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Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting

From Kohji Okuno <okuno.kohji@jp.panasonic.com>
Newsgroups linux.kernel
Subject Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting
Date 2015-09-18 11:30 +0200
Message-ID <qa09t-6UG-21@gated-at.bofh.it> (permalink)
References <q9OL0-7kB-15@gated-at.bofh.it> <q9RSx-3n6-3@gated-at.bofh.it> <q9ZQ6-6yg-29@gated-at.bofh.it>
Organization Panasonic Corporation

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From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 18 Sep 2015 11:04:23 +0200
> That's weird. The flow is:
> 
> interrupt()
>   mask()
>   ret = primary_handler()
>   if (ret == WAKE_THREAD)
>     wake_thread()
>   else
>     unmask()
> 
> thread_handler()
>   ....
>   unmask()
> 
> So if an interrupt is triggered on the device while the interrupt is
> masked it should be raised again immediately when the unmask happens
> because its level type.
> 
> I'm wondering why that doesn't work.

Yes. I think so. And, I have just found that sdhci_thread_irq() don't
finish in this case. I'm analyzing about this now. But, after I apply
my patch, sdhci_thread_irq() can finish. I will share the result with
you.

Best regards,
 Kohji Okuno
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Thread

[PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-17 09:40 +0200
  Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Thomas Gleixner <tglx@linutronix.de> - 2015-09-17 10:10 +0200
    Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-17 10:30 +0200
      Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-17 11:50 +0200
        Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Thomas Gleixner <tglx@linutronix.de> - 2015-09-17 23:20 +0200
          Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-18 02:40 +0200
            Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Thomas Gleixner <tglx@linutronix.de> - 2015-09-18 11:10 +0200
              Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-18 11:30 +0200
                Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Marc Zyngier <marc.zyngier@arm.com> - 2015-09-18 12:10 +0200
                Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-18 13:00 +0200
                Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Thomas Gleixner <tglx@linutronix.de> - 2015-09-18 16:50 +0200
                Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-19 17:40 +0200
                Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Thomas Gleixner <tglx@linutronix.de> - 2015-09-19 22:30 +0200
                Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting Kohji Okuno <okuno.kohji@jp.panasonic.com> - 2015-09-20 02:30 +0200

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