[dpdk-dev] [PATCH] bus/vdev: add warning for duplicated vdev name
Yahui Cao
yahui.cao at intel.com
Fri Dec 21 07:57:57 CET 2018
On Wed, Dec 19, 2018 at 03:26:36AM +0100, Thomas Monjalon wrote:
> 29/11/2018 08:16, Yahui Cao:
> > If duplicated vdev name is detected, print out a warning message.
> >
> > Signed-off-by: Yahui Cao <yahui.cao at intel.com>
> > ---
> > drivers/bus/vdev/vdev.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
> > index 9c66bdc78..ff2db7d3f 100644
> > --- a/drivers/bus/vdev/vdev.c
> > +++ b/drivers/bus/vdev/vdev.c
> > @@ -462,6 +462,8 @@ vdev_scan(void)
> > if (find_vdev(devargs->name)) {
> > rte_spinlock_recursive_unlock(&vdev_device_list_lock);
> > free(dev);
> > + VDEV_LOG(WARNING, "duplicated vdev name %s detected!",
> > + devargs->name);
> > continue;
> > }
>
> I'm surprised there is nothing to prevent from creating 2 vdevs
> with the same name. It should be considered as an error
> and reject the vdev creation.
>
>
Actually it does skip the creation of vdev with the same name. Is it
enough to return error from vdev_scan(), or even return error from
rte_bus_scan()? Please give some advice.
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