[PATCH] examples/symmetric_mp: log/ignore promiscuous fail

[mamcgove@microsoft.com]

From: Matthew G McGovern <mamcgove@microsoft.com>

The example apps have a few different failure modes when enabling promiscuous mode:

- testpmd will warn about the failure and continue.

- l3fwd has a flag '-P' to explicitly require promiscuous mode.

- symmetric_mp will exit with an error code

This patch changes symmetric_mp to warn and continue.

Signed-off-by: Matthew G McGovern <mamcgove@microsoft.com>
---
 examples/multi_process/symmetric_mp/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/examples/multi_process/symmetric_mp/main.c b/examples/multi_process/symmetric_mp/main.c
index f7d8439cd4..974fed2cd5 100644
--- a/examples/multi_process/symmetric_mp/main.c
+++ b/examples/multi_process/symmetric_mp/main.c
@@ -275,7 +275,8 @@ smp_port_init(uint16_t port, struct rte_mempool *mbuf_pool,
 
 	retval = rte_eth_promiscuous_enable(port);
 	if (retval != 0)
-		return retval;
+		printf("Error during enabling promiscuous mode for port %u: %s - ignore\n",
+			port, rte_strerror(-retval));
 
 	retval  = rte_eth_dev_start(port);
 	if (retval < 0)
-- 
2.34.1