Re: [PATCH V3 2/7] PCI: Export pci_find_host_bridge()

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On Fri, Dec 01, 2017 at 02:50:02PM +0530, Manikanta Maddireddy wrote:
> PCI subsystem pass pci_bus pointer to pci_ops callback functions, Tegra

s/PCI subsystem pass/The PCI subsystem passes a/
s/, Tegra/.  The Tegra/

> host driver use pci_find_host_bridge() to get pci_host_bridge from pci_bus.

s/use/uses/

> Export pci_find_host_bridge() to allow Tegra PCIe driver to be compiled as
> loadable kernel module.

s/allow Tegra/allow the Tegra/
s/loadable/a loadable/

But why do you need pci_find_host_bridge() at all?  Most drivers use
the pci_bus.sysdata pointer for this purpose, e.g., see db271747a04d
("PCI: mediatek: Use bus->sysdata to get host private data")

> Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
> ---
> V2:
> * commit message update
> V3:
> * EXPORT_SYMBOL is changed to EXPORT_SYMBOL_GPL
> 
>  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..b8c0fcde9bd7 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_GPL(pci_find_host_bridge);
>  
>  struct device *pci_get_host_bridge_device(struct pci_dev *dev)
>  {
> -- 
> 2.1.4
> 



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