linux-kernel - Re: [PATCH] i2c: axxia: Add I2C driver for AXM55xx

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Message-ID: <20140922144904.GA1465@katana>
Date:	Mon, 22 Sep 2014 16:49:05 +0200
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Anders Berg <anders.berg@...gotech.com>,
	devicetree <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, linux-i2c@...r.kernel.org
Subject: Re: [PATCH] i2c: axxia: Add I2C driver for AXM55xx

On Mon, Sep 22, 2014 at 02:03:51PM +0100, Russell King - ARM Linux wrote:
> On Mon, Sep 22, 2014 at 11:59:39AM +0200, Wolfram Sang wrote:
> > IRQ_NONE is "this interrupt wasn't by me" so for shared IRQs, the next
> > handler can check.
> 
> Err, no it isn't.  IRQ_NONE has no such effect.  All handlers on a
> shared interrupt are always run irrespective of the return value from
> any particular interrupt handler.  See kernel/irq/handle.c.

/me picks the brown paper bag. I was sure I did. Need to update my
notes, it seems. Thanks for the heads up!


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