[boqun:rust-atomic-impl 4/11] warning: unused import: `core::cell::UnsafeCell`

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/boqun/linux.git rust-atomic-impl
head:   9908e69eba39eeef235e409a753621914c6e8926
commit: 1c3238898188d153f6a0c21cf85f8259ef0ab8a4 [4/11] rust: sync: atomic: Add generic atomics
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20250717/202507171221.aJFPI28p-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/20250717/202507171221.aJFPI28p-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507171221.aJFPI28p-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: unused import: `core::cell::UnsafeCell`
   --> rust/kernel/sync/atomic/generic.rs:8:5
   |
   8 | use core::cell::UnsafeCell;
   |     ^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

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