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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Matthew Maurer <mmaurer@google.com>
Cc: "Bjorn Andersson" <andersson@kernel.org>,
	"Konrad Dybcio" <konradybcio@kernel.org>,
	"Satya Durga Srinivasu Prabhala" <satyap@quicinc.com>,
	"Miguel Ojeda" <ojeda@kernel.org>,
	"Boqun Feng" <boqun.feng@gmail.com>,
	"Gary Guo" <gary@garyguo.net>,
	"Björn 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>,
	"Danilo Krummrich" <dakr@kernel.org>,
	"Daniel Almeida" <daniel.almeida@collabora.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Michal Wilczynski" <m.wilczynski@samsung.com>,
	"Dave Ertman" <david.m.ertman@intel.com>,
	"Ira Weiny" <ira.weiny@intel.com>,
	"Leon Romanovsky" <leon@kernel.org>,
	"Trilok Soni" <tsoni@quicinc.com>,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	rust-for-linux@vger.kernel.org, driver-core@lists.linux.dev,
	dri-devel@lists.freedesktop.org, linux-pwm@vger.kernel.org
Subject: Re: [PATCH v2 3/6] rust: device: Support testing devices for equality
Date: Tue, 3 Feb 2026 17:15:47 +0100	[thread overview]
Message-ID: <2026020315-flop-wiry-f1be@gregkh> (raw)
In-Reply-To: <20260203-qcom-socinfo-v2-3-d6719db85637@google.com>

On Tue, Feb 03, 2026 at 03:46:32PM +0000, Matthew Maurer wrote:
> This allows device drivers to check if, for example, an auxiliary
> devices is one of its children by comparing the parent field, or
> checking if a device parameter is its own device.

Ok, but why?  This says what it does, but I have no context as to why
this would be needed.

What driver wants to know this?

thanks,

greg k-h

  parent reply	other threads:[~2026-02-03 16:15 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-03 15:46 [PATCH v2 0/6] soc: qcom: socinfo: Convert to Rust Matthew Maurer
2026-02-03 15:46 ` [PATCH v2 1/6] rust: Add sparse_array! helper macro Matthew Maurer
2026-02-03 15:46 ` [PATCH v2 2/6] rust: io: Support copying arrays and slices Matthew Maurer
2026-02-03 15:53   ` Danilo Krummrich
2026-02-03 15:46 ` [PATCH v2 3/6] rust: device: Support testing devices for equality Matthew Maurer
2026-02-03 15:56   ` Danilo Krummrich
2026-02-03 16:05   ` Gary Guo
2026-02-03 16:15   ` Greg Kroah-Hartman [this message]
2026-02-03 16:17   ` Greg Kroah-Hartman
2026-02-03 16:29     ` Danilo Krummrich
2026-02-03 16:40       ` Greg Kroah-Hartman
2026-02-03 16:46         ` Danilo Krummrich
2026-02-03 17:17           ` Matthew Maurer
2026-04-02 13:46   ` Uwe Kleine-König
2026-02-03 15:46 ` [PATCH v2 4/6] rust: auxiliary: Support accessing raw aux pointer Matthew Maurer
2026-02-03 15:55   ` Danilo Krummrich
2026-02-03 15:46 ` [PATCH v2 5/6] rust: debugfs: Allow access to device in Devres-wrapped scopes Matthew Maurer
2026-02-03 15:59   ` Danilo Krummrich
2026-02-03 16:47   ` Gary Guo
2026-02-03 16:58     ` Danilo Krummrich
2026-02-03 18:04     ` Matthew Maurer
2026-02-03 15:46 ` [PATCH v2 6/6] soc: qcom: socinfo: Convert to Rust Matthew Maurer
2026-02-03 16:28   ` Greg Kroah-Hartman
2026-02-03 16:35     ` Danilo Krummrich
2026-02-03 16:48       ` Greg Kroah-Hartman
2026-02-03 16:56         ` Danilo Krummrich
2026-02-03 17:17           ` Gary Guo
2026-02-03 17:26             ` Matthew Maurer
2026-02-03 17:59             ` Danilo Krummrich
2026-02-03 17:37     ` Matthew Maurer
2026-02-04  8:38       ` Greg Kroah-Hartman
2026-02-03 20:27   ` Bjorn Andersson
2026-02-04  8:40     ` Greg Kroah-Hartman

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