[PATCH] of/irq: improve error message on irq discovery process failure

[Benjamin Herrenschmidt]

On Fri, 2016-11-11 at 16:32 +0000, Mark Rutland wrote:
> On Fri, Nov 11, 2016 at 08:30:43AM +1100, Benjamin Herrenschmidt
> wrote:
> > 
> > On Wed, 2016-11-09 at 19:04 +0000, Mark Rutland wrote:
> > > 
> > > 
> > > If we don't have an interrupt-map on a PCI controller, why don't
> > > we
> > > instead log a message regarding that being missing, and give up
> > > early?
> > 
> > Why ? It's legit to not support LSIs.
> 
> Sure; I had envisioned a message like:
> 
> 	pr_info("%s: no interrupt-map, INTx interrupts not possible\n",
> 		pci_controller_name);
> 
> ... Which tells the user exaclty what we know, and doesn't imply
> either
> an error or the actual absence of HW support.

Works for me.

Cheers,
Ben.