From nobody Sun Oct 5 01:52:47 2025 Received: from SEYPR02CU001.outbound.protection.outlook.com (mail-koreacentralazon11013012.outbound.protection.outlook.com [40.107.44.12]) (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 E1D971E2307 for ; Mon, 11 Aug 2025 08:27:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.44.12 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754900874; cv=fail; b=j/rEBz58mwa6pgwoGCEQ6ZwoifasIGdk3VMQQ+KDh/9yEP/31/33L1yP2Z5oCeCG517a9rNnsgtHxqRkarhaFdZYY22G/tyBeEYaNE3+uKT37Hpwvf+CJwI0UapP5IBfvCrkvJ68ArOFTNdBsyH6esiMRt+qkxQZ5ErV1iHZeWY= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754900874; c=relaxed/simple; bh=Z8PAB7yjpk7GpZTh26AJMe9wzxd/72S+H+DR7a8s9PE=; h=From:To:Cc:Subject:Date:Message-Id:Content-Type:MIME-Version; b=RmBbgmkMxqu55n/aGYeg3tGIj8QiED2ClMhQkgCoCF0XGJwazjZl95Y3rjlfZ0ODyAmRWHbG5CUhNN60hO3HsRGLP+j0JYbPTqiS8GBhRvET+h6hgnlbs6wSviV8Ho1i3yAjvRSNmxACCylqCr7ZiK6eZeGk5ZrXExKbchhgdu4= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=vivo.com; spf=pass smtp.mailfrom=vivo.com; dkim=pass (2048-bit key) header.d=vivo.com header.i=@vivo.com header.b=C7fh9CNo; arc=fail smtp.client-ip=40.107.44.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=vivo.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=vivo.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=vivo.com header.i=@vivo.com header.b="C7fh9CNo" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=yaPozOWTnik89Rq9wwV/GErPCcbEyAmkAnADE9RDXZIs356xlikVhF6FwK9DhJ2v/im5PJeWLEEhZgkKCIWojHRdtKoU95fozATWzA4Us1sOEzpvUgsItkBZ7ndHnhmUUfL6eo5cYMyImQEzf8rIf7jFJTDQBUhhWohW/gaP39FW8MDx1XtLqR79B/4Y3tWnCFo/SZ2eE+SjNAb3AggEJzYaZeXIHuMTkZmzHuMQElyPlkuMEDsBREayMUa/zti4LFKFBvEoK1sy/uDMmjrvUQtyrtmMWTTClWx1MG2BOciKuaBp0n/LOJGT9Io62/5crqWx8COde8TONqwqanDUxA== 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=rBg+5LHXB6d90V7H5yCd1Y0B5gD8AKQ0tAMM6u+Dg98=; b=sDAz3rXfK8gFGb38IEqsGnTFb12fDJHsd6VSur8yNX23ISlrXmJ0w73Ex/r59AQcPWEg34uOPpNFq0kiRZT7gNE0+mr6ZdymPSo61H+uD36T+3Zrq5h5+YttbcW0kMprdm5qV6A/D4C89sNG5RU/kAIGWDuj0eq2cGtyE98axfk42vLriEp2a1f646RysmXnuDuCe4Hfllx0PzCZgrr/VqBAkibgtCYoHXgxIo/dcVFk/kDJ0hDIHAJbOTPqoVYCAi8D2lBwhOgr6u1HEoERSjozLg0XSVcqvBK7RF0ZT0JVEKRgyJtMYiMpsSU5Kf95qsN38NtKUUE6i5d1zSI5hw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vivo.com; dmarc=pass action=none header.from=vivo.com; dkim=pass header.d=vivo.