From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,PDS_BAD_THREAD_QP_64,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 547A6C43470 for ; Mon, 10 May 2021 16:59:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 419B661421 for ; Mon, 10 May 2021 16:59:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232252AbhEJRAz (ORCPT ); Mon, 10 May 2021 13:00:55 -0400 Received: from aserp2120.oracle.com ([141.146.126.78]:41378 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231805AbhEJRAv (ORCPT ); Mon, 10 May 2021 13:00:51 -0400 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 14AGtC06079446; Mon, 10 May 2021 16:58:56 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : references : in-reply-to : content-type : content-transfer-encoding : mime-version; s=corp-2020-01-29; bh=yWaflRzHqISIK2zve/6ZIE08BbX8IA2HEMcWf8/0+b0=; b=kEj1XN5NoWIROIaa0QM5qDKT7x7SB/eKOCZYDmrxXGs1ahu9ONzHTimkjuQAiB1Izy5/ vOzgztlRTYmD8NZHPGxF77QN/sbusdqsQFWiPwAcNpEkkx+2Tk26W4nNkZsKup/blu6W PX/zGdFaCTZdu2IUxQvlFbqsE77VBXmb1j0G9tTIFg3mBw8bj/NTD0A6zN0xxgPUR6bi unOlg+FhVxECwNuZx5Lj3LsrcYE0pElaTuOSoLc8TAXDxFtQ6jTs02morLuFsIEKNTsy 1RQzPKdK+aiJEsPyUHN5eA0fopHbBXlF6e3y4QShj5U5TjH50LH78KdMQ+fhddftNd4g sg== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by aserp2120.oracle.com with ESMTP id 38djkmbxgs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 10 May 2021 16:58:56 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 14AGucHG109288; Mon, 10 May 2021 16:58:56 GMT Received: from nam10-mw2-obe.outbound.protection.outlook.com (mail-mw2nam10lp2103.outbound.protection.outlook.com [104.47.55.103]) by aserp3020.oracle.com with ESMTP id 38djf74j6a-8 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 10 May 2021 16:58:55 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=TXknPFThCRoHdbCkl3oVYSx5Dn+FXB0tT6cRsVmD8AZdBJQ2nutd/QVYstcQGQq4rEymICv6CuPBbVeUmkU3VRvuJaCpaCpxJRyg/GG6eF/CoDRBTOcc5irI2I3zBTa3NvTlWIaJNVNMWxUeGSIkvJuoGbI8pZ1M82/Jdi3ak8cH8LA4Lm/q8rYh4PWXzl8g5Eba/wcj2Yrqdx6/FoM3CO46sURai83ZwEvCzL3VIbBMzScOcL95X9ubGUY4YsjiJlKq1TfEQHwasoE4Bn4cDoHhh2ncWNxPko+kxaBRYnUM9B3zSSh4++auTQeKJeGtJaVfkEu+FosnUYLwxkP0Vw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=yWaflRzHqISIK2zve/6ZIE08BbX8IA2HEMcWf8/0+b0=; b=QC/wygyWJEMKfvz5Fu8sKbiBzacwB34WZpyXsBPl5Sl0+WTREgtjBbHF6zQtNwsDHoNPW5L0YIov/kbvXBu5iYUxVO/uMlHH3dVmTfPX4ZKuyVnvbNRq5csq1bamUiVy5xNNQuiLYpqkX3LD2vr9x83Vr67MAVs9cioRwoeA3Bz662qun4kE/1sd+S0c7ecJKw7LQEmsNGNXg9EmZ3yQJC3kFwHdFT6QhvCYV0pzpiJ23XARXPeZo4FPaCGxPTVMf+4sX3O3fssKqpQ1mVFCPskdFYygRUT7LRFZGTTqS7VH2ldnQgxH+l0YXmEHdSAg0R8HHTCLMForkVrKgAcYdg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=yWaflRzHqISIK2zve/6ZIE08BbX8IA2HEMcWf8/0+b0=; b=UrLi83XCSohvhznXEKix7zlhnDyMBjEbIlCi3OzYVme3bno4EALMOid+H+1fY9yTAm3ZIRqEbNKLx1eYEGMB//QafOGe5VDDnL4RNfGGw8ItPnR7JyXsXmeQhNFdJ28vNace+FISYGPu8NDzbTnigHGdrjxC96dKz+VQLZ4cPnE= Received: from MWHPR10MB1582.namprd10.prod.outlook.com (2603:10b6:300:22::8) by CO1PR10MB4769.namprd10.prod.outlook.com (2603:10b6:303:94::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.25; Mon, 10 May 2021 16:58:52 +0000 Received: from MWHPR10MB1582.namprd10.prod.outlook.com ([fe80::353a:1802:6e91:1811]) by MWHPR10MB1582.namprd10.prod.outlook.com ([fe80::353a:1802:6e91:1811%8]) with mapi id 15.20.4108.031; Mon, 10 May 2021 16:58:52 +0000 From: Liam Howlett To: "maple-tree@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Andrew Morton CC: Song Liu , Davidlohr Bueso , "Paul E . McKenney" , Matthew Wilcox , Laurent Dufour , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Vlastimil Babka , Rik van Riel , Peter Zijlstra , Michel Lespinasse , Liam Howlett Subject: [PATCH 07/22] arch/mips/kernel/traps: Use vma_lookup() instead of find_vma() Thread-Topic: [PATCH 07/22] arch/mips/kernel/traps: Use vma_lookup() instead of find_vma() Thread-Index: AQHXRb3BEChK21xvUkijxJY7Dadk1A== Date: Mon, 10 May 2021 16:58:52 +0000 Message-ID: <20210510165839.2692974-8-Liam.Howlett@Oracle.com> References: <20210510165839.2692974-1-Liam.Howlett@Oracle.com> In-Reply-To: <20210510165839.2692974-1-Liam.Howlett@Oracle.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.30.2 authentication-results: lists.infradead.org; dkim=none (message not signed) header.d=none;lists.infradead.org; dmarc=none action=none header.from=oracle.com; x-originating-ip: [23.233.25.87] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: e59029f3-6244-4912-cd7e-08d913d4e395 x-ms-traffictypediagnostic: CO1PR10MB4769: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:4714; x-ms-exchange-senderadcheck: 1 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:MWHPR10MB1582.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(346002)(396003)(136003)(376002)(366004)(39860400002)(7416002)(66476007)(64756008)(1076003)(110136005)(478600001)(38100700002)(122000001)(54906003)(6512007)(186003)(2616005)(107886003)(36756003)(66946007)(66446008)(86362001)(66556008)(4326008)(76116006)(71200400001)(6486002)(83380400001)(6506007)(8676002)(2906002)(316002)(26005)(8936002)(5660300002)(44832011)(91956017);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata: =?iso-8859-1?Q?//2Vd/d8a66brM1Luy/xWpag8RyAwfqalBqyJ8NQrLt+JhrSBmUJKmLVis?= =?iso-8859-1?Q?/Y89DHQcTBlxNzX8p66YnQJw9JW9SsOC5kdu9cANAecoYF2YkDdQS2P9Ws?= =?iso-8859-1?Q?xsPSp6dkEElqjv0UTqvlk+YcT98kqfYbusre7CPYNSb+UKz84Zg/rMkzPW?= =?iso-8859-1?Q?1vQkkfhCwWGFluIB48Xo9C1lilT+nH8PMwEg66iUrZTqM/oktURUWw71sW?= =?iso-8859-1?Q?Dihif2YNky0w+EODKCFQByHAXiGxBb3VErJXllMNvP2ZUOohy1JGEeqduX?= =?iso-8859-1?Q?v/0mrlAY83SW74PMS1KYxcfiIiK+bI6A3Y/gSYK+A6vzXln7Hj95sNzNpf?= =?iso-8859-1?Q?BFvYSbqtdzAxD3GbPweT1Djj17VxG8s6Rl3I+BtGNfMtWUP7rXiqEZDrsu?= =?iso-8859-1?Q?p+wKNwCIG2H3JKP7tCy1IjpWTb2GdqsvUpAr1DFqpkutyk38NZHg4ulyUy?= =?iso-8859-1?Q?lxwOlViNnrXtMg6U/+NegiYhhplWeIItV2HU56oYW/utcd7c5PkVKgR/0Z?= =?iso-8859-1?Q?BCjNtgeUEeWFE1wxy5LR0xfLCy3EbqKZkHZSUH1+EU17TGu9Kad5lGpUIq?= =?iso-8859-1?Q?9+kQjTirp/3m6vFOuMnVlebwVyPEAC0qNPXVqANA26sjauaW2qNziCPni2?= =?iso-8859-1?Q?oVPT3tRUrHfAOgdhZQAZYn5WwDzbWAkVVHyZ97RZu0RcF6kODAQ2oHSB1G?