From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 235091397; Sun, 17 May 2026 00:02:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778976159; cv=none; b=BS+NpRXnejVU4k21H2lEr6O8gQIL/VaHi0CH9aLpjqk6NP3YRfBqFaRLYS5kcKRMQ87v7pbhesY6igbywMYRY8sx5DCeh6FXS1zDJfROCieamYp739IGi8JHuxQ08onOWQLIvi5p/EmvMCSKYw0fng3IiHV2WYe4eko8ElUQ37g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778976159; c=relaxed/simple; bh=thZLruCPSaROEe6IzJj9ZMFO1gnnVjj8Zyz2NwmRVyM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jiL9ALybstOjd2ZZenmzcl9XyKeFQ33GOgQ2avLf1Sn/zvqns3qG9U9wSNAj/U9gzdK/a3PQ4aQm+6vyxASmMLJtxfmb3wKU2gkFNcV2vWYR9IiTZbR30yAxmQuuDHG+r9jok7kYz6CcY9fbXmkG9LOrANdIGKKHPDGISHyYoZM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fF+bC/vD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fF+bC/vD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68435C2BCC9; Sun, 17 May 2026 00:02:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778976158; bh=thZLruCPSaROEe6IzJj9ZMFO1gnnVjj8Zyz2NwmRVyM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fF+bC/vDs3AvLgPCt2CDg4WxoOW7JSKP3CFOmWFUnEecHXdgc7rBTDqf6hW2DEg7Z SGx66WRKIo4bWIUZRT4f9l8XWYLLfOh1KJPbpEmAT0aiJ2pBKc0YNu2EzjnYT21VNV UHRL6qQ9KmEVesC4/TzjHxBL//VAujQVYKpFi2ztrfM5QQeuNOKV7FThR1N4OKy99O AXx+JKz2DxumUVVMFgwxJUK9V+r71xfvgZZbGuelNTr+77A+zprDbFFBzkPpKr04g5 YigUGXgKqPj8Ymrv3VQGuPd+UNd7dkqvJdtAluejdkFQVJY7IEHz20qkbvmjmQNITv JvyUJe2eV+62A== From: Danilo Krummrich To: gregkh@linuxfoundation.org, rafael@kernel.org, acourbot@nvidia.com, aliceryhl@google.com, david.m.ertman@intel.com, ira.weiny@intel.com, leon@kernel.org, viresh.kumar@linaro.org, m.wilczynski@samsung.com, ukleinek@kernel.org, bhelgaas@google.com, kwilczynski@kernel.org, abdiel.janulgue@gmail.com, robin.murphy@arm.com, markus.probst@posteo.de, ojeda@kernel.org, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, igor.korotin@linux.dev, daniel.almeida@collabora.com, pcolberg@redhat.com Cc: driver-core@lists.linux.dev, linux-kernel@vger.kernel.org, nova-gpu@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-pm@vger.kernel.org, linux-pwm@vger.kernel.org, linux-pci@vger.kernel.org, rust-for-linux@vger.kernel.org, Danilo Krummrich Subject: [PATCH v3 05/27] rust: pci: implement Sync for Device Date: Sun, 17 May 2026 02:00:53 +0200 Message-ID: <20260517000149.3226762-6-dakr@kernel.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260517000149.3226762-1-dakr@kernel.org> References: <20260517000149.3226762-1-dakr@kernel.org> Precedence: bulk X-Mailing-List: driver-core@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Implement Sync for Device in addition to Device. Device uses the same underlying struct pci_dev as Device; Bound is a zero-sized type-state marker that does not affect thread safety. This is needed for drivers to store &'bound pci::Device in their private data while remaining Send. Signed-off-by: Danilo Krummrich --- rust/kernel/pci.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/rust/kernel/pci.rs b/rust/kernel/pci.rs index ffaf05bf9aaa..c06ac3fb2a64 100644 --- a/rust/kernel/pci.rs +++ b/rust/kernel/pci.rs @@ -528,3 +528,7 @@ unsafe impl Send for Device {} // SAFETY: `Device` can be shared among threads because all methods of `Device` // (i.e. `Device) are thread safe. unsafe impl Sync for Device {} + +// SAFETY: Same as `Device` -- the underlying `struct pci_dev` is the same; +// `Bound` is a zero-sized type-state marker that does not affect thread safety. +unsafe impl Sync for Device {} -- 2.54.0