rust/helpers/mutex.c:11:6: sparse: sparse: symbol 'rust_helper___mutex_init' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7eef7e306d3c40a0c5b9ff6adc9b273cc894dbd5
commit: d065cc76054d21e48a839a2a19ba99dbc51a4d11 rust: mutex: fix __mutex_init() usage in case of PREEMPT_RT
date:   9 weeks ago
config: um-randconfig-r111-20241126 (https://download.01.org/0day-ci/archive/20241126/202411262123.zw9MlOvN-lkp@xxxxxxxxx/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241126/202411262123.zw9MlOvN-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411262123.zw9MlOvN-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
>> rust/helpers/mutex.c:11:6: sparse: sparse: symbol 'rust_helper___mutex_init' was not declared. Should it be static?
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/helpers.c: note: in included file:
   rust/helpers/spinlock.c:16:6: sparse: sparse: context imbalance in 'rust_helper_spin_lock' - wrong count at exit
   rust/helpers/spinlock.c:21:6: sparse: sparse: context imbalance in 'rust_helper_spin_unlock' - unexpected unlock

vim +/rust_helper___mutex_init +11 rust/helpers/mutex.c

    10	
  > 11	void rust_helper___mutex_init(struct mutex *mutex, const char *name,

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