Re: [PATCH v3 6/7] rust: alloc: layout: implement ArrayLayout::size()

[Daniel Almeida <daniel.almeida@collabora.com>]

> On 8 Aug 2025, at 15:10, Danilo Krummrich <dakr@kernel.org> wrote:
> 
> Provide a convenience method for ArrayLayout to calculate the size of
> the ArrayLayout in bytes.
> 
> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
> Reviewed-by: Alice Ryhl <aliceryhl@google.com>
> Signed-off-by: Danilo Krummrich <dakr@kernel.org>
> ---
> rust/kernel/alloc/layout.rs | 5 +++++
> 1 file changed, 5 insertions(+)
> 
> diff --git a/rust/kernel/alloc/layout.rs b/rust/kernel/alloc/layout.rs
> index 93ed514f7cc7..5c3db8e9f930 100644
> --- a/rust/kernel/alloc/layout.rs
> +++ b/rust/kernel/alloc/layout.rs
> @@ -98,6 +98,11 @@ pub const fn len(&self) -> usize {
>     pub const fn is_empty(&self) -> bool {
>         self.len == 0
>     }
> +
> +    /// Returns the size of the [`ArrayLayout`] in bytes.
> +    pub const fn size(&self) -> usize {
> +        self.len() * size_of::<T>()
> +    }
> }
> 
> impl<T> From<ArrayLayout<T>> for Layout {
> -- 
> 2.50.1
> 
> 

Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>