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Date: Thu, 8 Jan 2026 08:57:23 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: 1064094935@qq.com
Cc: "Rafael J . Wysocki" <rafael@kernel.org>,
	Danilo Krummrich <dakr@kernel.org>, Miguel Ojeda <ojeda@kernel.org>,
	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 <lossin@kernel.org>,
	Andreas Hindborg <a.hindborg@kernel.org>,
	Alice Ryhl <aliceryhl@google.com>, Trevor Gross <tmgross@umich.edu>,
	rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
	pengfuyuan <pengfuyuan@kylinos.cn>
Subject: Re: [PATCH] rust: device: add platdata accessors
Message-ID: <2026010858-yonder-seventeen-361f@gregkh>
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In-Reply-To: <tencent_C135881D822B4C6C12E841516893C774A805@qq.com>

On Thu, Jan 08, 2026 at 03:42:51PM +0800, 1064094935@qq.com wrote:
> From: pengfuyuan <pengfuyuan@kylinos.cn>

Please use your "real" name (you can use native character sets if
wanted.)

> Implement generic accessors for the platform data of a device.
> 
> Platform data is typically set by platform code when creating the device
> and points to platform-specific data structures. The accessor provides
> type-safe access to this data without requiring unsafe code at the call
> site.
> 
> The accessor is implemented for Device<Bound>, allowing drivers to access
> platform data during probe() and other device lifecycle callbacks. Unlike
> drvdata, platform data is managed by platform code and has a lifetime
> tied to the device itself.

Do you have a user for this?  That would be good to see at the same time
here, we can't just add apis with no real users.

thanks,

greg k-h