From patchwork Wed Jul 25 07:29:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lijun Ou X-Patchwork-Id: 10543515 X-Patchwork-Delegate: jgg@ziepe.ca 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 386751805 for ; Wed, 25 Jul 2018 06:58:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 29824297C0 for ; Wed, 25 Jul 2018 06:58:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1DD35297D1; Wed, 25 Jul 2018 06:58:55 +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 C9946297C4 for ; Wed, 25 Jul 2018 06:58:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728222AbeGYIJI (ORCPT ); Wed, 25 Jul 2018 04:09:08 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:59238 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728573AbeGYIJF (ORCPT ); Wed, 25 Jul 2018 04:09:05 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 7F995EB1ECB4F; Wed, 25 Jul 2018 14:58:45 +0800 (CST) Received: from linux-ioko.site (10.71.200.31) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.382.0; Wed, 25 Jul 2018 14:58:45 +0800 From: Lijun Ou To: , CC: , Subject: [PATCH for-next 09/13] RDMA/hns: Add illegal hop_num judgement Date: Wed, 25 Jul 2018 15:29:37 +0800 Message-ID: <1532503781-45205-10-git-send-email-oulijun@huawei.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1532503781-45205-1-git-send-email-oulijun@huawei.com> References: <1532503781-45205-1-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 When hop_num is more than three, it need to return -EINVAL. This patch fixes it. Signed-off-by: Lijun Ou --- drivers/infiniband/hw/hns/hns_roce_hem.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c index 63b5b3e..8dc336a 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.c +++ b/drivers/infiniband/hw/hns/hns_roce_hem.c @@ -494,6 +494,9 @@ static int hns_roce_table_mhop_get(struct hns_roce_dev *hr_dev, step_idx = 1; } else if (hop_num == HNS_ROCE_HOP_NUM_0) { step_idx = 0; + } else { + ret = -EINVAL; + goto err_dma_alloc_l1; } /* set HEM base address to hardware */