linux-kernel - Re: [PATCH] rust: fix bindgen build error with fstrict-flex-arrays

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Date:   Tue, 15 Aug 2023 14:10:12 +0200
From:   Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To:     Andrea Righi <andrea.righi@...onical.com>
Cc:     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>,
        "Gustavo A . R . Silva" <gustavoars@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Masahiro Yamada <masahiroy@...nel.org>,
        rust-for-linux@...r.kernel.org, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>
Subject: Re: [PATCH] rust: fix bindgen build error with fstrict-flex-arrays

On Tue, Aug 15, 2023 at 2:06 PM Miguel Ojeda
<miguel.ojeda.sandonis@...il.com> wrote:
>
> to make GCC and Clang (as well as Clang `=3` vs. Clang without the
> flag) to compile but disagree on the size:

To be clear: Clang `=3` vs. Clang without the flag should not be a
problem for us because under `CC_IS_CLANG` we pass the flags unaltered
to bindgen.

But for GCC-built kernels with Rust enabled, the disagreement above
could be a problem.

Cheers,
Miguel