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{
    "id": 816722,
    "url": "http://patchwork.ozlabs.org/api/patches/816722/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20170921071634.16883-2-ubraun@linux.vnet.ibm.com/",
    "project": {
        "id": 7,
        "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api",
        "name": "Linux network development",
        "link_name": "netdev",
        "list_id": "netdev.vger.kernel.org",
        "list_email": "netdev@vger.kernel.org",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<20170921071634.16883-2-ubraun@linux.vnet.ibm.com>",
    "list_archive_url": null,
    "date": "2017-09-21T07:16:26",
    "name": "[net,1/9] net/smc: add missing dev_put",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "9bb23bc705022506212643434fc70e7d9a0b7156",
    "submitter": {
        "id": 2266,
        "url": "http://patchwork.ozlabs.org/api/people/2266/?format=api",
        "name": "Ursula Braun",
        "email": "ubraun@linux.vnet.ibm.com"
    },
    "delegate": {
        "id": 34,
        "url": "http://patchwork.ozlabs.org/api/users/34/?format=api",
        "username": "davem",
        "first_name": "David",
        "last_name": "Miller",
        "email": "davem@davemloft.net"
    },
    "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/20170921071634.16883-2-ubraun@linux.vnet.ibm.com/mbox/",
    "series": [
        {
            "id": 4314,
            "url": "http://patchwork.ozlabs.org/api/series/4314/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=4314",
            "date": "2017-09-21T07:16:25",
            "name": "net/smc: bug fixes 2017-09-20",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/4314/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/816722/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/816722/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
        "X-Original-To": "patchwork-incoming@ozlabs.org",
        "Delivered-To": "patchwork-incoming@ozlabs.org",
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            "from d06av24.portsmouth.uk.ibm.com (d06av24.portsmouth.uk.ibm.com\n\t[9.149.105.60])\n\tby b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v8L7GcMI20381858; Thu, 21 Sep 2017 07:16:38 GMT",
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        ],
        "From": "Ursula Braun <ubraun@linux.vnet.ibm.com>",
        "To": "davem@davemloft.net",
        "Cc": "netdev@vger.kernel.org, linux-rdma@vger.kernel.org,\n\tlinux-s390@vger.kernel.org, jwi@linux.vnet.ibm.com,\n\tschwidefsky@de.ibm.com, heiko.carstens@de.ibm.com,\n\traspl@linux.vnet.ibm.com, ubraun@linux.vnet.ibm.com",
        "Subject": "[PATCH net 1/9] net/smc: add missing dev_put",
        "Date": "Thu, 21 Sep 2017 09:16:26 +0200",
        "X-Mailer": "git-send-email 2.13.5",
        "In-Reply-To": "<20170921071634.16883-1-ubraun@linux.vnet.ibm.com>",
        "References": "<20170921071634.16883-1-ubraun@linux.vnet.ibm.com>",
        "X-TM-AS-GCONF": "00",
        "x-cbid": "17092107-0020-0000-0000-000003B9E34E",
        "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused",
        "x-cbparentid": "17092107-0021-0000-0000-0000424BA11B",
        "Message-Id": "<20170921071634.16883-2-ubraun@linux.vnet.ibm.com>",
        "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-21_01:, , signatures=0",
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        "Sender": "netdev-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<netdev.vger.kernel.org>",
        "X-Mailing-List": "netdev@vger.kernel.org"
    },
    "content": "From: Hans Wippel <hwippel@linux.vnet.ibm.com>\n\nIn the infiniband part, SMC currently uses get_netdev which calls\ndev_hold on the returned net device. However, the SMC code never calls\ndev_put on that net device resulting in a wrong reference count.\n\nThis patch adds a dev_put after the usage of the net device to fix the\nissue.\n\nSigned-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com>\nSigned-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>\n---\n net/smc/smc_ib.c | 1 +\n 1 file changed, 1 insertion(+)",
    "diff": "diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c\nindex 547e0e113b17..0b5852299158 100644\n--- a/net/smc/smc_ib.c\n+++ b/net/smc/smc_ib.c\n@@ -380,6 +380,7 @@ static int smc_ib_fill_gid_and_mac(struct smc_ib_device *smcibdev, u8 ibport)\n \tndev = smcibdev->ibdev->get_netdev(smcibdev->ibdev, ibport);\n \tif (ndev) {\n \t\tmemcpy(&smcibdev->mac, ndev->dev_addr, ETH_ALEN);\n+\t\tdev_put(ndev);\n \t} else if (!rc) {\n \t\tmemcpy(&smcibdev->mac[ibport - 1][0],\n \t\t       &smcibdev->gid[ibport - 1].raw[8], 3);\n",
    "prefixes": [
        "net",
        "1/9"
    ]
}