From patchwork Mon Sep 9 13:13:05 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 2860771 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 11E7B9F2D6 for ; Mon, 9 Sep 2013 13:18:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E349820462 for ; Mon, 9 Sep 2013 13:18:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D4CAC20457 for ; Mon, 9 Sep 2013 13:18:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752473Ab3IINRF (ORCPT ); Mon, 9 Sep 2013 09:17:05 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:52446 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751969Ab3IINRD (ORCPT ); Mon, 9 Sep 2013 09:17:03 -0400 Received: from 172.24.2.119 (EHLO szxeml208-edg.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.4-GA FastPath queued) with ESMTP id BHI25318; Mon, 09 Sep 2013 21:13:31 +0800 (CST) Received: from SZXEML416-HUB.china.huawei.com (10.82.67.155) by szxeml208-edg.china.huawei.com (172.24.2.57) with Microsoft SMTP Server (TLS) id 14.1.323.7; Mon, 9 Sep 2013 21:13:29 +0800 Received: from localhost (10.135.76.69) by szxeml416-hub.china.huawei.com (10.82.67.155) with Microsoft SMTP Server id 14.1.323.7; Mon, 9 Sep 2013 21:13:22 +0800 From: Yijing Wang To: Bjorn Helgaas , Chris Metcalf , Greg Kroah-Hartman , David Airlie , Mike Marciniszyn , Roland Dreier , Roland Dreier CC: , Mark Einon , Sean Hefty , Hal Rosenstock , , , Yijing Wang , Hanjun Guo Subject: [PATCH 3/6] IB/qib: Use pci_is_root_bus() to check whether it is a root bus Date: Mon, 9 Sep 2013 21:13:05 +0800 Message-ID: <1378732388-4508-4-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.11.msysgit.1 In-Reply-To: <1378732388-4508-1-git-send-email-wangyijing@huawei.com> References: <1378732388-4508-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.135.76.69] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-7.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use pci_is_root_bus() instead of "if (bus->parent)" statement for better readability. Signed-off-by: Yijing Wang Acked-by: Mike Marciniszyn --- drivers/infiniband/hw/qib/qib_pcie.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c index c574ec7..3a5b99b 100644 --- a/drivers/infiniband/hw/qib/qib_pcie.c +++ b/drivers/infiniband/hw/qib/qib_pcie.c @@ -590,7 +590,7 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd) /* Find out supported and configured values for parent (root) */ parent = dd->pcidev->bus->self; - if (parent->bus->parent) { + if (!pci_is_root_bus(parent->bus)) { qib_devinfo(dd->pcidev, "Parent not root\n"); goto bail; }