/**
* GRE Header
*/
-struct gre_hdr {
+__extension__
+struct rte_gre_hdr {
#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
uint16_t res2:4; /**< Reserved */
uint16_t s:1; /**< Sequence Number Present bit */
uint16_t ver:3; /**< Version Number */
#endif
uint16_t proto; /**< Protocol Type */
-} __attribute__((__packed__));
+} __rte_packed;
#ifdef __cplusplus
}