Re: [PATCH 4/7] mfd: hi6421-spmi-pmic: Use generic_handle_irq_safe().

[Lee Jones]

On Fri, 28 Jan 2022, Sergei Shtylyov wrote:

> On 1/27/22 2:33 PM, Sebastian Andrzej Siewior wrote:
> 
> > generic_handle_irq() is invoked from a regular interrupt service
> > routing. This handler will become a forced-threaded handler on
> 
>    s/routing/routine/?
> 
> > PREEMPT_RT and will be invoked with enabled interrupts. The
> > generic_handle_irq() must be invoked with disabled interrupts in order
> > to avoid deadlocks.
> > 
> > Instead of manually disabling interrupts before invoking use
> > generic_handle_irq() which can be invoked with enabled and disabled
> > interrupts.
> > 
> > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
> [...]
> 
> MBR, Sergey

What does that mean?

-- 
Lee Jones [李琼斯]
Principal Technical Lead - Developer Services
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