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vivo.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=rBg+5LHXB6d90V7H5yCd1Y0B5gD8AKQ0tAMM6u+Dg98=; b=C7fh9CNoy6KebQ8J2QC3sbkSh7tr6Ecx5AtUIRqv3AZj9oToF3fOA85Y6qaPXVjWK+Vgjhzs9rdy9Z7j7yNoXniO7Rfr+AjLQpUg8xoCJiOC7SK3tQNzIhHEL3ygcFQZGMUKqpc9cA2WuubWxay4LISfpvrVi72sCsQyEwh8ANjJmMhH8gMe6iI3gDxjftcuTl5QPGClUYOPRMwT4y+2CO0W4xjqQDRpUO2SFxLlzqpcOtXhqSViJZKeLH27UevE+/M32hivw9H0/Wch/XPUY6FEJ+VstdC0lu5zLTReNjDxzndIe84lqD12xdbMw5acHEABR2I4Q8OvtBtuJJBDhA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=vivo.com; Received: from SEZPR06MB5576.apcprd06.prod.outlook.com (2603:1096:101:c9::14) by TYZPR06MB6916.apcprd06.prod.outlook.com (2603:1096:405:42::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9009.21; Mon, 11 Aug 2025 08:27:49 +0000 Received: from SEZPR06MB5576.apcprd06.prod.outlook.com ([fe80::5c0a:2748:6a72:99b6]) by SEZPR06MB5576.apcprd06.prod.outlook.com ([fe80::5c0a:2748:6a72:99b6%5]) with mapi id 15.20.9009.018; Mon, 11 Aug 2025 08:27:49 +0000 From: Liao Yuanhong To: Andrew Morton , linux-kernel@vger.kernel.org (open list:LIBRARY CODE) Cc: Liao Yuanhong Subject: [PATCH] lib/digsig: Remove unnecessary memset Date: Mon, 11 Aug 2025 16:27:38 +0800 Message-Id: <20250811082739.378284-1-liaoyuanhong@vivo.com> X-Mailer: git-send-email 2.34.1 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: TYCP286CA0278.JPNP286.PROD.OUTLOOK.COM (2603:1096:400:3c9::19) To SEZPR06MB5576.apcprd06.prod.outlook.com (2603:1096:101:c9::14) 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: SEZPR06MB5576:EE_|TYZPR06MB6916:EE_ X-MS-Office365-Filtering-Correlation-Id: 44ce3168-f8cc-4fc3-7d63-08ddd8b0f4ee X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|52116014|366016|38350700014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?rPuivf1LHrhuniCjzWG2rfdId6gk23KTwBTFFldeLoewcwpQSbBGXPMCz5NZ?= =?us-ascii?Q?E4rqzub/MJgpdlFBZrl1pKyQZYernJ54cps8FRDtP12PF9m/TiRLOQ/U9GXF?= =?us-ascii?Q?8Ro/h2nqM1E4Q/gUkflg1O2V+5Lhq8nx/oEXn7a9jvykU2Kh56CPT0YAGLto?= =?us-ascii?Q?VlJ07t6v1mMWKMdrXhqqMtOnZRdPae/G1PDQ4uiTjwrxw5UzYUCvfOLUx0Dx?= =?us-ascii?Q?nw7oc6aJ6+8ZFJv+1cAQXgrbEG81d6AQaiToj/MLvkkqCRXHFzfzhokx8x55?= =?us-ascii?Q?U9P/zF6bDex6rPFO7w3nacHhFkTwpFXLd5WQIRmVQUzKVgWd6f1ec9+pxfzR?= =?us-ascii?Q?u1C7myLnlLJCKGg4O8DlRIPZQCzAy2ETgxRVxzRKhQkERNND9cn3jFp32CO+?