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Date: Tue, 29 Apr 2025 22:55:05 +0200
From: Danilo Krummrich <dakr@kernel.org>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Miguel Ojeda <ojeda@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Alex Gaynor <alex.gaynor@gmail.com>,
	Boqun Feng <boqun.feng@gmail.com>, Gary Guo <gary@garyguo.net>,
	=?iso-8859-1?Q?Bj=F6rn?= Roy Baron <bjorn3_gh@protonmail.com>,
	Benno Lossin <benno.lossin@proton.me>,
	Andreas Hindborg <a.hindborg@kernel.org>,
	Alice Ryhl <aliceryhl@google.com>, Trevor Gross <tmgross@umich.edu>,
	rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
	patches@lists.linux.dev
Subject: Re: [PATCH] rust: device: allow `dead_code` for `Device<>::parent()`
Message-ID: <aBE8qQrpXOfru_K3@pollux>
References: <20250429150346.392050-1-ojeda@kernel.org>
 <aBEXUG7QH0ymRuLm@pollux>
 <CANiq72nf86+OcMTNPQVnF=pXuaJVw0bFixMxs6qwS5vTh7RWxw@mail.gmail.com>
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In-Reply-To: <CANiq72nf86+OcMTNPQVnF=pXuaJVw0bFixMxs6qwS5vTh7RWxw@mail.gmail.com>

On Tue, Apr 29, 2025 at 09:05:21PM +0200, Miguel Ojeda wrote:
> On Tue, Apr 29, 2025 at 8:15 PM Danilo Krummrich <dakr@kernel.org> wrote:
> >
> > Maybe there is a much better solution I don't know about.
> 
> There is `cfg_attr` for that, and we use it in a couple places, e.g.
> 
>     #[cfg_attr(not(CONFIG_AUXILIARY_BUS), expect(dead_code))]

Well, that is much better, thanks!

I prefer this then, I really want to catch if some other code starts using this.

- Danilo