Hi Barry, On Sat, Jan 02, 2021 at 05:29:02PM +1300, Barry Song wrote: > disable_irq() after request_irq is unsafe as it gives a time gap which > irq can come before disable_irq(). IRQ_NOAUTOEN is the common way to > avoid enabling IRQ due to requesting IRQ.
Actually it is OK for the ISR to fire before the input device is registered, input core allows that. What I would like to see is to allow passing something like IRQF_DISABLED to request_irq() so that we would not need neither irq_set_status_flags() nor disable_irq(). Thanks. -- Dmitry
