linux-kernel - Re: [PATCH] genirq: Fix bad IRQ

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Date:	Fri, 18 Sep 2015 16:46:24 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Kohji Okuno <okuno.kohji@...panasonic.com>
cc:	marc.zyngier@....com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting

On Fri, 18 Sep 2015, Kohji Okuno wrote:
> 
> irq thread(runs sdhci_thread_irq()) is waiting on
> drivers/mmc/core/core.c:mmc_wait_for_req_done() in order to access
> a SDIO register. And, this thread shoud be woken up from
> sdhci_irq() after the completion of the register access.
> But, since the IRQ is masked, sdhci_irq() is not called and  irq
> thread can not wake up. This is root cause, I think.
> What do you think about this?

Ah, that explains it. Let me think about it a bit.

Thanks,

	tglx
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