linux-kernel - Re: [PATCH] CodingStyle: Printing numbers in parentheses is fine

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Message-Id: <20070929155101.43079713.randy.dunlap@oracle.com>
Date:	Sat, 29 Sep 2007 15:51:01 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	David Brownell <david-b@...bell.net>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	khali@...ux-fr.org, akpm@...ux-foundation.org
Subject: Re: [PATCH] CodingStyle: Printing numbers in parentheses is fine

On Sat, 29 Sep 2007 15:30:15 -0700 David Brownell wrote:

> > > > Let's kill it, please.  (i.e., ACK)
> > > 
> > > But ... why?  What value could needless parens provide?
> >
> > Who says that needless parens could provide value?
> 
> Jean, which is why he submitted the patch.
> You, implicitly, by acking a patch saying those parens are bad.
> But not me ... I don't think this patch is merge-worthy.

Thanks for clearing that up.  Yes, you did have me confused.

Sure, if something is needless, it doesn't provide value.
So we disagree that some parens are needless.  OK.

> > > "Yet Another Subtle And Hard To Fix Source Of Bloat" is
> > > not a plus.
> >
> > ISTM that we agree.
> 
> Evidently not, since removing it would promote such bloat.
> Explicitly removing disapproval is a form of approval...
> 
> 
> > > I'd kind of think a change like this should have some
> > > positive motivation.
> >
> > "Me, I agree that numbers in parens don't usually make sense for
> > kernel messages."
> >
> > It's too trivial to be included in CodingStyle.
> 
> So the reason to remove that guideline, and thereby encourage
> proliferation of needless parens, is ... that some OTHER way
> to get rid of them is working?

Andrew listed some cases where parens make sense.  He didn't say
(and I don't say) [oops, parens] that they always make sense,
but the statement in CodingStyle is too strict.  Sometimes they
make sense.

> I would agree that line could be improved to say that messages
> should not be needlessly large.  Excess parens are one example;
> wordiness is another (including printing 8 bit fields as 0x%08x),
> and I'm sure there are more.

---
~Randy
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