linux-kernel - Re: [PATCH v3.1] kbuild: implement several W= levels

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Message-ID: <20110427082226.GB5726@merkur.ravnborg.org>
Date:	Wed, 27 Apr 2011 10:22:26 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Borislav Petkov <bp@...en8.de>, Michal Marek <mmarek@...e.cz>,
	linux-kbuild <linux-kbuild@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...hat.com>
Subject: Re: [PATCH v3.1] kbuild: implement several W= levels

On Tue, Apr 26, 2011 at 10:43:07PM +0200, Borislav Petkov wrote:
> On Tue, Apr 26, 2011 at 09:52:35PM +0200, Michal Marek wrote:
> > On 22.4.2011 19:50, Borislav Petkov wrote:
> > > From: Sam Ravnborg <sam@...nborg.org>
> > > 
> > > Building a kernel with "make W=1" produce far too much noise
> > > to be usefull.
> > > 
> > > Divide the warning options in three groups:
> > > 
> > >     W=1 - warnings that may be relevant and does not occur too often
> > >     W=2 - warnings that occur quite often but may still be relevant
> > >     W=3 - the more obscure warnings, can most likely be ignored
> > > 
> > > When building init/ on my box the levels produces:
> > > 
> > > W=1 - 46 warnings
> > > W=2 - 863 warnings
> > > W=3 - 6496 warnings
> > 
> > I guess these numbers are not valid after your changes? Not that the
> > exact numbers are important, but maybe the distribution change?
> 
> I think so too that those numbers don't mean a lot.

The numbers _only_ tell you that the amoun of warnings on W=1
is down to a manageable number and they increase be the higher
level.

Will you cook up a more correct changelog and resubmit?

	Sam
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