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From: "Danilo Krummrich" <dakr@kernel.org>
To: "Daniel Almeida" <daniel.almeida@collabora.com>
Cc: "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>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 4/4] rust: drm: dispatch delayed work items to the private data
Date: Tue, 20 Jan 2026 12:14:33 +0100	[thread overview]
Message-ID: <DFTDFR0943NX.3RTHNQURC11XQ@kernel.org> (raw)
In-Reply-To: <20260115-aref-workitem-v1-4-9883e00f0509@collabora.com>

On Fri Jan 16, 2026 at 1:36 AM CET, Daniel Almeida wrote:
> +// SAFETY: Our `HasWork<T, ID>` implementation returns a `work_struct` that is
> +// stored in the `work` field of a `delayed_work` with the same access rules as
> +// the `work_struct` owing to the bound on `T::Data: HasDelayedWork<Device<T>,
> +// ID>`, which requires that `T::Data::raw_get_work` return a `work_struct` that
> +// is inside a `delayed_work`.
> +unsafe impl<T, const ID: u64> HasDelayedWork<Device<T>, ID> for Device<T>
> +where
> +    T: drm::Driver,
> +    T::Data: HasDelayedWork<Device<T>, ID>,
> +{
> +}

What do you intend to do within work that is queued for a DRM device? I assume
you have to access bus device resources?

Also, it would be nice to see how this is used in a driver. Can you please add a
patch for Tyr to the series?

  reply	other threads:[~2026-01-20 11:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-16  0:35 [PATCH 0/4] rust: Add ARef support for work items Daniel Almeida
2026-01-16  0:35 ` [PATCH 1/4] rust: workqueue: add support for ARef<T> Daniel Almeida
2026-01-16  0:35 ` [PATCH 2/4] rust: drm: dispatch work items to the private data Daniel Almeida
2026-01-20 11:13   ` Danilo Krummrich
2026-01-16  0:35 ` [PATCH 3/4] rust: workqueue: add delayed work support for ARef<T> Daniel Almeida
2026-01-16  0:36 ` [PATCH 4/4] rust: drm: dispatch delayed work items to the private data Daniel Almeida
2026-01-20 11:14   ` Danilo Krummrich [this message]
2026-01-20 14:32     ` Daniel Almeida
2026-01-20 10:37 ` [PATCH 0/4] rust: Add ARef support for work items Alice Ryhl
2026-01-20 14:41   ` Daniel Almeida

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