From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Shimoda, Yoshihiro" <yoshihiro.shimoda.uh@renesas.com>
Date: Tue, 10 Jan 2012 05:56:33 +0000
Subject: Re: [PATCH v2 1/3] dmaengine: shdma: modify the DMAC Address Error
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To: linux-sh@vger.kernel.org

2012/01/10 14:33, Paul Mundt wrote:
> On Tue, Jan 10, 2012 at 02:20:16PM +0900, Shimoda, Yoshihiro wrote:
>> +		if (chanirq_res = errirq_res ||
>> +		    (errirq_res->flags & IORESOURCE_BITS) =
>> +		    IORESOURCE_IRQ_SHAREABLE)
>> +			irqflags = IRQF_SHARED;
>> +
> While not your fault, it seems that there are a few of these cases in
> which the irqflags are clobbered rather than added to. Is there some
> particular reason why we aren't doing |= IRQF_SHARED on top of the
> default IRQF_DISABLED case?
> 

I guess that old kernel (before the commit of 6932bf37 "genirq: Remove IRQF_DISABLED from
core code") output some warning in request_irq() when irqflags is set to
"IRQF_DISABLED | IRQF_SHARED".

By the way, according to the "feature-removal-schedule.txt", the IRQF_DISABLED will remove.
So, we can remove the IRQF_DISABLED in the shdma driver, I think.

Best regards,
Yoshihiro Shimoda