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

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Message-ID: <20100916073433.GA21228@elte.hu>
Date:	Thu, 16 Sep 2010 09:34:33 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Yinghai Lu <yinghai@...nel.org>
Subject: Re: linux-next: build failure after merge of the final tree (tip
 tree related)


* Russell King - ARM Linux <linux@....linux.org.uk> wrote:

> On Thu, Sep 16, 2010 at 08:39:22AM +0200, Ingo Molnar wrote:
> > 
> > * Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> > 
> > > Hi all,
> > > 
> > > On Tue, 14 Sep 2010 00:29:32 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> > > >
> > > > After merging the final tree, today's linux-next build (arm
> > > > assabet_defconfig and serveral other arm configs) failed like this:
> > > > 
> > > > arch/arm/mm/init.c: In function 'arm_memory_present':
> > > > arch/arm/mm/init.c:260: warning: ISO C90 forbids mixed declarations and code
> > > > arch/arm/mm/init.c:338: error: invalid storage class for function 'free_area'
> > > > arch/arm/mm/init.c:357: error: invalid storage class for function 'free_memmap'
> > > > arch/arm/mm/init.c:386: error: invalid storage class for function 'free_unused_memmap'
> > > > arch/arm/mm/init.c:601: error: invalid storage class for function 'keepinitrd_setup'
> > > > arch/arm/mm/init.c:606: error: initializer element is not constant
> > > > arch/arm/mm/init.c:606: error: (near initialization for '__setup_keepinitrd_setup.setup_func')
> > > > arch/arm/mm/init.c:606: error: expected declaration or statement at end of input
> > > > arch/arm/mm/init.c:252: warning: unused variable 'i'
> > > > 
> > > > Caused by commit 719c1514f2fef5f01fcfa2bba81b7bb079c7c6a1 ("memblock/arm:
> > > > Use new accessors") which forgot a closing brace on a new
> > > > for_each_memblock() in arm_memory_present().
> > > 
> > > So this commit is back in tip and the error is back in the builds ...
> > 
> > The ARM defconfig build doesnt fail here:
> > 
> >   WARNING: modpost: Found 5 section mismatch(es).
> >   To see full details build your kernel with:
> >   'make CONFIG_DEBUG_SECTION_MISMATCH=y'
> 
> It probably passes because that configuration doesn't result in the
> failing code being built (maybe the failing code is only used for
> sparsemem ?)

Yeah. If sparsemem is important then it would be helpful if you could 
enable it in the ARM defconfig if possible - that's what most people 
build.

Thanks,

	Ingo
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