Function report |
Source Code:kernel\irq\chip.c |
Create Date:2022-07-28 10:11:21 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:handle_nested_irq - Handle a nested irq from a irq thread*@irq: the interrupt number* Handle interrupts which are nested into a threaded interrupt* handler. The handler function is called inside the calling* threads context.
Proto:void handle_nested_irq(unsigned int irq)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
unsigned int | irq |
460 | desc = Interrupt to descriptor |
464 | might_sleep() |
466 | raw_spin_lock_irq( & lock) |
468 | istate &= ~(IRQS_REPLAY | IRQS_WAITING) |
470 | action = IRQ action list |
471 | If Value for the false possibility is greater at compile time(!action || irqd_irq_disabled( & irq_data)) Then |
472 | istate |= IRQS_PENDING |
473 | Go to out_unlock |
477 | irqd_set( & irq_data, IRQD_IRQ_INPROGRESS) |
478 | raw_spin_unlock_irq( & lock) |
480 | action_ret = IRQ_NONE |
482 | action_ret |= thread_fn(irq, dev_id) |
484 | If Not noirqdebug Then note_interrupt(desc, action_ret) |
487 | raw_spin_lock_irq( & lock) |
488 | irqd_clear( & irq_data, IRQD_IRQ_INPROGRESS) |
490 | out_unlock : |
491 | raw_spin_unlock_irq( & lock) |
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