[ewg] Re: [PATCH 2/14 v2] nes: device structures and defines

Stephen Hemminger shemminger at linux-foundation.org
Fri Oct 19 22:26:20 PDT 2007


On Fri, 19 Oct 2007 22:22:44 -0700
Roland Dreier <rdreier at cisco.com> wrote:

>  > You are starting off on the wrong foot.
> 
> ???

That was a introductory comment because even in reviewing the first
file (which had almost no code), I saw so many style issues.

>  > > +if(!(expr)) {														\
>  > > +	printk(KERN_ERR PFX "Assertion failed! %s, %s, %s, line %d\n",	\
>  > > +		   #expr, __FILE__, __FUNCTION__, __LINE__);				\
>  > > +}
>  > 
>  > Use BUG_ON
> 
> I agree that there's no need to invent a driver-private assertion
> macro, but (to first order at least) drivers should never use BUG_ON.
> I don't want some glitch in a network driver that the system could
> probably survive to be turned into a panic by BUG_ON -- WARN_ON seems
> infinitely preferable.
> 
>  - R.


-- 
Stephen Hemminger <shemminger at linux-foundation.org>



More information about the ewg mailing list