From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from CWXP265CU008.outbound.protection.outlook.com (mail-ukwestazon11020085.outbound.protection.outlook.com [52.101.195.85]) (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 8029F3403E4; Tue, 19 May 2026 13:02:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.195.85 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779195740; cv=fail; b=cEyOethjrncg9cEPAB/NzuOW3faaadcWeb9Xqd+Y5y4z8o9J0ktlhfxMt5hRjvVTy+NKd5skorQu5cHxYFrV/yihMe4GDwfjnSmKyaZCIjwsabSBUpgT8NhJuHIkVaTvkGZuLLxv1xEb6wMxIIVntsM3V0g+djPklqwbrM2jw9I= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779195740; c=relaxed/simple; bh=zpXP4bXpT/UwMTFR+iHkL+tIglCspL5SA6hzKmhbCRU=; h=Content-Type:Date:Message-Id:Cc:Subject:From:To:References: In-Reply-To:MIME-Version; b=Qe803inq5dEpHkA2JWCQjNFGnLap9AHYnimi8Zi/AmI6xz2VpmU8ot16vKTCM0q+u9H3xi7kTT9n3Zq5UEwrzvqB14VcqwG/GH8LFHM1GXwJBb4dR1m8ZEZyLf8umLdR5p6DkjvFlGvDG3Qd8MbqzL5NTPriw661EiVxPKAe588= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=garyguo.net; spf=pass smtp.mailfrom=garyguo.net; dkim=pass (1024-bit key) header.d=garyguo.net header.i=@garyguo.net header.b=fKoe44Ei; arc=fail smtp.client-ip=52.101.195.85 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=garyguo.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=garyguo.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=garyguo.net header.i=@garyguo.net header.b="fKoe44Ei" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=yuhN7Gm+jvRDEU+Kq80pgsPNCNxQlWPeTJXdTL78CMVEjm9dosMYw+4RVxRAoOXd5x0wgySqgNDqHE2IFvZ+hLW32hfW5HOoR6ckVqCtBGj2AJrDD/5KkqbOsiX7CNGF+ZnRvtEBpkV70n6i6d7ceI09WoST4Czfn1GbKutEUUsBDM3gZAnfg9CxIIHBLxoPcAkJlL8hV7due0EpFOxnrO3lpSkSesuSTUbWu3rrCPJrAyZjmI+WZvKEh9YsTsRZnSekkwkCG2Cc6JV3AHJZONh1JWrMrXcy2jFdej8xdzl6fzgoOuoe/b57zkUAtDdKxt3D4J3qBbhMF9UsnQNz3A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=wws0Na0lWOjG/Wo84uSKdZyNdkL8ic26+FvJCTFVQYg=; b=Pna7uJAwZsGr3WHFHYORoqYDpUVI5yDgHJrdZUqSp8F6PXeIJncnj4WEUIjHJB5DD7t6z0eLlYCNkCNrE297J4m656glb/I+n6BDo4OTWeP0TTNckbX5yDAUAQxRqYOP28AcaM5pN+FOywQGHCrLonRs0N/oWoA6QaIWn5XO+/67WYXbLlLZyh0IhhvZQLMKLXltFa4yGldPgcHRXvTNLCbV1WCzhzPBg1CYMgk8OR4S4f6koHtfRcNrwQ4BbDkVaWIeFjdFTzRn1lkzIgA2OJ0NratPhQxuN3H7/BwKuNgfh4c9vAsf+0mc5QwWtpeNFk3bYcBddjxUlXOeYa3spg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=garyguo.net; dmarc=pass action=none header.from=garyguo.net; dkim=pass header.d=garyguo.net; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=garyguo.net; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=wws0Na0lWOjG/Wo84uSKdZyNdkL8ic26+FvJCTFVQYg=; b=fKoe44EiKVQhB/l3nSVGKaUxJ6w/MYaHXcIxFfdFKt1/PnlmH99VBdUeeac7zF2Rvp9B4dPSOCxVIcSsL1SJnSXnxV6pGIvTzQigjl6Ba7FzREULb7Bhm6ti2pT8OyFCyzcG1szyeqRPSjtYUmecuTsji4SV4USzweKnieyacws= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=garyguo.net; Received: from LOVP265MB8871.