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Date: Sat, 3 May 2025 14:14:46 +0200
From: Danilo Krummrich <dakr@kernel.org>
To: Matthew Maurer <mmaurer@google.com>
Cc: Miguel Ojeda <ojeda@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>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Sami Tolvanen <samitolvanen@google.com>,
	Timur Tabi <ttabi@nvidia.com>, linux-kernel@vger.kernel.org,
	rust-for-linux@vger.kernel.org
Subject: Re: [PATCH v3 2/4] rust: debugfs: Bind file creation for long-lived
 Display
Message-ID: <aBYItvyLspP5lzBA@polis>
References: <20250501-debugfs-rust-v3-0-850869fab672@google.com>
 <20250501-debugfs-rust-v3-2-850869fab672@google.com>
 <aBRrniLfCzWX7nbR@pollux>
 <CAGSQo02bU9HLG=KoYAukUWDX=Ky+kx_wCJszpS-x4gjWXWrYjQ@mail.gmail.com>
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On Fri, May 02, 2025 at 11:07:47AM -0700, Matthew Maurer wrote:
> I'm making this change, but so that I can be correct in the future,
> can you explain why taking an intermediate reference to private is UB?
> My understanding is that my provided vtable are supposed to be the
> only methods looking at this field, and they don't mutate it.

You're right, I confused it with something else.