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From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>,
	Arnd Bergmann <arnd@arndb.de>
Subject: Re: [PATCH] linkstation / kurobox support
Date: Sat, 2 Dec 2006 13:32:23 +0100 (CET)	[thread overview]
Message-ID: <Pine.LNX.4.60.0612021325090.4841@poirot.grange> (raw)
In-Reply-To: <1165058392.22108.34.camel@localhost.localdomain>

On Sat, 2 Dec 2006, Benjamin Herrenschmidt wrote:

> On Sat, 2006-12-02 at 11:56 +0100, Arnd Bergmann wrote:
> 
> > > +#ifdef CONFIG_BLK_DEV_INITRD
> > > +       if (initrd_start)
> > > +               ROOT_DEV = Root_RAM0;
> > > +       else
> > > +#endif
> > > +#ifdef CONFIG_ROOT_NFS
> > > +               ROOT_DEV = Root_NFS;
> > > +#else
> > > +               ROOT_DEV = Root_HDA1;
> > > +#endif
> > > +
> > 
> > This looks wrong. Didn't the same code come up recently in a review for
> > another platform? What was the conclusion?
> 
> It's a copy paste that we inhertit from the big bang...  Should probably
> go...
> 
> Note that PowerMac does have a proper root autodetect feature though
> it's not fascionable to have such a thing nowadays and the only reason
> it's still in is because it mostly stays under the radar :-)
> 
> So basically... yeah, the #ifdef sucks, but I don't mind that much...

Thanks for the reviews. I don't like this place either. Never needed 
anything like that on ARM, don't think many other platforms have it 
either, but looking through other powerpc platforms I saw a few similar 
code fragments, so, kept it for now. In fact, it is there just to try to 
boot in case no "root=..." command line option is passed at all, right? I 
wouldn't mind just a panic then. Besides, this is supposed to be booted 
from u-boot, so, specifying a command line is not a problem. So, yes, will 
remove that. Is this an acceptable solution? But - could we, please, just 
get it into some tree in this form for now (if there are no other major 
objections), and I promise I'll send an incremental patch soon. I just 
don't want to bomb the list with this "minor" patch - it's already the 5th 
version...

Thanks
Guennadi
---
Guennadi Liakhovetski

  parent reply	other threads:[~2006-12-02 12:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-01 21:53 [PATCH] linkstation / kurobox support Guennadi Liakhovetski
2006-12-02 10:56 ` Arnd Bergmann
2006-12-02 11:19   ` Benjamin Herrenschmidt
2006-12-02 11:32     ` Benjamin Herrenschmidt
2006-12-02 12:32     ` Guennadi Liakhovetski [this message]
2007-01-28 22:31     ` Guennadi Liakhovetski
2007-02-08 21:47       ` Kumar Gala

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