linux-kernel - Re: [REGRESSION PATCH] NFS: let NFS_V4 and NFSD

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Message-ID: <20100830123305.GB14459@pengutronix.de>
Date:	Mon, 30 Aug 2010 14:33:05 +0200
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Neil Brown <neilb@...e.de>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	Trond Myklebust <Trond.Myklebust@...app.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	"J. Bruce Fields" <bfields@...ldses.org>, linux-nfs@...r.kernel.org
Subject: Re: [REGRESSION PATCH] NFS: let NFS_V4 and NFSD_V4 enforce CRYPTO

On Mon, Aug 30, 2010 at 02:10:22PM +0200, Uwe Kleine-König wrote:
> On Mon, Aug 30, 2010 at 08:36:59PM +1000, Neil Brown wrote:
> > On Mon, 30 Aug 2010 10:26:18 +0200
> > Uwe Kleine-König <u.kleine-koenig@...gutronix.de> wrote:
> > 
> > > [extending Cc: to contain Neil and linux-nfs]
> > > 
> > > On Fri, Aug 27, 2010 at 08:11:39AM +0200, Uwe Kleine-König wrote:
> > > > On Wed, Aug 25, 2010 at 11:05:19AM +0200, Uwe Kleine-König wrote:
> > 
> > I would tend to wait more than 2 days between pings..
> 
> 	ukl@...opus:~/gsrc/linux-2.6$ git rev-parse linus/master
> 	2bfc96a127bc1cc94d26bfaa40159966064f9c8c
> 	ukl@...opus:~/gsrc/linux-2.6$ git grep -E CRYPTO= linus/master arch/arm/configs/ | wc -l
> 	6
> 	ukl@...opus:~/gsrc/linux-2.6$ git grep -E NFSD?_V4 linus/master arch/arm/configs/ | wc -l
> 	37
This is wrong, because the last line counts configs having both NFSD_V4
and NFS_V4 twice.  There are "only" 31 that have at least one of NFSD_V4
and NFS_V4.  But only one of these (at572d940hfek_defconfig) has CRYPTO
set, too.
 
> So I think that at least 31 arm-defconfigs don't build because of this
> issue.  And as this kind of error greatly hurts automatic bisection I
> thought this to be critical enough to be a bit impatient.
To extend the test to non-ARM land:

ukl@...opus:~/gsrc/linux-2.6$ git ls-tree -r --name-only linus/master | grep defconfig | xargs grep -l -E 'CONFIG_NFSD?_V4=' | xargs grep -L CONFIG_CRYPTO= | wc -l
108

(Thinking about it again probably not all of them are broken, because
there might be other symbols selecting CRYPTO.)

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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