From: Viacheslav Ovsiienko
> If RSS action contains non zero hash key length and NULL key buffer pointer
> the
> default hash key should be used.
> The check for the NULL pointer this was missing in the mlx4 PMD causing
> crash, for example, in testpmd with command:
>
> flow validate 0 ingress group 0
> pattern eth / ipv4 / end
> actions rss queues 0 end key_len 40 / end
>
> Fixes: ac8d22de2394 ("ethdev: flatten RSS configuration in flow API")
> Cc: sta...@dpdk.org
>
> Signed-off-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
Acked-by: Matan Azrad <ma...@nvidia.com>
