From nobody Sun Feb 8 19:55:04 2026 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0873742B75C; Wed, 4 Feb 2026 20:41:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770237674; cv=none; b=M0OCqQD6/l9sEt7jdrbTnKW0JM1+xBgnJVuXor84fMwQV8BkgYU+dnP1+kPB+FaC5nKBcj5ejKUTLW9vOHa7mgP5Hc/BlfbRdLzWk+LPKN6BizQWX5Y6+XG4TSKpkZlmGGROitSfSs0xmBLt96W3efTqGzCswp4meOuoq0Q2cbE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770237674; c=relaxed/simple; bh=dd+gf/jKyogh1Q1ivowg9YoTCKDzuqKUdBLw/sUwIr4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=GIoS2CJM+DggVZjCH6zP7aeKJX8SV2TkGjkN2x5u7cumVtsV9KeI/jESBGUYfL5jjq45g4JtO1TtqyKyzKSU9y3/4/lj6teXm2RcD50tEQBcGaKfR6s27XTnjxi4BThxIx6fAFK6m6pg7tag3DjK+IpFCMwwC0UOdXN4mJzI9nQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=OjS9kYmB; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="OjS9kYmB" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1770237672; bh=dd+gf/jKyogh1Q1ivowg9YoTCKDzuqKUdBLw/sUwIr4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=OjS9kYmBRpyT8TTi5bVVs9RXwUpuCU+j1eih+1QuHUJOJkwYQOib0vJCgOY9+bFV0 SGLXVt+YsE/teFXEUv01QA7tgROg/TKPtqr+wLFt8QNJ6LwrQG5kN/E9FhHq9JadhX id8nSX9/aBFvPAICrYIiO5q8+0I3CakyAbZCYpUevIOoSA3eXL5Qjie79jsNQG5Nyo KjIhHt3RK2Ln5MWtsqifo/lROeZKpDp7ZXqq6xRdcYep4meNQwff3gCHgO0xGkQ8YG ySH5m1GWf3Zpb0q8DhwuEm2cji4sDomK1sWyq210WmWhhp4B7WMd9etRh++2oSMnxv FoS7AHR9qrBmw== Received: from [192.168.0.79] (unknown [IPv6:2804:14d:72b4:81ae:67c:16ff:fe57:b5a3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dwlsalmeida) by bali.collaboradmins.com (Postfix) with ESMTPSA id CAB3C17E14F5; Wed, 4 Feb 2026 21:41:09 +0100 (CET) From: Daniel Almeida Date: Wed, 04 Feb 2026 17:40:42 -0300 Subject: [PATCH v2 4/4] rust: drm: dispatch delayed work items to the private data Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260204-aref-workitem-v2-4-bec25b012d2a@collabora.com> References: <20260204-aref-workitem-v2-0-bec25b012d2a@collabora.com> In-Reply-To: <20260204-aref-workitem-v2-0-bec25b012d2a@collabora.com> To: Miguel Ojeda , Boqun Feng , Gary Guo , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , David Airlie , Simona Vetter , Tejun Heo , Lai Jiangshan Cc: rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Almeida X-Mailer: b4 0.14.3 Much like the patch that dispatched (regular) work items, we also need to dispatch delayed work items in order not to trigger the orphan rule. This allows a drm::Device to dispatch the delayed work to T::Data. Signed-off-by: Daniel Almeida --- rust/kernel/drm/device.rs | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/rust/kernel/drm/device.rs b/rust/kernel/drm/device.rs index c760a743e1df..ad0447e8763f 100644 --- a/rust/kernel/drm/device.rs +++ b/rust/kernel/drm/device.rs @@ -12,7 +12,7 @@ prelude::*, sync::aref::{ARef, AlwaysRefCounted}, types::Opaque, - workqueue::{HasWork, Work, WorkItem}, + workqueue::{HasDelayedWork, HasWork, Work, WorkItem}, }; use core::{alloc::Layout, mem, ops::Deref, ptr, ptr::NonNull}; =20 @@ -273,3 +273,15 @@ unsafe fn work_container_of(ptr: *mut Work, = ID>) -> *mut Self { unsafe { crate::container_of!(data_ptr, Self, data) } } } + +// SAFETY: Our `HasWork` implementation returns a `work_struct` tha= t is +// stored in the `work` field of a `delayed_work` with the same access rul= es as +// the `work_struct` owing to the bound on `T::Data: HasDelayedWork, +// ID>`, which requires that `T::Data::raw_get_work` return a `work_struct= ` that +// is inside a `delayed_work`. +unsafe impl HasDelayedWork, ID> for Device +where + T: drm::Driver, + T::Data: HasDelayedWork, ID>, +{ +} --=20 2.52.0