{"id":816721,"url":"http://patchwork.ozlabs.org/api/patches/816721/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/patch/20170921071634.16883-5-ubraun@linux.vnet.ibm.com/","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/projects/7/?format=json","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":"<20170921071634.16883-5-ubraun@linux.vnet.ibm.com>","list_archive_url":null,"date":"2017-09-21T07:16:29","name":"[net,4/9] net/smc: adjust net_device refcount","commit_ref":null,"pull_url":null,"state":"accepted","archived":true,"hash":"0a6b1e6b0ed5f04de2cc562979f6944f4bd5c490","submitter":{"id":2266,"url":"http://patchwork.ozlabs.org/api/people/2266/?format=json","name":"Ursula Braun","email":"ubraun@linux.vnet.ibm.com"},"delegate":{"id":34,"url":"http://patchwork.ozlabs.org/api/users/34/?format=json","username":"davem","first_name":"David","last_name":"Miller","email":"davem@davemloft.net"},"mbox":"http://patchwork.ozlabs.org/project/netdev/patch/20170921071634.16883-5-ubraun@linux.vnet.ibm.com/mbox/","series":[{"id":4314,"url":"http://patchwork.ozlabs.org/api/series/4314/?format=json","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/816721/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/816721/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xyScJ5m0zz9sBZ\n\tfor ;\n\tThu, 21 Sep 2017 17:17:36 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1751804AbdIUHRa (ORCPT );\n\tThu, 21 Sep 2017 03:17:30 -0400","from mx0a-001b2d01.pphosted.com ([148.163.156.1]:39332 \"EHLO\n\tmx0a-001b2d01.pphosted.com\" rhost-flags-OK-OK-OK-OK)\n\tby vger.kernel.org with ESMTP id S1751840AbdIUHQs (ORCPT\n\t); Thu, 21 Sep 2017 03:16:48 -0400","from pps.filterd (m0098393.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv8L7EC6P146140\n\tfor ; Thu, 21 Sep 2017 03:16:47 -0400","from e06smtp12.uk.ibm.com (e06smtp12.uk.ibm.com [195.75.94.108])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2d4624q3xn-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor ; Thu, 21 Sep 2017 03:16:47 -0400","from localhost\n\tby e06smtp12.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor from ;\n\tThu, 21 Sep 2017 08:16:45 +0100","from b06cxnps4074.portsmouth.uk.ibm.com (9.149.109.196)\n\tby e06smtp12.uk.ibm.com (192.168.101.142) with IBM ESMTP SMTP\n\tGateway: Authorized Use Only! Violators will be prosecuted; \n\tThu, 21 Sep 2017 08:16:42 +0100","from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60])\n\tby b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v8L7Ggf911927706; Thu, 21 Sep 2017 07:16:42 GMT","from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 405DD42041;\n\tThu, 21 Sep 2017 08:12:52 +0100 (BST)","from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id ED4904203F;\n\tThu, 21 Sep 2017 08:12:51 +0100 (BST)","from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9])\n\tby d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTPS;\n\tThu, 21 Sep 2017 08:12:51 +0100 (BST)"],"From":"Ursula Braun ","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 4/9] net/smc: adjust net_device refcount","Date":"Thu, 21 Sep 2017 09:16:29 +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":"17092107-0008-0000-0000-00000498E218","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17092107-0009-0000-0000-00001E2A1BB4","Message-Id":"<20170921071634.16883-5-ubraun@linux.vnet.ibm.com>","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-21_01:, , signatures=0","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=1\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1709210099","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"smc_pnet_fill_entry() uses dev_get_by_name() adding a refcount to ndev.\nThe following smc_pnet_enter() has to reduce the refcount if the entry\nto be added exists already in the pnet table.\n\nSigned-off-by: Ursula Braun \n---\n net/smc/smc_pnet.c | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)","diff":"diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c\nindex 78f7af28ae4f..31f8453c25c5 100644\n--- a/net/smc/smc_pnet.c\n+++ b/net/smc/smc_pnet.c\n@@ -181,8 +181,10 @@ static int smc_pnet_enter(struct smc_pnetentry *new_pnetelem)\n \t\t\t sizeof(new_pnetelem->ndev->name)) ||\n \t\t smc_pnet_same_ibname(pnetelem,\n \t\t\t\t\t new_pnetelem->smcibdev->ibdev->name,\n-\t\t\t\t\t new_pnetelem->ib_port))\n+\t\t\t\t\t new_pnetelem->ib_port)) {\n+\t\t\tdev_put(pnetelem->ndev);\n \t\t\tgoto found;\n+\t\t}\n \t}\n \tlist_add_tail(&new_pnetelem->list, &smc_pnettable.pnetlist);\n \trc = 0;\n","prefixes":["net","4/9"]}