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:488::16) by CWXP265MB2231.GBRP265.PROD.OUTLOOK.COM (2603:10a6:400:75::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.25.24; Tue, 19 May 2026 13:02:14 +0000 Received: from LOVP265MB8871.GBRP265.PROD.OUTLOOK.COM ([fe80::1c3:ceba:21b4:9986]) by LOVP265MB8871.GBRP265.PROD.OUTLOOK.COM ([fe80::1c3:ceba:21b4:9986%4]) with mapi id 15.21.0025.023; Tue, 19 May 2026 13:02:14 +0000 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 19 May 2026 14:02:13 +0100 Message-Id: Cc: , , , , , , , Subject: Re: [PATCH v3 09/27] rust: device: implement Sync for Device From: "Gary Guo" To: "Danilo Krummrich" , , , , , , , , , , , , , , , , , , , , , , , , , X-Mailer: aerc 0.21.0 References: <20260517000149.3226762-1-dakr@kernel.org> <20260517000149.3226762-10-dakr@kernel.org> In-Reply-To: <20260517000149.3226762-10-dakr@kernel.org> X-ClientProxiedBy: LO4P265CA0064.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:2af::20) To LOVP265MB8871.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:488::16) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LOVP265MB8871:EE_|CWXP265MB2231:EE_ X-MS-Office365-Filtering-Correlation-Id: 52ace1a4-f38a-4b48-4bf1-08deb5a6d8b1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|10070799003|1800799024|7416014|376014|18002099003|22082099003|56012099003|921020|4143699003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LOVP265MB8871.GBRP265.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230040)(366016)(10070799003)(1800799024)(7416014)(376014)(18002099003)(22082099003)(56012099003)(921020)(4143699003);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?ekU2UXBzVDg2MGc2SkhYOVAxRytKQTVpOEVRUlhlTFBEUytiUmtLK3RkeUlY?= =?utf-8?B?NElsaTd5d3ZteXRoQ000UWI2MnRMNTJLZmUxZm9BaEFUWll3eUJFMGdDZTcz?= =?utf-8?B?aitNT0RwTDl2Ymw5TzhXM0UzbFcySTkxaXFSclpFN0JEbEE1U21IL2ZabTAx?= =?utf-8?B?SjgvZEF0bEVhcmhQdzc1ZHVYWDJhT0cvbWVlZ1YwOWozNjdRT3VZSzdpa1hH?= =?utf-8?B?TzhRc2ttUmFLNHdjMi9HQTVDQjdnM3M5amZkWnBUbGVPQU9vTlZhY3FySGVO?= =?utf-8?B?Z2NaZWM2enRoYlQ3dThNUHY3ZFd4dUR5OXhva1kwZ3RnbUxUeGJDZVpSV1Q1?= =?utf-8?B?NzVZTnd6TDMvRnErbHBBc3RYbW90RG1lYzBiaTFMY2pWZ2JiQjEwandITzFX?= =?utf-8?B?NGV5Z1JIU3pXZzJxTEJQSW1qMllNK3NjTVNJYnhmaTBycEFDUEY1SklpWTlu?= =?utf-8?B?N3ZOK3AvMEEvUDFCcGVRaFF5azRRREJhSGh1R0dUMWdCZ3NwQ1FvdGJZeTZC?= =?utf-8?B?RU1oTXRUVFZaRXpMSHV5MVowUW5jcE5xS2RycEo4WjZQZ0dwSXlVKzgzZWIw?= =?utf-8?B?NlZvcGlSaW1MVmdpOHNncmhKZGtSa0FKRjk5QWRxYlRPVGNzUHgvb2ZGOEsx?= =?utf-8?B?aTBkL2NtY3V0WTdhb2tFbHB4Z0RTWWgxS0hObGk4a3VQZHlseFNSYzRaMlNR?= =?utf-8?B?Q0RUczBjL004elZNcXY3ZGFteUwxVWJzeVMxNm82N1U4RUoyaDhoZlp5TDRC?= =?utf-8?B?SjE5dWF3UXlZL2tMeTE5L2J0TUNpYStuZFo2NGtGSlZYd0JES2dvK2M1MVBB?= =?utf-8?B?YTd5TktHVXZFZVNRM0E5c2JTMXJpRjNiQXFTWCs2dXI3U3gvMFhVWHpCNFBl?