Jan Kiszka wrote:
> Gilles,
> I happened to come across rthal_mark_irq_disabled/enabled on arm. On
> first glance, it looks like these helpers manipulate irq_desc::status
> non-atomically, i.e. without holding irq_desc::lock. Isn't this fragile?

>From my point of view, locking anything would be overkill on ARM: irq
configurations are completely static as per the board, and so, ARMs can
use proper irq demuxing, instead of the "shared irqs" workaround. So, in
other word, I do not see why we would need any locking.


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