From patchwork Tue Jul 29 02:16:13 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ethan zhao X-Patchwork-Id: 4638061 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@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 F39EB9F32F for ; Tue, 29 Jul 2014 02:17:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 389022015D for ; Tue, 29 Jul 2014 02:17:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3345D2014A for ; Tue, 29 Jul 2014 02:17:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752583AbaG2CRI (ORCPT ); Mon, 28 Jul 2014 22:17:08 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:46866 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751953AbaG2CRI (ORCPT ); Mon, 28 Jul 2014 22:17:08 -0400 Received: from acsinet22.oracle.com (acsinet22.oracle.com [141.146.126.238]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id s6T2GpjX031037 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 29 Jul 2014 02:16:52 GMT Received: from userz7021.oracle.com (userz7021.oracle.com [156.151.31.85]) by acsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s6T2GomB010360 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Tue, 29 Jul 2014 02:16:51 GMT Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by userz7021.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id s6T2GnOV023571; Tue, 29 Jul 2014 02:16:49 GMT Received: from etnux.cn.oracle.com (/10.182.70.25) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Mon, 28 Jul 2014 19:16:48 -0700 From: Ethan Zhao To: bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, gleb@kernel.org, pbonzini@redhat.com, kvm@vger.kernel.org, konrad.wilk@oracle.com, boris.ostrovsky@oracle.com, david.vrabel@citrix.com, xen-devel@lists.xenproject.org Cc: alex.williamson@redhat.com, alexander.h.duyck@intel.com, ethan.kernel@gmail.com Subject: [PATCH 1/4 v2] PCI: introduce helper functions for device flag operation Date: Tue, 29 Jul 2014 10:16:13 +0800 Message-Id: <1406600173-7611-1-git-send-email-ethan.zhao@oracle.com> X-Mailer: git-send-email 1.7.1 X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 This patch introduced three helper functions to hide direct device flag operation. void pci_set_dev_assigned(struct pci_dev *pdev); void pci_set_dev_deassigned(struct pci_dev *pdev); bool pci_is_dev_assigned(struct pci_dev *pdev); Signed-off-by: Ethan Zhao --- v2: simplify unnecessory ternary operation in function pci_is_dev_assigned(); include/linux/pci.h | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/include/linux/pci.h b/include/linux/pci.h index aab57b4..5f6f8fa 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1129,6 +1129,19 @@ resource_size_t pcibios_window_alignment(struct pci_bus *bus, int pci_set_vga_state(struct pci_dev *pdev, bool decode, unsigned int command_bits, u32 flags); +/* helper functions for operation of device flag */ +static inline void pci_set_dev_assigned(struct pci_dev *pdev) +{ + pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED; +} +static inline void pci_set_dev_deassigned(struct pci_dev *pdev) +{ + pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED; +} +static inline bool pci_is_dev_assigned(struct pci_dev *pdev) +{ + return pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED; +} /* kmem_cache style wrapper around pci_alloc_consistent() */ #include