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From: John Snow <jsnow@redhat.com>
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Subject: Re: [Qemu-devel] [RFC v4 00/21] blockjobs: add explicit job
 management
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On 02/25/2018 06:25 PM, no-reply@patchew.org wrote:
>   CC      scsi/qemu-pr-helper.o
> /var/tmp/patchew-tester-tmp-9ukz0kme/src/blockjob.c: In function =E2=80=
=98block_job_txn_apply.isra.8=E2=80=99:
> /var/tmp/patchew-tester-tmp-9ukz0kme/src/blockjob.c:511:5: error: =E2=80=
=98rc=E2=80=99 may be used uninitialized in this function [-Werror=3Dmayb=
e-uninitialized]
>      return rc;
>      ^
>   CC      qemu-bridge-helper.o
>   CC      blockdev.o
>   CC      blockdev-nbd.o
>   CC      bootdevice.o
>   CC      iothread.o
>   CC      qdev-monitor.o
>   CC      device-hotplug.o
>   CC      os-posix.o
>   CC      bt-host.o
>   CC      bt-vhci.o
>   CC      dma-helpers.o
>   CC      vl.o
>   CC      tpm.o
>   CC      device_tree.o
>   CC      qmp-marshal.o
>   CC      qmp.o
>   CC      hmp.o
>   CC      cpus-common.o
>   CC      audio/audio.o
> cc1: all warnings being treated as errors
> make: *** [blockjob.o] Error 1
> make: *** Waiting for unfinished jobs....
> =3D=3D=3D OUTPUT END =3D=3D=3D
>=20
> Test command exited with code: 2
>=20
>=20
> ---
> Email generated automatically by Patchew [http://patchew.org/].
> Please send your feedback to patchew-devel@freelists.org

No idea why this would only trigger on ppc/be, but I'll look into it.