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From: Jon Loeliger <jdl@jdl•com>
To: David Gibson <david@gibson•dropbear.id.au>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: libfdt: a fix but still broken
Date: Fri, 23 Feb 2007 09:08:16 -0600	[thread overview]
Message-ID: <E1HKc1x-0001ze-0b@jdl.com> (raw)
In-Reply-To: Your message of "Fri, 23 Feb 2007 14:47:35 +1100." <20070223034734.GA18698@localhost.localdomain>

So, like, the other day David Gibson mumbled:
> On Thu, Feb 22, 2007 at 08:27:29AM -0500, Jerry Van Baren wrote:
> > Hi Dave,
> > 
> > I have good news and bad news. ;-)  The good news is that the 
> > incompatibility between libfdt and jdl's dtc is that libfdt has the name 
> > offset and the length of the name switched.  booting_without_of.txt says 
> > the length comes first, so libfdt is in the wrong.
> 
> Ouch.  That's.. a very embarrassing bug.  Actually, I know where it
> came from: I was looking at flat_dt.h from dtc, which also gets this
> wrong (but the declaration in question is unused).  Of course, I also
> wrote flat_dt.h ...
> 
> > The bad news is that, when I fix this, nearly all of the tests fail (but 
> > they fail the same way for both tree.S and jdl's dtc).  I have not 
> > started on that layer of the onion yet.
> 
> Found it, there was a direct use of the position of the length in
> _fdt_next_tag().  Just pushed out a fix for this in the libfdt tree,
> along with some other small fixes which I found while tracking this
> one down.
> 
> Oh, incidentally, I applied your patch by eye rather than with
> patch(1), which was handy, because it appears to have been whitespace
> damaged.

And amidst all of this, is there an actual DTC change needed?
I've not detected one yet, but I'm watching... :-)

jdl

  parent reply	other threads:[~2007-02-23 15:08 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-22 13:27 libfdt: a fix but still broken Jerry Van Baren
2007-02-23  3:47 ` David Gibson
2007-02-23 12:59   ` Jerry Van Baren
2007-02-23 14:33     ` Jerry Van Baren
2007-02-23 22:24     ` David Gibson
2007-02-23 15:08   ` Jon Loeliger [this message]
2007-02-23 15:21     ` Jerry Van Baren
2007-02-23 22:47       ` David Gibson
2007-02-23 22:25     ` David Gibson

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