I40e do not allow to get rss hena only, need to get rss
key meanwhile.

Fixes: 16321de09396 ("ethdev: allow to get RSS hash functions and key")
Cc: sta...@dpdk.org

Signed-off-by: Qiming Yang <qiming.y...@intel.com>
---
 app/test-pmd/config.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index b9e5dd9..482c4f5 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1764,8 +1764,7 @@ port_rss_hash_conf_show(portid_t port_id, int 
show_rss_key)
                return;
        }
 
-       /* Get RSS hash key if asked to display it */
-       rss_conf.rss_key = (show_rss_key) ? rss_key : NULL;
+       rss_conf.rss_key = rss_key;
        rss_conf.rss_key_len = hash_key_size;
        diag = rte_eth_dev_rss_hash_conf_get(port_id, &rss_conf);
        if (diag != 0) {
@@ -1793,6 +1792,8 @@ port_rss_hash_conf_show(portid_t port_id, int 
show_rss_key)
                        printf("%s ", rss_type_table[i].str);
        }
        printf("\n");
+
+       /* Get RSS hash key if asked to display it */
        if (!show_rss_key)
                return;
        printf("RSS key:\n");
-- 
2.9.5

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