Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Mon, 8 Jul 2019 13:03:51 +1000
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Doug Ledford <dledford@redhat.com>,
        Jason Gunthorpe <jgg@mellanox.com>
Cc:     Linux Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Bernard Metzler <bmt@zurich.ibm.com>
Subject: linux-next: build failure after merge of the rdma tree
Message-ID: <20190708130351.2141a39b@canb.auug.org.au>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha256;
 boundary="Sig_/kA.hB=1qdLs1zSTZSdnbIXv"; protocol="application/pgp-signature"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

--Sig_/kA.hB=1qdLs1zSTZSdnbIXv
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: quoted-printable

Hi all,

After merging the rdma tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/asm-generic/percpu.h:7,
                 from arch/x86/include/asm/percpu.h:544,
                 from arch/x86/include/asm/preempt.h:6,
                 from include/linux/preempt.h:78,
                 from include/linux/spinlock.h:51,
                 from include/linux/seqlock.h:36,
                 from include/linux/time.h:6,
                 from include/linux/ktime.h:24,
                 from include/linux/timer.h:6,
                 from include/linux/netdevice.h:24,
                 from drivers/infiniband/sw/siw/siw_main.c:8:
include/linux/percpu-defs.h:92:33: warning: '__pcpu_unique_use_cnt' initial=
ized and declared 'extern'
  extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name;  \
                                 ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:115:2: note: in expansion of macro 'DEFINE_PER_=
CPU_SECTION'
  DEFINE_PER_CPU_SECTION(type, name, "")
  ^~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/sw/siw/siw_main.c:129:8: note: in expansion of macro 'DE=
FINE_PER_CPU'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
        ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:93:26: error: redefinition of '__pcpu_unique_us=
e_cnt'
  __PCPU_DUMMY_ATTRS char __pcpu_unique_##name;   \
                          ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:115:2: note: in expansion of macro 'DEFINE_PER_=
CPU_SECTION'
  DEFINE_PER_CPU_SECTION(type, name, "")
  ^~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/sw/siw/siw_main.c:129:8: note: in expansion of macro 'DE=
FINE_PER_CPU'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
        ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:92:33: note: previous definition of '__pcpu_uni=
que_use_cnt' was here
  extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name;  \
                                 ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:115:2: note: in expansion of macro 'DEFINE_PER_=
CPU_SECTION'
  DEFINE_PER_CPU_SECTION(type, name, "")
  ^~~~~~~~~~~~~~~~~~~~~~
drivers/infiniband/sw/siw/siw_main.c:129:8: note: in expansion of macro 'DE=
FINE_PER_CPU'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
        ^~~~~~~~~~~~~~
drivers/infiniband/sw/siw/siw_main.c:129:33: warning: 'use_cnt' initialized=
 and declared 'extern'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
                                 ^~~~~~~
include/linux/percpu-defs.h:94:44: note: in definition of macro 'DEFINE_PER=
_CPU_SECTION'
  extern __PCPU_ATTRS(sec) __typeof__(type) name;   \
                                            ^~~~
drivers/infiniband/sw/siw/siw_main.c:129:8: note: in expansion of macro 'DE=
FINE_PER_CPU'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
        ^~~~~~~~~~~~~~
drivers/infiniband/sw/siw/siw_main.c:129:33: error: redefinition of 'use_cn=
t'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
                                 ^~~~~~~
include/linux/percpu-defs.h:95:44: note: in definition of macro 'DEFINE_PER=
_CPU_SECTION'
  __PCPU_ATTRS(sec) __weak __typeof__(type) name
                                            ^~~~
drivers/infiniband/sw/siw/siw_main.c:129:8: note: in expansion of macro 'DE=
FINE_PER_CPU'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
        ^~~~~~~~~~~~~~
drivers/infiniband/sw/siw/siw_main.c:129:33: note: previous definition of '=
use_cnt' was here
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
                                 ^~~~~~~
include/linux/percpu-defs.h:94:44: note: in definition of macro 'DEFINE_PER=
_CPU_SECTION'
  extern __PCPU_ATTRS(sec) __typeof__(type) name;   \
                                            ^~~~
drivers/infiniband/sw/siw/siw_main.c:129:8: note: in expansion of macro 'DE=
FINE_PER_CPU'
 static DEFINE_PER_CPU(atomic_t, use_cnt =3D ATOMIC_INIT(0));
        ^~~~~~~~~~~~~~

Caused by commit

  bdcf26bf9b3a ("rdma/siw: network and RDMA core interface")

I have used the rdma tree from 20190628 again today.

--=20
Cheers,
Stephen Rothwell

--Sig_/kA.hB=1qdLs1zSTZSdnbIXv
Content-Type: application/pgp-signature
Content-Description: OpenPGP digital signature

-----BEGIN PGP SIGNATURE-----

iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl0ispcACgkQAVBC80lX
0Gw0cAgAkKRy9OxJPfFu0rHajKiGMPyuq+s1F8tFQU/e+EGZF0V4uee9OMtdvo3S
EvhOAjnSiK4KjhaUomqXAozjbKfA+ltfM/NRfdM7UpXToG9KXTa3Q+05xlcEuVeK
zKSjh6kouMuv4p+W+IBls6YaSnWTpdFLN9v5+FjpcCFGNZa8gLD7GHmEckTc3a0D
rFUm+ht43wWWjPJN4/9g/bMTzfWwY40mT/BR7fvpBZKai5t3amfMDF6y2EqVZQv7
l7cl+NntiNqI7zkUnDsxIfUUNo7Tc6WEsH6CmD7w62KDQvE97oh0Y2f57GfAjvlq
5JdnLCY+GoYcgiuIioK4BJBo7l++Gg==
=L+GM
-----END PGP SIGNATURE-----

--Sig_/kA.hB=1qdLs1zSTZSdnbIXv--