linux-kernel - Re: [PATCH 06/13] rust: start supporting several compiler versions

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Message-ID: <87ed8a8ka3.fsf@metaspace.dk>
Date: Wed, 03 Jul 2024 17:20:37 +0000
From: Andreas Hindborg <nmi@...aspace.dk>
To: Miguel Ojeda <ojeda@...nel.org>
Cc: Wedson Almeida Filho <wedsonaf@...il.com>, 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 <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...sung.com>, Alice Ryhl <aliceryhl@...gle.com>, rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, patches@...ts.linux.dev, Jonathan Corbet <corbet@....net>, workflows@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH 06/13] rust: start supporting several compiler versions

Miguel Ojeda <ojeda@...nel.org> writes:

[...]

> diff --git a/scripts/rust_is_available.sh b/scripts/rust_is_available.sh
> index 117018946b57..67cb900124cc 100755
> --- a/scripts/rust_is_available.sh
> +++ b/scripts/rust_is_available.sh
> @@ -117,14 +117,6 @@ if [ "$rust_compiler_cversion" -lt "$rust_compiler_min_cversion" ]; then
>  	echo >&2 "***"
>  	exit 1
>  fi
> -if [ "$rust_compiler_cversion" -gt "$rust_compiler_min_cversion" ]; then
> -	echo >&2 "***"
> -	echo >&2 "*** Rust compiler '$RUSTC' is too new. This may or may not work."
> -	echo >&2 "***   Your version:     $rust_compiler_version"
> -	echo >&2 "***   Expected version: $rust_compiler_min_version"
> -	echo >&2 "***"
> -	warning=1
> -fi

This does not set a max version. Will older versions of the kernel
always compile with newer releases of `rustc`?

Best regards,
Andreas