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Message-ID: <Z-WPkSJRO6_SrOz-@smile.fi.intel.com>
Date: Thu, 27 Mar 2025 19:49:05 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Rob Herring <robh@...nel.org>
Cc: Remo Senekowitsch <remo@...nzli.dev>,
	Daniel Scally <djrscally@...il.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Dirk Behme <dirk.behme@...bosch.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>,
	Saravana Kannan <saravanak@...gle.com>,
	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>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	devicetree@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH 01/10] rust: Move property_present to property.rs

On Thu, Mar 27, 2025 at 08:55:42AM -0500, Rob Herring wrote:
> On Thu, Mar 27, 2025 at 3:37 AM Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> > On Wed, Mar 26, 2025 at 06:13:40PM +0100, Remo Senekowitsch wrote:

...

> > > +struct fwnode_handle *rust_helper_dev_fwnode(struct device *dev)
> > > +{
> > > +     return dev_fwnode(dev);
> > > +}
> >
> > Why not const? For most of the property retrieval APIs the parameter is const.
> 
> Because you might need to modify the refcount.
> 
> Though the rust code should probably use __dev_fwnode() and/or
> __dev_fwnode_const() directly and avoid the need for the helper here.

Indeed, that would help at least to understand the intention.

-- 
With Best Regards,
Andy Shevchenko



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