linux-kernel - Re: [PATCH 2/3] rust: dma: convert the read/write macros to return Result

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Message-ID: <87y0wl4cq3.fsf@kernel.org>
Date: Mon, 31 Mar 2025 14:16:20 +0200
From: Andreas Hindborg <a.hindborg@...nel.org>
To: "Abdiel Janulgue" <abdiel.janulgue@...il.com>
Cc: "Miguel Ojeda" <miguel.ojeda.sandonis@...il.com>,  <ojeda@...nel.org>,
  "Danilo Krummrich" <dakr@...nel.org>,  "Daniel Almeida"
 <daniel.almeida@...labora.com>,  "Robin Murphy" <robin.murphy@....com>,
  "Alex Gaynor" <alex.gaynor@...il.com>,  "Boqun Feng"
 <boqun.feng@...il.com>,  "Gary Guo" <gary@...yguo.net>,  Björn Roy Baron
 <bjorn3_gh@...tonmail.com>,  "Benno Lossin" <benno.lossin@...ton.me>,
  "Alice Ryhl" <aliceryhl@...gle.com>,  "Trevor Gross" <tmgross@...ch.edu>,
  "open list:DMA MAPPING HELPERS DEVICE DRIVER API [RUST]"
 <rust-for-linux@...r.kernel.org>,  "Marek Szyprowski"
 <m.szyprowski@...sung.com>,  "open list:DMA MAPPING HELPERS"
 <iommu@...ts.linux.dev>,  "open list" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] rust: dma: convert the read/write macros to return
 Result

"Abdiel Janulgue" <abdiel.janulgue@...il.com> writes:

> On 26/03/2025 22:48, Miguel Ojeda wrote:
>> On Wed, Mar 26, 2025 at 9:13 PM Abdiel Janulgue
>> <abdiel.janulgue@...il.com> wrote:
>>>
>>> As suggested by Andreas Hindborg, we could do better here by
>>> having the macros return `Result`, so that we don't have to wrap
>>> these calls in a closure for validation which is confusing.
>>>
>>> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@...il.com>
>>
>> I would suggest:
>>
>> Suggested-by: Andreas Hindborg <a.hindborg@...nel.org>
>> Link: https://lore.kernel.org/rust-for-linux/87h63qhz4q.fsf@kernel.org/
>>
>> Maybe also consider if Co-developed-by etc. makes sense since he
>> provided the diff.
>
> Thanks! Andreas, would you be okay if I add the Co-developed-by tag?

Yes, fine with me 👍


Best regards,
Andreas Hindborg