[dpdk-stable] please help backporting some patches to LTS release 18.11.7

[Itsuro ODA]

Hi, Kevin,

> 3d01b759d  Itsuro Oda       net/vhost: delay driver setup
> 3e0030754  Maxime Coquelin  net/vhost: fix setup error path
> # Dep on 3d01b759d

I posted revised version of above two patches.
The error is because fixes about disable_flags which
does not exist at the time of 18.11 was included.

> 366a0500f  Maxime Coquelin  net/vhost: prevent multiple setups on reconfiguration
> # Dep on 3d01b759d

This can be applied after above two patches applied.

Thanks.
-- 
Itsuro ODA <oda at valinux.co.jp>