Re: [PATCH 0/3] PCI: designware: Fixing MSI handling flow

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On Mon, 26 Nov 2018 16:06:54 +0000,
Trent Piepho <tpiepho@xxxxxxxxxx> wrote:
> 
> On Thu, 2018-11-22 at 16:38 +0000, Marc Zyngier wrote:
> > 
> > To add to Lorenzo's comment, we're trying hard to have a *minimal* fix
> > that can be easily backported. Changing variable and field names as well
> > as flipping the semantic of other bits of the driver makes it harder to
> > review, and certainly doesn't help getting things backported to stable
> > (see the stable kernel rules).
> > 
> > I'd suggest this kind of repainting is better kept as a separate patch
> > and merged separately.
> 
> If you want a minimal fix to backport, you should just use my original
> patch for 4.15-4.19 stable series.  It's a one line change to fix the
> real bug.
> 
> It'll be far easier to backport to < 4.17,  where the hierarchical irq
> domain stuff wasn't used in this part of the driver.

The right fix is to create an irq_ack method and put the relevant code
there.

Thanks,

	M.

-- 
Jazz is not dead, it just smell funny.



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