linux-kernel - Re: Mainline loongarch64 defconfig+Rust build error

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aTodMdEWuXQXuLyy@google.com>
Date: Thu, 11 Dec 2025 01:24:01 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: hev <r@....cc>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>, Huacai Chen <chenhuacai@...nel.org>, 
	WANG Xuerui <kernel@...0n.name>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	"Arve Hjønnevåg" <arve@...roid.com>, Todd Kjos <tkjos@...roid.com>, 
	Christian Brauner <christian@...uner.io>, Carlos Llamas <cmllamas@...gle.com>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Danilo Krummrich <dakr@...nel.org>, 
	Benno Lossin <lossin@...nel.org>, Boqun Feng <boqun.feng@...il.com>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Trevor Gross <tmgross@...ch.edu>, loongarch@...ts.linux.dev, 
	rust-for-linux <rust-for-linux@...r.kernel.org>, 
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Mainline loongarch64 defconfig+Rust build error

On Tue, Dec 09, 2025 at 08:20:46PM +0800, hev wrote:
> On Tue, Dec 9, 2025 at 6:58 PM Miguel Ojeda
> <miguel.ojeda.sandonis@...il.com> wrote:
> >
> > Hi all,
> >
> > I am seeing in mainline loongarch64 defconfig+Rust the following build
> > error [1].
> >
> > Cheers,
> > Miguel
> >
> > [1]
> >
> >  error[E0425]: cannot find value `compat_ptr_ioctl` in crate `bindings`
> >      --> drivers/android/binder/rust_binder_main.rs:317:38
> >       |
> > 317   |         compat_ioctl: Some(bindings::compat_ptr_ioctl),
> 
> It looks like the rust binder driver also needs to handle
> !CONFIG_COMPAT. Here's a reference for that:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/rust/kernel/miscdevice.rs?h=v6.18#n410

Yeah, it just needs a `#[cfg(CONFIG_COMPAT)] like miscdevice. Do you
want to add it? Otherwise I'll get to it soon.

Alice