From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.remote-ip=192.198.163.8 ARC-Seal: i=2; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=fail; t=1793753458; b=wWne33XS7+LxH6BMOJRJfJeRJf84wUGQ++80zc8kc8y+61O6vTcvl6n3b7mqr7u66kEy l6k+EsZAxsG99zYA8YNhn34alL9ZINAxite9ohTrZH6by75Pth01uFNDNRAcmj6GRWS9r luqC6jk76Fw0Pcgxw30inRkGNcJk99qTNfNamLuY/y7HxvW/8Y2ZhLwj8odscku1zIcOu fIpdRQQIr3elpKFoFvp0DmkFI0tLpxWhdSDYSBr4ijL5lQKcyhoGYVz6f8cVhSRW0+0DE VpTKD/PKo4cSsXwr9CoTo0IgbMGM86G8RppiI4nY+2KJMhebaqCnxEtWUYMumBKtMUg== ARC-Message-Signature: i=2; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793753458; h=DMARC-Filter:DKIM-Signature:X-CSE-ConnectionGUID:X-CSE-MsgGUID: X-IronPort-AV:X-IronPort-AV:Received:X-CSE-ConnectionGUID: X-CSE-MsgGUID:X-ExtLoop1:X-IronPort-AV:Received:Received:Received: Received:Received:Received:Message-ID:Date:User-Agent:Subject:To:CC: References:Content-Language:From:In-Reply-To:Content-Type: Content-Transfer-Encoding:X-ClientProxiedBy:MIME-Version: X-MS-PublicTrafficType:X-MS-TrafficTypeDiagnostic: X-MS-Office365-Filtering-Correlation-Id:X-MS-Exchange-SenderADCheck: X-MS-Exchange-AntiSpam-Relay:X-Microsoft-Antispam: X-Microsoft-Antispam-Message-Info:X-Forefront-Antispam-Report: X-MS-Exchange-AntiSpam-MessageData-ChunkCount: X-MS-Exchange-AntiSpam-MessageData-0:X-Exchange-RoutingPolicyChecked: X-MS-Exchange-CrossTenant-Network-Message-Id: X-MS-Exchange-CrossTenant-AuthSource:X-MS-Exchange-CrossTenant-AuthAs: X-MS-Exchange-CrossTenant-OriginalArrivalTime: X-MS-Exchange-CrossTenant-FromEntityHeader: X-MS-Exchange-CrossTenant-Id:X-MS-Exchange-CrossTenant-MailboxType: X-MS-Exchange-CrossTenant-UserPrincipalName: X-MS-Exchange-Transport-CrossTenantHeadersStamped:X-OriginatorOrg; bh=zr5Hg6Kl+4dEvxveWs1H+YzdBL02THFonpBsSi3VH74=; b=ODHypVh5bMjbVrqmNyoXxhUDlL/77eO+ngN+TSvAuxFad11CTyp4mS84kViPXyY5HsNM 9aMOAyUGvV43OedqZ83Br3Lqo3VNh/3fSYlAXeipYvOFxwzWRIaGWkM2gxFJepZhzWLwz gK40OPESEKWSZdL0rjN6SQcK5vxBnqAjEJNwk0F+HazJeVAfqtDD5h5KQ1WY/H4UYpE/a sBF70bOt0togIzNX6rX3CGYnCBGXW0urzb2I1jfNmZO0tXptcGK9KWGVcoEyOrZwZeJdt TG7olrKs6LGG9XSa2MuQ/tN/qu+aZ/AYJze6Vh3QEmA+jXTBrgs3NvyWEPD2h7xb6ZA== ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=mQYS378A; arc=fail smtp.remote-ip=192.198.163.8 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 909A1606A31B for ; Wed, 4 Nov 2026 00:50:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 909A1606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=mQYS378A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1793753457; x=1825289457; h=message-id:date:subject:to:cc:references:from: