linux-kernel - Re: [PATCH 1/4] block: xsysace: Don't use NO

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Message-ID: <20120102082104.GC18381@ponder.secretlab.ca>
Date:	Mon, 2 Jan 2012 01:21:04 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Michal Simek <monstr@...str.eu>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org,
	Rob Herring <rob.herring@...xeda.com>,
	Ryan Mallon <rmallon@...il.com>
Subject: Re: [PATCH 1/4] block: xsysace: Don't use NO_IRQ

On Wed, Dec 21, 2011 at 03:32:09PM +0100, Michal Simek wrote:
> Drivers shouldn't use NO_IRQ. Microblaze and PPC
> define NO_IRQ as 0 and this reference will be removed
> in near future.
> 
> Signed-off-by: Michal Simek <monstr@...str.eu>
> CC: Grant Likely <grant.likely@...retlab.ca>
> CC: Rob Herring <rob.herring@...xeda.com>
> CC: Ryan Mallon <rmallon@...il.com>

Acked-by: Grant Likely <grant.likely@...retlab.ca>

> ---
>  drivers/block/xsysace.c |   10 +++++-----
>  1 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
> index fb1975d..1a17e33 100644
> --- a/drivers/block/xsysace.c
> +++ b/drivers/block/xsysace.c
> @@ -456,7 +456,7 @@ static inline void ace_fsm_yieldirq(struct ace_device *ace)
>  {
>  	dev_dbg(ace->dev, "ace_fsm_yieldirq()\n");
>  
> -	if (ace->irq == NO_IRQ)
> +	if (!ace->irq)
>  		/* No IRQ assigned, so need to poll */
>  		tasklet_schedule(&ace->fsm_tasklet);
>  	ace->fsm_continue_flag = 0;
> @@ -1034,12 +1034,12 @@ static int __devinit ace_setup(struct ace_device *ace)
>  		ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ);
>  
>  	/* Now we can hook up the irq handler */
> -	if (ace->irq != NO_IRQ) {
> +	if (ace->irq) {
>  		rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace);
>  		if (rc) {
>  			/* Failure - fall back to polled mode */
>  			dev_err(ace->dev, "request_irq failed\n");
> -			ace->irq = NO_IRQ;
> +			ace->irq = 0;
>  		}
>  	}
>  
> @@ -1086,7 +1086,7 @@ static void __devexit ace_teardown(struct ace_device *ace)
>  
>  	tasklet_kill(&ace->fsm_tasklet);
>  
> -	if (ace->irq != NO_IRQ)
> +	if (ace->irq)
>  		free_irq(ace->irq, ace);
>  
>  	iounmap(ace->baseaddr);
> @@ -1156,7 +1156,7 @@ static int __devinit ace_probe(struct platform_device *dev)
>  	resource_size_t physaddr = 0;
>  	int bus_width = ACE_BUS_WIDTH_16; /* FIXME: should not be hard coded */
>  	u32 id = dev->id;
> -	int irq = NO_IRQ;
> +	int irq = 0;
>  	int i;
>  
>  	dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
> -- 
> 1.7.5.4
> 
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