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

Stephen Rothwell
2015-10-20T20:45:11Z

Hi Michael,

On Tue, 20 Oct 2015 21:06:51 +1100 Michael Ellerman <mpe@ellerman.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@canb.auug.org.au