in-reply-to:content-transfer-encoding:mime-version; bh=8UY4A8KJHZwrG6zFjg1LXomIndeVxY+xpaYNtFiD4Vc=; b=mQYS378Awmue/TuctdW4hEj1Tl5exrZmSsKPLlgS/+O5RdW/RGo1ye6m u2VREH0HdyxkXmXwnC8ORrk6e4AQ75+aKokt+cXm0XLyCa0wP7z25SIte nnYnTLZGFXeinKD5BDCksbzH13TKQqBxAPDBi8kZ6Uu2HNM21V2Nt320Q ruOpeM9fQ+CDRQh16InQY0ZG5eEGM3blBoZmP6247eTAvuHVAQCXb5B2W jOS+ENebztHkkh9z9oAe0sz0q6jeXU/uj+YpaMSsosIFukO8fboDYbv4U HsrK4jvU7YrtbXNONodgBqUQxl9H8Yc+SZjrux0JUpkBL2H344LOi5rRV Q==; X-CSE-ConnectionGUID: 7SmYfvAQTsCf4NB5fmibIA== X-CSE-MsgGUID: Rv3aJa1xTn6zbkTdHrYoeg== X-IronPort-AV: E=McAfee;i="6800,10657,11955"; a="2385811" X-IronPort-AV: E=Sophos;i="6.27,194,1787036400"; d="scan'208";a="2385811" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2026 16:50:57 -0800 X-CSE-ConnectionGUID: YMXHWCOeTTqM//XjLj36mQ== X-CSE-MsgGUID: 8wCg2Hj2QkW80k7m+37uyQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,194,1787036400"; d="scan'208";a="6398313" Received: from orsmsx901.amr.corp.intel.com ([10.22.229.23]) by orviesa007.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2026 16:50:56 -0800 Received: from ORSMSX901.amr.corp.intel.com (10.22.229.23) by ORSMSX901.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.56; Tue, 3 Nov 2026 16:50:56 -0800 Received: from ORSEDG901.ED.cps.intel.com (10.7.248.11) by ORSMSX901.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.56 via Frontend Transport; Tue, 3 Nov 2026 16:50:56 -0800 Received: from BYAPR05CU005.outbound.protection.outlook.com (52.101.85.27) by edgegateway.intel.com (134.134.137.111) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.56; Tue, 3 Nov 2026 16:50:56 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=HES8oWosxVE9Foq88qQRZI0aEEbYt2pCSl8rYhUVFze3d8dujZQy3uU8fxeEyDe8RlGzMSKG9e9y3i+/Epd62s7t+IH94i6Y6OHF/zjqyCurXXjqts6dVVtbPu9wPsZe5EaSCDMpEDgT3/gY0Xfc00dJ6t5YDfJlkz3E86WsDapY4lsEo2Y9/flKKQtYIH7nI35tV+iz3TuNmH6ZBw5MDDZ769Wdtbckhm0E+IwLg8M3cOPTdyU6s9rkpJ9G8puM3XRS8VbOkxV/v4TZc5N+vk6EXp465nALbwQxc5ecglXUrSFREGsckPInjzAhDkASC88/SbWIOjhg/WSCgmndIA== 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=zr5Hg6Kl+4dEvxveWs1H+YzdBL02THFonpBsSi3VH74=; b=nBjwDVz6IFtPfQZXkvlAKIpv0BhkDPSGUY1r3kaXtpBZt/YSiy8m/lg/UJ3EftNxOc1CxpqbB9iYwdf94vZIYrubEJlbJWUWg1RAhtKiwzJBIX2x6KaiMCZ7oDdOa2dPpxwoNl/+qJEfGoYV4MjytpSgYzyG6RkFq0Tkb7S1k9RJxulZygMjW6v2jgumqx0XR/oL64RlzcPykNMh+j69sLhJOXIAXYe3pkO34ENwUVUwpn8KeVe4xThI3DXWgyijGeR9d2rrdQmOJfROZe1JqNKM8sqiUBaV7+MiZGcXQkcwR80vXvsd9pnRDL+uRx0NQ8pigFBLDoU1K/bkZwBNCQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Authentication-Results: