Re: [PATCH 06/14] [media] cx18: Use current logging styles

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On Sat, 2011-08-27 at 19:05 +0200, Jean-Francois Moine wrote:
> On Sat, 27 Aug 2011 09:42:32 -0700
> Joe Perches <joe@xxxxxxxxxxx> wrote:
> 
> > Andy, I fully understand how this stuff works.
> > You apparently don't (yet).
> > 
> > Look at include/linux/printk.h
> > 
> > #ifndef pr_fmt
> > #define pr_fmt(fmt) fmt
> > #endif
> > 
> > A default empty define is used when one
> > is not specified before printk.h is
> > included.  kernel.h includes printk.h
> 
> Hi Joe,
> 
> Yes, but, what if pr_fmt is redefined in some driver specific include
> by:
> 
> #undef pr_fmt
> #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

Of course that's possible.

But any pr_<level> that is used by any .h file
that is included before this redefine like
for instance netdevice.h doesn't have a
properly specified pr_fmt.


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