app/testpmd: fix missing init in RSS hash show command

The "show port X rss-hash" command sometimes displays garbage instead of the
expected RSS hash key because the maximum key length is undefined. When the
requested key is too large to fit in the buffer,
rte_eth_dev_rss_hash_conf_get() does not update it.

Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Adrien Mazarguil 2015-10-30 19:55:14 +01:00 committed by Thomas Monjalon
parent 8205e241b2
commit f2f954a838

View File

@ -879,7 +879,7 @@ void
port_rss_hash_conf_show(portid_t port_id, char rss_info[], int show_rss_key)
{
struct rte_eth_rss_conf rss_conf;
uint8_t rss_key[10 * 4];
uint8_t rss_key[10 * 4] = "";
uint64_t rss_hf;
uint8_t i;
int diag;
@ -895,6 +895,7 @@ port_rss_hash_conf_show(portid_t port_id, char rss_info[], int show_rss_key)
/* Get RSS hash key if asked to display it */
rss_conf.rss_key = (show_rss_key) ? rss_key : NULL;
rss_conf.rss_key_len = sizeof(rss_key);
diag = rte_eth_dev_rss_hash_conf_get(port_id, &rss_conf);
if (diag != 0) {
switch (diag) {