linux-kernel - Re: make ARCH=arm64 rustdoc fails on a x86 host with SCS enabled

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Message-ID: <CANiq72=d-X8WiDqBfVChaXUR0Opx+N6T__iiS8WHKdh3v9y+zg@mail.gmail.com>
Date: Sun, 27 Jul 2025 11:25:50 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: 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>, 
	Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, rust-for-linux@...r.kernel.org, 
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: make ARCH=arm64 rustdoc fails on a x86 host with SCS enabled

On Tue, Jul 22, 2025 at 2:40 PM Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> Thanks, I can reproduce it -- I will send a patch.

It turns out it is a Rust compiler (`rustdoc`) bug -- filled:

    https://github.com/rust-lang/rust/issues/144521

I also sent a fix upstream, with a test similar to the kernel case:

    https://github.com/rust-lang/rust/pull/144523

And this is the patch to workaround it in the kernel for the time being:

    https://lore.kernel.org/rust-for-linux/20250727092317.2930617-1-ojeda@kernel.org/

Cheers,
Miguel