[PATCH V6 2/7] PCI: tegra: Use bus->sysdata to store and get host private data

[Manikanta Maddireddy <mmaddireddy@nvidia.com>]

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 <mmaddireddy@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
---
V4:
* new patch in V4
V5:
* Rebase on top of linux-next
V6:
* no change in this patch

 drivers/pci/host/pci-tegra.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 4c105fbda777..059aa73d5f76 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -379,8 +379,7 @@ 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;
 
 	if (bus->number == 0) {
@@ -573,8 +572,7 @@ 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();
@@ -2258,6 +2256,7 @@ 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->ports);
-- 
2.1.4