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

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Message-ID: <aMmg97aXBLMb_4a-@tardis-2.local>
Date: Tue, 16 Sep 2025 19:40:07 +0200
From: Boqun Feng <boqun.feng@...il.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: 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>,
	Peter Zijlstra <peterz@...radead.org>,
	Alice Ryhl <aliceryhl@...gle.com>, Benno Lossin <lossin@...nel.org>,
	Elle Rhumsaa <elle@...thered-steel.dev>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	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 Tue, Sep 16, 2025 at 06:40:42PM +0200, Miguel Ojeda wrote:
> On Tue, Sep 16, 2025 at 6:26 PM Naresh Kamboju
> <naresh.kamboju@...aro.org> wrote:
> >
> > Anders bisected this build regressions and found,
> >
> > # first bad commit:
> >  [eb57133305f61b612252382d0c1478bba7f57b67]
> >  rust: sync: Add basic atomic operation mapping framework
> 
> That is very useful, thanks.
> 

Yeah, if this is the bad commit, I believe the issue has been fixed.
Because that commit in linue-next indicated the problematic locking/core
branck of tip was used:

eb57133305f6 rust: sync: Add basic atomic operation mapping framework
76eeb9b8de98 (tag: v6.17-rc5) Linux 6.17-rc5

one patch was missing in that version as I mentioned here [1]

[1]: https://lore.kernel.org/lkml/aMWMVQiZxE_mv7va@tardis.local/

Regards,
Boqun

> We (Boqun and others) are in the middle of Kangrejos now, so we may
> take a bit to reply, sorry.
> 
> Cheers,
> Miguel