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

From: Sergei Shtylyov
Date: Fri Jan 28 2022 - 14:37:37 EST


On 1/28/22 7:50 PM, Lee Jones 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?
>>
>> Ah, you were asking about MBR! My best regards then. :-)
>
> Yes this. It's okay, Dan was kind enough to enlighten me.
>
> Every day is a school day on the list! :)

It's not exactly a well known phrase, I like it mainly because it also stands
for the Master Boot Record. :-)

MBR, Sergey