Re: [PATCH v3 10/16] rust: block: add block related constants

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On Fri, Jul 11, 2025 at 01:43:11PM +0200, Andreas Hindborg wrote:
> Add a few block subsystem constants to the rust `kernel::block` name space.
> This makes it easier to access the constants from rust code.
> 
> Signed-off-by: Andreas Hindborg <a.hindborg@xxxxxxxxxx>
> ---
>  rust/kernel/block.rs | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/rust/kernel/block.rs b/rust/kernel/block.rs
> index 150f710efe5b..7461adf4d7e0 100644
> --- a/rust/kernel/block.rs
> +++ b/rust/kernel/block.rs
> @@ -3,3 +3,15 @@
>  //! Types for working with the block layer.
>  
>  pub mod mq;
> +
> +/// Bit mask for masking out [`SECTOR_SIZE`]
> +pub const SECTOR_MASK: u32 = bindings::SECTOR_MASK;
> +
> +/// Sectors are size `1 << SECTOR_SHIFT`.
> +pub const SECTOR_SHIFT: u32 = bindings::SECTOR_SHIFT;
> +
> +/// Size of a sector.
> +pub const SECTOR_SIZE: u32 = bindings::SECTOR_SIZE;
> +
> +/// Power of two difference in size of a page and size of a sector.
> +pub const PAGE_SECTORS_SHIFT: u32 = bindings::PAGE_SECTORS_SHIFT;

I was looking for the user to double-check whether u32 was the right
choice, but I can't find it. It looks like you don't use these yet?

Alice




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