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Date: Sun, 20 Sep 2015 09:21:58 +0900 From: Kohji Okuno <okuno.kohji@...panasonic.com> To: <tglx@...utronix.de> CC: <marc.zyngier@....com>, <linux-kernel@...r.kernel.org>, <okuno.kohji@...panasonic.com> Subject: Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting From: Thomas Gleixner <tglx@...utronix.de> Date: Sat, 19 Sep 2015 22:24:15 +0200 > No, we can't. We can only do that if the interrupt is not shared. > Assume the following scenario: > request_irq(irq, handler, IRQF_SHARED, "devA", devidA); > In case of force threading that sets the oneshot flag for the irq > descriptor. > Now the sdhci driver is initialized > request_thread_irq(irq, handler, thandler, IRQF_SHARED, > "sdhci", devidSDHCI); > The oneshot flag sticks and you run into exactly the same issue as > now. > Shared interrupts are a major pain, but we have to deal with them. > I'm working on a solution for that issue. > > Thanks, > tglx I understood. If you could prepare the patch, I can try it. Thanks, Kohji Okuno -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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