linux-ext4 - Re: [PATCH 03/10 v3] ext4: add physical block and status member into extent status tree

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Message-ID: <20130203081943.GF4937@mwanda>
Date:	Sun, 3 Feb 2013 11:19:43 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"Theodore Ts'o" <tytso@....edu>, linux-ext4@...r.kernel.org,
	Zheng Liu <wenqing.lz@...bao.com>,
	Christopher Li <sparse@...isli.org>,
	linux-sparse@...r.kernel.org
Subject: Re: [PATCH 03/10 v3] ext4: add physical block and status member into
 extent status tree

On Sun, Feb 03, 2013 at 01:21:13PM +0800, Zheng Liu wrote:
> On Sat, Feb 02, 2013 at 10:03:43PM -0500, Theodore Ts'o wrote:
> > On Wed, Jan 30, 2013 at 10:43:33AM +0800, Zheng Liu wrote:
> > > 
> > > Clang is first coming in my mind.  I know that some one try to use it
> > > to build a linux kernel and get a lot of problems that are about gcc
> > > extension.  But for us it seems that things are not too bad. ;)
> > 
> > Clang accepts bitfields with "unsigned long long", but I've discovered
> > something which does _not_ support unsigned long long --- the "sparse"
> > tool.  :-(
> 
> Yes, this problem has been reported by Fengguang.  So I am plan to use
> another method to define extent_status structure as last time we
> discuessed.  What do you think?
> 

I don't get this warning on my version of Sparse.

Sparse used to assume -m32 all the time but now that's been changed.
Are you using the most recent version of Sparse?  Try passing -m64.

regards,
dan carpenter

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