Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: [PATCH 09/12] swiotlb-xen: drop DEFAULT_NSLABS
From:   Jan Beulich <jbeulich@suse.com>
To:     Juergen Gross <jgross@suse.com>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc:     Stefano Stabellini <sstabellini@kernel.org>,
        lkml <linux-kernel@vger.kernel.org>,
        "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>
References: <588b3e6d-2682-160c-468e-44ca4867a570@suse.com>
Message-ID: <15259326-209a-1d11-338c-5018dc38abe8@suse.com>
Date:   Tue, 7 Sep 2021 14:07:47 +0200
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Thunderbird/78.13.0
In-Reply-To: <588b3e6d-2682-160c-468e-44ca4867a570@suse.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
Received: from [10.156.60.236] (37.24.206.209) by PR0P264CA0247.FRAP264.PROD.OUTLOOK.COM (2603:10a6:100::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4500.14 via Frontend Transport; Tue, 7 Sep 2021 12:07:48 +0000
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: ef7924f7-8733-4ea4-740e-08d971f81c50
X-MS-TrafficTypeDiagnostic: VI1PR0401MB2335:
X-LD-Processed: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba,ExtFwd
X-MS-Exchange-Transport-Forked: True
X-Microsoft-Antispam-PRVS: <VI1PR0401MB2335403C43EFB474C5E60388B3D39@VI1PR0401MB2335.eurprd04.prod.outlook.com>
X-MS-Oob-TLC-OOBClassifiers: OLM:626;
X-MS-Exchange-SenderADCheck: 1
X-MS-Exchange-AntiSpam-Relay: 0
X-Microsoft-Antispam: BCL:0;
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:VI1PR04MB5600.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(39860400002)(376002)(366004)(136003)(396003)(346002)(2616005)(8676002)(5660300002)(38100700002)(54906003)(110136005)(956004)(66476007)(66556008)(66946007)(4744005)(26005)(316002)(6486002)(31686004)(8936002)(16576012)(36756003)(4326008)(2906002)(478600001)(186003)(86362001)(31696002)(45980500001)(43740500002);DIR:OUT;SFP:1101;
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?aTdRcll3RnQvVlhlWElSakw0S2NidjhxQXF5dkVHd1J6bm1KVnM3N3kxclM1?=
 =?utf-8?B?YzZ6NzNOTHNjYlA0MEMzTy9FK1ZSc1hhZkdJcWw2SG5sdks1cGsrRnlGYjlw?=
 =?utf-8?B?YzB3UXRrRTBqS3ZiMDIzZ1BNclp3UWo0TG5MS1dIRDBVbE5uNkxUWFpQbVBj?=
 =?utf-8?B?UG1OVml1NExEQ1JYL0hMdHBjU1UzU3N5RWVQay9yZURjOG4wc09JVG5pdFNa?=
 =?utf-8?B?VXRCeGxwUnBHYUhaRWNMTEFEWTk3U2hrSzNBZzhEQStVVXVqTk9kaW9MSkJP?=
 =?utf-8?B?aXN3UENzSHc4ckYvdEREbWdQM1lWVEVBaXI1eEdzRTdvTEQ2SG5MVmVEN2tW?=
 =?utf-8?B?YXBOYTZhQ1Byc3ZzOUpRU1FQMkZjYkwxaGptdHlpRXFQNDZiMjNSZnFFUVUw?=
 =?utf-8?B?NElNbHVmeFd0djdRY0tUaTZNdHBqbUxYUzhDaFJ5bmh0M3BnbW9ERXdya2RW?=
