Subject: [PATCH v7 5/6] pci: Export find_pci_host_bridge() function.

From: [email-masked] (Bjorn Helgaas)
Date: Fri, 4 Apr 2014 17:39:48 -0600

On Fri, Mar 14, 2014 at 03:34:31PM +0000, Liviu Dudau wrote:
> This is a useful function and we should make it visible outside the
> generic PCI code. Export it as a GPL symbol.
> 
> Signed-off-by: Liviu Dudau <[email-masked]>
> Tested-by: Tanmay Inamdar <[email-masked]>
> ---
>  drivers/pci/host-bridge.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/host-bridge.c b/drivers/pci/host-bridge.c
> index 06ace62..8708b652 100644
> --- a/drivers/pci/host-bridge.c
> +++ b/drivers/pci/host-bridge.c
> @@ -17,12 +17,13 @@ static struct pci_bus *find_pci_root_bus(struct pci_bus *bus)
>  	return bus;
>  }
>  
> -static struct pci_host_bridge *find_pci_host_bridge(struct pci_bus *bus)
> +struct pci_host_bridge *find_pci_host_bridge(struct pci_bus *bus)
>  {
>  	struct pci_bus *root_bus = find_pci_root_bus(bus);
>  
>  	return to_pci_host_bridge(root_bus->bridge);
>  }
> +EXPORT_SYMBOL_GPL(find_pci_host_bridge);

Do you have a place where you actually need to use find_pci_host_bridge()?
I'd rather not export it, even as _GPL, unless we have a user.

If we *do* export it, I'd like it to have a more conventional name, e.g.,
something starting with "pci_".

>  
>  void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
>  				 void (*release_fn)(struct pci_host_bridge *),
> -- 
> 1.9.0
>