From patchwork Fri Sep 5 10:09:46 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 4850961 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1E992C033A for ; Fri, 5 Sep 2014 09:49:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 13A1320176 for ; Fri, 5 Sep 2014 09:49:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DFC59202B8 for ; Fri, 5 Sep 2014 09:49:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757005AbaIEJsw (ORCPT ); Fri, 5 Sep 2014 05:48:52 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:61446 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756557AbaIEJpy (ORCPT ); Fri, 5 Sep 2014 05:45:54 -0400 Received: from 172.24.2.119 (EHLO szxeml419-hub.china.huawei.com) ([172.24.2.119]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id ATY92806; Fri, 05 Sep 2014 17:45:42 +0800 (CST) Received: from localhost.localdomain (10.175.100.166) by szxeml419-hub.china.huawei.com (10.82.67.158) with Microsoft SMTP Server id 14.3.158.1; Fri, 5 Sep 2014 17:45:26 +0800 From: Yijing Wang To: Bjorn Helgaas CC: Xinwei Hu , Wuyun , , , "Russell King" , , , , , Arnd Bergmann , Thomas Gleixner , "Konrad Rzeszutek Wilk" , , Joerg Roedel , , , Benjamin Herrenschmidt , , , Sebastian Ott , "Tony Luck" , , "David S. Miller" , , Chris Metcalf , Ralf Baechle , Yijing Wang , Thierry Reding , "Thomas Petazzoni" Subject: [PATCH v1 01/21] PCI/MSI: Clean up struct msi_chip argument Date: Fri, 5 Sep 2014 18:09:46 +0800 Message-ID: <1409911806-10519-2-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1409911806-10519-1-git-send-email-wangyijing@huawei.com> References: <1409911806-10519-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.5409864A.017D,ss=1,re=0.000,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2011-05-27 18:58:46 X-Mirapoint-Loop-Id: 9849e949b8bbcab4997d27c03d49b308 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-8.6 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 Msi_chip functions setup_irq/teardown_irq rarely use msi_chip argument. We can look up msi_chip pointer by the device pointer or irq number, so clean up msi_chip argument. Signed-off-by: Yijing Wang CC: Thierry Reding CC: Thomas Petazzoni --- drivers/irqchip/irq-armada-370-xp.c | 12 +++++------- drivers/pci/host/pci-tegra.c | 8 +++++--- drivers/pci/host/pcie-designware.c | 4 ++-- drivers/pci/host/pcie-rcar.c | 8 +++++--- drivers/pci/msi.c | 4 ++-- include/linux/msi.h | 5 ++--- 6 files changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 574aba0..658990c 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -129,9 +129,8 @@ static void armada_370_xp_free_msi(int hwirq) mutex_unlock(&msi_used_lock); } -static int armada_370_xp_setup_msi_irq(struct msi_chip *chip, - struct pci_dev *pdev, - struct msi_desc *desc) +static int armada_370_xp_setup_msi_irq(struct pci_dev *pdev, + struct msi_desc *desc) { struct msi_msg msg; int virq, hwirq; @@ -156,8 +155,7 @@ static int armada_370_xp_setup_msi_irq(struct msi_chip *chip, return 0; } -static void armada_370_xp_teardown_msi_irq(struct msi_chip *chip, - unsigned int irq) +static void armada_370_xp_teardown_msi_irq(unsigned int irq) { struct irq_data *d = irq_get_irq_data(irq); unsigned long hwirq = d->hwirq; @@ -166,8 +164,8 @@ static void armada_370_xp_teardown_msi_irq(struct msi_chip *chip, armada_370_xp_free_msi(hwirq); } -static int armada_370_xp_check_msi_device(struct msi_chip *chip, struct pci_dev *dev, - int nvec, int type) +static int armada_370_xp_check_msi_device(struct pci_dev *dev, + int nvec, int type) { /* We support MSI, but not MSI-X */ if (type == PCI_CAP_ID_MSI) diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index 0fb0fdb..edd4040 