mx.microsoft.com 1; dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Received: from SJ2PR11MB8370.namprd11.prod.outlook.com (2603:10b6:a03:540::20) by CH3PR11MB525758.namprd11.prod.outlook.com (2603:10b6:610:34d::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.592.8; Wed, 4 Nov 2026 00:50:54 +0000 Received: from SJ2PR11MB8370.namprd11.prod.outlook.com ([fe80::b6cf:ce77:3cdf:7cc]) by SJ2PR11MB8370.namprd11.prod.outlook.com ([fe80::b6cf:ce77:3cdf:7cc%6]) with mapi id 15.21.0569.011; Wed, 4 Nov 2026 00:50:54 +0000 Message-ID: <7df8d7eb-2518-456d-8905-e86dc1dc695d@intel.com> Date: Tue, 3 Nov 2026 16:50:52 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v2 03/10] arm_mpam: resctrl: Do not fail CPU online when domain setup fails To: Ben Horgan , , , CC: , , , , , , References: <660ffee2c7d069aed25c2757c51e12b28318bbc7.1792443633.git.reinette.chatre@intel.com> <2008960d-b5d3-41e5-b9c8-29c5d54c2c3e@arm.com> Content-Language: en-US From: Reinette Chatre In-Reply-To: <2008960d-b5d3-41e5-b9c8-29c5d54c2c3e@arm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW3PR06CA0021.namprd06.prod.outlook.com (2603:10b6:303:2a::26) To SJ2PR11MB8370.namprd11.prod.outlook.com (2603:10b6:a03:540::20) X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB8370:EE_|CH3PR11MB525758:EE_ X-MS-Office365-Filtering-Correlation-Id: aff31e52-8075-4bad-4b99-08df3a0dae62 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|366016|23010399003|261102123227099003|5023799004|11063799006|4143699003|261028144727099003|261009223027099003|261021121427099003|261026140227099003|261022105027099003|56012099006|261026121527099003|261022075727099003|22082099003|18002099003|10067099003; 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:SJ2PR11MB8370.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(1800799024)(366016)(23010399003)(261102123227099003)(5023799004)(11063799006)(4143699003)(261028144727099003)(261009223027099003)(261021121427099003)(261026140227099003)(261022105027099003)(56012099006)(261026121527099003)(261022075727099003)(22082099003)(18002099003)(10067099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?K3EydFMvREJiY1E0SW1YTThsYVVWWUFjeU5ydlljcGQ2eUtuZzF4WmtxTGs5?= =?utf-8?B?MlFMUmZacWtGTjNyTTlpMTkvMnlQdUZNaFpOc1RSTnI5OFpDQ2t2UmpOWGQy?= =?utf-8?B?SkpvNnFxekxNRkFxbzBwQUIwTElGMWF5SGNRNmVkTWhyTVJmeG9RUmVmVVlV?= =?utf-8?B?MFVpNlZ4VzBEWHBXY0ZyUmNmMDlyQk1XS0hDbndIeTgyYkhQdGJ1M05IWXdC?