dpdk: fix compatibility with DPDK < 21.11

Signed-off-by: Andrew Ying <hi@andrewying.com>
Type: fix
Change-Id: I3c428c90146387ad9ce291c7f646d74f06952b40
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
index 0833f18..dc6b0c1 100644
--- a/src/plugins/dpdk/device/common.c
+++ b/src/plugins/dpdk/device/common.c
@@ -160,7 +160,6 @@
     {
       conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
       xd->max_supported_frame_size = dev_info.max_rx_pktlen;
-      mtu = xd->max_supported_frame_size - xd->driver_frame_overhead;
     }
   else
     {
diff --git a/src/plugins/dpdk/device/dpdk_priv.h b/src/plugins/dpdk/device/dpdk_priv.h
index d1a44fd..cb7b185 100644
--- a/src/plugins/dpdk/device/dpdk_priv.h
+++ b/src/plugins/dpdk/device/dpdk_priv.h
@@ -184,7 +184,7 @@
 #define RTE_ETH_RSS_ESP			    ETH_RSS_ESP
 #define RTE_ETH_RSS_L4_DST_ONLY		    ETH_RSS_L4_DST_ONLY
 #define RTE_ETH_RSS_L4_SRC_ONLY		    ETH_RSS_L4_SRC_ONLY
-#define RTE_ETH_RSS_L3_DST_ONL		    ETH_RSS_L3_DST_ONL
+#define RTE_ETH_RSS_L3_DST_ONLY		    ETH_RSS_L3_DST_ONLY
 #define RTE_ETH_RSS_L3_SRC_ONLY		    ETH_RSS_L3_SRC_ONLY
 #define RTE_ETH_RETA_GROUP_SIZE		    RTE_RETA_GROUP_SIZE
 #define RTE_ETH_TX_OFFLOAD_IPV4_CKSUM	    DEV_TX_OFFLOAD_IPV4_CKSUM