linux-kernel - Re: [PATCH v2 4/5] rust: io: add `register!` macro

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Message-ID: <202601212253.xJmIu2oa-lkp@intel.com>
Date: Wed, 21 Jan 2026 22:39:59 +0100
From: kernel test robot <lkp@...el.com>
To: Alexandre Courbot <acourbot@...dia.com>,
	Danilo Krummrich <dakr@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Daniel Almeida <daniel.almeida@...labora.com>,
	Miguel Ojeda <ojeda@...nel.org>, Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Trevor Gross <tmgross@...ch.edu>
Cc: oe-kbuild-all@...ts.linux.dev, Yury Norov <yury.norov@...il.com>,
	John Hubbard <jhubbard@...dia.com>,
	Alistair Popple <apopple@...dia.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Timur Tabi <ttabi@...dia.com>, Edwin Peer <epeer@...dia.com>,
	Eliot Courtney <ecourtney@...dia.com>,
	Dirk Behme <dirk.behme@...bosch.com>,
	Steven Price <steven.price@....com>, rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Alexandre Courbot <acourbot@...dia.com>
Subject: Re: [PATCH v2 4/5] rust: io: add `register!` macro

Hi Alexandre,

kernel test robot noticed the following build warnings:

[auto build test WARNING on c259cd7ea3c9ad369c473ba2385d82e3432088b1]

url:    https://github.com/intel-lab-lkp/linux/commits/Alexandre-Courbot/rust-enable-the-generic_arg_infer-feature/20260121-152936
base:   c259cd7ea3c9ad369c473ba2385d82e3432088b1
patch link:    https://lore.kernel.org/r/20260121-register-v2-4-79d9b8d5e36a%40nvidia.com
patch subject: [PATCH v2 4/5] rust: io: add `register!` macro
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260121/202601212253.xJmIu2oa-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/20260121/202601212253.xJmIu2oa-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601212253.xJmIu2oa-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: unresolved link to `crate::bitfield`
   --> rust/kernel/io/register.rs:15:20
   |
   15 | //! [`bitfield!`]: crate::bitfield!
   |                    ^^^^^^^^^^^^^^^^ no item named `bitfield` in module `kernel`
   |
   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
--
>> warning: unresolved link to `crate::bitfield`
   --> rust/kernel/io/register.rs:411:20
   |
   411 | /// [`bitfield!`]: crate::bitfield!
   |                    ^^^^^^^^^^^^^^^^ no item named `bitfield` in module `kernel`

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