[PATCH v8 2/9] pci: Export find_pci_host_bridge() function.

Arnd Bergmann
2014-07-03T10:26:32Z

On Wednesday 02 July 2014 13:43:41 Tanmay Inamdar wrote:
> On Wed, Jul 2, 2014 at 12:12 PM, Arnd Bergmann <arnd@arndb.de> wrote:
> > I think EXPORT_SYMBOL_GPL() is better here. The new symbols are unlikely
> > to be used by a peripheral device driver, and PCI host controllers are
> > already restricted by EXPORT_SYMBOL_GPL.
> >
>
> You are right as long as the functions are not used directly. But what
> if GPL functions are called indirectly. For example, 'pci_domain_nr'
> implementation in Liviu's V7 series calls 'find_pci_host_bridge'.

Good point. If pci_domain_nr() doesn't require access to an EXPORT_SYMBOL_GPL
symbol, it should not start doing that after this patch.

For of_create_pci_host_bridge() however, I can't think of any reason to use
a legacy EXPORT_SYMBOL.

Arnd