lkml.org 
[lkml]   [2005]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [patch 1/3] pci: store PCI_INTERRUPT_PIN in pci_dev
From
Date
On Thu, 2005-10-27 at 16:06 -0700, Rajesh Shah wrote:
> On Thu, Oct 27, 2005 at 12:30:09PM -0700, Kristen Accardi wrote:
> > --- linux-2.6.13.orig/drivers/pci/probe.c
> > +++ linux-2.6.13/drivers/pci/probe.c
> > @@ -571,6 +571,7 @@ static void pci_read_irq(struct pci_dev
> > unsigned char irq;
> >
> > pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq);
> > + dev->pin = irq;
>
> pci_read_irq() is not called for PCI bridges, but some of them
> may need an interrupt (e.g. for shpchp, pciehp). Did you check
> if this patchset broke such bridges? You should call this
> function for PCI bridges too.
>
> Rajesh
>

You are correct, this does break for bridges on certain architectures.
Some archs seem to re-read the interrupt pin value in
pcibios_enable_device, but others don't. Adding pci_read_irq to the
bridge patch in this function does seem to fix the problem, and arch
specific code can still override this. I'll send a new patch for that.
thanks,
Kristen

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-11-03 01:17    [W:3.060 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site