[PATCH] omap3: isp: fix compiler warning

[PATCH] omap3: isp: fix compiler warning

[Sanjeev Premi]

This patch fixes this compiler warning:
  drivers/media/video/omap3isp/isp.c: In function 'isp_isr_dbg':
  drivers/media/video/omap3isp/isp.c:392:2: warning: zero-length
   gnu_printf format string

Since printk() is used in next few statements, same was used
here as well.

Signed-off-by: Sanjeev Premi <premi@ti.com>
Cc: laurent.pinchart@ideasonboard.com
---

 Actually full block can be converted to dev_dbg()
 as well; but i am not sure about original intent
 of the mix.

 Based on comments, i can resubmit with all prints
 converted to dev_dbg.



 drivers/media/video/omap3isp/isp.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/media/video/omap3isp/isp.c b/drivers/media/video/omap3isp/isp.c
index 503bd79..1d38d96 100644
--- a/drivers/media/video/omap3isp/isp.c
+++ b/drivers/media/video/omap3isp/isp.c
@@ -387,7 +387,7 @@ static inline void isp_isr_dbg(struct isp_device *isp, u32 irqstatus)
 	};
 	int i;
 
-	dev_dbg(isp->dev, "");
+	printk(KERN_DEBUG "%s:\n", dev_driver_string(isp->dev));
 
 	for (i = 0; i < ARRAY_SIZE(name); i++) {
 		if ((1 << i) & irqstatus)
-- 
1.7.2.2

Re: [PATCH] omap3: isp: fix compiler warning

[Mauro Carvalho Chehab]

Em 18-05-2011 13:06, Sanjeev Premi escreveu:
> This patch fixes this compiler warning:
>   drivers/media/video/omap3isp/isp.c: In function 'isp_isr_dbg':
>   drivers/media/video/omap3isp/isp.c:392:2: warning: zero-length
>    gnu_printf format string
> 
> Since printk() is used in next few statements, same was used
> here as well.
> 
> Signed-off-by: Sanjeev Premi <premi@ti.com>
> Cc: laurent.pinchart@ideasonboard.com
> ---
> 
>  Actually full block can be converted to dev_dbg()
>  as well; but i am not sure about original intent
>  of the mix.
> 
>  Based on comments, i can resubmit with all prints
>  converted to dev_dbg.

It is probably better to convert the full block to dev_dbg.

> 
> 
> 
>  drivers/media/video/omap3isp/isp.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/media/video/omap3isp/isp.c b/drivers/media/video/omap3isp/isp.c
> index 503bd79..1d38d96 100644
> --- a/drivers/media/video/omap3isp/isp.c
> +++ b/drivers/media/video/omap3isp/isp.c
> @@ -387,7 +387,7 @@ static inline void isp_isr_dbg(struct isp_device *isp, u32 irqstatus)
>  	};
>  	int i;
>  
> -	dev_dbg(isp->dev, "");
> +	printk(KERN_DEBUG "%s:\n", dev_driver_string(isp->dev));
>  
>  	for (i = 0; i < ARRAY_SIZE(name); i++) {
>  		if ((1 << i) & irqstatus)

Cheers,
Mauro

Re: [PATCH] omap3: isp: fix compiler warning

[Laurent Pinchart]

Hi Mauro and Sanjeev,

On Saturday 21 May 2011 12:55:32 Mauro Carvalho Chehab wrote:
> Em 18-05-2011 13:06, Sanjeev Premi escreveu:
> > This patch fixes this compiler warning:
> >   drivers/media/video/omap3isp/isp.c: In function 'isp_isr_dbg':
> >   drivers/media/video/omap3isp/isp.c:392:2: warning: zero-length
> >   
> >    gnu_printf format string
> > 
> > Since printk() is used in next few statements, same was used
> > here as well.
> > 
> > Signed-off-by: Sanjeev Premi <premi@ti.com>
> > Cc: laurent.pinchart@ideasonboard.com
> > ---
> > 
> >  Actually full block can be converted to dev_dbg()
> >  as well; but i am not sure about original intent
> >  of the mix.
> >  
> >  Based on comments, i can resubmit with all prints
> >  converted to dev_dbg.
> 
> It is probably better to convert the full block to dev_dbg.

You can't insert a KERN_CONT with dev_dbg().

> >  drivers/media/video/omap3isp/isp.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/media/video/omap3isp/isp.c
> > b/drivers/media/video/omap3isp/isp.c index 503bd79..1d38d96 100644
> > --- a/drivers/media/video/omap3isp/isp.c
> > +++ b/drivers/media/video/omap3isp/isp.c
> > @@ -387,7 +387,7 @@ static inline void isp_isr_dbg(struct isp_device
> > *isp, u32 irqstatus)
> > 
> >  	};
> >  	int i;
> > 
> > -	dev_dbg(isp->dev, "");
> > +	printk(KERN_DEBUG "%s:\n", dev_driver_string(isp->dev));

The original code doesn't include any \n. Is there a particular reason why you 
want to add one ?

