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Miller" , =?utf-8?b?SsOpcsO0bWUgUG91aWxsZXI=?= Subject: [PATCH 07/17] staging: wfx: fix endianness of hif_req_read_mib fields Date: Mon, 11 May 2020 17:49:20 +0200 Message-Id: <20200511154930.190212-8-Jerome.Pouiller@silabs.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200511154930.190212-1-Jerome.Pouiller@silabs.com> References: <20200511154930.190212-1-Jerome.Pouiller@silabs.com> X-ClientProxiedBy: SN6PR2101CA0026.namprd21.prod.outlook.com (2603:10b6:805:106::36) To MWHPR11MB1775.namprd11.prod.outlook.com (2603:10b6:300:10e::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from pc-42.silabs.com (82.67.86.106) by SN6PR2101CA0026.namprd21.prod.outlook.com (2603:10b6:805:106::36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3021.2 via Frontend Transport; Mon, 11 May 2020 15:49:57 +0000 X-Mailer: git-send-email 2.26.2 X-Originating-IP: [82.67.86.106] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4e703613-7df4-4c51-b5bc-08d7f5c2f5c0 X-MS-TrafficTypeDiagnostic: MWHPR11MB1968: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:163; X-Forefront-PRVS: 04004D94E2 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:MWHPR11MB1775.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(39850400004)(346002)(136003)(396003)(376002)(366004)(33430700001)(186003)(52116002)(86362001)(316002)(5660300002)(7696005)(6486002)(33440700001)(478600001)(54906003)(6666004)(4326008)(107886003)(66574014)(36756003)(16526019)(26005)(8936002)(956004)(2616005)(8676002)(1076003)(66476007)(66946007)(66556008)(2906002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: /LkFsSB071M+5tohCfR2PMypGS06CAbq84axijkH1NLl/URkKEAHvHCHLoy3BlX86T999MXvUvu1o68dUfGoOi2Ip4PCyKelOuRryyHLkCBWF3GwxIOqAYUWIJLNMONJ3ZAtGM7P+MdGjrnOqHfO5rUdfu/wFQ+Kf0Gmjo68/zN/iEJYFfKzRFGejghWRudnPU2y+WoBqL/cwN/soIY+oJcxuzC1Akls1unSxkexrNMXED3Ewhao/9I/d5OtyNmHx3x5OTutb8MW6NtsjwcazQDkkZLr2qFWXyCCBfOm1ncwmMFS801O/mn3x1h8gOIlX94C7Jnr2WCHJuXRSiib1IEupeGR5iEG2c32X+I39EL56QRWEtDAZebrpjcCyxJKV06lUx81rNI4K0tq1h0RtKGObUeON/t7pcSdzTDJjPZnSOhuNf/t3qdV/RfD4mnTCB49GF/pjRGrVAZswSzZcJpFTNc9b8j9KZGRBA0xDJU= X-OriginatorOrg: silabs.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4e703613-7df4-4c51-b5bc-08d7f5c2f5c0 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 May 2020 15:49:59.5000 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 54dbd822-5231-4b20-944d-6f4abcd541fb X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: MWC3QhMVS0nPeV7Uaeqq7RYO+MBT4k00FuEMhUuvYAH8/yRDdA5m4NTcucssSwFsWiZNiSnqtcnMvDS8AXw8LA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR11MB1968 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Jérôme Pouiller The structs hif_{req,cnf}_read_mib contain only little endian values. Thus, it is necessary to fix byte ordering before to use them. Especially, sparse detected wrong accesses to fields mib_id and length. Signed-off-by: Jérôme Pouiller --- drivers/staging/wfx/hif_tx.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c index 58013c019192..490a9de54faf 100644 --- a/drivers/staging/wfx/hif_tx.c +++ b/drivers/staging/wfx/hif_tx.c @@ -189,17 +189,17 @@ int hif_read_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, wfx_fill_header(hif, vif_id, HIF_REQ_ID_READ_MIB, sizeof(*body)); ret = wfx_cmd_send(wdev, hif, reply, buf_len, false); - if (!ret && mib_id != reply->mib_id) { + if (!ret && mib_id != le16_to_cpu(reply->mib_id)) { dev_warn(wdev->dev, "%s: confirmation mismatch request\n", __func__); ret = -EIO; } if (ret == -ENOMEM) - dev_err(wdev->dev, - "buffer is too small to receive %s (%zu < %d)\n", - get_mib_name(mib_id), val_len, reply->length); + dev_err(wdev->dev, "buffer is too small to receive %s (%zu < %d)\n", + get_mib_name(mib_id), val_len, + le16_to_cpu(reply->length)); if (!ret) - memcpy(val, &reply->mib_data, reply->length); + memcpy(val, &reply->mib_data, le16_to_cpu(reply->length)); else memset(val, 0xFF, val_len); kfree(hif);