bsd/netinet/cpu_in_cksum.c

98 	unsigned int final_acc;
232 	final_acc = ((sum >> 16) & 0xffff) + (sum & 0xffff);
233 	final_acc = (final_acc >> 16) + (final_acc & 0xffff);
234 	return (~final_acc & 0xffff);
244 	unsigned int final_acc;
390 	final_acc = (sum >> 48) + ((sum >> 32) & 0xffff) +
392 	final_acc = (final_acc >> 16) + (final_acc & 0xffff);
393 	final_acc = (final_acc >> 16) + (final_acc & 0xffff);
394 	return (~final_acc & 0xffff);