Changes made in v6:
  - Added `unpinned_new` constructor for `WwClass` and updated global macros.
  - Changed all tests (and docs) to use Arc/KBox instead of `stack_pin_init`
    for `WwMutex` and `WwAcquireCtx`.
  - Added `LockKind` and `lock_common` helper to unify locking logic.
  - Added context-based and context-free locking functions for `WwMutex`.
  - Added `ww_mutex/exec` module, a high-level API with auto `EDEADLK`
    handling mechanism.

Onur Özkan (7):
  rust: add C wrappers for ww_mutex inline functions
  rust: implement `WwClass` for ww_mutex support
  rust: implement `WwMutex`, `WwAcquireCtx` and `WwMutexGuard`
  add KUnit coverage on Rust ww_mutex implementation
  rust: ww_mutex: add context-free locking functions
  rust: ww_mutex/exec: add high-level API
  add KUnit coverage on ww_mutex/exec implementation

 rust/helpers/helpers.c                 |   1 +
 rust/helpers/ww_mutex.c                |  39 ++
 rust/kernel/error.rs                   |   1 +
 rust/kernel/sync/lock.rs               |   1 +
 rust/kernel/sync/lock/ww_mutex.rs      | 634 +++++++++++++++++++++++++
 rust/kernel/sync/lock/ww_mutex/exec.rs | 324 +++++++++++++
 6 files changed, 1000 insertions(+)
 create mode 100644 rust/helpers/ww_mutex.c
 create mode 100644 rust/kernel/sync/lock/ww_mutex.rs
 create mode 100644 rust/kernel/sync/lock/ww_mutex/exec.rs

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2.50.0