[V2,4/9] PCI: Export pci_find_host_bridge()

Message ID 1511638333-22951-5-git-send-email-mmaddireddy@nvidia.com
State New
Headers show
Series
  • Add loadable kernel module and power management support
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Commit Message

Manikanta Maddireddy Nov. 25, 2017, 7:32 p.m.
PCI subsystem pass pci_bus pointer to pci_ops callback functions, Tegra
host driver use pci_find_host_bridge() to get pci_host_bridge from pci_bus.
Export pci_find_host_bridge() to allow Tegra PCIe driver to be compiled as
loadable kernel module.

Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
---
V2:
* commit message update

 drivers/pci/host-bridge.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Christoph Hellwig Nov. 29, 2017, 5:35 p.m. | #1
On Sun, Nov 26, 2017 at 01:02:08AM +0530, Manikanta Maddireddy wrote:
> PCI subsystem pass pci_bus pointer to pci_ops callback functions, Tegra
> host driver use pci_find_host_bridge() to get pci_host_bridge from pci_bus.
> Export pci_find_host_bridge() to allow Tegra PCIe driver to be compiled as
> loadable kernel module.
> 
> Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
> ---
> V2:
> * commit message update
> 
>  drivers/pci/host-bridge.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
> index add66236215c..e0942fc086ad 100644
> --- a/drivers/pci/host-bridge.c
> +++ b/drivers/pci/host-bridge.c
> @@ -22,6 +22,7 @@ struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus)
>  
>  	return to_pci_host_bridge(root_bus->bridge);
>  }
> +EXPORT_SYMBOL(pci_find_host_bridge);

All PCI internals should be exported using EXPORT_SYMBOL_GPL.
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Patch

diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
index add66236215c..e0942fc086ad 100644
--- a/drivers/pci/host-bridge.c
+++ b/drivers/pci/host-bridge.c
@@ -22,6 +22,7 @@  struct pci_host_bridge *pci_find_host_bridge(struct pci_bus *bus)
 
 	return to_pci_host_bridge(root_bus->bridge);
 }
+EXPORT_SYMBOL(pci_find_host_bridge);
 
 struct device *pci_get_host_bridge_device(struct pci_dev *dev)
 {