When set DCB in testpmd by clang, 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 random address.

Fixes: b57b66a97ebf ("app/testpmd: support mbuf dynamic flag")
Cc: sta...@dpdk.org

Signed-off-by: Ting Xu <ting...@intel.com>
---
 app/test-pmd/testpmd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 99bacddbf..1276476ca 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -3408,6 +3408,7 @@ get_eth_dcb_conf(portid_t pid, struct rte_eth_conf 
*eth_conf,
        int32_t rc;
        struct rte_eth_rss_conf rss_conf;
 
+       memset(&rss_conf, 0, sizeof(struct rte_eth_rss_conf));
        /*
         * Builds up the correct configuration for dcb+vt based on the vlan 
tags array
         * given above, and the number of traffic classes available for use.
-- 
2.17.1

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