linux-kernel - Re: [PATCH] drivers/rtc/rtc-tps65910.c: Add IRQF

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Message-ID: <20151125184149.GQ3950@piout.net>
Date:	Wed, 25 Nov 2015 19:41:49 +0100
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Saurabh Sengar <saurabh.truth@...il.com>
Cc:	a.zummo@...ertech.it, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers/rtc/rtc-tps65910.c: Add IRQF_ONESHOT to
 interrupt flags

Hi,

On 25/11/2015 at 23:49:57 +0530, Saurabh Sengar wrote :
> If no primary handler is specified for threaded_irq then a
> default one is assigned which always returns IRQ_WAKE_THREAD.
> This handler requires the IRQF_ONESHOT, because the source of
> interrupt is not disabled
> 

Are you sure this is necessary? The parent irqchip is the mfd and it
sets IRQF_ONESHOT.

Does that solve a real problem or is it a false positive coming from a
static analysis tool?


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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