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SubjectRe: [RFC PATCH] add pci_{request,free}_irq take #3
On Wed, Oct 04, 2006 at 09:26:33PM +0000, Frederik Deweerdt wrote:
> On Wed, Oct 04, 2006 at 02:33:11PM -0600, Matthew Wilcox wrote:
> > On Wed, Oct 04, 2006 at 08:29:38PM +0000, Frederik Deweerdt wrote:
> > > I see. Just to be sure that I got the matter right, does the issue boils
> > > down to a choice between:
> > woah, woah, woah, you're getting yourself confused here.
> yep :), I clearly missed the point you made there:
> http://lkml.org/lkml/2006/10/3/404
> I've re-read it, hope I've got it right this time.
> >
> > You're looking at what the architectures do here. We're not concerned
> > with that, we're concerned with what the device drivers do with whatever
> > value the architecture has stuck in pdev->irq.
> Not sure I get it still though. Is the issue more than just the location
> of the irq validation code? If yes, could you explain what are the
> differences between your proposal and Jeff's ?
>
> Anyway, let me have another try at summing up the issue:
>
> #1
> - generic irq validation code in include/linux/pci.h
> - arch specific irq validation code in include/asm/pci.h
> - is_irq_valid() called by pci_request_irq()

s/is_irq_valid/valid_irq/g methinks.

> BTW this is much like it's done for pci_resource_to_user()
>
> #2
> - generic irq validation code in include/linux/interrupt.h
> - arch specific irq validation code in include/asm/interrupt.h
> - include/linux/pci.h includes linux/interrupt.h
> - is_irq_valid() called by pci_request_irq() - and maybe others? -

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