= =?utf-8?B?SmpBWURZZHp2QWdaaVR3TTNTWEJSVU9wS2FCQnpDY2tRaHNTbFAwN2xKVFQ0?= =?utf-8?B?Snh0K3VaSWlXK3Y3WVpRcTFsM1J1ZGJld3NvTGFlcDB5a1FqSHZ5VUJaS2pB?= =?utf-8?B?ZTVheTRkZHBMdzRpM1pGTFBkejVEMCs2dUxLOUVpZ3dvK2kwc3I2MDJ2YW1u?= =?utf-8?B?M25BNCsvdHBiL3FQdjZxc1V4N3lDS1JFUW1rYnJQVTVZdXVPS28rWkEzbUtk?= =?utf-8?B?aGlOandiUkd3ZUczOGp2dTROdmNPU29kaHBzQ2lHcXlJRnRnTzFLNWdEeFI0?= =?utf-8?B?MWFlbUNkRnZ4Q3RuaU5odmpiejNTZFJiKzNVNlNnbEJzQ1pOemZLZ3dKVm1L?= =?utf-8?B?ZWwvcVJOamE2bmtjM3NsMCtXT1FVTlRJT0V6bUprTWdUeDdGVUd6SVpPRkRM?= =?utf-8?B?SVhlaVdGNUxmUEJaUFQ5aVZvYzErdm9CRGhhUG1MVnBDdnlkZDc4VHVCNXdi?= =?utf-8?B?V3JncVlDR2doNFR3NFdEWmZydDAzNmFQYTBCR2hBT1VzMGdKR2pRMFYvM1RU?= =?utf-8?B?N0JUU1g5WGZxQXNXeWtxUUxVejJpZzd0MXg2L0xuVDdKUHpSVXhHUDBCeTZ4?= =?utf-8?B?QlkyMjFJc01lSEpzSDZCeHlQVVQ5NDNkVko3QTYzS282VlVHUEs4M2hCejFG?= =?utf-8?B?Qy9YTURSR0J5eWE2NEFqN2lZN2x2NDRGOUliaXVUVG0vSVJ2elNKOXVLM3R1?= =?utf-8?B?N1p3TE1DVlB2cG1YWU55YWR0ZzdTUWU0bmFVRGttd05ZaVEzcDhvbTdROVhC?= =?utf-8?B?MWk4VmJ2YnRnL2UvcDNMT2d2RjFoVTNsL0NRNzVhbUNtNHR3K3R4US9qVXR3?= =?utf-8?B?eWVOMW9xQ0xjaDFsVjZ0dkMwUlM4UG5YMTVOSmN5TVljNGUveGt1WnJER1pY?= =?utf-8?B?bStXWjJBdjloUUhTMFNDc0JmeE5TMngxYk9qUTFraXNTckt4SUFTeUg2VUla?= =?utf-8?B?dXAxUzFmRGhnWURXRFFrVVZaVWNFWDZrcnovM3VtSmNLdjJrbmFKNmk3MWJY?= =?utf-8?B?alROTWVSejJpV0sxR0NwUlJieHl3ZEJ3MjRFTG9hY0tFTnZMSzJwZURGTkxO?= =?utf-8?B?VXRqZWIzaXNjNzdUUyt2NlhvZGhlcWtQeHQ4RHNVNGZVMkxYNE9Ea1pFSVlu?= =?utf-8?B?ZXppQUNNU3VrR2FOdUhIMlVPYUxwSm5IMnV2dDdTWmc4RHRIZHNBd0Nza0dE?= =?utf-8?B?dkE5dmcyMVJWdnI1SlIvRStsWlQxQW5Mb2R5Y3pvRis4QXRKY05qUzlJbW4z?= =?utf-8?B?dUlWN2h2YytJK25CNnBzZTRkVEozbXU1WU5TZDR4OUw5MUM2dHpEM3F5bnF4?= =?utf-8?B?Y09WcEtXUFRKWXJWenY1SGtla1JJTTZ0ck42MU8rZ3ZCWFNsN21RWWYrUnVX?= =?utf-8?B?bGNKcldJbVFRUmprSm1HOWRjZk1nbjlvbmF4VDhUQzY5dGZpWFlMcG1DQWto?= =?utf-8?B?Q0o5SFVQRmNYZTJXOXdUb3c2UDEvVGt4bS9KeHlseml2NUw5TU5Icyt1czhL?= =?utf-8?B?UFRibHhVdmdycjFhaGV4aWtKVUJkczVFdVROV1pDQ2pxK2l5SzN6QW5LREVM?= =?utf-8?B?SHFZaWV5dnR0VFc2c3Buc3Fnc1dDc1FiTEZ5a1JJaDErSG9UbHFpSXIrVFhT?= =?utf-8?B?ZlpPTUd5dnRpdUEreUdyZ1dKdDVVd2RLR0o1Q1laWXBmMWJWdnhiNGx1QnBV?= =?utf-8?B?WnhSbUFETHMycEkyKzFQeThicnIrV2EzelZVRU9WY3VUWW9Tdnl2L0EweHNj?= =?utf-8?B?d3VOVXRxMmZlQWxZZUY0VWYzZmRBNWR2c1BUTmVobG94L1owNVh5MGdxaTlJ?= =?utf-8?B?VnQ3TUlUaXQ2MHZTVGJaenZBeDM1ZnJCZEFGajZEcUIvaWEwK0pYc3J6S2pS?= =?utf-8?B?dzc0WGcvS0pWK1A2SndkeUpVUWJCRUNvMUhSWDd5N0xGZzFaeWROVDZyMnhJ?= =?utf-8?B?L2ZRWTBqS0oyMHo1NE05NDNYS2pyenVocytQNDU1WFh5R0hlQ3VhdjZnYlFr?= =?utf-8?B?TzYzWDMyaU95eFc4dkhqWWlrUDZaVytEK2VkTkdSSEZhM3JiNERFWk91Y2pK?= =?utf-8?B?YnB0RXNPQXYzWFZ4R3N6dEsxR3YxTkNEeklNS3VJZFBYUUovNlcwREp2dmYw?