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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 D9FE7C32758 for ; Fri, 9 Aug 2019 09:45:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BAE1D2171F for ; Fri, 9 Aug 2019 09:45:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405976AbfHIJpa (ORCPT ); Fri, 9 Aug 2019 05:45:30 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:4209 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2406053AbfHIJp3 (ORCPT ); Fri, 9 Aug 2019 05:45:29 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id B2FE31DE1C64D207FA77; Fri, 9 Aug 2019 17:45:26 +0800 (CST) Received: from linux-ioko.site (10.71.200.31) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.439.0; Fri, 9 Aug 2019 17:45:20 +0800 From: Lijun Ou To: , CC: , , Subject: [PATCH for-next 4/9] RDMA/hns: Modify pi vlaue when cq overflows Date: Fri, 9 Aug 2019 17:41:01 +0800 Message-ID: <1565343666-73193-5-git-send-email-oulijun@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1565343666-73193-1-git-send-email-oulijun@huawei.com> References: <1565343666-73193-1-git-send-email-oulijun@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.71.200.31] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Yangyang Li When exiting "for loop", the actual value of pi will be increased by 1, which is compatible with the next calculation. But when pi is equal to "ci + hr_cq-> ib_cq.cqe", the "break" was called and the pi is actual value, it will lead one cqe still existing, so the "==" should be modify to ">". Signed-off-by: Yangyang Li --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +- 1 file changed, 1 insertion(+), 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 0409851..c6b55a1 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -2407,7 +2407,7 @@ static void __hns_roce_v2_cq_clean(struct hns_roce_cq *hr_cq, u32 qpn, for (prod_index = hr_cq->cons_index; get_sw_cqe_v2(hr_cq, prod_index); ++prod_index) { - if (prod_index == hr_cq->cons_index + hr_cq->ib_cq.cqe) + if (prod_index > hr_cq->cons_index + hr_cq->ib_cq.cqe) break; } -- 1.9.1