linux-kernel - Re: [PATCH] rust: add `assert

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Message-Id: <DAGZDB274O7S.1WW1Y530WRYVY@kernel.org>
Date: Sun, 08 Jun 2025 09:41:15 +0200
From: "Benno Lossin" <lossin@...nel.org>
To: "Christian Schrefl" <chrisi.schrefl@...il.com>, "Miguel Ojeda"
 <ojeda@...nel.org>, "Alex Gaynor" <alex.gaynor@...il.com>, "Boqun Feng"
 <boqun.feng@...il.com>, "Gary Guo" <gary@...yguo.net>,
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, "Andreas
 Hindborg" <a.hindborg@...nel.org>, "Alice Ryhl" <aliceryhl@...gle.com>,
 "Trevor Gross" <tmgross@...ch.edu>, "Danilo Krummrich" <dakr@...nel.org>
Cc: <linux-kernel@...r.kernel.org>, <rust-for-linux@...r.kernel.org>
Subject: Re: [PATCH] rust: add `assert_sync` function

On Sun Jun 8, 2025 at 1:38 AM CEST, Christian Schrefl wrote:
> I don't see any point in paying the compile time hit for a proc macro.
>
> The Error is not that bad, just a bit worse. I just don't really see the
> point since this is only really need for marker traits and realistically
> only for `Send` and `Sync`. Also the macro would create a function
> definition for every invocation which would be a (very) small compile time
> hit. So I think that we should just add the `Send` and `Sync` functions for
> now and reconsider changing to a macro once/if more than these two is
> actually needed. 

Sounds good.

---
Cheers,
Benno