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Date:   Tue, 4 Apr 2023 14:11:16 +0100
From:   Gary Guo <gary@garyguo.net>
To:     Benno Lossin <y86-dev@protonmail.com>,
        Alice Ryhl <aliceryhl@google.com>
Cc:     Miguel Ojeda <ojeda@kernel.org>,
        Alex Gaynor <alex.gaynor@gmail.com>,
        Wedson Almeida Filho <wedsonaf@gmail.com>,
        Boqun Feng <boqun.feng@gmail.com>,
        =?UTF-8?B?QmrDtnJu?= Roy Baron <bjorn3_gh@protonmail.com>,
        Alice Ryhl <alice@ryhl.io>, rust-for-linux@vger.kernel.org,
        linux-kernel@vger.kernel.org, patches@lists.linux.dev,
        Andreas Hindborg <a.hindborg@samsung.com>
Subject: Re: [PATCH v5 01/15] rust: enable the `pin_macro` feature
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On Mon, 03 Apr 2023 15:44:46 +0000
Benno Lossin <y86-dev@protonmail.com> wrote:

> This feature enables the use of the `pin!` macro for the `stack_pin_init!`
> macro. This feature is already stabilized in Rust version 1.68.
> 
> Signed-off-by: Benno Lossin <y86-dev@protonmail.com>
> Cc: Gary Guo <gary@garyguo.net>
> Cc: Andreas Hindborg <a.hindborg@samsung.com>
> Cc: Alice Ryhl <aliceryhl@google.com>
> Acked-by: Boqun Feng <boqun.feng@gmail.com>

Reviewed-by: Gary Guo <gary@garyguo.net>

> ---
>  rust/kernel/lib.rs     | 1 +
>  scripts/Makefile.build | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs
> index 223564f9f0cc..4317b6d5f50b 100644
> --- a/rust/kernel/lib.rs
> +++ b/rust/kernel/lib.rs
> @@ -17,6 +17,7 @@
>  #![feature(core_ffi_c)]
>  #![feature(dispatch_from_dyn)]
>  #![feature(generic_associated_types)]
> +#![feature(pin_macro)]
>  #![feature(receiver_trait)]
>  #![feature(unsize)]
> 
> diff --git a/scripts/Makefile.build b/scripts/Makefile.build
> index 76323201232a..ba4102b9d94d 100644
> --- a/scripts/Makefile.build
> +++ b/scripts/Makefile.build
> @@ -277,7 +277,7 @@ $(obj)/%.lst: $(src)/%.c FORCE
>  # Compile Rust sources (.rs)
>  # ---------------------------------------------------------------------------
> 
> -rust_allowed_features := core_ffi_c
> +rust_allowed_features := core_ffi_c,pin_macro
> 
>  rust_common_cmd = \
>  	RUST_MODFILE=$(modfile) $(RUSTC_OR_CLIPPY) $(rust_flags) \
> --
> 2.39.2
> 
>