88 	int i, start, mid, end, mask;  in do_csum()  local
100 	mid = len - start;  in do_csum()
101 	end = mid & 0xF;  in do_csum()
102 	mid = mid>>4;  in do_csum()
103 	sum0 = mid << 18;  in do_csum()
128 	if (mid) {  in do_csum()
131 		if (mid > 1)  in do_csum()
132 			for (i = 0; i < mid-1; i++) {  in do_csum()
148 	ptr4 = (unsigned int *) &ptr[start + (mid * 16) + (end & 8)];  in do_csum()
155 	ptr2 = (unsigned short *) &ptr[start + (mid * 16) + (end & 12)];  in do_csum()
160 		sum1 += (u64) ptr[start + (mid * 16) + (end & 14)];  in do_csum()
162 	ptr8 = (u64 *) &ptr[start + (mid * 16)];  in do_csum()