linux-kernel - Re: [PATCH 1/5] rust: iov: add iov_iter abstractions for ITER

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Message-ID: <877c4gen6w.fsf@kernel.org>
Date: Sat, 22 Mar 2025 23:05:11 +0100
From: Andreas Hindborg <a.hindborg@...nel.org>
To: "Miguel Ojeda" <miguel.ojeda.sandonis@...il.com>
Cc: "Ralf Jung" <post@...fj.de>, "Alice Ryhl" <aliceryhl@...gle.com>,
	"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	"Alexander Viro" <viro@...iv.linux.org.uk>,
	"Arnd Bergmann" <arnd@...db.de>,  "Miguel Ojeda" <ojeda@...nel.org>,
	"Boqun Feng" <boqun.feng@...il.com>,  "Gary Guo" <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	"Benno Lossin" <benno.lossin@...ton.me>,
	"Trevor Gross" <tmgross@...ch.edu>,  "Danilo Krummrich" <dakr@...nel.org>,
	"Matthew Maurer" <mmaurer@...gle.com>,  "Lee Jones" <lee@...nel.org>,
	<linux-kernel@...r.kernel.org>,  <rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH 1/5] rust: iov: add iov_iter abstractions for ITER_SOURCE

"Miguel Ojeda" <miguel.ojeda.sandonis@...il.com> writes:

> On Wed, Mar 19, 2025 at 7:54 PM Andreas Hindborg <a.hindborg@...nel.org> wrote:
>>
>> Don't we have some kind of `build_assert` macro to do this? If not,
>> maybe we should.
>
> `static_assert!` is the one (`build_assert!` is the other one, which
> is a heavier hammer that should only be used if really needed).
>
> Though our `static_assert!` does not have support for an (optional)
> message -- we could add that, perhaps as a good first issue. In this
> case it is not a big deal either way.
>
>> How did you arrive at this conclusion? In the discussions with Ralph on
>
> Ralf?

Sorry, misspell. Ralf Jung, added to CC.


Best regards,
Andreas Hindborg