linux-kernel - drivers/android/binder/rust_binderfs.c:51:6: sparse: sparse: symbol 'rust_binder_devices_param' was not declared. Should it be static?

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Message-ID: <202511240909.vI2KZ96Z-lkp@intel.com>
Date: Mon, 24 Nov 2025 09:31:28 +0800
From: kernel test robot <lkp@...el.com>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Matt Gilbride <mattgilbride@...gle.com>
Subject: drivers/android/binder/rust_binderfs.c:51:6: sparse: sparse: symbol
 'rust_binder_devices_param' was not declared. Should it be static?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   d0e88704d96ca0df77717320fec4ebabe42c8a94
commit: eafedbc7c050c44744fbdf80bdf3315e860b7513 rust_binder: add Rust Binder driver
date:   9 weeks ago
config: x86_64-randconfig-r131-20251123 (https://download.01.org/0day-ci/archive/20251124/202511240909.vI2KZ96Z-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/20251124/202511240909.vI2KZ96Z-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/202511240909.vI2KZ96Z-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/android/binder/rust_binderfs.c:51:6: sparse: sparse: symbol 'rust_binder_devices_param' was not declared. Should it be static?

vim +/rust_binder_devices_param +51 drivers/android/binder/rust_binderfs.c

    50	
  > 51	char *rust_binder_devices_param = CONFIG_ANDROID_BINDER_DEVICES;
    52	module_param_named(rust_devices, rust_binder_devices_param, charp, 0444);
    53	

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