= =?us-ascii?Q?5ipkDEOqjJEF75TIK1wHcNijkDE4Jb8vhZa1xwL2TZ+VoC1BUvHYHAxV6wkr?= =?us-ascii?Q?y/kqn3no2P6jdp02QamelnAioQmxtI2gUiq6FaEJ+fl2V6WojLDdr2NA9/Zh?= =?us-ascii?Q?s/dZ6It8WMwXGe772xovI6Go5TBgreAaFmY1eh1cL4aTWWOtOXHtd5P6dR7+?= =?us-ascii?Q?tj1qcbanhuALSIegQVOiJmQad9/fIl6bnIfYT0LjLwojFYvnOAVz60ZS8og1?= =?us-ascii?Q?7huUMJ7Cy7IutGY8b4bJPbXQGXoFYwTeQl38YrQ2bSBN9xqQSNPK0TDMpfmK?= =?us-ascii?Q?dO+VUcaxTNZB6TC6Yxct2+p+OMHGY5q4JFOKjqqCcz9Hpy0lSxIMyxH4+JhW?= =?us-ascii?Q?zvokY/Qq5BYcvjzsWEWAwZGj5+Dh9uv93ODNybc3+yt80thBUHtdnjh5eAPF?= =?us-ascii?Q?QbilcJJMDynQI2Yb2DO0kbDHUduKbO0MAz2hPMcbFAWR+cvfVfm0Av9epBBv?= =?us-ascii?Q?CKt5udDd9fXEfWljcctNOiKlEr6lWQvQIxmY8uGvIi4xHtQ+k1EFw+zyAlLc?= =?us-ascii?Q?7u9c8mZiPeVuqEPp53EUW6OFOvbsvVRtXe5B6R1simP7Zbmm8VssZgOgpu4k?= =?us-ascii?Q?5H5br7hR2/BiiXEM5QnSbA0ANmQQNt8HuFywvYrtq1W7LHPsZCf4UKwpNxQh?= =?us-ascii?Q?pXaXL8paB7nkuh3JI5iEyCF8wOP/wH6TNw3Csb8Pe7AXqSEI4NCYYaJxBAeH?= =?us-ascii?Q?SEyRfvqM9vR33Mhi1NdgL5FbB7sHpKAoxVvqlWOkZ+B5/BY2vskaYzmNeJKg?= =?us-ascii?Q?ZsvMbgE4HJSyQytX+e5wA+tBTEryZmxmWk5cM/P/yx9WHUyyDK/UTyfqZcEY?= =?us-ascii?Q?SSG0zKMHSYX5Yx27vtIdyNeIDUGe7jBFT7xiscIwBP/We8JKtAUSLYlvulmV?= =?us-ascii?Q?kX+5CzgH5HyQLsLQvC2GKQ4/6vcG6GhNalHhARURoQzqLC/bPiL6HEKw+Czv?= =?us-ascii?Q?yk3GSnTz65ogApIr58Tm86LwvNPI3VeBinMuzDjgvmklEoWJHceXSHafhsNP?= =?us-ascii?Q?ij3yA3b3Cj4bvjX0GLEi9uZyXLeYnRMRO9sSS1LjzaI6Zv1gIP6z2w=3D=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SEZPR06MB5576.apcprd06.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(1800799024)(52116014)(366016)(38350700014);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?unQY5gE00p41+4CuwxZbGzZV8aXgLIiHjevhVDCObpimh6XoHQPucvaiD/Yf?= =?us-ascii?Q?Gi96jnKKIWBpN2v6g9Xq7lJ/eazt03UzIE/Ys00QXt/lkMy0fslM4vAuMeYj?= =?us-ascii?Q?cgIfw8sj3y0rWJ5QT9EY/jdeJz/68KBnry8hTZIukAgA74cTo6fmZ0pO0/t2?= =?us-ascii?Q?EDLf5RgFPlcWJ4LZWSOzYqiPJUsglNroIvbmpG+ZnRqLyhOLD000sgLzW+8w?= =?us-ascii?Q?n9rVs/qDOewMxVge83MQy5UdXclmNVuFIIt/ltQBHoP3NRWaMRFyvSitYxoS?= =?us-ascii?Q?DW/Re9SoO75cQlLXhv/G0eQQYI6xEjytcPS5LZ9LIuW+S300x5Z02bEXyycF?= =?us-ascii?Q?U6YnL/jyVP7D1menFiSqROwoJCxjwOg4UEaMfCGVuVC/9/oVJXjdtPBED1mP?= =?us-ascii?Q?KGH8faiCVGv7iU9DPAQybzANJ9uVtAHSIRbS+e76usyd1u7chR/SYUZbaokk?= =?us-ascii?Q?HOYdiLtgG3wSWItpGBOgUwX658RmyVAe1WQblcY89E0beKSscI8xuDXTMbGa?= =?us-ascii?Q?BErFmpffIvlnxCfqN50ANlahHXeXSb4eG6/8WHoAOsWgjwsVJLILy6Y5UWJx?