From: Lorenzo Bianconi <lorenzo.bianc...@redhat.com>
Date: Wed, 21 Nov 2018 16:32:10 +0100
> Set xdp_prog pointer to NULL if bpf_prog_add fails since that routine
> reports the error code instead of NULL in case of failure and xdp_prog
> pointer value is used in the driver to verify if XDP is currently
> enabled.
> Moreover report the error code to userspace if nicvf_xdp_setup fails
>
> Fixes: 05c773f52b96 ("net: thunderx: Add basic XDP support")
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianc...@redhat.com>
Applied and queued up for -stable.
