On Tue, 3 Nov 2015, Grygorii Strashko wrote:
> On 11/03/2015 03:46 PM, Sebastian Andrzej Siewior wrote:
> > On 11/02/2015 08:30 PM, Grygorii Strashko wrote:
> >> On -RT above code will generate warnings, because
> >> driver_xx_hw_irq_handler()
> >> will be forced threaded (by default) and, as result, generic_handle_irq()
> >> will be called with IRQs enabled. To W/A this issue generic_handle_irq()
> >> can
> >> be surrounded by raw_spin_lock_irqsave/irqrestore(wa_lock).
> >
> > and what happens without -RT if you boot threadedirqs?
> >
>
> Yep. It will still warn :( Can be reworked to cover this case also, i think
> (if overall concept will be accepted)
wa_lock - I read that "Warning Annihilation Lock" - does not really
qualify as a concept.
Thanks,
tglx
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