Re: [PATCH 01/12] rust: io: add Region::try_subregion

[Eliot Courtney]

On Wed Aug 5, 2026 at 7:43 PM JST, Gary Guo wrote:
> On Wed Aug 5, 2026 at 6:44 AM BST, Eliot Courtney wrote:
>> Add a helper to get a subregion of an IO view fallibly.
>>
>> Signed-off-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
>> ---
>>  rust/kernel/io.rs | 31 ++++++++++++++++++++++++++++++-
>>  1 file changed, 30 insertions(+), 1 deletion(-)
>
> Looks like the case where you need this don't actually require a `Region`
> (dynamically sized type) but rather a fixed size window?
>
> In that case the next version of
> https://lore.kernel.org/rust-for-linux/20260721-typed_register-v1-0-452d72b60262@xxxxxxxxxxx/
> will contain what you need.

Yeah you are right. I think a previous version I was working on needed
runtime lengths. But yes it should work with your compile time
subregion stuff.