linux-kernel - Re: [PATCH v2 3/4] rust: pci: impl TryFrom<&Device> for &pci::Device

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Message-ID: <202503220040.TDePlxma-lkp@intel.com>
Date: Sat, 22 Mar 2025 00:56:58 +0800
From: kernel test robot <lkp@...el.com>
To: Danilo Krummrich <dakr@...nel.org>, bhelgaas@...gle.com,
	gregkh@...uxfoundation.org, rafael@...nel.org, ojeda@...nel.org,
	alex.gaynor@...il.com, boqun.feng@...il.com, gary@...yguo.net,
	bjorn3_gh@...tonmail.com, benno.lossin@...ton.me,
	a.hindborg@...nel.org, aliceryhl@...gle.com, tmgross@...ch.edu
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-pci@...r.kernel.org, rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org, Danilo Krummrich <dakr@...nel.org>
Subject: Re: [PATCH v2 3/4] rust: pci: impl TryFrom<&Device> for &pci::Device

Hi Danilo,

kernel test robot noticed the following build errors:

[auto build test ERROR on 51d0de7596a458096756c895cfed6bc4a7ecac10]

url:    https://github.com/intel-lab-lkp/linux/commits/Danilo-Krummrich/rust-device-implement-Device-parent/20250321-063101
base:   51d0de7596a458096756c895cfed6bc4a7ecac10
patch link:    https://lore.kernel.org/r/20250320222823.16509-4-dakr%40kernel.org
patch subject: [PATCH v2 3/4] rust: pci: impl TryFrom<&Device> for &pci::Device
config: x86_64-buildonly-randconfig-005-20250321 (https://download.01.org/0day-ci/archive/20250322/202503220040.TDePlxma-lkp@intel.com/config)
compiler: clang version 20.1.1 (https://github.com/llvm/llvm-project 424c2d9b7e4de40d0804dd374721e6411c27d1d1)
rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250322/202503220040.TDePlxma-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/202503220040.TDePlxma-lkp@intel.com/

All errors (new ones prefixed by >>):

   ***
   *** Rust bindings generator 'bindgen' < 0.69.5 together with libclang >= 19.1
   *** may not work due to a bug (https://github.com/rust-lang/rust-bindgen/pull/2824),
   *** unless patched (like Debian's).
   ***   Your bindgen version:  0.65.1
   ***   Your libclang version: 20.1.1
   ***
   ***
   *** Please see Documentation/rust/quick-start.rst for details
   *** on how to set up the Rust support.
   ***
>> error[E0133]: use of extern static is unsafe and requires unsafe block
   --> rust/kernel/pci.rs:473:43
   |
   473 |         if dev.bus_type_raw() != addr_of!(bindings::pci_bus_type) {
   |                                           ^^^^^^^^^^^^^^^^^^^^^^ use of extern static
   |
   = note: extern statics are not controlled by the Rust type system: invalid data, aliasing violations or data races will cause undefined behavior

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