linux-kernel - Re: [PATCH] PCI: Move prototypes for EXPORT_SYMBOL functions to include/linux/pci.h

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Date:	Fri, 13 Jul 2007 01:10:46 -0500 (CDT)
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Greg KH <greg@...ah.com>
cc:	linux-pci@...ey.karlin.mff.cuni.cz, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] PCI: Move prototypes for EXPORT_SYMBOL functions to
 include/linux/pci.h

On Thu, 12 Jul 2007, Greg KH wrote:

> On Fri, Jul 13, 2007 at 12:55:39AM -0500, Kumar Gala wrote:
> >
> >  On Jul 13, 2007, at 12:33 AM, Greg KH wrote:
> >
> > > On Fri, Jul 13, 2007 at 12:16:29AM -0500, Kumar Gala wrote:
> > >> pci_do_scan_bus() and pci_bus_find_capability() are marked EXPORT_SYMBOL
> > >> and thus usable outside of the PCI drive core itself.  Make the prototypes
> > >> for these functions accessible to everyone.
> > >
> > > Well, no, I'd like to only have the pci hotplug drivers use them if
> > > possible.  So until we have proper namespaces on the exported symbols,
> > > I'd really like to keep these as-is if possible.
> > >
> > > Or are you needing these symbols for some code outside of the
> > > drivers/pci/ directory tree?
> >
> >  I need pci_bus_find_capability() in arch/powerpc pci code.
> >
> >  I'm using it as a way to tell if we are a PCIe PHB.
>
> Ok, care to export only that function then?

that's fine, will do.

I assume we want to kill the prototype pci_bus_alloc_resource() in
drivers/pci/pci.h since its duplicated in include/linux/pci.h

Also, I wasn't sure 'extern int pci_bus_find_capability'.. or just 'int
pci_bus_find_capability'?

-k
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