Struct rss_conf.rss_key_len is not initialised forcing the user to
verify the rss_conf.rss_key pointer to know if the key is present
or not. rss_conf.rss_key_len should have a valid length according
to the size of the rss_key pointed.
Fixes: 560e02ee5237 ("app/testpmd: configure RSS without restart")
Cc: stable@dpdk.org
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
f3fb0e4625