linux-kernel - Re: [RFC PATCH] add pci_{request,free}

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Message-ID: <20061003222910.GJ2785@slug>
Date:	Tue, 3 Oct 2006 22:29:10 +0000
From:	Frederik Deweerdt <deweerdt@...e.fr>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	linux-kernel@...r.kernel.org, arjan@...radead.org, matthew@....cx,
	alan@...rguk.ukuu.org.uk, akpm@...l.org, rdunlap@...otime.net,
	gregkh@...e.de
Subject: Re: [RFC PATCH] add pci_{request,free}_irq take #2

> >Index: 2.6.18-mm3/include/linux/interrupt.h
> >===================================================================
> >--- 2.6.18-mm3.orig/include/linux/interrupt.h
> >+++ 2.6.18-mm3/include/linux/interrupt.h
> >@@ -75,6 +75,13 @@ struct irqaction {
> > 	struct proc_dir_entry *dir;
> > };
> > +#ifndef ARCH_VALIDATE_PCI_IRQ
> >+static inline int is_irq_valid(unsigned int irq)
> >+{
> >+	return irq ? 1 : 0;
> >+}
> >+#endif /* ARCH_VALIDATE_PCI_IRQ */
> 
> It's not appropriate to have PCI IRQ stuff in linux/interrupt.h.
> 
> This is precisely why I passed 'struct pci_dev *' to a PCI-specific irq validation function, and prototyped it in linux/pci.h.
> 
My bad, I've mixed your proposal and Matthew's, isn't this just a
matter of:
s/ARCH_VALIDATE_PCI_IRQ/ARCH_VALIDATE_IRQ/ ?

I'll look if there's some non-PCI code that might check the irq's value
and thus might benefit from this.

Regards,
Frederik
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