1 files changed, 0 insertions, 68 deletions
diff --git a/rust/kernel/types.rs b/rust/kernel/types.rs
index 28d9e5ea3df4..085e8076f078 100644
--- a/rust/kernel/types.rs
+++ b/rust/kernel/types.rs
@@ -479,71 +479,3 @@ pub enum Either<L, R> {
     /// Constructs an instance of [`Either`] containing a value of type `R`.
     Right(R),
 }
-
-/// Types for which any bit pattern is valid.
-///
-/// Not all types are valid for all values. For example, a `bool` must be either zero or one, so
-/// reading arbitrary bytes into something that contains a `bool` is not okay.
-///
-/// It's okay for the type to have padding, as initializing those bytes has no effect.
-///
-/// # Safety
-///
-/// All bit-patterns must be valid for this type. This type must not have interior mutability.
-pub unsafe trait FromBytes {}
-
-macro_rules! impl_frombytes {
-    ($($({$($generics:tt)*})? $t:ty, )*) => {
-        // SAFETY: Safety comments written in the macro invocation.
-        $(unsafe impl$($($generics)*)? FromBytes for $t {})*
-    };
-}
-
-impl_frombytes! {
-    // SAFETY: All bit patterns are acceptable values of the types below.
-    u8, u16, u32, u64, usize,
-    i8, i16, i32, i64, isize,
-
-    // SAFETY: If all bit patterns are acceptable for individual values in an array, then all bit
-    // patterns are also acceptable for arrays of that type.
-    {<T: FromBytes>} [T],
-    {<T: FromBytes, const N: usize>} [T; N],
-}
-
-/// Types that can be viewed as an immutable slice of initialized bytes.
-///
-/// If a struct implements this trait, then it is okay to copy it byte-for-byte to userspace. This
-/// means that it should not have any padding, as padding bytes are uninitialized. Reading
-/// uninitialized memory is not just undefined behavior, it may even lead to leaking sensitive
-/// information on the stack to userspace.
-///
-/// The struct should also not hold kernel pointers, as kernel pointer addresses are also considered
-/// sensitive. However, leaking kernel pointers is not considered undefined behavior by Rust, so
-/// this is a correctness requirement, but not a safety requirement.
-///
-/// # Safety
-///
-/// Values of this type may not contain any uninitialized bytes. This type must not have interior
-/// mutability.
-pub unsafe trait AsBytes {}
-
-macro_rules! impl_asbytes {
-    ($($({$($generics:tt)*})? $t:ty, )*) => {
-        // SAFETY: Safety comments written in the macro invocation.
-        $(unsafe impl$($($generics)*)? AsBytes for $t {})*
-    };
-}
-
-impl_asbytes! {
-    // SAFETY: Instances of the following types have no uninitialized portions.
-    u8, u16, u32, u64, usize,
-    i8, i16, i32, i64, isize,
-    bool,
-    char,
-    str,
-
-    // SAFETY: If individual values in an array have no uninitialized portions, then the array
-    // itself does not have any uninitialized portions either.
-    {<T: AsBytes>} [T],
-    {<T: AsBytes, const N: usize>} [T; N],
-}