 =?utf-8?B?Y3FGQXFYZ0toM2N5ZlRadTJ4YWhsbXJDaHhrTlB0L3QyQlV5R29Ec0Z0aHVP?=
 =?utf-8?B?TDZ0SitoeFdZQjhhU0pxZUNRUjhUbEp2WmpIYjJhbEo3MTFOMSt6Nm9IVGxI?=
 =?utf-8?B?K2xSQ1hGL2trakVaUGNzYVVPSXNibGo0MUNUMDA0MldOa0U2Nmp1VWptMUFa?=
 =?utf-8?B?cnFwZzVSblEya1VGS3pCd0FtNGRUWUhyMVkrSXdYeFNob2FoNHB5NUlobCtF?=
 =?utf-8?B?SW90SndlNW4vNEJDcXNiTTR2RTQwMnRxTmpKT2pmRE0yOHBvL3B3cHRyQWI4?=
 =?utf-8?B?dGZNVUN1VzN5YmkxSU5lY2xmSDI5SEt0NlVmbmwwUjl1TXlvUjdlSHdzM2pU?=
 =?utf-8?B?Z3k2bkxELzBmZDY0bEVrVVh3bE1taVBYTDZOcExNVUsvaDU0Ti9YV3RhWnJl?=
 =?utf-8?B?R1ZtbThnSDNDWno0MXVvejFRdm1xN0JtN0Z0VW4rT2MzSlR0RWFTKzFhanlU?=
 =?utf-8?B?c1ZUeFc4T0Z6bG84eDdkdDV6ZVgxbFpXK2M5cGtJaHpYREg5bVFiYTFPemZj?=
 =?utf-8?B?TWFucjNXOUJPTkcveERORS9qQitYMHZZak5GMmJSNVpkRnZsYXNDajhDbUJQ?=
 =?utf-8?B?RlNLZ2loczUvbVdERVU3aHM0SnpwR09NaFBkVFJDbXZmQTMyRjJXT09pRU5o?=
 =?utf-8?B?Sk9NMDlHMytXMDBBVDVKdjM4U0tUM00rc1JuYVd4Tk5rdTl2Sm93M29icjh0?=
 =?utf-8?B?MnJmV1ZvY0syLzBnZHdXcG5ZQlBDUFR3V014SUZZMHRialczZFFwVy9NMU9W?=
 =?utf-8?B?dzVPdVYzS0tnVWE4NUxPVjFVK3B2alpIWWk4eXhkZldHQXBFaU0rVnZOVVZW?=
 =?utf-8?B?VnhDWDJ5eUtCZEFyU3ZGTE8rWENkcHdJZ1VkZ0JZMzJ5QUNManpSVTNzSTMv?=
 =?utf-8?B?dW5vNE5EamNyY0RKVXhWeEdVNC9ITkhqOEp3Sk16MkxSVytXamlrWmVjZzM0?=
 =?utf-8?B?TWVlbWk2ZDBhVzQwVS92RW9wMGtjV2FxVnZrS1UwK0k3dzFiaFNZcGorZ0tN?=
 =?utf-8?B?TG5oRHFKSS9ycFBiV1J3eDJ6eG5OUDNlVlFGNnlPY1BwejlxallMUU5lM3kv?=
 =?utf-8?B?MTlINWFvOGtWbWxsR2p3dDBCWXZsN1p5dWRIeU5FT1EzVElyYjlBZlZ0dU5u?=
 =?utf-8?B?VURUczRiSkRlaGFwVGovc1A3QVhFR3F5aDZjY3FaTHBUNUI2ODA3c2xkSDU3?=
 =?utf-8?B?QnZLQXBkTHl4L1dDeUI1UlZwY0c5Um5TSWJPSFYrb01TSStXNFoyRVN5S2o3?=
 =?utf-8?Q?iqC3YEIiT/tUSyh4haYpCigcaQNQuviBwl0CqEP?=
X-OriginatorOrg: suse.com
X-MS-Exchange-CrossTenant-Network-Message-Id: ef7924f7-8733-4ea4-740e-08d971f81c50
X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5600.eurprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Sep 2021 12:07:49.1837
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: 8BKWMzefbSY0LRJXWx2Zs2vQu7Is952TijJ4DX9+OI2nh3NvAJsJ3ZUUGA7RR2sYEu0sj7615QNzEj5OnFIiUA==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0401MB2335
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

It was introduced by 4035b43da6da ("xen-swiotlb: remove xen_set_nslabs")
and then not removed by 2d29960af0be ("swiotlb: dynamically allocate
io_tlb_default_mem").

Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -152,8 +152,6 @@ static const char *xen_swiotlb_error(enu
 	return "";
 }
 
-#define DEFAULT_NSLABS		ALIGN(SZ_64M >> IO_TLB_SHIFT, IO_TLB_SEGSIZE)
-
 int xen_swiotlb_init(void)
 {
 	enum xen_swiotlb_err m_ret = XEN_SWIOTLB_UNKNOWN;