linux-kernel - Re: [PATCH v17 10/16] rust: sync: Introduce lock::Lock::lock

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Message-ID: <202601221246.Qfwh5Atq-lkp@intel.com>
Date: Thu, 22 Jan 2026 12:56:55 +0100
From: kernel test robot <lkp@...el.com>
To: Lyude Paul <lyude@...hat.com>, rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Cc: oe-kbuild-all@...ts.linux.dev, Boqun Feng <boqun.feng@...il.com>,
	Daniel Almeida <daniel.almeida@...labora.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...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>,
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
	Waiman Long <longman@...hat.com>
Subject: Re: [PATCH v17 10/16] rust: sync: Introduce lock::Lock::lock_with()
 and friends

Hi Lyude,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 2ad6c5cdc89acfefb01b84afa5e55262c40d6fec]

url:    https://github.com/intel-lab-lkp/linux/commits/Lyude-Paul/preempt-Introduce-HARDIRQ_DISABLE_BITS/20260122-064928
base:   2ad6c5cdc89acfefb01b84afa5e55262c40d6fec
patch link:    https://lore.kernel.org/r/20260121223933.1568682-11-lyude%40redhat.com
patch subject: [PATCH v17 10/16] rust: sync: Introduce lock::Lock::lock_with() and friends
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260122/202601221246.Qfwh5Atq-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/20260122/202601221246.Qfwh5Atq-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/202601221246.Qfwh5Atq-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: unresolved link to `Backend::BackendInContext`
   --> rust/kernel/sync/lock.rs:39:27
   |
   39 | /// [`BackendInContext`]: Backend::BackendInContext
   |                           ^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Backend` has no associated item named `BackendInContext`
   |
   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
--
>> warning: unresolved link to `Backend::Context`
   --> rust/kernel/sync/lock.rs:40:18
   |
   40 | /// [`Context`]: Backend::Context
   |                  ^^^^^^^^^^^^^^^^ the trait `Backend` has no associated item named `Context`

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