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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 856EEC282CA for ; Tue, 12 Feb 2019 15:30:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 602B02084E for ; Tue, 12 Feb 2019 15:30:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729886AbfBLPaR (ORCPT ); Tue, 12 Feb 2019 10:30:17 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:58178 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730620AbfBLPaP (ORCPT ); Tue, 12 Feb 2019 10:30:15 -0500 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1CFTPUR138026 for ; Tue, 12 Feb 2019 10:30:13 -0500 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 2qkww50kh3-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 12 Feb 2019 10:30:13 -0500 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 12 Feb 2019 15:30:08 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1CFU7wu59899998 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 12 Feb 2019 15:30:07 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5412E11C074; Tue, 12 Feb 2019 15:30:07 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 09EAD11C04A; Tue, 12 Feb 2019 15:30:07 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Tue, 12 Feb 2019 15:30:06 +0000 (GMT) From: Ursula Braun To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org, schwidefsky@de.ibm.com, heiko.carstens@de.ibm.com, raspl@linux.ibm.com, ubraun@linux.ibm.com Subject: [PATCH net-next 6/7] net/smc: check port_idx of ib event Date: Tue, 12 Feb 2019 16:29:55 +0100 X-Mailer: git-send-email 2.16.4 In-Reply-To: <20190212152956.71041-1-ubraun@linux.ibm.com> References: <20190212152956.71041-1-ubraun@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19021215-0012-0000-0000-000002F4DA62 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19021215-0013-0000-0000-0000212C4FE8 Message-Id: <20190212152956.71041-7-ubraun@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-02-12_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902120110 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Karsten Graul For robustness protect of higher port numbers than expected to avoid setting bits behind our port_event_mask. In case of an DEVICE_FATAL event all ports must be checked. The IB_EVENT_GID_CHANGE event is provided in the global event handler, so handle it there. And handle a QP_FATAL event instead of an DEVICE_FATAL event in the qp handler. Signed-off-by: Karsten Graul Signed-off-by: Ursula Braun --- net/smc/smc_ib.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index 76487a16934e..0b244be24fe0 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -257,12 +257,20 @@ static void smc_ib_global_event_handler(struct ib_event_handler *handler, smcibdev = container_of(handler, struct smc_ib_device, event_handler); switch (ibevent->event) { - case IB_EVENT_PORT_ERR: case IB_EVENT_DEVICE_FATAL: + /* terminate all ports on device */ + for (port_idx = 0; port_idx < SMC_MAX_PORTS; port_idx++) + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); + break; + case IB_EVENT_PORT_ERR: case IB_EVENT_PORT_ACTIVE: + case IB_EVENT_GID_CHANGE: port_idx = ibevent->element.port_num - 1; - set_bit(port_idx, &smcibdev->port_event_mask); - schedule_work(&smcibdev->port_event_work); + if (port_idx < SMC_MAX_PORTS) { + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); + } break; default: break; @@ -294,13 +302,13 @@ static void smc_ib_qp_event_handler(struct ib_event *ibevent, void *priv) u8 port_idx; switch (ibevent->event) { - case IB_EVENT_DEVICE_FATAL: - case IB_EVENT_GID_CHANGE: - case IB_EVENT_PORT_ERR: + case IB_EVENT_QP_FATAL: case IB_EVENT_QP_ACCESS_ERR: port_idx = ibevent->element.qp->port - 1; - set_bit(port_idx, &smcibdev->port_event_mask); - schedule_work(&smcibdev->port_event_work); + if (port_idx < SMC_MAX_PORTS) { + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); + } break; default: break; -- 2.16.4