Re: Removal of pci_find_* in 2.5

Eric W. Biederman (ebiederm@xmission.com)
16 Jul 2002 04:56:53 -0600


Greg KH <greg@kroah.com> writes:

> On Sun, Jul 14, 2002 at 02:07:01PM -0600, Eric W. Biederman wrote:
> >
> > The driver is a mtd map driver. It knows there is a rom chip behind
> > a pci->isa bridge. And it needs to find the pci->isa bridge to
> > properly set it up to access the rom chip (enable writes and the
> > like).
> >
> > It isn't a driver for the pci->isa bridge, (I'm not even certain we
> > have a good model for that). So it does not use pci_register_driver.
> >
> > If you can give me a good proposal for how to accomplish that kind of
> > functionality I would be happy to use the appropriate
> > xxx_register_driver.
>
> I don't think there is a good way for you to convert over to
> _register_driver(), that's the main reason I'm keeping the pci_find_*
> functions around, they are quite useful for lots of situations.
>
> It doesn't sound like you are worrying about your device working in a
> pci hotplug system, and you would probably be willing do any pci device
> conversion work to the new driver model yourself, right? :)

Assuming I can actually fit in better with the new driver model. As
far as hot-plug. It is an abuse but I regularly hot-swap my rom chips
in my development system.

I am probably looking at this from the wrong angle but my problem with
current code base seems to be that I can only have one driver per pci
device.

In any case I would like to have code that fits in nicely with the
new driver system. I can take about one change in kernel API. For
the most part the drivers are trivial, and having non-trivial
maintenance for trivial code is less than ideal.

Eric
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