Re: [Fwd: [PATCH v2 0/7] resource, PNPACPI: add bus number and window support]

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On Sat, 06 Mar 2010 20:39:11 -0700
Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote:

> Linus says:
> 
> > I have nothing against this patch-series, but I'm not really much of a 
> > pnp person, so I'd like to see this at a minimum being acked by people who 
> > are, and who would use this. 
> 
> > In fact, since the primary _reason_ for this seems to be to improve on the 
> > _CRS parsing code for PCI, I'd have expected that the people involved 
> > with previous _CRS issues be involved, and perhaps this whole thing could 
> > go through the PCI tree? But Yinghai Lu and Jesse Barnes weren't even 
> > cc'd. 
> 
> > But maybe this really is more of an ACPI issue. I dunno. I get the feeling 
> > that ACPI doesn't really care, though - the subsystem that actually gets 
> > _affected_ by all this in the end is PCI.
> 
> > Anyway, more acks, please. And preferably involve the PCI people too.
> 
> So here you go :-)  Please comment.
> 
> Linus is right; eventually I would like to use this to improve the PCI
> host bridge _CRS parsing.  I didn't think to include you at first because
> that goal is still so far off that I can only dimly envision it.  What I
> *can* see as possible steps are these:
> 
>   - add PNP support for bus number ranges and windows (these patches)
>   - initialize PNP (at least PNPACPI, probably PNPBIOS & ISAPNP also)
>     earlier, before PCI probing
>   - get rid of acpi_pci_root_start() by folding it into acpi_pci_root_add()
>     (this is the big one and will require lots of PCI and ACPI hotplug
>     cleanup that I don't know how to do yet)
>   - convert pci_root.c from an ACPI driver to a PNP driver
>   - remove pci_root.c _CRS parsing because PNPACPI already does it
> 
> The whole series is here: http://lkml.org/lkml/2010/3/5/243 and the
> cover is below.

Sounds like a good direction to me, assuming we can work through the
issues in this merge window (and it seems like you are).

Acked-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>

-- 
Jesse Barnes, Intel Open Source Technology Center
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