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GET /api/1.1/patches/2229237/?format=api
{ "id": 2229237, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229237/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pwm/patch/20260427221155.2144848-11-dakr@kernel.org/", "project": { "id": 38, "url": "http://patchwork.ozlabs.org/api/1.1/projects/38/?format=api", "name": "Linux PWM development", "link_name": "linux-pwm", "list_id": "linux-pwm.vger.kernel.org", "list_email": "linux-pwm@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260427221155.2144848-11-dakr@kernel.org>", "date": "2026-04-27T22:11:08", "name": "[10/24] rust: device: implement Sync for Device<Bound>", "commit_ref": null, "pull_url": null, "state": "handled-elsewhere", "archived": false, "hash": "cf1193fb7df161ed567b43299ba9180ff03471d9", "submitter": { "id": 89037, "url": "http://patchwork.ozlabs.org/api/1.1/people/89037/?format=api", "name": "Danilo Krummrich", "email": "dakr@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pwm/patch/20260427221155.2144848-11-dakr@kernel.org/mbox/", "series": [ { "id": 501734, "url": "http://patchwork.ozlabs.org/api/1.1/series/501734/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pwm/list/?series=501734", "date": "2026-04-27T22:10:58", "name": "rust: device: Higher-Ranked Lifetime Types for device drivers", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501734/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2229237/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2229237/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pwm+bounces-8713-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-pwm@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=Tpxe20+p;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; helo=sea.lore.kernel.org;\n envelope-from=linux-pwm+bounces-8713-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"Tpxe20+p\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org [172.234.253.10])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g4Hyr1yHTz1xvV\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 28 Apr 2026 08:18:44 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id EF0543089B40\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 27 Apr 2026 22:13:16 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id B663E3ACEF0;\n\tMon, 27 Apr 2026 22:13:11 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 8FEEB3A9D92;\n\tMon, 27 Apr 2026 22:13:11 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 620F6C2BCB5;\n\tMon, 27 Apr 2026 22:13:05 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777327991; cv=none;\n b=tgpjHCQW8JG0zIVBC3V1bLcZPGL0r5pfNazvqoOLty1IN44cAkHgAh9nXVMiKCASIB6K+tLd7oKg/c9cXw/4eNJoTe6YW2CbYCOw6VsgasFQHOIaPpeItPDByi0Sl3L392eH/e9ReLDuA7bmgSnwRPv4DDKRVh+Yzr6OF10JS2Y=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777327991; c=relaxed/simple;\n\tbh=auHxUUsQH6YXhhsoPM2i0zRThcG3GjhIs2ycbNDnDEE=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=fcpzTJjc0vllHVnD3vfbHO05mJZY+R4wAOa238REEcYA5ZhHJiLaTqFcG7lD+xaGWOC7j+ac6ExAZ2huSpMW6MsK7Wzby+3dBFinT+7yguaqDkjkv0AaqG/C/bKmHvDvCE2KRYvuBR9Ikx9wHZNOnodUvl2YFLzdpONfWxqIuYk=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=Tpxe20+p; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1777327991;\n\tbh=auHxUUsQH6YXhhsoPM2i0zRThcG3GjhIs2ycbNDnDEE=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=Tpxe20+pywFn3Tok0SQvaoZWh+7phDXK2kLMxayygbnAbIGpo4k5r99nyg4ok/TJ/\n\t SBrRKriatJkTg+0/rNlGho/QEAN0URtpVftUITiFgz2PeDEoV+PZVNxNFH1xG+PPeM\n\t 2l938aLVge8Y5kYhVxsdNslPc7pfluaqm1oARKGxJQluXP7FWJVv8KXlEF6MARCVK0\n\t R03bksZMeUO14VT8jFy1rBybwQBp4DWLGX+z2POqWWcfj3J6li5f2ak6K9SenC1p3N\n\t 7DnNU0RItI+Fs6iuvcc1ndUxyHPK59ARQzj2B906M/KbqDQOr7YNNJf236NiaDcESF\n\t hqZrZA6jz778g==", "From": "Danilo Krummrich <dakr@kernel.org>", "To": "gregkh@linuxfoundation.org,\n\trafael@kernel.org,\n\tacourbot@nvidia.com,\n\taliceryhl@google.com,\n\tdavid.m.ertman@intel.com,\n\tira.weiny@intel.com,\n\tleon@kernel.org,\n\tviresh.kumar@linaro.org,\n\tm.wilczynski@samsung.com,\n\tukleinek@kernel.org,\n\tbhelgaas@google.com,\n\tkwilczynski@kernel.org,\n\tabdiel.janulgue@gmail.com,\n\trobin.murphy@arm.com,\n\tmarkus.probst@posteo.de,\n\tojeda@kernel.org,\n\tboqun@kernel.org,\n\tgary@garyguo.net,\n\tbjorn3_gh@protonmail.com,\n\tlossin@kernel.org,\n\ta.hindborg@kernel.org,\n\ttmgross@umich.edu", "Cc": "driver-core@lists.linux.dev,\n\tlinux-kernel@vger.kernel.org,\n\tnova-gpu@lists.linux.dev,\n\tdri-devel@lists.freedesktop.org,\n\tlinux-pm@vger.kernel.org,\n\tlinux-pwm@vger.kernel.org,\n\tlinux-pci@vger.kernel.org,\n\trust-for-linux@vger.kernel.org,\n\tDanilo Krummrich <dakr@kernel.org>", "Subject": "[PATCH 10/24] rust: device: implement Sync for Device<Bound>", "Date": "Tue, 28 Apr 2026 00:11:08 +0200", "Message-ID": "<20260427221155.2144848-11-dakr@kernel.org>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260427221155.2144848-1-dakr@kernel.org>", "References": "<20260427221155.2144848-1-dakr@kernel.org>", "Precedence": "bulk", "X-Mailing-List": "linux-pwm@vger.kernel.org", "List-Id": "<linux-pwm.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pwm+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pwm+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "The underlying `struct device` is the same for all device contexts;\n`Bound` is a zero-sized type-state marker that does not affect thread\nsafety. Implement `Sync` for `Device<Bound>` with the same safety\nargument as the existing `Device<Normal>` implementation.\n\nThis is needed for types that hold `&'a Device<Bound>`, such as\n`io::mem::IoMem`, to be `Send`.\n\nSigned-off-by: Danilo Krummrich <dakr@kernel.org>\n---\n rust/kernel/device.rs | 4 ++++\n 1 file changed, 4 insertions(+)", "diff": "diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs\nindex 09cbe8a438a9..b330b87178d3 100644\n--- a/rust/kernel/device.rs\n+++ b/rust/kernel/device.rs\n@@ -503,6 +503,10 @@ unsafe impl Send for Device {}\n // synchronization in `struct device`.\n unsafe impl Sync for Device {}\n \n+// SAFETY: Same as `Device<Normal>` -- the underlying `struct device` is the same; `Bound` is a\n+// zero-sized type-state marker that does not affect thread safety.\n+unsafe impl Sync for Device<Bound> {}\n+\n /// Marker trait for the context or scope of a bus specific device.\n ///\n /// [`DeviceContext`] is a marker trait for types representing the context of a bus specific\n", "prefixes": [ "10/24" ] }