Re: [PATCH] dummy-irq: introduce a dummy IRQ handler driver (was Re: gm45 intel gfx can generate non-MSI irq# in MSI mode (was Re: [PATCH] drm/i915: stop using GMBUS IRQs on Gen4 chips (was Re: [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt respo))

[Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>]

On Thu, Mar 21, 2013 at 12:21:21AM +0100, Jiri Kosina wrote:
> On Wed, 20 Mar 2013, Alan Stern wrote:
> 
> > > Ok, so how about this?
> > > Daniel, is it enough to make the problem appear on your system (by 
> > > building this into the kernel and booting with dummy-irq.irq=16)?
> > > 
> > > Thanks.
> > > 
> > > From: Jiri Kosina <jkosina-AlSwsSmVLrQ@public.gmane.org>
> > > Subject: [PATCH] dummy-irq: introduce a dummy IRQ handler driver
> > > 
> > > This module accepts a single 'irq' parameter, which it should register for.
> > > 
> > > Its sole purpose is to help with debugging of IRQ sharing problems, by
> > > force-enabling IRQ that would otherwise be disabled.
> > > 
> > > Suggested-by: Alan Stern <stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org>
> > > Signed-off-by: Jiri Kosina <jkosina-AlSwsSmVLrQ@public.gmane.org>
> > 
> > This is just what I was thinking of.  Three extremely minor 
> > suggestions...
> 
> Thanks Alan. Updated version below.
> 
> Greg, willing to merge this simple debugging facility?

Yes, I'll take it, give me a few days to catch up with my pending queue,
don't worry, it's not lost.

greg k-h
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