[PATCH 1/7] ARM: irq: introduce entry and exit functions for chained handlers

[tglx@linutronix.de (Thomas Gleixner)]

On Fri, 11 Mar 2011, Will Deacon wrote:

> > On Tue, 8 Mar 2011, Will Deacon wrote:
> > 
> > > Some chained IRQ handlers are written to cope with primary chips of
> > > potentially different flow types. Whether this a sensible thing to do
> > > is a point of contention.
> > 
> > That wants a comment that these functions are only dealing with
> > fasteoi and level type flow control.
> > 
> > Otherwise fine with me. Feel free to add my Acked-by.
> 
> Thanks Thomas, reworded as followed:
> 
>     ARM: irq: introduce entry and exit functions for chained handlers
>     
>     Some chained IRQ handlers are written to cope with primary chips of
>     potentially different flow types. Whether this a sensible thing to do
>     is a point of contention.
>     
>     This patch introduces entry/exit functions for chained handlers which
>     infer the flow type of the primary chip as fasteoi or level-type by
>     checking whether or not the ->irq_eoi function pointer is present and
>     calling back to the primary chip as necessary. Other methods of flow
>     control are not considered.
> 
> I'll add your Ack and put this (patch 1) in Russell's patch system next
> week.

Having it in the changelog is nice, but the code itself would like a
comment as well.

Thanks,

	tglx