On 06/21/13 08:56, Thomas Gleixner wrote:
>
>> +static irqreturn_t gt_clockevent_interrupt(int irq, void *dev_id)
>> +{
>> + struct clock_event_device *evt = *(struct clock_event_device **)dev_id;
> What kind of construct is this?
>
> You are using request_percpu_irq() and the device id is pointing to
> per cpu memory. Why do you need this horrible pointer indirection?
>
> Because a lot of other ARM code uses the same broken construct?
This is an artifact of the ARM local timer API. I have been trying for a
few months to remove the API but I need my first two patches to go
through the tip/timers tree. Please accept them so we don't have this
construct anymore.
https://lkml.org/lkml/2013/6/3/584
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