[dpdk-stable] [PATCH v2] app/testpmd: fix DCB set failure

[Ting Xu <ting.xu@intel.com>]

When set DCB in testpmd, there is a segmentation fault. It is
because the local variable rss_conf in get_eth_dcb_conf()
is not cleared, so that the pointer member variable rss_key has
a random address, which leads to an error in the following
processing. This patch initialized the local variable rss_conf
to avoid this situation.

Fixes: ac7c491c3fec ("app/testpmd: fix DCB config")
Cc: stable@dpdk.org

Signed-off-by: Ting Xu <ting.xu@intel.com>

---
v1->v2: modify commit log, move memset to else leg
---
 app/test-pmd/testpmd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index a2d0be56b..9ad34421c 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -3448,6 +3448,8 @@ get_eth_dcb_conf(portid_t pid, struct rte_eth_conf *eth_conf,
 		struct rte_eth_dcb_tx_conf *tx_conf =
 				&eth_conf->tx_adv_conf.dcb_tx_conf;
 
+		memset(&rss_conf, 0, sizeof(struct rte_eth_rss_conf));
+
 		rc = rte_eth_dev_rss_hash_conf_get(pid, &rss_conf);
 		if (rc != 0)
 			return rc;
-- 
2.17.1