Re: [PATCH] pata_legacy: Allow disabling of legacy PATA device probes on non-PCI systems

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On Wed, 30 Nov 2016 16:11:39 +0300
Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx> wrote:

> Hello.
> 
> On 11/29/2016 08:53 PM, Matthew Whitehead wrote:
> 
> > If there is no PCI bus detected in drivers/ata/pata_legacy.c, it registers all the
> > common legacy PATA devices. This includes I/O ports (0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160)
> > and also their associated interrupts (14,15,11,10,8,12).
> >
> > Unfortunately, on such systems those interrupt lines are at a premium because there is no
> > PCI alternative. This patch allows you to disable individual port/interrupt pairs by providing
> > a list of ports to skip allocating.

In what situation do you actually hit this. The probes should fail so the
interrupt shouldn't end up allocated.

Alan
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