From patchwork Thu Sep 16 15:58:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 513748 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 BF0FDC433F5 for ; Thu, 16 Sep 2021 17:17:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A9F0660F23 for ; Thu, 16 Sep 2021 17:17:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346021AbhIPRSx (ORCPT ); Thu, 16 Sep 2021 13:18:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:40900 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350816AbhIPRQw (ORCPT ); Thu, 16 Sep 2021 13:16:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2C45361BA7; Thu, 16 Sep 2021 16:40:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631810425; bh=Pl4jT/1pzimdql52fgjmzbZnSvgTJ6qtKEL9aVJzT3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jn3s30sdRhXU3GkWuFJr6dYp4HmfTB26LBmmZ0IW5JQoQq9d7YziPG8UBsCIUMwtn 5XRoIjdL4kISJymm2/5Im7Ok0ssnJNXFEVi/F7YZBseLiFk14RQ8KarbmLXltkVktQ j/5B+mIOEx4gqoieb21uN6Cja1Sf+2+EtvWwxy74= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Junxian Huang , Wenpeng Liang , Jason Gunthorpe , Sasha Levin Subject: [PATCH 5.14 137/432] RDMA/hns: Bugfix for the missing assignment for dip_idx Date: Thu, 16 Sep 2021 17:58:06 +0200 Message-Id: <20210916155815.405682126@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210916155810.813340753@linuxfoundation.org> References: <20210916155810.813340753@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Junxian Huang [ Upstream commit 074f315fc54a9ce45559a44ca36d9fa1ee1ea2cd ] When the dgid-dip_idx mapping relationship exists, dip should be assigned. Fixes: f91696f2f053 ("RDMA/hns: Support congestion control type selection according to the FW") Link: https://lore.kernel.org/r/1629884592-23424-3-git-send-email-liangwenpeng@huawei.com Signed-off-by: Junxian Huang Signed-off-by: Wenpeng Liang Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index f4cea6dcec2f..d9e330a383b2 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -4514,8 +4514,10 @@ static int get_dip_ctx_idx(struct ib_qp *ibqp, const struct ib_qp_attr *attr, spin_lock_irqsave(&hr_dev->dip_list_lock, flags); list_for_each_entry(hr_dip, &hr_dev->dip_list, node) { - if (!memcmp(grh->dgid.raw, hr_dip->dgid, 16)) + if (!memcmp(grh->dgid.raw, hr_dip->dgid, 16)) { + *dip_idx = hr_dip->dip_idx; goto out; + } } /* If no dgid is found, a new dip and a mapping between dgid and