linux-kernel - Re: linux-next: build failure after merge of the akpm tree

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Message-Id: <20120913183106.a154a63a75cef8efa03317ad@canb.auug.org.au>
Date:	Thu, 13 Sep 2012 18:31:06 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Fengguang Wu <fengguang.wu@...el.com>,
	Amit Daniel Kachhap <amit.kachhap@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>
Subject: Re: linux-next: build failure after merge of the akpm tree

Hi Andrew,

On Thu, 13 Sep 2012 00:56:57 -0700 Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Thu, 13 Sep 2012 17:44:41 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> 
> > After merging the akpm tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> > 
> > drivers/thermal/cpu_cooling.c: In function 'get_idr':
> > drivers/thermal/cpu_cooling.c:89:14: error: 'MAX_ID_MASK' undeclared (first use in this function)
> > 
> > Caused by commit "idr: rename MAX_LEVEL to MAX_IDR_LEVEL" from the akpm
> > tree interacting with commit 78edc7cdcf5e ("thermal: add generic cpufreq
> > cooling implementation") from the thermal tree.
> > 
> > I have applied the following merge fix patch and can carry it as
> > necessary.
> > 
> > ...
> >
> > --- a/drivers/thermal/cpu_cooling.c
> > +++ b/drivers/thermal/cpu_cooling.c
> > @@ -9,7 +9,7 @@
> >   *  it under the terms of the GNU General Public License as published by
> >   *  the Free Software Foundation; version 2 of the License.
> >   *
> > - *  This program is distributed in the hope that it will be useful, but
> > + *  This program is distributed in the hope that it will be useful, butX_ID_MASK
> >   *  WITHOUT ANY WARRANTY; without even the implied warranty of
> >   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> >   *  General Public License for more details.
> > @@ -86,7 +86,7 @@ again:
> >  	else if (unlikely(err))
> >  		return err;
> >  
> > -	*id = *id & MAX_ID_MASK;
> > +	*id = *id & MAX_IDR_MASK;
> >  	return 0;
> >  }
> 
> Confused. 
> http://ozlabs.org/~akpm/mmotm/broken-out/idr-rename-max_level-to-max_idr_level-fix-3.patch
> already does this.  How did that change get into the wrong place?

So, ignore the first hunk above, that was my typo.  

Here is the chunk of the series file I have:

idr-rename-max_level-to-max_idr_level.patch
idr-rename-max_level-to-max_idr_level-fix.patch
idr-rename-max_level-to-max_idr_level-fix-fix-2.patch
#NEXT_PATCHES_END
#
linux-next.patch
i-need-old-gcc.patch
idr-rename-max_level-to-max_idr_level-fix-3.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
#
#NEXT_PATCHES_START linux-next-urgent

So idr-rename-max_level-to-max_idr_level-fix-3.patch is excluded form
linux-next :-( I guess I need to just move that further down in the
series file?  Though when you send the preceding three patches to Linus,
that fix-3 patch will be needed when I merge the thermal tree.
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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