linux-kernel - Re: next-20250915: error[E0425]: cannot find function `atomic_read

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Message-ID: <e734f4e7-914e-4350-a6b5-968eff64af57@heusel.eu>
Date: Wed, 17 Sep 2025 18:30:22 +0200
From: Christian Heusel <christian@...sel.eu>
To: Thorsten Leemhuis <linux@...mhuis.info>
Cc: Dan Carpenter <dan.carpenter@...aro.org>, 
	Mark Brown <broonie@...nel.org>, Naresh Kamboju <naresh.kamboju@...aro.org>, 
	rust-for-linux@...r.kernel.org, open list <linux-kernel@...r.kernel.org>, 
	Linux Regressions <regressions@...ts.linux.dev>, lkft-triage@...ts.linaro.org, Miguel Ojeda <ojeda@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, 
	Peter Zijlstra <peterz@...radead.org>, Alice Ryhl <aliceryhl@...gle.com>, 
	Benno Lossin <lossin@...nel.org>, Elle Rhumsaa <elle@...thered-steel.dev>, 
	Arnd Bergmann <arnd@...db.de>, Anders Roxell <anders.roxell@...aro.org>, 
	Ben Copeland <benjamin.copeland@...aro.org>
Subject: Re: next-20250915: error[E0425]: cannot find function
 `atomic_read_acquire` in crate `bindings`

On 25/09/17 09:58AM, Thorsten Leemhuis wrote:
> On 17.09.25 09:42, Dan Carpenter wrote:
> > On Tue, Sep 16, 2025 at 06:46:06PM +0200, Christian Heusel wrote:
> >> On 25/09/16 09:56PM, Naresh Kamboju wrote:
> >>> On Tue, 16 Sept 2025 at 11:17, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> >>>>
> >>>> The following build warnings / errors noticed on the arm arm64 and x86_64
> >>>> with rust config build on the Linux next-20250915 tag.
> >>>>
> >>>> First seen on next-20250915
> >>>> Good: next-20250912
> >>>> Bad: next-20250915
> > [...]
> >>>> Build regression: next-20250915: error[E0425]: cannot find function
> >>>> `atomic_read_acquire` in crate `bindings`
> >>>
> >>> Anders bisected this build regressions and found,
> >>>
> >>> # first bad commit:
> >>>  [eb57133305f61b612252382d0c1478bba7f57b67]
> >>>  rust: sync: Add basic atomic operation mapping framework
> >>
> >> Is this still an issue on next-20250916?
> 
> FWIW, I ran into this on next-20250915 and it afaics was fixed for
> next-20250916.
> 
> >> As far as I can tell this has
> >> been fixed, but now there is another rust build issue, see
> >> https://lore.kernel.org/regressions/0fee48bb-7411-4414-b4e7-395a8c3d0f6c@heusel.eu/
> >> for more information.
> > 
> > next-20250916 still fails but with a different Rust issue.
> 
> Ran into that that merge mistake, too, but that can be fixed by the
> patch Christian linked to above  -- and I expect Mark (now CCed) has
> seen it and will resolve this with today's -next.

The issue was indeed resolved with todays next release :)

> > [...]
> 
> Ciao, Thorsten

Thanks everyone for their input!

Cheers,
Chris

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