Re: [patch 2/2] PNPACPI: fix shareable IRQ encode/decode

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On Wednesday 28 May 2008 05:14:49 pm Rene Herman wrote:
> On 29-05-08 00:05, Bjorn Helgaas wrote:
> 
> > On Wednesday 28 May 2008 02:58:47 pm Rene Herman wrote:
> >> On 28-05-08 00:49, Bjorn Helgaas wrote:
> >>
> >>> When we encode IRQ resources, we should use the "shareable"
> >>> flag we got from _PRS rather than guessing based on the
> >>> IRQ trigger mode.
> >>>
> >>> This is based on a patch by Tom Jaeger <ThJaeger@xxxxxxxxx>:
> >>>     http://bugzilla.kernel.org/show_bug.cgi?id=9487#c32
> >>>
> >>> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
> >> Not-commented-on-by: Rene Herman <rene.herman@xxxxxxxxx>
> >>
> >> Makes sense patchwise but one would expect that it wasn't that way to 
> >> start with due to perhaps some/many/most BIOSen not encoding the flag 
> >> correctly in _PRS. Don't know ACPI though...
> > 
> > I added IORESOURCE_IRQ_SHAREABLE recently:
> >   http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=c32928c579d88acd43981b59e86900da65f40762
> > 
> > and I just didn't notice these places at the time.  If I had,
> > I would have made this change then.  It's possible we could
> > trip over a BIOS issue, but I don't *think* that's why it's
> > been this way in the past.
> 
> Ah, I see. Was likely just a matter of originally not having a place to 
> stash it then (by the way, time flies; "recently" is almost two years 
> ago...)

Yep.  Time does fly when you're having fun :-)

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