All users of QemuIoInteractive provides -f argument, so it's incorrect
to use qemu_io_args, which contains -f too. Let's use
qemu_io_args_no_fmt, which also makes possible to use --image-opts with
QemuIoInteractive in the following patch.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---
 tests/qemu-iotests/iotests.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index f20d90f969..a8f71df4eb 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -211,7 +211,7 @@ def get_virtio_scsi_device():
 
 class QemuIoInteractive:
     def __init__(self, *args):
-        self.args = qemu_io_args + list(args)
+        self.args = qemu_io_args_no_fmt + list(args)
         self._p = subprocess.Popen(self.args, stdin=subprocess.PIPE,
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.STDOUT,
-- 
2.18.0

On Sat, Jun 20, 2020 at 05:36:48PM +0300, Vladimir Sementsov-Ogievskiy wrote:
> All users of QemuIoInteractive provides -f argument, so it's incorrect
> to use qemu_io_args, which contains -f too. Let's use
> qemu_io_args_no_fmt, which also makes possible to use --image-opts with
> QemuIoInteractive in the following patch.
> 
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
> ---
>  tests/qemu-iotests/iotests.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>