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Date: Sat, 14 Mar 2026 09:07:03 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Markus Probst <markus.probst@posteo.de>
Cc: Rob Herring <robh@kernel.org>, Jiri Slaby <jirislaby@kernel.org>,
	Miguel Ojeda <ojeda@kernel.org>, Gary Guo <gary@garyguo.net>,
	=?iso-8859-1?Q?Bj=F6rn?= Roy Baron <bjorn3_gh@protonmail.com>,
	Benno Lossin <lossin@kernel.org>,
	Andreas Hindborg <a.hindborg@kernel.org>,
	Alice Ryhl <aliceryhl@google.com>, Trevor Gross <tmgross@umich.edu>,
	Danilo Krummrich <dakr@kernel.org>,
	Kari Argillander <kari.argillander@gmail.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Boqun Feng <boqun@kernel.org>, David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>, linux-serial@vger.kernel.org,
	linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org,
	linux-pm@vger.kernel.org, driver-core@lists.linux.dev,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v3 2/4] serdev: add rust private data to serdev_device
Message-ID: <2026031402-absence-graph-af5d@gregkh>
References: <20260313-rust_serdev-v3-0-c9a3af214f7f@posteo.de>
 <20260313-rust_serdev-v3-2-c9a3af214f7f@posteo.de>
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In-Reply-To: <20260313-rust_serdev-v3-2-c9a3af214f7f@posteo.de>

On Fri, Mar 13, 2026 at 06:12:31PM +0000, Markus Probst wrote:
> Add rust private data to `struct serdev_device`, as it is required by the
> rust abstraction added in the following commit
> (rust: add basic serial device bus abstractions).

why is rust "special" here?  What's wrong with the existing private
pointer in this structure?  Why must we add another one?

thanks,

greg k-h