try marking as source code
   |
   564 | ///                 `Subsystem<Configuration>`,
   |                     +                        +
--
>> warning: unresolved link to `crate::configfs_attrs`
   --> rust/kernel/configfs.rs:240:1
   |
   240 | / /// A configfs group.
   241 | | ///
   242 | | /// To add a subgroup to configfs, pass this type as `ctype` to
   243 | | /// [`crate::configfs_attrs`] when creating a group in [`GroupOperations::make_group`].
   | |_______________________________________________________________________________________^
   |
   = note: the link appears in this line:
--
>> warning: unresolved link to `kernel::configfs_attrs`
   --> rust/kernel/configfs.rs:630:1
   |
   630 | / /// Operations supported by an attribute.
   631 | | ///
   632 | | /// Implement this trait on type and pass that type as generic parameter when
   633 | | /// creating an [`Attribute`]. The type carrying the implementation serve no
   ...   |
   640 | | /// attributes via the [`kernel::configfs_attrs`] macro, to tie
   641 | | /// `AttributeOperations` implementations to concrete named attributes.
   | |_______________________________________________________________________^
   |
   = note: the link appears in this line:
--
>> warning: unresolved link to `kernel::configfs_attrs`
   --> rust/kernel/configfs.rs:672:7
   |
   672 | /// [`kernel::configfs_attrs`] macro to declare a static set of attributes for a
   |       ^^^^^^^^^^^^^^^^^^^^^^ no item named `configfs_attrs` in module `kernel`
--
>> warning: unresolved link to `kernel::configfs_attrs`
   --> rust/kernel/configfs.rs:678:7
   |
   678 | /// [`kernel::configfs_attrs`] macro.
   |       ^^^^^^^^^^^^^^^^^^^^^^ no item named `configfs_attrs` in module `kernel`
--
>> warning: unresolved link to `kernel::configfs_attrs`
   --> rust/kernel/configfs.rs:723:1
   |
   723 | / /// A representation of the attributes that will appear in a [`Group`] or
   724 | | /// [`Subsystem`].
   725 | | ///
   726 | | /// Users should not directly instantiate objects of this type. Rather, they
   727 | | /// should use the [`kernel::configfs_attrs`] macro to statically declare the
   728 | | /// shape of a [`Group`] or [`Subsystem`].
   | |__________________________________________^
   |
   = note: the link appears in this line:

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