linux-kernel - Re: [PATCH] staging: sm750fb: Fix printk() style warning

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Message-ID: <20161007042736.GA18046@gmail.com>
Date:   Thu, 6 Oct 2016 21:27:36 -0700
From:   Edward Lipinsky <ellipinsky@...il.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     sudipm.mukherjee@...il.com, teddy.wang@...iconmotion.com,
        sudip@...torindia.org, linux-fbdev@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: sm750fb: Fix printk() style warning

On Sun, Oct 02, 2016 at 08:13:01PM +0200, Greg KH wrote:
> On Sun, Oct 02, 2016 at 11:05:05AM -0700, Edward Lipinsky wrote:
> > This patch fixes the checkpatch.pl warning:
> > 
> > WARNING: printk() should include KERN_ facility level
> > 
> > Signed-off-by: Edward Lipinsky <ellipinsky@...il.com>
> > ---
> >  drivers/staging/sm750fb/ddk750_help.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/sm750fb/ddk750_help.c b/drivers/staging/sm750fb/ddk750_help.c
> > index 9637dd3..e72a29c 100644
> > --- a/drivers/staging/sm750fb/ddk750_help.c
> > +++ b/drivers/staging/sm750fb/ddk750_help.c
> > @@ -11,7 +11,7 @@ void ddk750_set_mmio(void __iomem *addr, unsigned short devId, char revId)
> >  	devId750 = devId;
> >  	revId750 = revId;
> >  	if (revId == 0xfe)
> > -		printk("found sm750le\n");
> > +		pr_info("found sm750le\n");
> 
> Why can't you use dev_info() here?
> 
> thanks,
> 
> greg k-h

It should work, but I'm not sure what should change in the header files to
do it--esp. to make the dev parameter available in ddk750_help.c.  (Only
sm750.c uses dev_ style logging now, the rest of the driver still uses pr_*.)

Thanks,

Ed Lipinsky