From: "Danilo Krummrich" <dakr@kernel.org>
To: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
Cc: "Matthew Maurer" <mmaurer@google.com>,
"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>,
"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 6/6] soc: qcom: socinfo: Convert to Rust
Date: Tue, 03 Feb 2026 17:35:24 +0100 [thread overview]
Message-ID: <DG5H119NY68Q.TWLCK3W36CM5@kernel.org> (raw)
In-Reply-To: <2026020315-conch-trickle-2d84@gregkh>
On Tue Feb 3, 2026 at 5:28 PM CET, Greg Kroah-Hartman wrote:
> On Tue, Feb 03, 2026 at 03:46:35PM +0000, Matthew Maurer wrote:
>> +impl Smem {
>> + pub(crate) fn access<'a>(&'a self, dev: &'a Device<Bound>) -> Option<&'a Mmio> {
>> + if *dev != *self.dev {
>
> How can this ever happen?
You are right, since this resource is local to the driver, it should not be
possible to have another devce from somewhere else (especially not a
&Device<Bound>).
However, from a Rust perspective I think not having this check would be unsound,
as the method by itself would not be able guarantee correct behavor anymore.
next prev parent reply other threads:[~2026-02-03 16:35 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
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 [this message]
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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