linux-kernel - Re: linux-next: build warning after merge of the powerpc tree

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Date:	Wed, 21 Oct 2015 07:45:07 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Michael Ellerman <mpe@...erman.id.au>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Denis Kirjanov <kda@...ux-powerpc.org>
Subject: Re: linux-next: build warning after merge of the powerpc tree

Hi Michael,

On Tue, 20 Oct 2015 21:06:51 +1100 Michael Ellerman <mpe@...erman.id.au> wrote:
>
> On Tue, 2015-10-20 at 16:21 +1100, Stephen Rothwell wrote:
> 
> > After merging the powerpc tree, today's linux-next build (powerpc
> > allyesconfig) produced this warning:
> > 
> > WARNING: vmlinux.o(.text+0x9367c): Section mismatch in reference from the function .msi_bitmap_alloc() to the function .init.text:.memblock_virt_alloc_try_nid()
> > The function .msi_bitmap_alloc() references
> > the function __init .memblock_virt_alloc_try_nid().
> > This is often because .msi_bitmap_alloc lacks a __init
> > annotation or the annotation of .memblock_virt_alloc_try_nid is wrong.
> > 
> > Introduced (probably) by commit
> > 
> >   cb2d3883c603 ("powerpc/msi: Free the bitmap if it was slab allocated")  
> 
> Yeah that's correct, though it should be safe in practice.
> 
> I'm not sure why you only saw that now though, the patch has been in next since
> the 13th of October.

I don't always notice new warnings immediately among all the others :-(

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
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