> >  	for (i = 0; i < ARRAY_SIZE(name); i++) {
> >  	
> >  		if ((1 << i) & irqstatus)

-- 
Regards,

Laurent Pinchart

RE: [PATCH] omap3: isp: fix compiler warning

[Premi, Sanjeev]

> -----Original Message-----
> From: Laurent Pinchart [mailto:laurent.pinchart@ideasonboard.com] 
> Sent: Monday, May 23, 2011 12:56 AM
> To: Mauro Carvalho Chehab
> Cc: Premi, Sanjeev; linux-media@vger.kernel.org
> Subject: Re: [PATCH] omap3: isp: fix compiler warning
> 
> Hi Mauro and Sanjeev,
> 
> On Saturday 21 May 2011 12:55:32 Mauro Carvalho Chehab wrote:
> > Em 18-05-2011 13:06, Sanjeev Premi escreveu:
> > > This patch fixes this compiler warning:
> > >   drivers/media/video/omap3isp/isp.c: In function 'isp_isr_dbg':
> > >   drivers/media/video/omap3isp/isp.c:392:2: warning: zero-length
> > >   
> > >    gnu_printf format string
> > > 
> > > Since printk() is used in next few statements, same was used
> > > here as well.
> > > 
> > > Signed-off-by: Sanjeev Premi <premi@ti.com>
> > > Cc: laurent.pinchart@ideasonboard.com
> > > ---
> > > 
> > >  Actually full block can be converted to dev_dbg()
> > >  as well; but i am not sure about original intent
> > >  of the mix.
> > >  
> > >  Based on comments, i can resubmit with all prints
> > >  converted to dev_dbg.
> > 
> > It is probably better to convert the full block to dev_dbg.
> 
> You can't insert a KERN_CONT with dev_dbg().

[sp] I did realize that hence changed only the call to dev_dbg.

> 
> > >  drivers/media/video/omap3isp/isp.c |    2 +-
> > >  1 files changed, 1 insertions(+), 1 deletions(-)
> > > 
> > > diff --git a/drivers/media/video/omap3isp/isp.c
> > > b/drivers/media/video/omap3isp/isp.c index 503bd79..1d38d96 100644
> > > --- a/drivers/media/video/omap3isp/isp.c
> > > +++ b/drivers/media/video/omap3isp/isp.c
> > > @@ -387,7 +387,7 @@ static inline void isp_isr_dbg(struct 
> isp_device
> > > *isp, u32 irqstatus)
> > > 
> > >  	};
> > >  	int i;
> > > 
> > > -	dev_dbg(isp->dev, "");
> > > +	printk(KERN_DEBUG "%s:\n", dev_driver_string(isp->dev));
> 
> The original code doesn't include any \n. Is there a 
> particular reason why you 
> want to add one ?

[sp] Sorry, that's a mistake out of habit.
     Another way to fix warning would be to make the string meaningful:

-	dev_dbg(isp->dev, "");
+	dev_dbg (isp->dev, "ISP_IRQ:");

     Is this better?

~sanjeev

> 
> > >  	for (i = 0; i < ARRAY_SIZE(name); i++) {
> > >  	
> > >  		if ((1 << i) & irqstatus)
> 
> -- 
> Regards,
> 
> Laurent Pinchart
> 

Re: [PATCH] omap3: isp: fix compiler warning

[Laurent Pinchart]

Hi Sanjeev,

On Monday 23 May 2011 20:09:58 Premi, Sanjeev wrote:
> On Monday, May 23, 2011 12:56 AM Laurent Pinchart wrote:
> > On Saturday 21 May 2011 12:55:32 Mauro Carvalho Chehab wrote:
> > > Em 18-05-2011 13:06, Sanjeev Premi escreveu:

[snip]

> > > > @@ -387,7 +387,7 @@ static inline void isp_isr_dbg(struct
> > > > isp_device *isp, u32 irqstatus)
> > > > 
> > > >  	};
> > > >  	int i;
> > > > 
> > > > -	dev_dbg(isp->dev, "");
> > > > +	printk(KERN_DEBUG "%s:\n", dev_driver_string(isp->dev));
> > 
> > The original code doesn't include any \n. Is there a
> > particular reason why you
> > want to add one ?
> 
> [sp] Sorry, that's a mistake out of habit.
>      Another way to fix warning would be to make the string meaningful:
> 
> -	dev_dbg(isp->dev, "");
> +	dev_dbg (isp->dev, "ISP_IRQ:");
> 
>      Is this better?

That looks good to me. I'll queue your patch in my tree (with a space after 
the colon). Thanks.

-- 
Regards,

Laurent Pinchart