From patchwork Tue Jun 22 13:20:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Haakon Bugge X-Patchwork-Id: 12337429 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=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 02383C48BDF for ; Tue, 22 Jun 2021 13:20:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D690361002 for ; Tue, 22 Jun 2021 13:20:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230039AbhFVNXB (ORCPT ); Tue, 22 Jun 2021 09:23:01 -0400 Received: from mx0a-00069f02.pphosted.com ([205.220.165.32]:61732 "EHLO mx0a-00069f02.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229907AbhFVNXB (ORCPT ); Tue, 22 Jun 2021 09:23:01 -0400 Received: from pps.filterd (m0246617.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 15MDHQ7v010726; Tue, 22 Jun 2021 13:20:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : mime-version : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=O1Sx4kGcePZGpoxqmdhgNlW8ltIzgqo4pLLrxRmS12Q=; b=Kf6GeSEE9zPN6rHO6NeAXKNk3GhPkh6T8PvuozvKrYeM4LcXBuQ6CdMzw/Vo5XUNwipx 5P2ihGN9CVdKxbnowAIgfItIXlSjrPhylDQH0NWbEHmnZnJvPBdSk2xJjX+j3leBUXMD ID4lAFjOxCZ0V7B4BdqqcNnKyNRc4ylSLknOICYba3eUFNhRDCke90rto0oM3QKmUnrh Ias9aEAgh+5lNDtihNTPpENss2KvzMzM9qf0RR2y0eQrQVG9lq8h5vXwuhLJKxUwYm2o 77Cf8ubz+jgws3EiDQ6+O2uj0Xy/aTMhx0cUAER55yu1TWqqfgfLDXdrkHxofWC9Rm2Y HA== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by mx0b-00069f02.pphosted.com with ESMTP id 39aqqvu51k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 22 Jun 2021 13:20:41 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 15MDFsSK129731; Tue, 22 Jun 2021 13:20:40 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userp3020.oracle.com with ESMTP id 399tbspdkt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 22 Jun 2021 13:20:40 +0000 Received: from abhmp0016.oracle.com (abhmp0016.oracle.com [141.146.116.22]) by aserv0121.oracle.com (8.14.4/8.14.4) with ESMTP id 15MDKc0u017457; Tue, 22 Jun 2021 13:20:38 GMT Received: from lab02.no.oracle.com (/10.172.144.56) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 22 Jun 2021 06:20:38 -0700 From: =?utf-8?q?H=C3=A5kon_Bugge?= To: Doug Ledford , Jason Gunthorpe , Leon Romanovsky Cc: linux-rdma@vger.kernel.org, Mark Zhang Subject: [PATCH for-next 0/2] Fix RMW to bit-fields and remove one superfluous ib_modify_qp Date: Tue, 22 Jun 2021 15:20:28 +0200 Message-Id: <1624368030-23214-1-git-send-email-haakon.bugge@oracle.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10022 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 mlxscore=0 spamscore=0 mlxlogscore=999 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106220084 X-Proofpoint-ORIG-GUID: YRJxTTAt_ompn7a1U7bF9NULMMMCdAPk X-Proofpoint-GUID: YRJxTTAt_ompn7a1U7bF9NULMMMCdAPk Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org This series removes one superfluous ib_modify_qp() when a connected QP is created through rdma_create_qp(). This commit removes a call to rdma_init_qp_attr() for connected QPs without holding the qp_mutex. The second commit tightens the access to bit-fields and synchronizes the access to them by means of mutex exclusion. Håkon Bugge (2): RDMA/cma: Remove unnecessary INIT->INIT transition RDMA/cma: Protect RMW with qp_mutex drivers/infiniband/core/cma.c | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) --- 1.8.3.1