linux-kernel - error[E0432]: unresolved import `kernel::firmware`

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Message-ID: <202512061721.rxKGnt5q-lkp@intel.com>
Date: Sat, 6 Dec 2025 17:26:56 +0800
From: kernel test robot <lkp@...el.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	Alexandre Courbot <acourbot@...dia.com>,
	John Hubbard <jhubbard@...dia.com>
Subject: error[E0432]: unresolved import `kernel::firmware`

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   416f99c3b16f582a3fc6d64a1f77f39d94b76de5
commit: 97ad568cd6a58804129ba071f3258b5c4782fb0d drm: nova: select NOVA_CORE
date:   5 weeks ago
config: x86_64-buildonly-randconfig-003-20251206 (https://download.01.org/0day-ci/archive/20251206/202512061721.rxKGnt5q-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/20251206/202512061721.rxKGnt5q-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/202512061721.rxKGnt5q-lkp@intel.com/

All errors (new ones prefixed by >>):

>> error[E0432]: unresolved import `kernel::firmware`
   --> drivers/gpu/nova-core/firmware.rs:10:5
   |
   10 | use kernel::firmware;
   |     ^^^^^^^^^^^^^^^^ no `firmware` in the root
   |
   note: found an item that was configured out
   --> rust/kernel/lib.rs:94:9
   |
   94 | pub mod firmware;
   |         ^^^^^^^^
   note: the item is gated here
   --> rust/kernel/lib.rs:93:1
   |
   93 | #[cfg(CONFIG_RUST_FW_LOADER_ABSTRACTIONS)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   help: consider importing this module instead
   |
   10 - use kernel::firmware;
   10 + use crate::firmware;
   |
--
>> error[E0432]: unresolved import `kernel::firmware`
   --> drivers/gpu/nova-core/firmware/riscv.rs:9:13
   |
   9  | use kernel::firmware::Firmware;
   |             ^^^^^^^^ could not find `firmware` in `kernel`
   |
   note: found an item that was configured out
   --> rust/kernel/lib.rs:94:9
   |
   94 | pub mod firmware;
   |         ^^^^^^^^
   note: the item is gated here
   --> rust/kernel/lib.rs:93:1
   |
   93 | #[cfg(CONFIG_RUST_FW_LOADER_ABSTRACTIONS)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
--
>> error[E0433]: failed to resolve: could not find `module_firmware` in `kernel`
   --> drivers/gpu/nova-core/nova_core.rs:30:9
   |
   30 | kernel::module_firmware!(firmware::ModInfoBuilder);
   |         ^^^^^^^^^^^^^^^ could not find `module_firmware` in `kernel`

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for NOVA_CORE
   Depends on [n]: HAS_IOMEM [=y] && 64BIT [=y] && PCI [=y] && RUST [=y] && RUST_FW_LOADER_ABSTRACTIONS [=n]
   Selected by [y]:
   - DRM_NOVA [=y] && HAS_IOMEM [=y] && 64BIT [=y] && DRM [=y]=y [=y] && PCI [=y] && RUST [=y]

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