If "dev_info.max_mtu" isn't set by driver, the rte_ethdev will set
default value "UINT16_MAX", that will cause the overhead value overflow.
Add more strict condition to ensure the overhead valid.
Fixes: bed05536c8f8 ("app/testpmd: fix max Rx packet length for VLAN packets")
Signed-off-by: Steve Yang <stevex.y...@intel.com>
---
app/test-pmd/testpmd.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index c263121a9a..b34eaf2016 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -1459,7 +1459,10 @@ init_config(void)
"rte_eth_dev_info_get() failed\n");
/* Update the max_rx_pkt_len to have MTU as RTE_ETHER_MTU */
- if (port->dev_info.max_rx_pktlen && port->dev_info.max_mtu)
+ if (port->dev_info.max_mtu &&
+ port->dev_info.max_mtu != UINT16_MAX &&
+ port->dev_info.max_rx_pktlen &&
+ port->dev_info.max_rx_pktlen > port->dev_info.max_mtu)
overhead_len = port->dev_info.max_rx_pktlen -
port->dev_info.max_mtu;
else
--
2.17.1
