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Date:   Thu, 21 Jan 2021 17:20:01 +1100
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Dan Williams <dan.j.williams@intel.com>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Randy Dunlap <rdunlap@infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
Subject: Re: linux-next: build failure after merge of the akpm-current tree
Message-ID: <20210121172001.3cb8b091@canb.auug.org.au>
In-Reply-To: <CAPcyv4jrrNthnSkj7RVjOMSDGJAoiw7KjniKaid5Jr-86B4Auw@mail.gmail.com>
References: <20210120162518.4fdc8f00@canb.auug.org.au>
        <CAPcyv4jrrNthnSkj7RVjOMSDGJAoiw7KjniKaid5Jr-86B4Auw@mail.gmail.com>
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Hi Dan,

On Tue, 19 Jan 2021 21:48:52 -0800 Dan Williams <dan.j.williams@intel.com> =
wrote:
>
> On Tue, Jan 19, 2021 at 9:25 PM Stephen Rothwell <sfr@canb.auug.org.au> w=
rote:
> >
> > Hi all,
> >
> > After merging the akpm-current tree, today's linux-next build (powerpc
> > ppc64_defconfig) failed like this:
> >
> > mm/memory_hotplug.c: In function 'move_pfn_range_to_zone':
> > mm/memory_hotplug.c:772:24: error: 'ZONE_DEVICE' undeclared (first use =
in this function)
> >   772 |  if (zone_idx(zone) =3D=3D ZONE_DEVICE) {
> >       |                        ^~~~~~~~~~~
> >
> > Caused by commit
> >
> >   e821cf25cfee ("mm: teach pfn_to_online_page() about ZONE_DEVICE secti=
on collisions")
> >
> > I applied the patch from Randy Dunlap for today.
> >
> > That, however, lead to this warning:
> >
> > mm/memory_hotplug.c:730:13: warning: 'section_taint_zone_device' define=
d but not used [-Wunused-function]
> >   730 | static void section_taint_zone_device(unsigned long pfn)
> >       |             ^~~~~~~~~~~~~~~~~~~~~~~~~
> > =20
>=20
> I sent this one as an alternate:
>=20
> http://lore.kernel.org/r/161111619868.2787408.1710192276369197040.stgit@d=
willia2-desk3.amr.corp.intel.com

I have used that today instead of Randy's patch, thanks.

--=20
Cheers,
Stephen Rothwell

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