= =?us-ascii?Q?GsLJig77bmeILJEFnczIgvnS59eX3igZS+aTPuA5Nye3Aip0YXaW8eoTfrEr?= =?us-ascii?Q?BI+/MW/SD/+Sfaa70KecSXIr+6o6WECl506087RlgD7WlL++O9GpKzpAai7P?= =?us-ascii?Q?5OLLMV5mt473mmlTgqqIM9lEs8mCXF2H/CxGNx0kOETBO1NCMtx9dPN7adkF?= =?us-ascii?Q?fjVW6eAKVlBXVA/CuqjCaFrOhiS6xcI8mW5dDSufc7EPGMy9dgbzhpBcKOwe?= =?us-ascii?Q?ZzLbusJ0Zsmw0jv7BOfi9iwEYj7Q4Af+Q+NzH6pevFu65jAkCfPVoSnQfsUg?= =?us-ascii?Q?Cw2hylvbjunU9k2Ec9j+1dit8dqTmDQtWt7t7y/kWyHO9HnE0qXrRbRethzy?= =?us-ascii?Q?7xbt+D0KyTNmnrbZ6JTM5jn6kKFOvIiJgs7NnBcj9n0iVUctEb44ecqJuqBU?= =?us-ascii?Q?9Hu66XcIO+x7t9RfsiblIwYVL38xSGaue8FF1kIf8lg7xt6eSRorDFHlAWW3?= =?us-ascii?Q?2oAcV/NGXtOmNIQGNc5YN8KdIHI9Tlc2RyaoOQ04PRRT51rrU8Ccs7Fd9lYl?= =?us-ascii?Q?EBOS60iHvHqwtP85EOq1SzaYGtukx50By4JZDNMMdXPW5lS1ASFb03FL+PY+?= =?us-ascii?Q?C4AAEH/mKmBh/4J3SfXwBqphVt3TIAqN7t5ueQe0pyc4wNP+4DDRHOK/1RE5?= =?us-ascii?Q?NF5lVbWogOsjG6sqG8Ah5nrMhdPTexIOSSmfErUKpxoILCkYR1EdzA4yNXOz?= =?us-ascii?Q?4cl67GUsNWW76ixTiL6En6t54fI2ysVYMWnYBX0guYpxY7aYI/DUf4ErZkWm?= =?us-ascii?Q?JUW1NxMotdKmkf7QKiqHckp9/tr5nC4Kb1r9Gy8U6LGFZEzNHPJsTQlCSycs?= =?us-ascii?Q?ulPvFwfF/lEHBdiwlnwZ8hhWvukIPOx7LP+pJXZ/qgV7ep8gE1bbAwu/kpeh?= =?us-ascii?Q?KP5iA52RmKME29Kd/oyTWyIBP/jrJtjvExkZekCCTH+7XXG+91ki4h0iOR85?= =?us-ascii?Q?NunPGvxQiI+23pj8jbhuWpEDFqzDDtI7/mu8zwy1?= X-OriginatorOrg: vivo.com X-MS-Exchange-CrossTenant-Network-Message-Id: 44ce3168-f8cc-4fc3-7d63-08ddd8b0f4ee X-MS-Exchange-CrossTenant-AuthSource: SEZPR06MB5576.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Aug 2025 08:27:49.3765 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 923e42dc-48d5-4cbe-b582-1a797a6412ed X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: opJwP73BeUh3QIbmIo28Se4bl/UaRRdelZ5cGatw05xjiLZLMDL9zR28ZF8jsHc/QCevYIX7TG71Ejnd/YU/xg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYZPR06MB6916 Content-Type: text/plain; charset="utf-8" kzalloc() has already been initialized to full 0 space, there is no need to use memset() to initialize again. Signed-off-by: Liao Yuanhong --- lib/digsig.c | 1 - 1 file changed, 1 deletion(-) diff --git a/lib/digsig.c b/lib/digsig.c index 04b5e55ed95f..2b36f9cc91e9 100644 --- a/lib/digsig.c +++ b/lib/digsig.c @@ -159,7 +159,6 @@ static int digsig_verify_rsa(struct key *key, =20 len =3D mlen; head =3D len - l; - memset(out1, 0, head); memcpy(out1 + head, p, l); =20 kfree(p); --=20 2.34.1