From patchwork Fri Nov 23 08:26:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lijun Ou X-Patchwork-Id: 10695189 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 773E81932 for ; Fri, 23 Nov 2018 07:49:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6D8A3291E3 for ; Fri, 23 Nov 2018 07:49:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 61BA82BE30; Fri, 23 Nov 2018 07:49:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 173F8291E3 for ; Fri, 23 Nov 2018 07:49:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390027AbeKWScz (ORCPT ); Fri, 23 Nov 2018 13:32:55 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:15589 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2389951AbeKWScy (ORCPT ); Fri, 23 Nov 2018 13:32:54 -0500 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id BE4B1EF7A8F2E; Fri, 23 Nov 2018 15:49:47 +0800 (CST) Received: from linux-ioko.site (10.71.200.31) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.408.0; Fri, 23 Nov 2018 15:49:48 +0800 From: Lijun Ou To: , CC: , Subject: [PATCH v2 for-next 3/4] RDMA/hns: Fix the bug while use multi-hop of pbl Date: Fri, 23 Nov 2018 16:26:37 +0800 Message-ID: <1542961598-91107-4-git-send-email-oulijun@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1542961598-91107-1-git-send-email-oulijun@huawei.com> References: <1542961598-91107-1-git-send-email-oulijun@huawei.com> MIME-Version: 1.0 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 X-Virus-Scanned: ClamAV using ClamSMTP It will access the border when defines the pbl for int and. This patch fix it. Signed-off-by: Lijun Ou --- V1->V2: 1. Remove the build warning --- drivers/infiniband/hw/hns/hns_roce_mr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index fabc95d..ee5991b 100644 --- a/drivers/infiniband/hw/hns/hns_roce_mr.c +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -1128,14 +1128,14 @@ struct ib_mr *hns_roce_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, goto err_umem; } } else { - int pbl_size = 1; + u64 pbl_size = 1; bt_size = (1 << (hr_dev->caps.pbl_ba_pg_sz + PAGE_SHIFT)) / 8; for (i = 0; i < hr_dev->caps.pbl_hop_num; i++) pbl_size *= bt_size; if (n > pbl_size) { dev_err(dev, - " MR len %lld err. MR page num is limited to %d!\n", + " MR len %lld err. MR page num is limited to %lld!\n", length, pbl_size); ret = -EINVAL; goto err_umem;