error[E0560]: struct `bindings::file_operations` has no field named `mmap`

[kernel test robot]

Hi Alice,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3f9f0252130e7dd60d41be0802bf58f6471c691d
commit: f8c78198816f04619da6eebfc5b67741bff56325 rust: miscdevice: add mmap support
date:   7 months ago
config: arm-randconfig-r121-20251201 (https://download.01.org/0day-ci/archive/20251203/202512031542.URVb8ITS-lkp@xxxxxxxxx/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project b3428bb966f1de8aa48375ffee0eba04ede133b7)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251203/202512031542.URVb8ITS-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/202512031542.URVb8ITS-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> error[E0560]: struct `bindings::file_operations` has no field named `mmap`
   --> rust/kernel/miscdevice.rs:338:9
   |
   338 |         mmap: if T::HAS_MMAP { Some(Self::mmap) } else { None },
   |         ^^^^ `bindings::file_operations` does not have this field
   |
   = note: available fields are: `_address`

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