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, URIBL_BLOCKED,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 82312CA9ECF for ; Fri, 1 Nov 2019 02:37:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64E1B2083E for ; Fri, 1 Nov 2019 02:37:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726793AbfKAChN (ORCPT ); Thu, 31 Oct 2019 22:37:13 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5242 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727455AbfKAChN (ORCPT ); Thu, 31 Oct 2019 22:37:13 -0400 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 5B6D9ABFA2CDF7E02E6C; Fri, 1 Nov 2019 10:37:10 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.439.0; Fri, 1 Nov 2019 10:37:03 +0800 From: Weihang Li To: , CC: , Subject: [PATCH for-rc 2/2] RDMA/hns: Correct the value of srq_desc_size Date: Fri, 1 Nov 2019 10:33:30 +0800 Message-ID: <1572575610-52530-3-git-send-email-liweihang@hisilicon.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1572575610-52530-1-git-send-email-liweihang@hisilicon.com> References: <1572575610-52530-1-git-send-email-liweihang@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Wenpeng Liang srq_desc_size should be rounded up to pow of two before used, or related calculation may cause allocating wrong size of memory for srq buffer. Fixes: c7bcb13442e1 ("RDMA/hns: Add SRQ support for hip08 kernel mode") Signed-off-by: Wenpeng Liang Signed-off-by: Weihang Li --- drivers/infiniband/hw/hns/hns_roce_srq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c index 9591457..43ea2c1 100644 --- a/drivers/infiniband/hw/hns/hns_roce_srq.c +++ b/drivers/infiniband/hw/hns/hns_roce_srq.c @@ -376,7 +376,7 @@ int hns_roce_create_srq(struct ib_srq *ib_srq, srq->max = roundup_pow_of_two(srq_init_attr->attr.max_wr + 1); srq->max_gs = srq_init_attr->attr.max_sge; - srq_desc_size = max(16, 16 * srq->max_gs); + srq_desc_size = roundup_pow_of_two(max(16, 16 * srq->max_gs)); srq->wqe_shift = ilog2(srq_desc_size); -- 2.8.1