215 #define DO1 crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8)
219 unsigned long ZEXPORT crc32(crc, buf, len)  in crc32()  argument
220     unsigned long crc;  in crc32()
237             return crc32_little(crc, buf, len);
239             return crc32_big(crc, buf, len);
242     crc = crc ^ 0xffffffffUL;
250     return crc ^ 0xffffffffUL;
262 local unsigned long crc32_little(crc, buf, len)  in crc32_little()  argument
263     unsigned long crc;  in crc32_little()
270     c = (u4)crc;
302 local unsigned long crc32_big(crc, buf, len)  in crc32_big()  argument
303     unsigned long crc;  in crc32_big()
310     c = REV((u4)crc);