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Message-ID: <20240529214532.7804a7d2.gary@garyguo.net>
Date: Wed, 29 May 2024 21:45:32 +0100
From: Gary Guo <gary@...yguo.net>
To: Masahiro Yamada <masahiroy@...nel.org>, Nathan Chancellor
 <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>, Andrew Morton
 <akpm@...ux-foundation.org>, Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor
 <alex.gaynor@...il.com>, Wedson Almeida Filho <wedsonaf@...il.com>, Boqun
 Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com>, Benno Lossin
 <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...sung.com>, Alice
 Ryhl <aliceryhl@...gle.com>, Nick Desaulniers <ndesaulniers@...gle.com>,
 Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
 rust-for-linux@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [RFC PATCH 2/2] kbuild: rust: provide an option to inline C
 helpers into Rust

On Wed, 29 May 2024 21:28:15 +0100
Gary Guo <gary@...yguo.net> wrote:

>  Makefile               |  4 +++-
>  lib/Kconfig.debug      | 10 ++++++++++
>  rust/Makefile          | 34 ++++++++++++++++++++++++++++++----
>  rust/exports.c         |  3 +++
>  rust/helpers.c         | 41 +++++++++++++++++++++--------------------
>  scripts/Makefile.build |  5 ++++-
>  6 files changed, 71 insertions(+), 26 deletions(-)
>
> diff --git a/rust/helpers.c b/rust/helpers.c
> index 895f4b696962..3abf96f14148 100644
> --- a/rust/helpers.c
> +++ b/rust/helpers.c
> @@ -32,18 +32,19 @@
>  #include <linux/spinlock.h>
>  #include <linux/wait.h>
>  #include <linux/workqueue.h>
> +#include "helpers.h"

I made a mistake during rebase and forgot to include rust/helpers.h in
this patch. The content is

```
#ifndef RUST_HELPERS_H
#define RUST_HELPERS_H

#include <linux/compiler_types.h>

#ifdef __BINDGEN__
#define __rust_helper
#else
#define __rust_helper inline
#endif

#endif
```

I'll include this in patch v2 but would like to get a general feedback
before sending another version.





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