= =?utf-8?Q?uTT5JpnR9dMfImF8=3D?= X-Exchange-RoutingPolicyChecked: XkD4oNZkdMxMoDJJSq+2tIiZkqsBnn08bT3bnDp0iar5erVwXZGB9K8AcnJyTNILXjLnO+D2PNLYpqETR83XBtx0HOz/UAKw9pySJtjHeuSvaVmW+YIw2bSSyutJk3W1+hMozS0Su5bq10qv+x37S6c0FueCuULgNzy+Oha09zs3uOS+mKuowjo+sGiW3d6kzWai4OFTU0tdBWjGm84O4BxUK4I2A2Iv01Nukw/ZjsFWwPV605F8Qc+4ZIrbRViCoXWc8cFzGS42QPoUUJ0rlNJzaZfeUvwwlaiH0jfiwcHeq8/XysdFIdbCMYVokVhPWmU0A6sR7TM2JyzpLPrfFQ== X-MS-Exchange-CrossTenant-Network-Message-Id: aff31e52-8075-4bad-4b99-08df3a0dae62 X-MS-Exchange-CrossTenant-AuthSource: SJ2PR11MB8370.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Nov 2026 00:50:54.5708 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: gQXkBOaeP9IGF4OQd9pRD883yOj9Kix8b1iORQrYXCqzfz1tpTxFoSyNTQCLajLH2HbMUjZAxYw0s9vG2Ezi3ARicWSqMuewVQhSnAX58no= X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR11MB525758 X-OriginatorOrg: intel.com Hi Ben, On 11/3/26 7:38 AM, Ben Horgan wrote: > On 19/10/2026 23:07, Reinette Chatre wrote: ... >> diff --git a/drivers/resctrl/mpam_resctrl.c b/drivers/resctrl/mpam_resctrl.c >> index b07e5dd895dd..dc442851fd7e 100644 >> --- a/drivers/resctrl/mpam_resctrl.c >> +++ b/drivers/resctrl/mpam_resctrl.c >> @@ -1615,8 +1615,8 @@ static struct mpam_component *find_component(struct mpam_class *class, int cpu) >> return NULL; >> } >> >> -static struct mpam_resctrl_dom * >> -mpam_resctrl_alloc_domain(unsigned int cpu, struct mpam_resctrl_res *res) >> +static void mpam_resctrl_alloc_domain(unsigned int cpu, >> + struct mpam_resctrl_res *res) >> { >> int err; >> struct mpam_resctrl_dom *dom; >> @@ -1631,11 +1631,11 @@ mpam_resctrl_alloc_domain(unsigned int cpu, struct mpam_resctrl_res *res) >> comp = find_component(class, cpu); >> /* class has no component for this CPU */ >> if (WARN_ON_ONCE(!comp)) >> - return ERR_PTR(-EINVAL); >> + return; >> >> dom = kzalloc_node(sizeof(*dom), GFP_KERNEL, cpu_to_node(cpu)); >> if (!dom) >> - return ERR_PTR(-ENOMEM); >> + return; > > Do you think a warning is warranted here? Sure. I'll add a warning here in the next version, propagated in later patches to mpam_resctrl_add_cpu_ctrl_domain() and mpam_resctrl_add_cpu_mon_domain(). > >> >> if (r->alloc_capable) { >> dom->ctrl_comp = comp; >> @@ -1678,7 +1678,6 @@ mpam_resctrl_alloc_domain(unsigned int cpu, struct mpam_resctrl_res *res) >> } >> if (!any_mon_comp) { >> WARN_ON_ONCE(0); > > I think you could fold in your patch 7 here. > arm_mpam: resctrl: Warn when no monitoring component is found for a CPU Will do. Reinette