linux-kernel - Re: linux-next: build failure after merge of the final tree (staging tree related)

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Date:	Thu, 7 Mar 2013 06:11:19 +0800
From:	Greg KH <greg@...ah.com>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the final tree (staging
 tree related)

On Wed, Mar 06, 2013 at 03:04:44PM -0500, Konrad Rzeszutek Wilk wrote:
> On Wed, Mar 06, 2013 at 08:56:54AM -0500, Konrad Rzeszutek Wilk wrote:
> > On Wed, Mar 06, 2013 at 08:43:41AM +0800, Greg KH wrote:
> > > On Wed, Mar 06, 2013 at 11:35:08AM +1100, Stephen Rothwell wrote:
> > > > Hi all,
> > > > 
> > > > After merging the final tree, today's linux-next build (powerpc
> > > > allyesconfig) failed like this:
> > > > 
> > > > In file included from drivers/staging/zcache/debug.c:2:0:
> > > > drivers/staging/zcache/debug.h: In function 'dec_zcache_obj_count':
> > > > drivers/staging/zcache/debug.h:16:2: error: implicit declaration of function 'BUG_ON' [-Werror=implicit-function-declaration]
> > > > 
> > > > Caused by commit 95bdaee2140e ("zcache: Move debugfs code out of
> > > > zcache-main.c file").
> > > > 
> > > > I applied this patch for today:
> > > > 
> > > > From 24b03cf426007c4e94c6bed81560e436afcc136c Mon Sep 17 00:00:00 2001
> > > > From: Stephen Rothwell <sfr@...b.auug.org.au>
> > > > Date: Wed, 6 Mar 2013 11:31:06 +1100
> > > > Subject: [PATCH] disable ZCACHE_DEBUG due to build error
> > > > 
> > > > In file included from drivers/staging/zcache/debug.c:2:0:
> > > > drivers/staging/zcache/debug.h: In function 'dec_zcache_obj_count':
> > > > drivers/staging/zcache/debug.h:16:2: error: implicit declaration of function 'BUG_ON' [-Werror=implicit-function-declaration]
> > > > 
> > > > Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> > > > ---
> > > >  drivers/staging/zcache/Kconfig | 1 +
> > > >  1 file changed, 1 insertion(+)
> > > 
> > > Ick, sorry about that, I've applied your patch to my tree.
> > 
> > Wait, there is no BUG_ON on PPC? Or is the definition for it hidden in layers
> > of #include files? Would this also solve it:
> 
> I got the cross-compiler up and the patch below does indeed solve the problem.
> Greg, could you apply the patch below please?

What patch?  I don't see a proper Subject:, Signed-off-by: or anything
else I can use.

> > diff --git a/drivers/staging/zcache/debug.h b/drivers/staging/zcache/debug.h
> > index eef67db..494cea02 100644
> > --- a/drivers/staging/zcache/debug.h
> > +++ b/drivers/staging/zcache/debug.h
> > @@ -1,5 +1,7 @@
> >  #ifdef CONFIG_ZCACHE_DEBUG
> >  
> > +#include <asm/bug.h>

Never include an asm .h file, you know better than that :)

greg k-h
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