> Lance, can you spare some time to make the above mentioned patch?

Sure. Are you looking for something like the changes below, or also including
a search and replace of the deprecated macro name with the new one?

- /** External IP header checksum error. */
+/**
+ * Deprecated.
+ * This flag has been renamed, use PKT_RX_OUTER_IP_CKSUM_BAD instead.
+ */
+#define PKT_RX_EIP_CKSUM_BAD (1ULL << 5)
+
+/**
+ * This flag is set when the outermost IP header checksum is detected as
+ * wrong by the hardware.
+ */
 #define PKT_RX_OUTER_IP_CKSUM_BAD (1ULL << 5)

 /**