RE: [PATCH] genirq: Add the IRQS_ONESHOT support for edge interrupt

[Liu, Chuansheng]

> This comment might help.
> kernel/irq/manage.c
> 
>     } else if (new->handler == irq_default_primary_handler) {
> 
>         /*
>          * The interrupt was requested with handler = NULL, so
>          * we use the default primary handler for it. But it
>          * does not have the oneshot flag set. In combination
>          * with level interrupts this is deadly, because the
>          * default primary handler just wakes the thread, then
>          * the irq lines is reenabled, but the device still
>          * has the level irq asserted. Rinse and repeat....
>          *
>          * While this works for edge type interrupts, we play
>          * it safe and reject unconditionally because we can't
>          * say for sure which type this interrupt really
>          * has. The type flags are unreliable as the
>          * underlying chip implementation can override them.
>          */

This is not my case. My request_irq is as below:
request_threaded_irq(drv_data->irq,
                                          func1,
                                          func2,
                                          IRQF_SHARED|IRQS_ONESHOT ,
                                          "AAAA",
                                          drv_data);