-//#define ether_crc(length, data) bitrev32(crc32_le(~0, data, length))
-//#define ether_crc_le(length, data) crc32_le(~0, data, length)
+/* #define ether_crc(length, data) bitrev32(crc32_le(~0, data, length)) */
+/* #define ether_crc_le(length, data) crc32_le(~0, data, length) */