diff options
| -rw-r--r-- | rust/kernel/init.rs | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/rust/kernel/init.rs b/rust/kernel/init.rs index 7fd1ea8265a5..8bbd5e3398fc 100644 --- a/rust/kernel/init.rs +++ b/rust/kernel/init.rs @@ -1418,17 +1418,14 @@ impl_zeroable! { // SAFETY: `T: Zeroable` and `UnsafeCell` is `repr(transparent)`. {<T: ?Sized + Zeroable>} UnsafeCell<T>, - // SAFETY: All zeros is equivalent to `None` (option layout optimization guarantee). + // SAFETY: All zeros is equivalent to `None` (option layout optimization guarantee: + // https://doc.rust-lang.org/stable/std/option/index.html#representation). Option<NonZeroU8>, Option<NonZeroU16>, Option<NonZeroU32>, Option<NonZeroU64>, Option<NonZeroU128>, Option<NonZeroUsize>, Option<NonZeroI8>, Option<NonZeroI16>, Option<NonZeroI32>, Option<NonZeroI64>, Option<NonZeroI128>, Option<NonZeroIsize>, - - // SAFETY: All zeros is equivalent to `None` (option layout optimization guarantee). - // - // In this case we are allowed to use `T: ?Sized`, since all zeros is the `None` variant. - {<T: ?Sized>} Option<NonNull<T>>, - {<T: ?Sized>} Option<KBox<T>>, + {<T>} Option<NonNull<T>>, + {<T>} Option<KBox<T>>, // SAFETY: `null` pointer is valid. // |