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -1157,9 +1157,10 @@ static irqreturn_t tegra_pcie_msi_irq(int irq, void *data) return processed > 0 ? IRQ_HANDLED : IRQ_NONE; } -static int tegra_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, +static int tegra_msi_setup_irq(struct pci_dev *pdev, struct msi_desc *desc) { + struct msi_chip *chip = pdev->bus->msi; struct tegra_msi *msi = to_tegra_msi(chip); struct msi_msg msg; unsigned int irq; @@ -1185,10 +1186,11 @@ static int tegra_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, return 0; } -static void tegra_msi_teardown_irq(struct msi_chip *chip, unsigned int irq) +static void tegra_msi_teardown_irq(unsigned int irq) { - struct tegra_msi *msi = to_tegra_msi(chip); struct irq_data *d = irq_get_irq_data(irq); + struct msi_chip *chip = irq_get_chip_data(irq); + struct tegra_msi *msi = to_tegra_msi(chip); tegra_msi_free(msi, d->hwirq); } diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index 52bd3a1..2204456 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -342,7 +342,7 @@ static void clear_irq(unsigned int irq) msi->msi_attrib.multiple = 0; } -static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, +static int dw_msi_setup_irq(struct pci_dev *pdev, struct msi_desc *desc) { int irq, pos, msgvec; @@ -384,7 +384,7 @@ static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, return 0; } -static void dw_msi_teardown_irq(struct msi_chip *chip, unsigned int irq) +static void dw_msi_teardown_irq(unsigned int irq) { clear_irq(irq); } diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c index 4884ee5..647bc9f 100644 --- a/drivers/pci/host/pcie-rcar.c +++ b/drivers/pci/host/pcie-rcar.c @@ -615,9 +615,10 @@ static irqreturn_t rcar_pcie_msi_irq(int irq, void *data) return IRQ_HANDLED; } -static int rcar_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, +static int rcar_msi_setup_irq(struct pci_dev *pdev, struct msi_desc *desc) { + struct msi_chip *chip = pdev->bus->msi; struct rcar_msi *msi = to_rcar_msi(chip); struct rcar_pcie *pcie = container_of(chip, struct rcar_pcie, msi.chip); struct msi_msg msg; @@ -645,10 +646,11 @@ static int rcar_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev, return 0; } -static void rcar_msi_teardown_irq(struct msi_chip *chip, unsigned int irq) +static void rcar_msi_teardown_irq(unsigned int irq) { - struct rcar_msi *msi = to_rcar_msi(chip); struct irq_data *d = irq_get_irq_data(irq); + struct msi_chip *chip = irq_get_chip_data(irq); + struct rcar_msi *msi = to_rcar_msi(chip); rcar_msi_free(msi, d->hwirq); } diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 8fc9587..f6cb317 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -37,7 +37,7 @@ int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) if (!chip || !chip->setup_irq) return -EINVAL; - err = chip->setup_irq(chip, dev, desc); + err = chip->setup_irq(dev, desc); if (err < 0) return err; @@ -53,7 +53,7 @@ void __weak arch_teardown_msi_irq(unsigned int irq) if (!chip || !chip->teardown_irq) return; - chip->teardown_irq(chip, irq); + chip->teardown_irq(irq); } int __weak arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) diff --git a/include/linux/msi.h b/include/linux/msi.h index c3c70a6..762fe61 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -71,9 +71,8 @@ struct msi_chip { struct device_node *of_node; struct list_head list; - int (*setup_irq)(struct msi_chip *chip, struct pci_dev *dev, - struct msi_desc *desc); - void (*teardown_irq)(struct msi_chip *chip, unsigned int irq); + int (*setup_irq)(struct pci_dev *dev, struct msi_desc *desc); + void (*teardown_irq)(unsigned int irq); }; #endif /* LINUX_MSI_H */