diff options
Diffstat (limited to 'rust/kernel/lib.rs')
| -rw-r--r-- | rust/kernel/lib.rs | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index 6e9287136cac..909d305d0be8 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -205,7 +205,7 @@ fn panic(info: &core::panic::PanicInfo<'_>) -> ! { /// } /// /// let test = Test { a: 10, b: 20 }; -/// let b_ptr = &test.b; +/// let b_ptr: *const _ = &test.b; /// // SAFETY: The pointer points at the `b` field of a `Test`, so the resulting pointer will be /// // in-bounds of the same allocation as `b_ptr`. /// let test_alias = unsafe { container_of!(b_ptr, Test, b) }; @@ -214,9 +214,8 @@ fn panic(info: &core::panic::PanicInfo<'_>) -> ! { #[macro_export] macro_rules! container_of { ($ptr:expr, $type:ty, $($f:tt)*) => {{ - let ptr = $ptr as *const _ as *const u8; let offset: usize = ::core::mem::offset_of!($type, $($f)*); - ptr.sub(offset) as *const $type + $ptr.byte_sub(offset).cast::<$type>() }} } |