linux-kernel - Re: [PATCH] rust: debugfs: Implement BinaryReader for Mutex<T> only when T is Unpin

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Message-ID: <aQ294kwmW_-vu_1f@google.com>
Date: Fri, 7 Nov 2025 09:37:38 +0000
From: Alice Ryhl <aliceryhl@...gle.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: gregkh@...uxfoundation.org, rafael@...nel.org, ojeda@...nel.org, 
	alex.gaynor@...il.com, boqun.feng@...il.com, gary@...yguo.net, 
	bjorn3_gh@...tonmail.com, lossin@...nel.org, a.hindborg@...nel.org, 
	tmgross@...ch.edu, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org, Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [PATCH] rust: debugfs: Implement BinaryReader for Mutex<T> only
 when T is Unpin

On Fri, Nov 07, 2025 at 10:16:07AM +0100, Danilo Krummrich wrote:
> Commit da123f0ee40f ("rust: lock: guard: Add T: Unpin bound to
> DerefMut") from tip/master adds an Unpin bound to T for Mutex<T>, hence
> also restrict the implementation of BinaryReader for Mutex<T>
> accordingly.
> 
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Closes: https://lore.kernel.org/all/20251107134144.117905bd@canb.auug.org.au/
> Signed-off-by: Danilo Krummrich <dakr@...nel.org>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>