From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manikanta Maddireddy Subject: [PATCH V4 2/7] PCI: tegra: Use bus->sysdata to store and get host private data Date: Fri, 8 Dec 2017 14:28:08 +0530 Message-ID: <1512723493-865-3-git-send-email-mmaddireddy@nvidia.com> References: <1512723493-865-1-git-send-email-mmaddireddy@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1512723493-865-1-git-send-email-mmaddireddy-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: cyndis-/1wQRMveznE@public.gmane.org, thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org Cc: jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org, tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, vidyas-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, kthota-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Manikanta Maddireddy List-Id: devicetree@vger.kernel.org Tegra host driver is using pci_find_host_bridge() to get private data, however pci_find_host_bridge() is causing module build failure because it is not exported. pci_find_host_bridge() can be avoided by using bus->sysdata to store and get private data. Signed-off-by: Manikanta Maddireddy --- V4: * new patch in V4 drivers/pci/host/pci-tegra.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c index 6f2f44539020..a549c5899e26 100644 --- a/drivers/pci/host/pci-tegra.c +++ b/drivers/pci/host/pci-tegra.c @@ -448,8 +448,7 @@ static unsigned long tegra_pcie_conf_offset(unsigned char b, unsigned int devfn, static int tegra_pcie_add_bus(struct pci_bus *bus) { - struct pci_host_bridge *host = pci_find_host_bridge(bus); - struct tegra_pcie *pcie = pci_host_bridge_priv(host); + struct tegra_pcie *pcie = bus->sysdata; struct tegra_pcie_bus *b; b = kzalloc(sizeof(*b), GFP_KERNEL); @@ -466,8 +465,7 @@ static int tegra_pcie_add_bus(struct pci_bus *bus) static void tegra_pcie_remove_bus(struct pci_bus *child) { - struct pci_host_bridge *host = pci_find_host_bridge(child); - struct tegra_pcie *pcie = pci_host_bridge_priv(host); + struct tegra_pcie *pcie = child->sysdata; struct tegra_pcie_bus *bus, *tmp; list_for_each_entry_safe(bus, tmp, &pcie->buses, list) { @@ -483,8 +481,7 @@ static void __iomem *tegra_pcie_map_bus(struct pci_bus *bus, unsigned int devfn, int where) { - struct pci_host_bridge *host = pci_find_host_bridge(bus); - struct tegra_pcie *pcie = pci_host_bridge_priv(host); + struct tegra_pcie *pcie = bus->sysdata; void __iomem *addr = NULL; u32 val = 0; u32 offset = 0; @@ -675,8 +672,7 @@ static int tegra_pcie_request_resources(struct tegra_pcie *pcie) static int tegra_pcie_map_irq(const struct pci_dev *pdev, u8 slot, u8 pin) { - struct pci_host_bridge *host = pci_find_host_bridge(pdev->bus); - struct tegra_pcie *pcie = pci_host_bridge_priv(host); + struct tegra_pcie *pcie = pdev->bus->sysdata; int irq; tegra_cpuidle_pcie_irqs_in_use(); @@ -2570,6 +2566,7 @@ static int tegra_pcie_probe(struct platform_device *pdev) return -ENOMEM; pcie = pci_host_bridge_priv(host); + host->sysdata = pcie; pcie->soc = of_device_get_match_data(dev); INIT_LIST_HEAD(&pcie->buses); -- 2.1.4