linux-kernel - Re: 3.9-rc1 regression in arm dtb build

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Date:	Sun, 10 Mar 2013 22:05:46 -0700
From:	Olof Johansson <olof@...om.net>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Pavel Machek <pavel@....cz>, grant.likely@...retlab.ca,
	kernel list <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux@....linux.org.uk,
	arnd@...db.de, linux-arm-kernel@...ts.infradead.org,
	rob.herring@...xeda.com, torvalds@...ux-foundation.org
Subject: Re: 3.9-rc1 regression in arm dtb build

On Thu, Mar 07, 2013 at 01:50:54PM -0700, Stephen Warren wrote:
> On 03/07/2013 07:45 AM, Pavel Machek wrote:
> > Hi!
> >>> commit 499cd8298628eeabf0eb5eb6525d4faa0eec80d8
> >>> Author: Grant Likely <grant.likely@...retlab.ca>
> >>> Date:   Tue Nov 27 16:29:11 2012 -0700
> > ...
> >>> 1) it is inconsistent with 3.8, making switching between 3.9-rc1 and
> >>> 3.8 tricky
> >>
> >> It's pretty easy to locate the DTB by automatically looking in
> >> arch/*/boot/dts first, then if the file doesn't exist there, looking in
> >> arch/*/boot instead as a legacy fallback.
> > 
> > Unfortunately, that does not work. See 2) below. Stale files even
> > survive "make clean".
> 
> Oh right. I guess it works fine when having built 3.7 and then building
> 3.8, since you'd look in the new location first and only fall back to
> the old location if missing. However, if you then switch back to 3.7 to
> test something, I guess that doesn't work so well.
> 
> I tend to always build the dtbs target, so I wasn't affected by this.
> And, often run "git clean -f -d -x" too.
> 
> Grant, what's your call on this issue; should I/you look into ways to
> clean the files better, or do you want to revert this?

I'm not Grant, but I think we're better off cleaning up the current situation
instead of reverting. Otherwise 3.8 will be the oddball weird release; it's
better to get people moved over to the new location.


-Olof
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