56 unsigned long update_crc(unsigned long crc_accum, const char *data_blk_ptr,
483 	unsigned long crc_accum;  in gen_crc_table()  local
486 		crc_accum = ((unsigned long) i << 24);  in gen_crc_table()
488 			if (crc_accum & 0x80000000L)  in gen_crc_table()
489 				crc_accum = (crc_accum << 1) ^ POLYNOMIAL;  in gen_crc_table()
491 				crc_accum = (crc_accum << 1);  in gen_crc_table()
493 		crc_table[i] = crc_accum;  in gen_crc_table()
501 update_crc(unsigned long crc_accum, const char *data_blk_ptr, int data_blk_size)  in update_crc()  argument
508 		i = ((int) (crc_accum >> 24) ^ *data_blk_ptr++) & 0xff;  in update_crc()
509 		crc_accum = (crc_accum << 8) ^ crc_table[i];  in update_crc()
512 	return crc_accum;  in update_crc()