From patchwork Tue Jun 18 08:22:14 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 252131 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id B535B2C029B for ; Tue, 18 Jun 2013 18:23:15 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753419Ab3FRIXO (ORCPT ); Tue, 18 Jun 2013 04:23:14 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:27133 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752965Ab3FRIXN (ORCPT ); Tue, 18 Jun 2013 04:23:13 -0400 Received: from 172.24.2.119 (EHLO szxeml213-edg.china.huawei.com) ([172.24.2.119]) by szxrg02-dlp.huawei.com (MOS 4.3.4-GA FastPath queued) with ESMTP id BDL63899; Tue, 18 Jun 2013 16:23:11 +0800 (CST) Received: from SZXEML422-HUB.china.huawei.com (10.82.67.161) by szxeml213-edg.china.huawei.com (172.24.2.30) with Microsoft SMTP Server (TLS) id 14.1.323.7; Tue, 18 Jun 2013 16:22:33 +0800 Received: from localhost (10.135.76.69) by szxeml422-hub.china.huawei.com (10.82.67.161) with Microsoft SMTP Server id 14.1.323.7; Tue, 18 Jun 2013 16:22:24 +0800 From: Yijing Wang To: Bjorn Helgaas CC: , , Hanjun Guo , , Yijing Wang Subject: [PATCH 7/9] PCI: use pdev->pm_cap instead of pci_find_capability(.., PCI_CAP_ID_PM) Date: Tue, 18 Jun 2013 16:22:14 +0800 Message-ID: <1371543734-14148-1-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.11.msysgit.1 MIME-Version: 1.0 X-Originating-IP: [10.135.76.69] X-CFilter-Loop: Reflected Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Pci pm cap register offset has been saved in pci_pm_init(), so we can use pdev->pm_cap instead of using pci_find_capability(..) here. Signed-off-by: Yijing Wang Cc: linux-pci@vger.kernel.org Cc: linux-kernel@vger.kernel.org Acked-by: Rafael J. Wysocki --- drivers/pci/pci.c | 2 +- drivers/pci/quirks.c | 6 ++---- 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index a899d8b..1117f2c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { pci_power_t ret; - if (!pci_find_capability(dev, PCI_CAP_ID_PM)) + if (!dev->pm_cap) return PCI_D0; ret = platform_pci_choose_state(dev); diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 7d68aee..422812b 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1832,7 +1832,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev) u16 command, pmcsr; u8 __iomem *csr; u8 cmd_hi; - int pm; switch (dev->device) { /* PCI IDs taken from drivers/net/e100.c */ @@ -1870,9 +1869,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev) * Check that the device is in the D0 power state. If it's not, * there is no point to look any further. */ - pm = pci_find_capability(dev, PCI_CAP_ID_PM); - if (pm) { - pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); + if (dev->pm_cap) { + pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) return; }