linux-kernel - Re: [PATCH 0/8] rust: DebugFS Bindings

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Message-ID: <CAGSQo0040a9efWj8bCr4KiMUXezJJ2HVQVR5aJ90rgrYSjKq1w@mail.gmail.com>
Date: Wed, 30 Apr 2025 08:01:38 -0700
From: Matthew Maurer <mmaurer@...gle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
	Benno Lossin <benno.lossin@...ton.me>, Andreas Hindborg <a.hindborg@...nel.org>, 
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
	Danilo Krummrich <dakr@...nel.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Sami Tolvanen <samitolvanen@...gle.com>, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org
Subject: Re: [PATCH 0/8] rust: DebugFS Bindings

> And yes, I know why you want to tie debugfs layout to a structure
> layout, it makes one type of debugfs use really easy to write in rust,
> but that's not the common user for what we have today.  Let's address
> the common use first please, save the "builder" pattern stuff for after
> we nail all of that down.
>
> thanks,
>
> greg k-h

I'll remove that API in the next version of the patch series to get
the basics down first, but to give some motivation to what I was
trying to support which *is* done in C today, see qcom-socinfo [1] -
it uses a backing `socinfo_params` struct which is expected to outlive
its whole directory structure.

[1]: https://github.com/torvalds/linux/blob/b6ea1680d0ac0e45157a819c41b46565f4616186/drivers/soc/qcom/socinfo.c#L133-L156