Re: [PATCH] clockevents: Add (missing) default case for switch blocks

[Peter Zijlstra]

On Fri, Feb 20, 2015 at 10:36:59AM +0100, Ingo Molnar wrote:
> > But it does mean we need to be able to add values to the 
> > enum.
> 
> So I'm confused: if we are using proper callbacks (like my 
> example outlined) , why is a 'mode enum' needed at all?

Ah, its because the enum is shared between two different use-cases. The
one is the clockevent driver for the clock_event_device::set_mode()
call, and one is the clockevent core call: clockevent_set_mode().

The previous patch changed the driver interface, but retained the
sharing of the enum across both interfaces.

Maybe we should break that enum into two; one for devices and one for
the core interface and avoid the problem that way.
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