= =?iso-8859-1?Q?+h3H4SPcmNVvGdeGJBmdvxgJ9uZ0Zqfj7m5JEIKujBhxT7mTVYy5cH7CF4?= =?iso-8859-1?Q?LRqi+NY5ianf5MjtZuXcyT0CZ/KpiWfQ7wXchrpSZRkPBQqxtqoXX65TTz?= =?iso-8859-1?Q?eIwZEkClLncGuqVXFTG9v2PqJ6l7H8RA9QKP4HzgMqHDD6LPmEEMtXjssA?= =?iso-8859-1?Q?AYYDYbfa+ccPQ5hyCHM7IIocxK3Q8K5iO/XhzcQ0c3gl38c0ce04okJkcD?= =?iso-8859-1?Q?WqoDbjAoXATBl7KNO1aHdYbaHqg2XapyIXMXq9ypiC91MaQF0a9OiO3Eir?= =?iso-8859-1?Q?LxQ+2rN2oDY9JBVF+jkEZSod+dqLXCZSokXf74LVhKLGNet5yg5k19iftt?= =?iso-8859-1?Q?m81tIuHVmqoZnybbPgRBqsm20KFaK+3xIM0PSvFx0kHN0Ax50P9PVxogl8?= =?iso-8859-1?Q?BXSBMfD6yXwgSZJau4SvD+NdSKyjmGwWGF5hVlV4/wawkKelMZMwU1O2Sw?= =?iso-8859-1?Q?/NOGxexbWQawjvGK9ZWrlhfvFlo0aW0gkf2CQti7+ifgUW1niQUHaxjTFq?= =?iso-8859-1?Q?rowwMPK+hqjGIx8M06iLnLGHWyr63N+UEuXDUs8Ved0lsPjrKKgGPPXMjO?= =?iso-8859-1?Q?aPtUJKEyaIYKauwdtg3uraYkIydSNxOZMpBbK9mC9WS5KJDLm759RHSWqf?= =?iso-8859-1?Q?U+gklX4eBU?= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MWHPR10MB1582.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: e59029f3-6244-4912-cd7e-08d913d4e395 X-MS-Exchange-CrossTenant-originalarrivaltime: 10 May 2021 16:58:52.0406 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: VPccSOI20HoPdqo4187cXnh451XW56X/6xxq10rJqmSmDC/xLOygVa0dHfneW35nns17Tf7VlhsxIri/9n2BPw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4769 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9980 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 mlxlogscore=999 adultscore=0 phishscore=0 mlxscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105100114 X-Proofpoint-GUID: c7PCJiAuMYQssyJeYicK4Lx_ywH9ba3O X-Proofpoint-ORIG-GUID: c7PCJiAuMYQssyJeYicK4Lx_ywH9ba3O X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=9980 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 priorityscore=1501 suspectscore=0 clxscore=1015 bulkscore=0 adultscore=0 impostorscore=0 spamscore=0 phishscore=0 mlxlogscore=999 mlxscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2105100114 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use vma_lookup() to find the VMA at a specific address. As vma_lookup() will return NULL if the address is not within any VMA, the start address no longer needs to be validated. Signed-off-by: Liam R. Howlett --- arch/mips/kernel/traps.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 0b4e06303c55..6f07362de5ce 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -784,7 +784,6 @@ void force_fcr31_sig(unsigned long fcr31, void __user *= fault_addr, int process_fpemu_return(int sig, void __user *fault_addr, unsigned long f= cr31) { int si_code; - struct vm_area_struct *vma; =20 switch (sig) { case 0: @@ -800,8 +799,7 @@ int process_fpemu_return(int sig, void __user *fault_ad= dr, unsigned long fcr31) =20 case SIGSEGV: mmap_read_lock(current->mm); - vma =3D find_vma(current->mm, (unsigned long)fault_addr); - if (vma && (vma->vm_start <=3D (unsigned long)fault_addr)) + if (vma_lookup(current->mm, (unsigned long)fault_addr)) si_code =3D SEGV_ACCERR; else si_code =3D SEGV_MAPERR; --=20 2.30.2