= =?utf-8?B?a2ZHdlRycFRYWlNTcSt5TzNqWTNUbE1zUVdJMFBNU3IrR20yd0JzSDd3aFBO?= =?utf-8?B?Nk1sM09mT0xFdnVlVWZxbm85Q3A3NmIxYm1HSGxCOEJtekx3Y3lVUHlNZGhh?= =?utf-8?B?SmRUdGJBd2VIYjFBMzQ0b0dqM2dUOURpK2syVUpGakVia1VSZkFvaUV1bllx?= =?utf-8?B?OGdualZraDlPaExscURQMlk0MGl5Nk1mVGFVUWlMZ3F5eEE2Vy9KKzlUdFk0?= =?utf-8?B?MnYzODVxd05sMmZ4SU1pWnpvSnpkejFZNktEeE41OTZBanRaYk9aOHR5eVVU?= =?utf-8?B?R3ZXZFREc2xieUg5ZW9tY0VINWsvYU1pdUlWUzhHZ3FVblFFK3hGU252Z0Ru?= =?utf-8?B?aWFzaFFLN2U5aXpXNzVzT2E3c0hIWVFmeDQ3SkFTTE5obk93akNFRTFnUU5s?= =?utf-8?B?dWhKV1BQM3lVWStZMm53bHJJYW1oMk9RczdQQUNYUDhuQXc3S0RuNVpSM29F?= =?utf-8?B?WDdCMHNZZC9IUkNyS01Fdit4ckFURGlHR2hzNkhMVjMxTm9KeFpqaEhaS3Ri?= =?utf-8?B?aWdoOFpZdUVvUUtPb1VlaTJoVStmOGpzT3p2VHRPVHQ4ZURZUlRINXFPdHpF?= =?utf-8?B?MzQvSWlaZ1NaeUtQZEZiSnJ3aitISzJ6VHcyUmdVcVM5Z0t5RngxTlgxN3Ru?= =?utf-8?B?alM2VmszVjdMWnJkVmg4b3dSdEJaWHBQYWlhN05EYlVsa2xiV2thMlpVNzNK?= =?utf-8?B?Q1hFMHhaamtUblBybDhFMS8rMmhUUlZ3WTJtUndLUHJLQzliVW5lZlcyTGZj?= =?utf-8?B?L2RGOVUrdFdPMEx6bFZOblNrNWk2ak8yaXptWiswY01Tc1orb0NQREVSZjlR?= =?utf-8?B?U3d5SXlFYS93UE1QVlNhMlMxbUZVK21Nc1pPTVlnZDN5U21uTWhvcFVIS1gr?= =?utf-8?B?N21MK0ozT2w0dlZJYXJ3cnJjdXBvcmZuNmdTeHRwT0I3T2piM3lsbXhhZGtY?= =?utf-8?B?K1Izd01nbXg2cTVDQmFmSjNsenltQmVpaXNVSW96Tm9CQkUwUTlPRnJNRDFN?= =?utf-8?B?cHRESWw1bmRrbWRpWnpyc2dYUzg0Wm5tUXRwZ0FhcTk3YnZBRHhGS1NPZmsv?= =?utf-8?B?M1poem96eEFIUCs5N2MvVlBza1lrMEVkeXlvYWN5b0NIYlFIZUhGWnoyc3dn?= =?utf-8?B?VEU1NDROenFkcCtLbXkvK1FxWENYbE9TTHVFT0J0R0NJMEdPTmVvNkd4OUtY?= =?utf-8?B?eXNKVHREUW9wMm5sbDE3eEVzNHpoOUV2dkphVDVwWmltbUpkdEFkWkZjaG5x?= =?utf-8?B?dzdDa3VnYXpKK1dXd0NJK3k4ZjBWb1IyV1VwNG5LdWcvZFpTY0w1TWg2aGYy?= =?utf-8?B?ZjJBemhiWUVBbnBsWktBS21yNFNUZXpUb2JwaDlxaVpIOFJSSzhwejBCTXkx?= =?utf-8?B?OVJxQ3BUU3BUMzRZVkdBOVJWUFBwd2hrMS9VajVsemsrR3ljUDZaUT09?= X-OriginatorOrg: garyguo.net X-MS-Exchange-CrossTenant-Network-Message-Id: 52ace1a4-f38a-4b48-4bf1-08deb5a6d8b1 X-MS-Exchange-CrossTenant-AuthSource: LOVP265MB8871.GBRP265.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 May 2026 13:02:13.9088 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: bbc898ad-b10f-4e10-8552-d9377b823d45 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 23im3WsSG3pQzw8BAwFytBuA6S64Xm65tL/fUqAU8l3s5vgg0n+EcrPt2DKlFbWIv9VONSosxoRNDF37KSsAIw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CWXP265MB2231 On Sun May 17, 2026 at 1:00 AM BST, Danilo Krummrich wrote: > Implement Sync for Device in addition to Device. >=20 > Device uses the same underlying struct device as Device; > Bound is a zero-sized type-state marker that does not affect thread > safety. >=20 > This is needed for types that hold &'bound Device, such as > io::mem::IoMem, to be Send. >=20 > Signed-off-by: Danilo Krummrich Reviewed-by: Gary Guo > --- > rust/kernel/device.rs | 4 ++++ > 1 file changed, 4 insertions(+)