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From: Trevor Gross <tmgross@umich.edu>
Date: Sat, 10 Feb 2024 01:06:07 -0600
Message-ID: <CALNs47u-wVfgkK8cB_qe2JRfrxP9wM8J8e0RJwDcGbNVh_uBNg@mail.gmail.com>
Subject: Re: [PATCH 1/3] rust: add userspace pointers
To: 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>, Gary Guo <gary@garyguo.net>, 
	=?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, 
	Benno Lossin <benno.lossin@proton.me>, Andreas Hindborg <a.hindborg@samsung.com>, 
	Kees Cook <keescook@chromium.org>, Al Viro <viro@zeniv.linux.org.uk>, 
	Andrew Morton <akpm@linux-foundation.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, 
	=?UTF-8?B?QXJ2ZSBIasO4bm5ldsOlZw==?= <arve@android.com>, 
	Todd Kjos <tkjos@android.com>, Martijn Coenen <maco@android.com>, 
	Joel Fernandes <joel@joelfernandes.org>, Carlos Llamas <cmllamas@google.com>, 
	Suren Baghdasaryan <surenb@google.com>, Arnd Bergmann <arnd@arndb.de>, linux-mm@kvack.org, 
	linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, 
	Christian Brauner <brauner@kernel.org>
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On Thu, Feb 8, 2024 at 6:53=E2=80=AFAM Alice Ryhl <aliceryhl@google.com> wr=
ote:
> Leaking pointer addresses in logs is frowned upon in the kernel, so I
> don't think we should include that.

Sounds like the very correct decision from what Greg and Kees said. If
we add an impl in the future (to be able to `#[derive(Debug)]` on
anything containing this type) it could just print
`0x****************`.